Windsor Locks (CT) Weather & Climate: Best Time to Visit

In Windsor Locks, temperatures differ significantly between summer and winter months. 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 18°C (64°F) in July to around -7°C (19°F) during January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Windsor Locks experiences significant rain/snowfall throughout the year, averaging 1303 mm (51 in) of precipitation annually. While rainfall varies throughout the year, each season offers its own charm. June brings wetter days averaging 156 mm (6.1 in) of precipitation, spread over 16 rainy days.

In contrast, the driest month November experiences a drier climate, with about 85 mm (3.3 in) of rainfall spread across 9 rainy days. For more details, please visit our Windsor Locks Precipitation page.

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

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in Windsor Locks. 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

The relative humidity is high throughout the year in Windsor Locks.

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