Windsor (CT) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Windsor.
Climate overview of Windsor
Windsor, Connecticut, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 30°C (86°F) in July, while winters cool to 2°C (36°F) in January.
Rain/snowfall is high, totalling around 1277 mm (50 in) per year. June is the wettest month and January the driest. The sunniest month is July, with 9.8 hours of sunshine per day on average.
Windsor Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Windsor — and find the best time to visit.
Monthly Temperature in Windsor
Depending on the time of the year, temperatures range from comfortable to chilly in Windsor. Average maximum daytime temperatures range from a comfortable 30°C (86°F) in July, the warmest time of the year, to a chilly 2°C (36°F) during cooler months like January.
At night, you can expect temperatures ranging from 19°C (66°F) in July to around -7°C (19°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Windsor
Windsor has a relatively rain/snowy climate with high precipitation levels, averaging 1277 mm (50 in) of rain/snowfall annually. While rainfall varies throughout the year, each season offers its own charm. June brings wetter days averaging 147 mm (5.8 in) of precipitation, spread over 15 rainy days.
In contrast, the driest month January experiences a drier climate, with about 84 mm (3.3 in) of snow/rainfall spread across 11 snowy/rainy days. For more details, please visit our Windsor Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Windsor
Seasonal changes in sunshine hours are quite dramatic in Windsor. While July receives considerable daily sunshine with up to 9.8 hours, November marks the darkest time of the year, where sunshine is scarce with only 4.6 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Windsor by Month
The relative humidity is high throughout the year in Windsor.
The city experiences its highest humidity in September, reaching 72%. In April, the humidity drops to its lowest level at 58%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Windsor
Rainfall during this time ranges from 96 mm (3.8 in) in September to 147 mm (5.8 in) in June. This means you can expect a mix of sunny days and occasional showers. Seeking the perfect travel destination for this year? We've created a tool that suggests locations matching your desired weather. Let our weather planner guide your travel decisions.
Frequently asked questions about the climate in Windsor
What is the best time to visit Windsor?
September typically offers the most optimal weather in Windsor. In contrast, January, February, March and December tend to have less optimal conditions.
What temperatures can I expect in Windsor?
Daytime highs range from 2°C (36°F) in January to 30°C (86°F) in July. Nighttime lows range from -7°C (19°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Windsor get?
Annual rainfall is around 1277 mm (50 in). June is the wettest month with 147 mm (5.8 in), while January is the driest with 84 mm (3.3 in).
How sunny is Windsor?
Windsor receives around 2,579 hours of sunshine per year. July is the sunniest month with 293 hours, while November is the cloudiest with just 139 hours. Overall, Windsor enjoys abundant sunshine.
Windsor 3-Day Forecast
Windsor (CT) 3-Day Forecast
Windsor on the map
Windsor is highlighted — select any city to see its climate.
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