Farmington (CT) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Farmington.
Climate overview of Farmington
Farmington, Connecticut, United States of America, sees big temperature differences between seasons, with July peaking at 29°C (84°F) and January dropping to 2°C (36°F).
Rain/snowfall is high, totalling around 1307 mm (51 in) per year. June is the wettest month and November the driest. The city also experiences warm summers and cold winters. The sunniest month is July, with 9.8 hours of sunshine per day on average.
Farmington Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Farmington - and find the best time to visit.
Monthly Temperature in Farmington
Visitors to Farmington 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 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 -8°C (18°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Farmington
Farmington is known for its substantial rain/snowfall, with annual precipitation reaching 1307 mm (51 in). While rainfall varies throughout the year, each season offers its own charm. June brings wetter days averaging 144 mm (5.7 in) of precipitation, spread over 14 rainy days.
In contrast, the driest month November experiences a drier climate, with about 86 mm (3.4 in) of rainfall spread across 9 rainy days. For more details, please visit our Farmington 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 Farmington
Seasonal changes in sunshine hours are quite dramatic in Farmington. 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 Farmington by Month
The relative humidity is high throughout the year in Farmington.
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 Farmington
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: September
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: February, March, September and November
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -8°C (18°F).
Frequently asked questions about the climate in Farmington
What is the best time to visit Farmington?
September typically offers the most optimal weather in Farmington. In contrast, January, February, March and December tend to have less optimal conditions. Farmington has warm summers and cold winters.
What temperatures can I expect in Farmington?
Daytime highs range from 2°C (36°F) in January to 29°C (84°F) in July. Nighttime lows range from -8°C (18°F) to 18°C (64°F). Temperatures vary considerably through the year.
How much rain does Farmington get?
Annual rainfall is around 1307 mm (51 in). June is the wettest month with 144 mm (5.7 in), while November is the driest with 86 mm (3.4 in).
How sunny is Farmington?
Farmington 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, Farmington enjoys abundant sunshine.
Farmington 3-Day Forecast
Farmington on the map
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