Miami County weather, town by town
15 places in Miami 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 1946 to 2026. Station extremes, not official state records.
Miami County Weather Facts
Miami County has 15 places on myweatherrock (9 villages, 5 cities, 1 census-designated places), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 103°F at Piqua Wwtp on June 28, 2012. The coldest night is -25°F at Dayton Intl Ap on January 18, 1994. The wettest day brought 7.86 inches of rain at Piqua on August 8, 1995. The biggest single-day snow measured 12.99 inches at New Carlisle on November 26, 1950. Those are station measurements from NOAA's daily records, 1946 to 2026, not official state records. By area the largest place is Piqua, about 13 square miles.
About Miami County weather
The map on the Now tab shows every Miami 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 14 Miami 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 14 days.
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.
Miami County weather records
Measured at the NOAA stations serving these towns, daily records 1946 to 2026. Station extremes, not official state records.
Common questions about Miami County weather
- What is the hottest temperature recorded at a Miami County station?
- 103°F at Piqua Wwtp on June 28, 2012, in the NOAA daily station records myweatherrock holds (1946 to 2026).
- What is the coldest temperature recorded at a Miami County station?
- -25°F at Dayton Intl Ap on January 18, 1994.
- What is the most rain a Miami County station has measured in one day?
- 7.86 inches at Piqua on August 8, 1995.
- What is the biggest one-day snowfall at a Miami County station?
- 12.99 inches at New Carlisle on November 26, 1950.
- How many Miami County towns have a weather page here?
- 15: 9 villages, 5 cities, 1 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 Miami 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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