Clermont County weather, town by town
21 places in Clermont County, Ohio, 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 1896 to 2026. Station extremes, not official state records.
Clermont County Weather Facts
Clermont County has 21 places on myweatherrock (10 census-designated places, 9 villages, 2 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 108°F at Maysville Wwtp on July 22, 1901. The coldest night is -25°F at Maysville Wwtp on January 19, 1994. The wettest day brought 7.2 inches of rain at Chilo Meldahl Locks and Dam on March 2, 1997. The biggest single-day snow measured 15.98 inches at Maysville Wwtp on January 17, 1994. Those are station measurements from NOAA's daily records, 1896 to 2026, not official state records. By area the largest place is Amelia, about 6 square miles.
About Clermont County weather
The map on the Now tab shows every Clermont 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 21 Clermont County towns with station normals, the warmest month is July, when the day usually reaches 86°F, and the coldest is January, when the night usually falls to 24°F. May is the wettest, with rain on about 14 days. July afternoons run from about 84°F in Marathon to 87°F in Chilo. January nights run from about 21°F in Marathon to 24°F in Amelia.
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.
Clermont County weather records
Measured at the NOAA stations serving these towns, daily records 1896 to 2026. Station extremes, not official state records.
Common questions about Clermont County weather
- What is the hottest temperature recorded at a Clermont County station?
- 108°F at Maysville Wwtp on July 22, 1901, in the NOAA daily station records myweatherrock holds (1896 to 2026).
- What is the coldest temperature recorded at a Clermont County station?
- -25°F at Maysville Wwtp on January 19, 1994.
- What is the most rain a Clermont County station has measured in one day?
- 7.2 inches at Chilo Meldahl Locks and Dam on March 2, 1997.
- What is the biggest one-day snowfall at a Clermont County station?
- 15.98 inches at Maysville Wwtp on January 17, 1994.
- How many Clermont County towns have a weather page here?
- 21: 10 census-designated places, 9 villages, 2 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 Clermont 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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