Sussex County weather, town by town
27 places in Sussex County, Delaware, 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 1945 to 2026. Station extremes, not official state records.
Sussex County Weather Facts
Sussex County has 27 places on myweatherrock (21 towns, 4 cities, 2 census-designated places), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 104°F at Georgetown-Delaware Coastal Ap on July 22, 2011. The coldest night is -11°F at Lewes on January 17, 1982. The wettest day brought 8.01 inches of rain at Salisbury-Wicomico Rgnl Ap on September 1, 2002. The biggest single-day snow measured 25 inches at Dover on February 19, 1979. Those are station measurements from NOAA's daily records, 1945 to 2026, not official state records. By area the largest place is Milford, about 10 square miles.
About Sussex County weather
The map on the Now tab shows every Sussex 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 27 Sussex County towns with station normals, the warmest month is July, when the day usually reaches 87°F, and the coldest is January, when the night usually falls to 29°F. June is the wettest, with rain on about 11 days. July afternoons run from about 84°F in Bethany Beach to 88°F in Bethel. January nights run from about 27°F in Delmar to 31°F in Dewey 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.
Sussex County weather records
Measured at the NOAA stations serving these towns, daily records 1945 to 2026. Station extremes, not official state records.
Common questions about Sussex County weather
- What is the hottest temperature recorded at a Sussex County station?
- 104°F at Georgetown-Delaware Coastal Ap on July 22, 2011, in the NOAA daily station records myweatherrock holds (1945 to 2026).
- What is the coldest temperature recorded at a Sussex County station?
- -11°F at Lewes on January 17, 1982.
- What is the most rain a Sussex County station has measured in one day?
- 8.01 inches at Salisbury-Wicomico Rgnl Ap on September 1, 2002.
- What is the biggest one-day snowfall at a Sussex County station?
- 25 inches at Dover on February 19, 1979.
- How many Sussex County towns have a weather page here?
- 27: 21 towns, 4 cities, 2 census-designated places. 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 Sussex 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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