Windsor, California Climate by Month
Windsor, California, United States
Warm summers and cool winters, with most rain from December to March.
Windsor has warm summers and cool winters, with most rain from December to March. July is the warmest month, with highs around 86°F (30°C); January is the coolest at 58°F (15°C), and nights dip to 38°F (3°C). It gets 38 in (959 mm) of rain a year, 74% of it from December to March. June to September are almost completely dry.
- Warmest month
- 86°F(30°C)
- Average high, July
- Coldest nights
- 38°F(3°C)
- Average low, December
- Rain per year
- 38 in(959 mm)
- Wettest: January
- Humidity
- 66%
- Sunniest: July
Best and worst months in Windsor
Best for weatherMay is the best time for weather in Windsor: highs near 76°F (25°C) and about 1.3 in (32 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; January is the coldest, with highs of only 58°F (15°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 May.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Windsor weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 58°F(15°C) | 39°F(4°C) | 7.6 in(193 mm) | 86% | 1.8 |
| FebFebruary | 63°F(17°C) | 40°F(5°C) | 7.6 in(192 mm) | 77% | 2.6 |
| MarMarch | 66°F(19°C) | 42°F(6°C) | 5.5 in(139 mm) | 70% | 4.1 |
| AprApril | 70°F(21°C) | 44°F(7°C) | 2.2 in(56 mm) | 69% | 5.3 |
| MayMayBest | 76°F(25°C) | 48°F(9°C) | 1.3 in(32 mm) | 63% | 6.3 |
| JunJune | 83°F(28°C) | 52°F(11°C) | 0.4 in(9 mm) | 57% | 7.3 |
| JulJuly | 86°F(30°C) | 53°F(12°C) | 0.0 in(1 mm) | 57% | 7.3 |
| AugAugust | 86°F(30°C) | 53°F(12°C) | 0.0 in(1 mm) | 57% | 6.5 |
| SepSeptember | 85°F(29°C) | 51°F(11°C) | 0.2 in(5 mm) | 56% | 5.4 |
| OctOctober | 79°F(26°C) | 47°F(8°C) | 1.8 in(46 mm) | 57% | 3.7 |
| NovNovember | 67°F(19°C) | 41°F(5°C) | 3.9 in(99 mm) | 70% | 2.4 |
| DecDecember | 59°F(15°C) | 38°F(3°C) | 7.3 in(186 mm) | 78% | 1.6 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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