Windsor, Connecticut Climate by Month
Windsor, Connecticut, United States
Warm summers and cold winters, with rain spread through the year.
Warm summers and cold winters, with rain spread through the year: that's Windsor's climate in short. Expect highs of 85°F (29°C) in July and 37°F (3°C) in January, with the coldest nights (January) near 19°F (-7°C). About 44 in (1120 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 85°F(29°C)
- Average high, July
- Coldest nights
- 19°F(-7°C)
- Average low, January
- Rain per year
- 44 in(1120 mm)
- No clear rainy season
- Humidity
- 69%
- Sunniest: July
Best and worst months in Windsor
Best for weatherMay and September are the best time for weather in Windsor: highs near 74°F (23°C) and about 3.8 in (97 mm) of rain a month.
Least pleasantJanuary is the least pleasant month: it's the coldest, with highs of only 37°F (3°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)
Windsor weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 37°F(3°C) | 19°F(-7°C) | 3.3 in(83 mm) | 79% | 1.7 |
| FebFebruary | 39°F(4°C) | 20°F(-7°C) | 3.1 in(78 mm) | 73% | 2.6 |
| MarMarch | 47°F(9°C) | 28°F(-2°C) | 3.8 in(97 mm) | 65% | 3.5 |
| AprApril | 60°F(15°C) | 38°F(3°C) | 3.7 in(94 mm) | 60% | 4.5 |
| MayMayBest | 71°F(22°C) | 47°F(9°C) | 3.6 in(92 mm) | 64% | 5.2 |
| JunJune | 80°F(27°C) | 57°F(14°C) | 4.1 in(104 mm) | 68% | 5.6 |
| JulJuly | 85°F(29°C) | 63°F(17°C) | 3.6 in(91 mm) | 67% | 5.8 |
| AugAugust | 83°F(29°C) | 61°F(16°C) | 3.3 in(85 mm) | 70% | 5.1 |
| SepSeptemberBest | 76°F(25°C) | 54°F(12°C) | 4.0 in(102 mm) | 71% | 4.0 |
| OctOctober | 64°F(18°C) | 42°F(6°C) | 4.1 in(103 mm) | 72% | 2.7 |
| NovNovember | 53°F(12°C) | 33°F(1°C) | 3.4 in(87 mm) | 63% | 1.8 |
| DecDecember | 42°F(6°C) | 25°F(-4°C) | 4.1 in(104 mm) | 78% | 1.4 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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