Fairfield County weather, town by town
90 places in Fairfield County, Connecticut, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
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Fairfield County Weather Facts
Fairfield County has 90 places on myweatherrock (67 census-designated places, 23 towns), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 106°F at Danbury on July 15, 1995. The coldest night is -18°F at Danbury on January 27, 1994. The wettest day brought 9.66 inches of rain at Danbury Muni Ap on September 16, 1999. The biggest single-day snow measured 35.98 inches at Ansonia 1 Nw on February 9, 2013. Those are station measurements from NOAA's daily records, 1937 to 2026, not official state records. By area the largest place is Newtown, about 58 square miles.
About Fairfield County weather
The map on the Now tab shows every Fairfield County town's current temperature from our own server, one dot per town. Tap any dot, or type a town above, for that town's full forecast.
What the weather is usually like
Across the 90 Fairfield County towns with station normals, the warmest month is July, when the day usually reaches 84°F, and the coldest is January, when the night usually falls to 21°F. May is the wettest, with rain on about 13 days. July afternoons run from about 79°F in Lakeside Woods to 86°F in Bethel. January nights run from about 17°F in Lakeside Woods to 25°F in Norwalk.
Means of the 1991 to 2020 station normals serving these towns, as published by NOAA; each town's page carries its own.
Where these numbers come from
- Current conditions and forecast: NOAA forecast grids decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
- Records: computed by myweatherrock from NOAA GHCN-Daily station records at the stations serving these towns. Measurements, not estimates.
- Warnings and alerts: the National Weather Service, passed through unchanged.
Fairfield County weather records
Measured at the NOAA stations serving these towns, daily records 1937 to 2026. Station extremes, not official records.
Common questions about Fairfield County weather
- What is the hottest temperature recorded at a Fairfield County station?
- 106°F at Danbury on July 15, 1995, in the NOAA daily station records myweatherrock holds (1937 to 2026).
- What is the coldest temperature recorded at a Fairfield County station?
- -18°F at Danbury on January 27, 1994.
- What is the most rain a Fairfield County station has measured in one day?
- 9.66 inches at Danbury Muni Ap on September 16, 1999.
- What is the biggest one-day snowfall at a Fairfield County station?
- 35.98 inches at Ansonia 1 Nw on February 9, 2013.
- How many Fairfield County towns have a weather page here?
- 90: 67 census-designated places, 23 towns. Each page carries current conditions, the hourly timeline, the ten day outlook, radar, and where a station sits close enough, measured records.
- Where does the Fairfield County forecast come from?
- NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
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