Nassau County weather, town by town
5 places in Nassau County, Florida, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
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Measured at the NOAA stations serving these towns, daily records 1892 to 2026. Station extremes, not official state records.
Nassau County Weather Facts
Nassau County has 5 places on myweatherrock (2 towns, 2 census-designated places, 1 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 106°F at Folkston 9 Sw on July 28, 1996. The coldest night is 4°F at Fernandina Beach on January 21, 1985. The wettest day brought 12.4 inches of rain at Fernandina Beach on September 22, 1897. The biggest single-day snow measured 1.5 inches at Jacksonville on February 13, 1958. Those are station measurements from NOAA's daily records, 1892 to 2026, not official state records. By area the largest place is Yulee, about 23 square miles.
About Nassau County weather
The map on the Now tab shows every Nassau 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 5 Nassau County towns with station normals, the warmest month is July, when the day usually reaches 92°F, and the coldest is January, when the night usually falls to 43°F. August is the wettest, with rain on about 14 days. July afternoons run from about 90°F in Fernandina Beach to 94°F in Hilliard. January nights run from about 42°F in Callahan to 45°F in Fernandina Beach.
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.
Nassau County weather records
Measured at the NOAA stations serving these towns, daily records 1892 to 2026. Station extremes, not official state records.
Common questions about Nassau County weather
- What is the hottest temperature recorded at a Nassau County station?
- 106°F at Folkston 9 Sw on July 28, 1996, in the NOAA daily station records myweatherrock holds (1892 to 2026).
- What is the coldest temperature recorded at a Nassau County station?
- 4°F at Fernandina Beach on January 21, 1985.
- What is the most rain a Nassau County station has measured in one day?
- 12.4 inches at Fernandina Beach on September 22, 1897.
- What is the biggest one-day snowfall at a Nassau County station?
- 1.5 inches at Jacksonville on February 13, 1958.
- How many Nassau County towns have a weather page here?
- 5: 2 towns, 2 census-designated places, 1 cities. 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 Nassau 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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