Rocky Hill (CT) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Rocky Hill.
Climate overview of Rocky Hill
Rocky Hill, Connecticut, United States of America, sees big temperature differences between seasons, with July peaking at 29°C (84°F) and January dropping to 3°C (37°F).
Rain/snowfall is high, totalling around 1256 mm (49 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.
Rocky Hill Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Rocky Hill — and find the best time to visit.
Monthly Temperature in Rocky Hill
Visitors to Rocky Hill can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 29°C (84°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 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 Rocky Hill
Rocky Hill is known for its substantial rain/snowfall, with annual precipitation reaching 1256 mm (49 in). While rainfall varies throughout the year, each season offers its own charm. June brings wetter days averaging 151 mm (5.9 in) of precipitation, spread over 14 rainy days.
In contrast, the driest month January experiences a drier climate, with about 86 mm (3.4 in) of snow/rainfall spread across 11 snowy/rainy days. For more details, please visit our Rocky Hill 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 Rocky Hill
Seasonal changes in sunshine hours are quite dramatic in Rocky Hill. 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 Rocky Hill by Month
The relative humidity is high throughout the year in Rocky Hill.
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 Rocky Hill
The weather does bring rainfall during this period, between 87 mm (3.4 in) and 106 mm (4.2 in). 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 Rocky Hill
What is the best time to visit Rocky Hill?
May and September typically offer the most optimal weather in Rocky Hill. In contrast, January, February, March and December tend to have less optimal conditions.
What temperatures can I expect in Rocky Hill?
Daytime highs range from 3°C (37°F) in January to 29°C (84°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 Rocky Hill get?
Annual rainfall is around 1256 mm (49 in). June is the wettest month with 151 mm (5.9 in), while January is the driest with 86 mm (3.4 in).
How sunny is Rocky Hill?
Rocky Hill 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, Rocky Hill enjoys abundant sunshine.
Rocky Hill 3-Day Forecast
Rocky Hill (CT) 3-Day Forecast
Rocky Hill on the map
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