Spokane Climate by Month
Spokane, Washington, United States
Warm summers and freezing winters, with rain spread through the year.
The climate in Spokane is one of warm summers and freezing winters, with rain spread through the year. Expect highs of 85°F (30°C) in July and 36°F (2°C) in December, with the coldest nights (December) near 26°F (-3°C). About 17 in (438 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 85°F(30°C)
- Average high, July
- Coldest nights
- 26°F(-3°C)
- Average low, December
- Rain per year
- 17 in(438 mm)
- No clear rainy season
- Humidity
- 65%
- Sunniest: July
Best and worst months in Spokane
Best for weatherThe most comfortable weather comes in June and September, with highs around 75°F (24°C) and about 0.9 in (24 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; December is the coldest, with highs of only 36°F (2°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in September.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Spokane weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 37°F(3°C) | 26°F(-3°C) | 2.1 in(54 mm) | 84% | 1.0 |
| FebFebruary | 42°F(5°C) | 27°F(-3°C) | 1.4 in(35 mm) | 75% | 2.2 |
| MarMarch | 50°F(10°C) | 31°F(0°C) | 1.6 in(41 mm) | 70% | 3.3 |
| AprApril | 58°F(15°C) | 36°F(2°C) | 1.5 in(37 mm) | 63% | 4.6 |
| MayMay | 68°F(20°C) | 44°F(7°C) | 1.6 in(41 mm) | 59% | 5.9 |
| JunJuneBest | 76°F(24°C) | 50°F(10°C) | 1.3 in(32 mm) | 51% | 6.3 |
| JulJuly | 85°F(30°C) | 55°F(13°C) | 0.5 in(13 mm) | 43% | 7.1 |
| AugAugust | 85°F(29°C) | 54°F(12°C) | 0.5 in(12 mm) | 41% | 6.1 |
| SepSeptemberBest | 74°F(23°C) | 46°F(8°C) | 0.6 in(16 mm) | 51% | 4.3 |
| OctOctober | 59°F(15°C) | 36°F(2°C) | 1.5 in(37 mm) | 71% | 2.5 |
| NovNovember | 44°F(7°C) | 30°F(-1°C) | 2.3 in(58 mm) | 80% | 1.2 |
| DecDecember | 36°F(2°C) | 26°F(-3°C) | 2.4 in(62 mm) | 86% | 0.8 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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