Fairfield (NJ) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Fairfield.
Climate overview of Fairfield
Temperatures in Fairfield, New Jersey, United States of America, vary greatly throughout the year. July is the hottest month at 30°C (86°F), while January is the coldest at 4°C (39°F).
The city has a wet climate, receiving around 1274 mm (50 in) of rain/snowfall per year. August is the wettest month. Sunshine peaks in July, when the city sees around 9.0 hours of sunshine per day.
Fairfield Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Fairfield — and find the best time to visit.
Monthly Temperature in Fairfield
The climate in Fairfield is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a very warm 30°C (86°F) in July to a chilly 4°C (39°F) in January.
Nighttime temperatures range from 19°C (66°F) in July to -6°C (21°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Fairfield
Fairfield has a notably wet climate with abundant precipitation, recording 1274 mm (50 in) of rain/snowfall per year. The amount of precipitation varies moderately throughout the year. The wettest month, August, sees around 134 mm (5.3 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, November, still receives a respectable 77 mm (3 in) of rainfall. For more details, please visit our Fairfield 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 Fairfield
In Fairfield, summer days are longer and more sunny, with daily sunshine hours peaking at 9.0 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.7 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Fairfield by Month
The relative humidity is high throughout the year in Fairfield.
The city experiences its highest humidity in September, reaching 68%. In April, the humidity drops to its lowest level at 55%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Fairfield
Frequently asked questions about the climate in Fairfield
What is the best time to visit Fairfield?
September typically offers the most optimal weather in Fairfield. In contrast, January, February, March and December tend to have less optimal conditions.
What temperatures can I expect in Fairfield?
Daytime highs range from 4°C (39°F) in January to 30°C (86°F) in July. Nighttime lows range from -6°C (21°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Fairfield get?
Annual rainfall is around 1274 mm (50 in). August is the wettest month with 134 mm (5.3 in), while November is the driest with 77 mm (3 in).
How sunny is Fairfield?
Fairfield receives around 2,544 hours of sunshine per year. July is the sunniest month with 271 hours, while December is the cloudiest with just 141 hours. Overall, Fairfield enjoys abundant sunshine.
Fairfield 3-Day Forecast
Fairfield (NJ) 3-Day Forecast
Fairfield on the map
Fairfield is highlighted — select any city to see its climate.
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