Southbury (CT) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Southbury.
Climate overview of Southbury
Southbury, Connecticut, United States of America, sees big temperature differences between seasons, with July peaking at 28°C (82°F) and January dropping to 3°C (37°F).
Rain/snowfall is high, totalling around 1276 mm (50 in) per year. June is the wettest month and November the driest. The most sunshine falls in July, with an average of 9.8 hours of daily sunshine.
Southbury Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Southbury — and find the best time to visit.
Monthly Temperature in Southbury
Visitors to Southbury can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 28°C (82°F) in July, the warmest time of the year, to a chilly 3°C (37°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
Rainfall in Southbury
Southbury is known for its substantial rain/snowfall, with annual precipitation reaching 1276 mm (50 in). Year-round, Southbury has a balanced climate with minimal variation in precipitation. The difference between the wettest month, June, with 135 mm (5.3 in), and the driest month, November, with 84 mm (3.3 in), is minimal. For more details, please visit our Southbury 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 Southbury
Seasonal changes in sunshine hours are quite dramatic in Southbury. 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 Southbury by Month
The relative humidity is high throughout the year in Southbury.
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 Southbury
The weather does bring rainfall during this period, between 84 mm (3.3 in) and 135 mm (5.3 in). Need help choosing your next travel destination? We offer a specialized tool that matches you with locations based on your weather preferences. Explore destinations that suit your climate preferences.
Frequently asked questions about the climate in Southbury
What is the best time to visit Southbury?
September typically offers the most optimal weather in Southbury. In contrast, January, February, March and December tend to have less optimal conditions.
What temperatures can I expect in Southbury?
Daytime highs range from 3°C (37°F) in January to 28°C (82°F) in July. Nighttime lows range from -7°C (19°F) to 18°C (64°F). Temperatures vary considerably through the year.
How much rain does Southbury get?
Annual rainfall is around 1276 mm (50 in). June is the wettest month with 135 mm (5.3 in), while November is the driest with 84 mm (3.3 in).
How sunny is Southbury?
Southbury 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, Southbury enjoys abundant sunshine.
Southbury 3-Day Forecast
Southbury (CT) 3-Day Forecast
Southbury on the map
Southbury is highlighted — select any city to see its climate.
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