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Windsor (CT) Climate by Month

The temperature in Windsor can vary greatly throughout the year. The temperatures shift from warm to cold. It also has a notably wet climate with much precipitation. Now, let’s break down all the climate details for a clearer picture.

Average day and night temperature

Depending on the time of the year, temperatures range from comfortable to chilly in Windsor. Average daytime temperatures range from a comfortable 30°C in July, the warmest time of the year, to a chilly 2°C during cooler months like January. At night, temperatures typically average around -7°C during these months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Windsor has a relatively rain/snowy climate with high precipitation levels, averaging 1277 mm of rain/snowfall annually. While rainfall varies throughout the year, each season offers its own charm. June brings wetter days averaging 147 mm of precipitation, spread over 15 rainy days. In contrast, January experiences a drier climate, with about 84 mm of snow/rainfall spread across 11 snowy/rainy days.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

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.

Monthly hours of sunshine

Data from: Hartford, the United States of America (10 KM, 6 Miles).

Daily hours of sunshine

Data from: Hartford, the United States of America (10 KM, 6 Miles).

The best time of year to visit Windsor in the United States of America

During the months of May and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is summer in Windsor?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in Windsor?
    July has an average maximum temperature of 30°C and is the warmest month of the year.
  • Which is the coldest month in Windsor?
    The coldest month is January with an average maximum temperature of 2°C.
  • Which is the wettest month in Windsor?
    June tops the wettest month list with 147 mm of rainfall.
  • Which is the driest month in Windsor?
    January is the driest month with 84 mm of precipitation.
  • Which is the sunniest month in Windsor?
    July is the sunniest month with an average of 293 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Windsor (CT)

    Thu   Nov 21
    9°C | 6°C
    N 14 km/h
    26 mm
    broken clouds and rain

    broken clouds and rain

    Fri   Nov 22
    9°C | 4°C
    S 22 km/h
    18 mm
    overcast and rain

    overcast and rain

    Sat   Nov 23
    9°C | 3°C
    NW 22 km/h
    0.6 mm
    overcast and rain

    overcast and rain