Climatch

What can I grow in Darnah?

🇱🇾Darnah, Libya

Darnah is in hardiness zone 10b, almost never frosts, and gets almost no winter chill and 7.9 in of rain a year. Best fits: fig, table and raisin grapes, citrus, canola (rapeseed) and wheat.Darnah is in hardiness zone 10b, almost never frosts, and gets almost no winter chill and 201 mm of rain a year. Best fits: fig, table and raisin grapes, citrus, canola (rapeseed) and wheat.

Find land with a climate like Darnah →
Hardiness zone
Zone 10b
Coldest night 38°FColdest night 4°C
Frost season
Frost-free
Frost is very rare
Frost-safe planting
Any time
No spring frost 9 years in 10
Winter chill
22 hours
9 chill portions, 9 winters in 10
Too little chill even for almonds.
Summer heat
6,975 °F·days3,875 °C·days
Degree days above 50°FDegree days above 10°C
Enough heat to ripen even pistachios and pecans.
Hot days
1 day
Above 95°F a yearAbove 35°C a year
Rain
7.9 in201 mm
Per year
Dry season
9 months
Months where rain can't keep up with the heat
Dry most of the year: nearly every crop needs irrigation.

Assumes you water when rain falls short; Needs irrigation marks crops that need it. Shown by default because Darnah gets under 20 in500 mm of rain a year.

Great fits (80+) 27

  1. FigNeeds irrigation: scores 0 on rain alone

    100Ideal

    Every requirement is in its ideal range.

    Fruit · Perennial

    Why this score

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least 18°FHere: 4°C · Ideal: at least -8°C

    • Warmest-month average100

      Here: 81°F · Ideal: 72–90°FHere: 27°C · Ideal: 22–32°C

    • Frost-free days100

      Here: 365 days · Ideal: at least 200 days

    • Yearly rain100

      Here: 7.9 in · Ideal: 20–39 inHere: 201 mm · Ideal: 500–1,000 mm · covered by irrigation

    Tops die back around 14 °F but roots often regrow. Rain at ripening splits fruit. Rain-fed orchards need a wet winter; in dry places figs are irrigated.Tops die back around −10 °C but roots often regrow. Rain at ripening splits fruit. Rain-fed orchards need a wet winter; in dry places figs are irrigated.

    Ficus carica. Sources: UC ANR: Fig production; FAO ECOCROP: Ficus carica.

    Where else fig grows →

  2. Table and raisin grapesNeeds irrigation: scores 0 on rain alone

    Seedless table and raisin grapes (Flame, Crimson, Thompson Seedless)

    100Ideal

    Every requirement is in its ideal range.

    Fruit · Perennial

    Why this score

    • Winkler index (Apr–Oct degree days)100

      Here: 5,258 °F·days · Ideal: 3,600–6,480 °F·daysHere: 2,921 °C·days · Ideal: 2,000–3,600 °C·days

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least 10°FHere: 4°C · Ideal: at least -12°C

    • Frost-free days100

      Here: 365 days · Ideal: at least 200 days

    • Yearly rain100

      Here: 7.9 in · Ideal: 20–28 inHere: 201 mm · Ideal: 500–700 mm · covered by irrigation

    Want long, hot, dry summers: Winkler region IV–V and beyond, hotter than most wine grapes. Sun-dried raisins need rain-free weeks after harvest; humid late summers bring bunch rot.

    Vitis vinifera. Sources: Christensen (ed.), Raisin Production Manual (UC ANR Publication 3393); Winkler, Cook, Kliewer & Lider 1974, General Viticulture (University of California Press); Steduto, Hsiao, Fereres & Raes 2012, Crop yield response to water (FAO Irrigation and Drainage Paper 66).

    Where else table and raisin grapes grows →

  3. CitrusNeeds irrigation: scores 0 on rain alone

    Sweet orange (Valencia, Navel)

    100Ideal

    Best variety: Sweet orange (Valencia, Navel). Also close: Lemon (100), Satsuma mandarin (cold-hardy) (100)

    Every requirement is in its ideal range.

    Fruit · Perennial

    Why this score

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least 28°FHere: 4°C · Ideal: at least -2°C

    • Average temperature100

      Here: 69°F · Ideal: 64–82°FHere: 21°C · Ideal: 18–28°C

    • Warmest-month average100

      Here: 81°F · Ideal: 75–90°FHere: 27°C · Ideal: 24–32°C

    • Yearly rain100

      Here: 7.9 in · Ideal: 35–79 inHere: 201 mm · Ideal: 900–2,000 mm · covered by irrigation

    Freezes are the deciding risk: a few hours below 27 °F damage fruit and young trees. Our cold-snap estimate is weakest in subtropical climates.Freezes are the deciding risk: a few hours below −3 °C damage fruit and young trees. Our cold-snap estimate is weakest in subtropical climates.

    Citrus spp.. Sources: UF/IFAS Extension: citrus cold hardiness; FAO ECOCROP: Citrus sinensis.

    Where else citrus grows →

  4. Canola (rapeseed)Needs irrigation: scores 46 on rain alone

    Spring canola

    100Ideal

    Plant in Jan

    Every requirement is in its ideal range.

    Oilseed · Annual · Plant in January

    Why this score

    • Months it can be sown (frost-safe and warm enough)100

      Here: 12 months · Ideal: at least 1 month

    • Growing-season average100

      Here: 60°F · Ideal: 54–70°FHere: 16°C · Ideal: 12–21°C

    • Coldest growing-season night (monthly average)100

      Here: 51°F · Ideal: at least 32°FHere: 10°C · Ideal: at least 0°C

    • Growing-season rain100

      Here: 4.1 in · Ideal: 9.8–22 inHere: 104 mm · Ideal: 250–550 mm · covered by irrigation

    Heat over ~86 °F at flowering cuts yield; a cool-season crop in warm climates.Heat over ~30 °C at flowering cuts yield; a cool-season crop in warm climates.

    Brassica napus. Sources: FAO ECOCROP: Brassica napus; Canola Council of Canada: Canola Encyclopedia.

    Where else canola (rapeseed) grows →

  5. WheatNeeds irrigation: scores 76 on rain alone

    Spring wheat

    100Ideal

    Plant in Jan

    Every requirement is in its ideal range.

    Grain · Annual · Plant in January

    Why this score

    • Months it can be sown (frost-safe and warm enough)100

      Here: 12 months · Ideal: at least 1 month

    • Growing-season average100

      Here: 60°F · Ideal: 54–72°FHere: 16°C · Ideal: 12–22°C

    • Coldest growing-season night (monthly average)100

      Here: 51°F · Ideal: at least 32°FHere: 10°C · Ideal: at least 0°C

    • Growing-season rain100

      Here: 4.1 in · Ideal: 9.8–24 inHere: 104 mm · Ideal: 250–600 mm · covered by irrigation

    In mild-winter climates spring wheat is sown in autumn and grows through the cool season.

    Triticum aestivum. Sources: FAO ECOCROP: Triticum aestivum; FAO Irrigation and Drainage Paper 33 (Doorenbos & Kassam 1979).

    Where else wheat grows →

  6. BarleyNeeds irrigation: scores 83 on rain alone

    100Ideal

    Plant in Jan

    Every requirement is in its ideal range.

    Grain · Annual · Plant in January

    Why this score

    • Months it can be sown (frost-safe and warm enough)100

      Here: 12 months · Ideal: at least 1 month

    • Growing-season average100

      Here: 60°F · Ideal: 52–68°FHere: 16°C · Ideal: 11–20°C

    • Coldest growing-season night (monthly average)100

      Here: 51°F · Ideal: at least 32°FHere: 10°C · Ideal: at least 0°C

    • Growing-season rain100

      Here: 4.1 in · Ideal: 7.9–20 inHere: 104 mm · Ideal: 200–500 mm · covered by irrigation

    The most cold- and drought-tolerant small grain; malting barley wants a cool, dry finish.

    Hordeum vulgare. Sources: FAO ECOCROP: Hordeum vulgare; FAO Irrigation and Drainage Paper 33 (Doorenbos & Kassam 1979).

    Where else barley grows →

  7. PotatoNeeds irrigation: scores 0 on rain alone

    100Ideal

    Plant in Jan

    Every requirement is in its ideal range.

    Root crop · Annual · Plant in January

    Why this score

    • Months it can be sown (frost-safe and warm enough)100

      Here: 12 months · Ideal: at least 1 month

    • Growing-season average100

      Here: 60°F · Ideal: 55–68°FHere: 16°C · Ideal: 13–20°C

    • Coldest growing-season night (monthly average)100

      Here: 51°F · Ideal: at least 37°FHere: 10°C · Ideal: at least 3°C

    • Growing-season rain100

      Here: 4.1 in · Ideal: 14–28 inHere: 104 mm · Ideal: 350–700 mm · covered by irrigation

    Tubers form best with cool nights; above ~77 °F tuber growth stalls. In the tropics it's a highland or cool-season crop.Tubers form best with cool nights; above ~25 °C tuber growth stalls. In the tropics it's a highland or cool-season crop.

    Solanum tuberosum. Sources: FAO ECOCROP: Solanum tuberosum; FAO Crop Water Information: potato.

    Where else potato grows →

  8. SoybeanNeeds irrigation: scores 0 on rain alone

    100Ideal

    Plant in Apr

    Every requirement is in its ideal range.

    Oilseed · Annual · Plant in April

    Why this score

    • Months it can be sown (frost-safe and warm enough)100

      Here: 12 months · Ideal: at least 1 month

    • Growing-season average100

      Here: 72°F · Ideal: 68–86°FHere: 22°C · Ideal: 20–30°C

    • Coldest growing-season night (monthly average)100

      Here: 56°F · Ideal: at least 50°FHere: 13°C · Ideal: at least 10°C

    • Growing-season rain100

      Here: 0.5 in · Ideal: 18–35 inHere: 12 mm · Ideal: 450–900 mm · covered by irrigation

    Maturity groups are matched to latitude because flowering is triggered by shortening days.

    Glycine max. Sources: FAO ECOCROP: Glycine max; FAO Crop Water Information: soybean.

    Where else soybean grows →

  9. TomatoNeeds irrigation: scores 76 on rain alone

    100Ideal

    Plant in Mar

    Every requirement is in its ideal range.

    Vegetable · Annual · Plant in March

    Why this score

    • Months it can be sown (frost-safe and warm enough)100

      Here: 12 months · Ideal: at least 1 month

    • Growing-season average100

      Here: 68°F · Ideal: 64–81°FHere: 20°C · Ideal: 18–27°C

    • Coldest growing-season night (monthly average)100

      Here: 53°F · Ideal: at least 50°FHere: 12°C · Ideal: at least 10°C

    • Growing-season rain100

      Here: 1.0 in · Ideal: 9.8–24 inHere: 25 mm · Ideal: 250–600 mm · covered by irrigation

    Fruit set fails when nights drop below ~50 °F or days top ~95 °F. Wet seasons bring blight.Fruit set fails when nights drop below ~10 °C or days top ~35 °C. Wet seasons bring blight.

    Solanum lycopersicum. Sources: FAO ECOCROP: Solanum lycopersicum; FAO Crop Water Information: tomato.

    Where else tomato grows →

  10. PeanutNeeds irrigation: scores 0 on rain alone

    100Ideal

    Plant in May

    Every requirement is in its ideal range.

    Oilseed · Annual · Plant in May

    Why this score

    • Months it can be sown (frost-safe and warm enough)100

      Here: 8 months · Ideal: at least 1 month

    • Growing-season average100

      Here: 77°F · Ideal: 72–86°FHere: 25°C · Ideal: 22–30°C

    • Coldest growing-season night (monthly average)100

      Here: 61°F · Ideal: at least 57°FHere: 16°C · Ideal: at least 14°C

    • Growing-season rain100

      Here: 0.4 in · Ideal: 18–35 inHere: 10 mm · Ideal: 450–900 mm · covered by irrigation

    Needs warm, light soil for pods to develop underground.

    Arachis hypogaea. Sources: FAO ECOCROP: Arachis hypogaea; FAO Crop Water Information: groundnut.

    Where else peanut grows →

  11. SunflowerNeeds irrigation: scores 37 on rain alone

    100Ideal

    Plant in Mar

    Every requirement is in its ideal range.

    Oilseed · Annual · Plant in March

    Why this score

    • Months it can be sown (frost-safe and warm enough)100

      Here: 12 months · Ideal: at least 1 month

    • Growing-season average100

      Here: 68°F · Ideal: 64–82°FHere: 20°C · Ideal: 18–28°C

    • Coldest growing-season night (monthly average)100

      Here: 53°F · Ideal: at least 43°FHere: 12°C · Ideal: at least 6°C

    • Growing-season rain100

      Here: 1.0 in · Ideal: 12–28 inHere: 25 mm · Ideal: 300–700 mm · covered by irrigation

    Deep roots make it fairly drought tolerant.

    Helianthus annuus. Sources: FAO ECOCROP: Helianthus annuus; FAO Crop Water Information: sunflower.

    Where else sunflower grows →

  12. Maize (corn)Needs irrigation: scores 0 on rain alone

    100Ideal

    Plant in Mar

    Every requirement is in its ideal range.

    Grain · Annual · Plant in March

    Why this score

    • Months it can be sown (frost-safe and warm enough)100

      Here: 12 months · Ideal: at least 1 month

    • Growing-season average100

      Here: 68°F · Ideal: 64–86°FHere: 20°C · Ideal: 18–30°C

    • Coldest growing-season night (monthly average)100

      Here: 53°F · Ideal: at least 50°FHere: 12°C · Ideal: at least 10°C

    • Growing-season rain100

      Here: 1.0 in · Ideal: 16–35 inHere: 25 mm · Ideal: 400–900 mm · covered by irrigation

    • Degree days above 50°FDegree days above 10°C100

      Here: 6,975 °F·days · Ideal: at least 1,980 °F·daysHere: 3,875 °C·days · Ideal: at least 1,100 °C·days

    Hybrids are matched to season length by relative maturity. Heat over ~95 °F at silking hurts pollination.Hybrids are matched to season length by relative maturity. Heat over ~35 °C at silking hurts pollination.

    Zea mays. Sources: FAO ECOCROP: Zea mays; FAO Irrigation and Drainage Paper 33 (Doorenbos & Kassam 1979, Yield response to water).

    Where else maize (corn) grows →

  13. TeaNeeds irrigation: scores 0 on rain alone

    China type (var. sinensis)

    100Ideal

    Best variety: China type (var. sinensis). Also close: Assam type (var. assamica) (98)

    Every requirement is in its ideal range.

    Beverage · Perennial

    Why this score

    • Average temperature100

      Here: 69°F · Ideal: 61–77°FHere: 21°C · Ideal: 16–25°C

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least 14°FHere: 4°C · Ideal: at least -10°C

    • Yearly rain100

      Here: 7.9 in · Ideal: 59–118 inHere: 201 mm · Ideal: 1,500–3,000 mm · covered by irrigation

    • Dry-season length100

      Here: 9 months · Ideal: at most 2 months · covered by irrigation

    • Days above 95°FDays above 35°C100

      Here: 1 days · Ideal: at most 10 days

    Needs acidic soil and steady rain; the finest teas come from cool highlands.

    Camellia sinensis. Sources: Carr 1972, The climatic requirements of the tea plant: a review (Experimental Agriculture); FAO ECOCROP: Camellia sinensis.

    Where else tea grows →

  14. AvocadoNeeds irrigation: scores 0 on rain alone

    Hass (Guatemalan × Mexican)

    100Good fit

    Best variety: Hass (Guatemalan × Mexican). Also close: Mexican-type (cold-hardy, e.g. Mexicola, Bacon) (100)

    Every requirement is in its ideal range.

    Fruit · Perennial

    Why this score

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least 32°FHere: 4°C · Ideal: at least 0°C

    • Average temperature100

      Here: 69°F · Ideal: 61–75°FHere: 21°C · Ideal: 16–24°C

    • Days above 95°FDays above 35°C100

      Here: 1 days · Ideal: at most 10 days

    • Yearly rain100

      Here: 7.9 in · Ideal: 39–71 inHere: 201 mm · Ideal: 1,000–1,800 mm · covered by irrigation

    Most commercial orchards are irrigated. Needs free-draining soil; root rot in waterlogged ground. Hot dry winds at flowering cut fruit set.

    Persea americana. Sources: University of California Agriculture and Natural Resources: avocado production guidance; FAO ECOCROP: Persea americana.

    Where else avocado grows →

  15. CottonNeeds irrigation: scores 0 on rain alone

    100Good fit

    Plant in Apr

    Every requirement is in its ideal range.

    Fiber · Annual · Plant in April

    Why this score

    • Months it can be sown (frost-safe and warm enough)100

      Here: 10 months · Ideal: at least 1 month

    • Growing-season average100

      Here: 75°F · Ideal: 72–90°FHere: 24°C · Ideal: 22–32°C

    • Coldest growing-season night (monthly average)100

      Here: 56°F · Ideal: at least 54°FHere: 13°C · Ideal: at least 12°C

    • Growing-season rain100

      Here: 0.6 in · Ideal: 20–39 inHere: 15 mm · Ideal: 500–1,000 mm · covered by irrigation

    • Frost-free days100

      Here: 365 days · Ideal: at least 190 days

    Needs a long, hot season and dry weather when bolls open.

    Gossypium hirsutum. Sources: FAO ECOCROP: Gossypium hirsutum; FAO Crop Water Information: cotton.

    Where else cotton grows →

  16. Strawberry

    100Good fit

    Plant in Jan

    Every requirement is in its ideal range.

    Fruit · Annual · Plant in January

    Why this score

    • Months it can be sown (frost-safe and warm enough)100

      Here: 12 months · Ideal: at least 1 month

    • Growing-season average100

      Here: 59°F · Ideal: 57–75°FHere: 15°C · Ideal: 14–24°C

    • Coldest growing-season night (monthly average)100

      Here: 51°F · Ideal: at least 37°FHere: 10°C · Ideal: at least 3°C

    • Growing-season rain100

      Here: 3.9 in · Ideal: 5.9–18 inHere: 99 mm · Ideal: 150–450 mm · covered by irrigation

    Grown as a short-season crop in most commercial systems; day-neutral types fruit through summer.

    Fragaria × ananassa. Sources: FAO ECOCROP: Fragaria × ananassa; UC ANR: Strawberry production.

    Where else strawberry grows →

  17. MacadamiaNeeds irrigation: scores 0 on rain alone

    100Good fit

    Every requirement is in its ideal range.

    Nut · Perennial

    Why this score

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least 30°FHere: 4°C · Ideal: at least -1°C

    • Average temperature100

      Here: 69°F · Ideal: 64–77°FHere: 21°C · Ideal: 18–25°C

    • Days above 95°FDays above 35°C100

      Here: 1 days · Ideal: at most 5 days

    • Yearly rain100

      Here: 7.9 in · Ideal: 47–98 inHere: 201 mm · Ideal: 1,200–2,500 mm · covered by irrigation

    Subtropical: best in frost-free, humid coastal climates. Strong winds break limbs.

    Macadamia integrifolia / M. tetraphylla. Sources: Hort Innovation / Australian Macadamia Society growing guides; FAO ECOCROP: Macadamia integrifolia.

    Where else macadamia grows →

  18. RiceNeeds irrigation: scores 0 on rain alone

    100Good fit

    Plant in May

    Every requirement is in its ideal range.

    Grain · Annual · Plant in May

    Why this score

    • Months it can be sown (frost-safe and warm enough)100

      Here: 10 months · Ideal: at least 1 month

    • Growing-season average100

      Here: 76°F · Ideal: 72–88°FHere: 25°C · Ideal: 22–31°C

    • Coldest growing-season night (monthly average)100

      Here: 61°F · Ideal: at least 59°FHere: 16°C · Ideal: at least 15°C

    • Growing-season rain100

      Here: 0.3 in · Ideal: 28–79 inHere: 7 mm · Ideal: 700–2,000 mm · covered by irrigation

    Paddy rice is usually flooded from irrigation or monsoon rain; nights below ~59 °F at flowering cause empty grains.Paddy rice is usually flooded from irrigation or monsoon rain; nights below ~15 °C at flowering cause empty grains.

    Oryza sativa. Sources: FAO ECOCROP: Oryza sativa; FAO Crop Water Information: rice.

    Where else rice grows →

  19. HempNeeds irrigation: scores 70 on rain alone

    Autoflowering

    100Good fit

    Plant in Mar

    Best variety: Autoflowering. Also close: Grain/fibre cultivars (e.g. Finola, Futura) (96)

    Every requirement is in its ideal range.

    Fiber · Annual · Plant in March

    Why this score

    • Months it can be sown (frost-safe and warm enough)100

      Here: 12 months · Ideal: at least 1 month

    • Growing-season average100

      Here: 65°F · Ideal: 64–82°FHere: 18°C · Ideal: 18–28°C

    • Coldest growing-season night (monthly average)100

      Here: 53°F · Ideal: at least 41°FHere: 12°C · Ideal: at least 5°C

    • Growing-season rain100

      Here: 0.9 in · Ideal: 14–28 inHere: 23 mm · Ideal: 350–700 mm · covered by irrigation

    Grain and fibre cultivars bred at high latitudes flower too early under the short days of the tropics. Licensing rules vary by country. Autoflowering: Day-neutral: flowers on age, not day length, so it suits low latitudes and short seasons.

    Cannabis sativa. Sources: Amaducci et al. 2015, Key cultivation techniques for hemp in Europe and China (Industrial Crops and Products); FAO ECOCROP: Cannabis sativa.

    Where else hemp grows →

  20. SorghumNeeds irrigation: scores 20 on rain alone

    100Good fit

    Plant in Apr

    Every requirement is in its ideal range.

    Grain · Annual · Plant in April

    Why this score

    • Months it can be sown (frost-safe and warm enough)100

      Here: 10 months · Ideal: at least 1 month

    • Growing-season average100

      Here: 72°F · Ideal: 72–91°FHere: 22°C · Ideal: 22–33°C

    • Coldest growing-season night (monthly average)100

      Here: 56°F · Ideal: at least 54°FHere: 13°C · Ideal: at least 12°C

    • Growing-season rain100

      Here: 0.5 in · Ideal: 12–28 inHere: 12 mm · Ideal: 300–700 mm · covered by irrigation

    Handles heat and drought better than maize.

    Sorghum bicolor. Sources: FAO ECOCROP: Sorghum bicolor; FAO Crop Water Information: sorghum.

    Where else sorghum grows →

  21. Coffee (arabica)Needs irrigation: scores 0 on rain alone

    97Good fit

    Winters get too cold

    Holding it back: Winters get too cold: 38°F here, ideal at least 39°FWinters get too cold: 4°C here, ideal at least 4°C

    Beverage · Perennial

    Why this score

    • Average temperature100

      Here: 69°F · Ideal: 64–72°FHere: 21°C · Ideal: 18–22°C

    • Coldest night of the year (average)90

      Here: 38°F · Ideal: at least 39°FHere: 4°C · Ideal: at least 4°C

    • Yearly rain100

      Here: 7.9 in · Ideal: 55–91 inHere: 201 mm · Ideal: 1,400–2,300 mm · covered by irrigation

    • Dry-season length100

      Here: 9 months · Ideal: at most 4 months · covered by irrigation

    • Days above 95°FDays above 35°C100

      Here: 1 days · Ideal: at most 2 days

    A short dry season (2–3 months) helps flowering happen all at once. Above ~73 °F average, quality and yield fall; frost kills.A short dry season (2–3 months) helps flowering happen all at once. Above ~23 °C average, quality and yield fall; frost kills.

    Coffea arabica. Sources: DaMatta & Ramalho 2006, Impacts of drought and temperature stress on coffee physiology and production (Brazilian Journal of Plant Physiology); FAO ECOCROP: Coffea arabica.

    Where else coffee (arabica) grows →

  22. PeachNeeds irrigation: scores 0 on rain alone

    Low-chill (Florida and subtropical types)

    94Good fit

    Not enough winter chill

    Best variety: Low-chill (Florida and subtropical types)

    Holding it back: Not enough winter chill: 9 portions here, ideal 10–25 portions

    Fruit · Perennial

    Why this score

    • Winter chill (9 winters in 10)82

      Here: 9 portions · Ideal: 10–25 portions

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least 18°FHere: 4°C · Ideal: at least -8°C

    • Frost-free days100

      Here: 365 days · Ideal: at least 170 days

    • Degree days above 50°FDegree days above 10°C100

      Here: 6,975 °F·days · Ideal: at least 2,340 °F·daysHere: 3,875 °C·days · Ideal: at least 1,300 °C·days

    • Yearly rain100

      Here: 7.9 in · Ideal: 24–47 inHere: 201 mm · Ideal: 600–1,200 mm · covered by irrigation

    Flower buds are killed around −9 °F in midwinter and by frost after bloom.Flower buds are killed around −23 °C in midwinter and by frost after bloom.

    Prunus persica. Sources: Fadón et al. 2020, Chilling and heat requirements of temperate stone fruit trees (Prunus sp.) (Agronomy); FAO ECOCROP: Prunus persica.

    Where else peach grows →

  23. LavenderNeeds irrigation: scores 0 on rain alone

    Lavandin (L. × intermedia, Grosso)

    93Good fit

    Winters too mild

    Best variety: Lavandin (L. × intermedia, Grosso)

    Holding it back: Winters too mild: 58°F here, ideal at most 54°FWinters too mild: 14°C here, ideal at most 12°C

    Herb · Perennial

    Why this score

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least 3°FHere: 4°C · Ideal: at least -16°C

    • Warmest-month average100

      Here: 81°F · Ideal: 66–82°FHere: 27°C · Ideal: 19–28°C

    • Coldest-month average61

      Here: 58°F · Ideal: at most 54°FHere: 14°C · Ideal: at most 12°C

    • Frost-free days100

      Here: 365 days · Ideal: at least 120 days

    • Yearly rain100

      Here: 7.9 in · Ideal: 18–33 inHere: 201 mm · Ideal: 450–850 mm · covered by irrigation

    Dislikes wet winters and humid summers more than cold. Needs sharp drainage.

    Lavandula angustifolia / L. × intermedia. Sources: University extension lavender production guides (e.g. Oregon State, Washington State); FAO ECOCROP: Lavandula angustifolia.

    Where else lavender grows →

  24. SugarcaneNeeds irrigation: scores 0 on rain alone

    89Good fit

    Too cool overall

    Holding it back: Too cool overall: 69°F here, ideal 72–86°FToo cool overall: 21°C here, ideal 22–30°C

    Sugar crop · Perennial

    Why this score

    • Average temperature72

      Here: 69°F · Ideal: 72–86°FHere: 21°C · Ideal: 22–30°C

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least 36°FHere: 4°C · Ideal: at least 2°C

    • Frost-free days100

      Here: 365 days · Ideal: at least 300 days

    • Yearly rain100

      Here: 7.9 in · Ideal: 43–98 inHere: 201 mm · Ideal: 1,100–2,500 mm · covered by irrigation

    A cooler, drier spell before harvest raises sugar content. Often irrigated.

    Saccharum officinarum. Sources: FAO ECOCROP: Saccharum officinarum; FAO Crop Water Information: sugarcane.

    Where else sugarcane grows →

  25. AppleNeeds irrigation: scores 0 on rain alone

    Low-chill (Anna, Dorsett Golden)

    85Good fit

    Not enough winter chill

    Best variety: Low-chill (Anna, Dorsett Golden)

    Holding it back: Not enough winter chill: 9 portions here, ideal 12–30 portions

    Fruit · Perennial

    Why this score

    • Winter chill (9 winters in 10)52

      Here: 9 portions · Ideal: 12–30 portions

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least -4°FHere: 4°C · Ideal: at least -20°C

    • Frost-free days100

      Here: 365 days · Ideal: at least 140 days

    • Degree days above 50°FDegree days above 10°C100

      Here: 6,975 °F·days · Ideal: at least 1,800 °F·daysHere: 3,875 °C·days · Ideal: at least 1,000 °C·days

    • Days above 95°FDays above 35°C100

      Here: 1 days · Ideal: at most 30 days

    • Yearly rain100

      Here: 7.9 in · Ideal: 26–51 inHere: 201 mm · Ideal: 650–1,300 mm · covered by irrigation

    Rootstock and variety set cold hardiness; the hardiest survive zone 3. Hot summers hurt colour and cause sunburn.

    Malus domestica. Sources: Luedeling 2012, Climate change impacts on winter chill for temperate fruit and nut production: a review (Scientia Horticulturae); FAO ECOCROP: Malus domestica.

    Where else apple grows →

  26. GarlicNeeds irrigation: scores 0 on rain alone

    Softneck (California Early, Silverskin)

    82Good fit

    Winters too mild

    Best variety: Softneck (California Early, Silverskin)

    Holding it back: Winters too mild: 58°F here, ideal at most 54°FWinters too mild: 14°C here, ideal at most 12°C

    Vegetable · Annual

    Why this score

    • Coldest-month average61

      Here: 58°F · Ideal: at most 54°FHere: 14°C · Ideal: at most 12°C

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least 5°FHere: 4°C · Ideal: at least -15°C

    • Warmest-month average100

      Here: 81°F · Ideal: 64–82°FHere: 27°C · Ideal: 18–28°C

    • Yearly rain100

      Here: 7.9 in · Ideal: 16–39 inHere: 201 mm · Ideal: 400–1,000 mm · covered by irrigation

    Planted in autumn and harvested in early summer; cloves need weeks below ~50 °F to form bulbs (hardnecks more than softnecks).Planted in autumn and harvested in early summer; cloves need weeks below ~10 °C to form bulbs (hardnecks more than softnecks).

    Allium sativum. Sources: UC ANR: Garlic production in California; FAO ECOCROP: Allium sativum.

    Where else garlic grows →

  27. MangoNeeds irrigation: scores 0 on rain alone

    82Good fit

    Too cool overall

    Holding it back: Too cool overall: 69°F here, ideal 73–86°FToo cool overall: 21°C here, ideal 23–30°C

    Fruit · Perennial

    Why this score

    • Coldest night of the year (average)92

      Here: 38°F · Ideal: at least 39°FHere: 4°C · Ideal: at least 4°C

    • Average temperature39

      Here: 69°F · Ideal: 73–86°FHere: 21°C · Ideal: 23–30°C

    • Dry-season length100

      Here: 9 months · Ideal: at least 3 months

    • Yearly rain100

      Here: 7.9 in · Ideal: 31–98 inHere: 201 mm · Ideal: 800–2,500 mm · covered by irrigation

    A dry or cool spell before flowering gives a good crop; rain at flowering brings anthracnose.

    Mangifera indica. Sources: Litz (ed.), The Mango: Botany, Production and Uses (CABI); FAO ECOCROP: Mangifera indica.

    Where else mango grows →

Worth a try (50–79) 6

  1. BananaNeeds irrigation: scores 0 on rain alone

    78Marginal

    Too cool overall

    Holding it back: Too cool overall: 69°F here, ideal 72–86°FToo cool overall: 21°C here, ideal 22–30°C

    Fruit · Perennial

    Why this score

    • Coldest-month average73

      Here: 58°F · Ideal: at least 61°FHere: 14°C · Ideal: at least 16°C

    • Coldest night of the year (average)72

      Here: 38°F · Ideal: at least 41°FHere: 4°C · Ideal: at least 5°C

    • Average temperature64

      Here: 69°F · Ideal: 72–86°FHere: 21°C · Ideal: 22–30°C

    • Yearly rain100

      Here: 7.9 in · Ideal: 59–102 inHere: 201 mm · Ideal: 1,500–2,600 mm · covered by irrigation

    • Dry-season length100

      Here: 9 months · Ideal: at most 2 months · covered by irrigation

    Growth stops below ~57 °F; wind tears the leaves.Growth stops below ~14 °C; wind tears the leaves.

    Musa spp.. Sources: FAO ECOCROP: Musa acuminata; FAO Crop Water Information: banana.

    Where else banana grows →

  2. CassavaNeeds irrigation: scores 0 on rain alone

    77Marginal

    Too cool overall

    Holding it back: Too cool overall: 69°F here, ideal 72–86°FToo cool overall: 21°C here, ideal 22–30°C

    Root crop · Perennial

    Why this score

    • Average temperature72

      Here: 69°F · Ideal: 72–86°FHere: 21°C · Ideal: 22–30°C

    • Coldest night of the year (average)72

      Here: 38°F · Ideal: at least 41°FHere: 4°C · Ideal: at least 5°C

    • Yearly rain100

      Here: 7.9 in · Ideal: 39–79 inHere: 201 mm · Ideal: 1,000–2,000 mm · covered by irrigation

    Very drought tolerant once established; harvested 8–24 months after planting.

    Manihot esculenta. Sources: FAO ECOCROP: Manihot esculenta; FAO 2013, Save and Grow: Cassava.

    Where else cassava grows →

  3. SaffronNeeds irrigation: scores 18 on rain alone

    75Marginal

    Winters too mild

    Holding it back: Winters too mild: 58°F here, ideal 30–50°FWinters too mild: 14°C here, ideal -1 to 10°C

    Herb · Perennial

    Why this score

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least 1°FHere: 4°C · Ideal: at least -17°C

    • Coldest-month average13

      Here: 58°F · Ideal: 30–50°FHere: 14°C · Ideal: -1 to 10°C

    • Warmest-month average100

      Here: 81°F · Ideal: 68–82°FHere: 27°C · Ideal: 20–28°C

    • Dry-season length100

      Here: 9 months · Ideal: at least 2 months

    • Yearly rain100

      Here: 7.9 in · Ideal: 14–28 inHere: 201 mm · Ideal: 350–700 mm · covered by irrigation

    Corms rest through a hot, dry summer and flower in autumn. Wet summers rot them.

    Crocus sativus. Sources: Gresta et al. 2008, Saffron, an alternative crop for sustainable agricultural systems (Agronomy for Sustainable Development); Kafi et al. 2006, Saffron (Crocus sativus): Production and Processing.

    Where else saffron grows →

  4. Wine grapesNeeds irrigation: scores 0 on rain alone

    Hot-climate (Grenache, Zinfandel, Tempranillo)

    75Marginal

    Too hot for quality fruit

    Best variety: Hot-climate (Grenache, Zinfandel, Tempranillo)

    Holding it back: Too hot for quality fruit: 5,258 °F·days here, ideal 3,420–4,680 °F·daysToo hot for quality fruit: 2,921 °C·days here, ideal 1,900–2,600 °C·days

    Fruit · Perennial

    Why this score

    • Winkler index (Apr–Oct degree days)36

      Here: 5,258 °F·days · Ideal: 3,420–4,680 °F·daysHere: 2,921 °C·days · Ideal: 1,900–2,600 °C·days

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least 10°FHere: 4°C · Ideal: at least -12°C

    • Frost-free days100

      Here: 365 days · Ideal: at least 180 days

    • Yearly rain100

      Here: 7.9 in · Ideal: 20–35 inHere: 201 mm · Ideal: 500–900 mm · covered by irrigation

    Winkler regions run from I, under 2,500 °F·days, to V, over 4,000 °F·days (degree days above 50 °F, Apr–Oct). Wet summers mean mildew pressure.Winkler regions run from I, under 1,389 °C·days, to V, over 2,222 °C·days (degree days above 10 °C, Apr–Oct). Wet summers mean mildew pressure.

    Vitis vinifera. Sources: Amerine & Winkler 1944, Composition and quality of musts and wines of California grapes (Hilgardia); Jones et al. 2010, Spatial analysis of climate in winegrape growing regions in the western United States (American Journal of Enology and Viticulture); Steduto, Hsiao, Fereres & Raes 2012, Crop yield response to water (FAO Irrigation and Drainage Paper 66).

    Where else wine grapes grows →

  5. BlueberryNeeds irrigation: scores 0 on rain alone

    Southern highbush (Emerald, Star)

    74Marginal

    Not enough winter chill

    Best variety: Southern highbush (Emerald, Star)

    Holding it back: Not enough winter chill: 9 portions here, ideal 15–55 portions

    Fruit · Perennial

    Why this score

    • Winter chill (9 winters in 10)34

      Here: 9 portions · Ideal: 15–55 portions

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least 14°FHere: 4°C · Ideal: at least -10°C

    • Frost-free days100

      Here: 365 days · Ideal: at least 140 days

    • Days above 95°FDays above 35°C100

      Here: 1 days · Ideal: at most 50 days

    • Yearly rain100

      Here: 7.9 in · Ideal: 30–59 inHere: 201 mm · Ideal: 750–1,500 mm · covered by irrigation

    Needs acidic soil (pH 4.5–5.5), which climate can't tell us. Shallow roots: irrigate in dry spells.

    Vaccinium corymbosum / V. virgatum. Sources: Retamales & Hancock, Blueberries (CABI, 2nd ed.); NC State Extension: blueberry chill requirements.

    Where else blueberry grows →

  6. Date palmNeeds irrigation: scores 0 on rain alone

    64Marginal

    Summers too cool

    Holding it back: Summers too cool: 81°F here, ideal 88–104°FSummers too cool: 27°C here, ideal 31–40°C

    Fruit · Perennial

    Why this score

    • Warmest-month average21

      Here: 81°F · Ideal: 88–104°FHere: 27°C · Ideal: 31–40°C

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least 23°FHere: 4°C · Ideal: at least -5°C

    • Yearly rain100

      Here: 7.9 in · Ideal: at least 59 inHere: 201 mm · Ideal: at least 1,500 mm · covered by irrigation

    • Dry-season length100

      Here: 9 months · Ideal: at least 8 months

    Fruit only ripens with intense summer heat and a long dry season; rain and humidity at ripening spoil it. Never grown on rain alone: roots need groundwater or irrigation.

    Phoenix dactylifera. Sources: Zaid & de Wet 2002, Date Palm Cultivation (FAO Plant Production and Protection Paper 156); FAO ECOCROP: Phoenix dactylifera.

    Where else date palm grows →
Won't grow here 10▸

  1. Almond

    0Won't grow

    Not enough winter chill

    Ruled out. Not enough winter chill: 9 portions here, ideal at least 25 portions

    Nut · Perennial

    Why this score

    • Winter chill (9 winters in 10)0

      Here: 9 portions · Ideal: at least 25 portions

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least 9°FHere: 4°C · Ideal: at least -13°C

    • Frost-free days100

      Here: 365 days · Ideal: at least 210 days

    • Degree days above 50°FDegree days above 10°C100

      Here: 6,975 °F·days · Ideal: at least 3,420 °F·daysHere: 3,875 °C·days · Ideal: at least 1,900 °C·days

    • Yearly rain100

      Here: 7.9 in · Ideal: 22–35 inHere: 201 mm · Ideal: 550–900 mm · covered by irrigation

    Blooms in late winter, so spring frosts are the main risk. Humid springs bring disease. Mostly irrigated.

    Prunus dulcis. Sources: Fadón et al. 2020, Chilling and heat requirements of temperate stone fruit trees (Prunus sp.) (Agronomy); UC ANR: Almond Production Manual; Steduto, Hsiao, Fereres & Raes 2012, Crop yield response to water (FAO Irrigation and Drainage Paper 66).

    Where else almond grows →

  2. Cacao

    0Won't grow

    Winters too cold

    Ruled out. Winters too cold: 58°F here, ideal at least 68°FWinters too cold: 14°C here, ideal at least 20°C

    Beverage · Perennial

    Why this score

    • Coldest-month average0

      Here: 58°F · Ideal: at least 68°FHere: 14°C · Ideal: at least 20°C

    • Coldest night of the year (average)0

      Here: 38°F · Ideal: at least 50°FHere: 4°C · Ideal: at least 10°C

    • Average temperature14

      Here: 69°F · Ideal: 75–84°FHere: 21°C · Ideal: 24–29°C

    • Yearly rain100

      Here: 7.9 in · Ideal: 59–98 inHere: 201 mm · Ideal: 1,500–2,500 mm · covered by irrigation

    • Dry-season length100

      Here: 9 months · Ideal: at most 2 months · covered by irrigation

    Humid lowland tropics, usually within 20° of the equator, ideally under shade trees.

    Theobroma cacao. Sources: Wood & Lass, Cocoa (Longman, 4th ed.); FAO ECOCROP: Theobroma cacao.

    Where else cacao grows →

  3. Cherry

    Sweet cherry (Bing, Lapins)

    0Won't grow

    Not enough winter chill

    Ruled out. Not enough winter chill: 9 portions here, ideal at least 60 portions

    Fruit · Perennial

    Why this score

    • Winter chill (9 winters in 10)0

      Here: 9 portions · Ideal: at least 60 portions

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least -11°FHere: 4°C · Ideal: at least -24°C

    • Frost-free days100

      Here: 365 days · Ideal: at least 150 days

    • Degree days above 50°FDegree days above 10°C100

      Here: 6,975 °F·days · Ideal: at least 1,440 °F·daysHere: 3,875 °C·days · Ideal: at least 800 °C·days

    • Days above 95°FDays above 35°C100

      Here: 1 days · Ideal: at most 30 days

    • Yearly rain100

      Here: 7.9 in · Ideal: 20–39 inHere: 201 mm · Ideal: 500–1,000 mm · covered by irrigation

    Rain near harvest splits sweet cherries. Spring frosts at bloom are the main yield risk.

    Prunus avium / P. cerasus. Sources: Fadón et al. 2020, Chilling and heat requirements of temperate stone fruit trees (Prunus sp.) (Agronomy); FAO ECOCROP: Prunus avium.

    Where else cherry grows →

  4. Hops

    0Won't grow

    Winters too mild

    Ruled out. Winters too mild: 58°F here, ideal at most 43°FWinters too mild: 14°C here, ideal at most 6°C

    Herb · Perennial

    Why this score

    • Longest day30

      Here: 14.3 h · Ideal: at least 15.0 h

    • Coldest-month average0

      Here: 58°F · Ideal: at most 43°FHere: 14°C · Ideal: at most 6°C

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least -18°FHere: 4°C · Ideal: at least -28°C

    • Frost-free days100

      Here: 365 days · Ideal: at least 130 days

    • Warmest-month average39

      Here: 81°F · Ideal: 63–75°FHere: 27°C · Ideal: 17–24°C

    • Yearly rain100

      Here: 7.9 in · Ideal: 20–39 inHere: 201 mm · Ideal: 500–1,000 mm · covered by irrigation

    Long summer days drive cone yield, which is why production clusters between 35° and 55° latitude. Needs a cold winter for dormancy.

    Humulus lupulus. Sources: Neve 1991, Hops (Chapman & Hall); FAO ECOCROP: Humulus lupulus.

    Where else hops grows →

  5. Kiwifruit

    0Won't grow

    Not enough winter chill

    Ruled out. Not enough winter chill: 9 portions here, ideal at least 42 portions

    Fruit · Perennial

    Why this score

    • Winter chill (9 winters in 10)0

      Here: 9 portions · Ideal: at least 42 portions

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least 14°FHere: 4°C · Ideal: at least -10°C

    • Frost-free days100

      Here: 365 days · Ideal: at least 240 days

    • Degree days above 50°FDegree days above 10°C100

      Here: 6,975 °F·days · Ideal: at least 2,520 °F·daysHere: 3,875 °C·days · Ideal: at least 1,400 °C·days

    • Days above 95°FDays above 35°C100

      Here: 1 days · Ideal: at most 30 days

    • Yearly rain100

      Here: 7.9 in · Ideal: 39–79 inHere: 201 mm · Ideal: 1,000–2,000 mm · covered by irrigation

    Shoots are tender to spring frost; vines need shelter from wind.

    Actinidia deliciosa. Sources: Zespri / New Zealand kiwifruit growing guidance; FAO ECOCROP: Actinidia deliciosa.

    Where else kiwifruit grows →

  6. Olive

    0Won't grow

    Not enough winter chill

    Ruled out. Not enough winter chill: 22 hours here, ideal at least 300 hours

    Fruit · Perennial

    Why this score

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least 18°FHere: 4°C · Ideal: at least -8°C

    • Chill hours (9 winters in 10)0

      Here: 22 hours · Ideal: at least 300 hours

    • Warmest-month average100

      Here: 81°F · Ideal: 73–86°FHere: 27°C · Ideal: 23–30°C

    • Degree days above 50°FDegree days above 10°C100

      Here: 6,975 °F·days · Ideal: at least 3,240 °F·daysHere: 3,875 °C·days · Ideal: at least 1,800 °C·days

    • Yearly rain100

      Here: 7.9 in · Ideal: 20–35 inHere: 201 mm · Ideal: 500–900 mm · covered by irrigation

    Needs a mild winter chill to flower well, and long warm summers to ripen. Humid summers bring olive knot and peacock spot.

    Olea europaea. Sources: Connor & Fereres 2005, The physiology of adaptation and yield expression in olive (Horticultural Reviews); FAO ECOCROP: Olea europaea; Steduto, Hsiao, Fereres & Raes 2012, Crop yield response to water (FAO Irrigation and Drainage Paper 66).

    Where else olive grows →

  7. Pear

    European pear (Bartlett, Conference)

    0Won't grow

    Not enough winter chill

    Ruled out. Not enough winter chill: 9 portions here, ideal at least 60 portions

    Fruit · Perennial

    Why this score

    • Winter chill (9 winters in 10)0

      Here: 9 portions · Ideal: at least 60 portions

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least -18°FHere: 4°C · Ideal: at least -28°C

    • Frost-free days100

      Here: 365 days · Ideal: at least 150 days

    • Degree days above 50°FDegree days above 10°C100

      Here: 6,975 °F·days · Ideal: at least 1,800 °F·daysHere: 3,875 °C·days · Ideal: at least 1,000 °C·days

    • Yearly rain100

      Here: 7.9 in · Ideal: 24–47 inHere: 201 mm · Ideal: 600–1,200 mm · covered by irrigation

    Warm, humid springs raise fire blight risk.

    Pyrus communis / P. pyrifolia. Sources: Luedeling 2012, Climate change impacts on winter chill for temperate fruit and nut production: a review (Scientia Horticulturae); FAO ECOCROP: Pyrus communis.

    Where else pear grows →

  8. Pecan

    0Won't grow

    Not enough winter chill

    Ruled out. Not enough winter chill: 9 portions here, ideal at least 30 portions

    Nut · Perennial

    Why this score

    • Winter chill (9 winters in 10)0

      Here: 9 portions · Ideal: at least 30 portions

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least 0°FHere: 4°C · Ideal: at least -18°C

    • Frost-free days100

      Here: 365 days · Ideal: at least 210 days

    • Degree days above 50°FDegree days above 10°C100

      Here: 6,975 °F·days · Ideal: at least 4,320 °F·daysHere: 3,875 °C·days · Ideal: at least 2,400 °C·days

    • Yearly rain100

      Here: 7.9 in · Ideal: 30–59 inHere: 201 mm · Ideal: 750–1,500 mm · covered by irrigation

    Needs a long, hot season to fill the nuts.

    Carya illinoinensis. Sources: Wells 2017, Pecan: America's Native Nut Tree (University of Alabama Press); FAO ECOCROP: Carya illinoinensis.

    Where else pecan grows →

  9. Pistachio

    0Won't grow

    Not enough winter chill

    Ruled out. Not enough winter chill: 9 portions here, ideal at least 58 portions

    Nut · Perennial

    Why this score

    • Winter chill (9 winters in 10)0

      Here: 9 portions · Ideal: at least 58 portions

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least 10°FHere: 4°C · Ideal: at least -12°C

    • Warmest-month average100

      Here: 81°F · Ideal: 79–91°FHere: 27°C · Ideal: 26–33°C

    • Degree days above 50°FDegree days above 10°C100

      Here: 6,975 °F·days · Ideal: at least 4,860 °F·daysHere: 3,875 °C·days · Ideal: at least 2,700 °C·days

    • Frost-free days100

      Here: 365 days · Ideal: at least 210 days

    • Yearly rain100

      Here: 7.9 in · Ideal: 16–24 inHere: 201 mm · Ideal: 400–600 mm · covered by irrigation

    Needs both a real winter chill and a long, hot, dry summer; humidity brings fungal disease.

    Pistacia vera. Sources: Ferguson & Haviland (eds.), Pistachio Production Manual (UC ANR); FAO ECOCROP: Pistacia vera; Steduto, Hsiao, Fereres & Raes 2012, Crop yield response to water (FAO Irrigation and Drainage Paper 66).

    Where else pistachio grows →

  10. Walnut

    0Won't grow

    Not enough winter chill

    Ruled out. Not enough winter chill: 9 portions here, ideal at least 45 portions

    Nut · Perennial

    Why this score

    • Winter chill (9 winters in 10)0

      Here: 9 portions · Ideal: at least 45 portions

    • Coldest night of the year (average)100

      Here: 38°F · Ideal: at least -8°FHere: 4°C · Ideal: at least -22°C

    • Frost-free days100

      Here: 365 days · Ideal: at least 180 days

    • Degree days above 50°FDegree days above 10°C100

      Here: 6,975 °F·days · Ideal: at least 2,700 °F·daysHere: 3,875 °C·days · Ideal: at least 1,500 °C·days

    • Days above 95°FDays above 35°C100

      Here: 1 days · Ideal: at most 75 days

    • Yearly rain100

      Here: 7.9 in · Ideal: 26–47 inHere: 201 mm · Ideal: 650–1,200 mm · covered by irrigation

    Late-leafing varieties (Chandler) dodge spring frost. Very hot days sunburn the nuts.

    Juglans regia. Sources: Luedeling 2012, Climate change impacts on winter chill for temperate fruit and nut production: a review (Scientia Horticulturae); UC ANR: Walnut Production Manual.

    Where else walnut grows →

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How these scores work

Each crop has an ideal range and hard limits for things like winter cold, chill hours, summer heat and rain. A score of 100 means everything is in range; one hard limit crossed means 0. “Ideal” is a 100 with room to spare in every range, “Good fit” is 80 or more and “Marginal” 50–79. Annual crops are scored over their best growing season, which sets the planting month. Rainfed scores count rain only; irrigated scores assume you water when rain falls short. Pages open on irrigated where a year brings under 20 in500 mm of rain.

Climate comes from 1991–2020 monthly averages for the 4 km climate cell around the town. Frost dates, chill and hardiness zones are estimated from those averages by simulating daily weather, so check them against local records. Soil, slope and water rights matter as much as climate. Crop ranges from FAO ECOCROP and university extension guides (cited per crop).

Nearby towns

Climate data: TerraClimate 1991–2020 monthly averages (Abatzoglou, J.T. et al., 2018, Scientific Data 5:170191). Humidity is derived from TerraClimate vapor pressure; “sunshine” is solar radiation.

Places: GeoNames (CC BY 4.0). Map: © OpenStreetMap contributors, tiles by OpenFreeMap.

Grower tools: crop ranges from FAO ECOCROP and university extension guides (cited per crop). Daily weather, frost dates and chill are estimated from the monthly averages; chill portions use the Dynamic Model (Fishman, Erez & Couvillon, 1987), hardiness zones follow the USDA definition.