Tuolumne County weather, town by town
17 places in Tuolumne County, California, 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 1903 to 2026. Station extremes, not official state records.
Tuolumne County Weather Facts
Tuolumne County has 17 places on myweatherrock (16 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 114°F at New Melones Dam Hq on July 24, 2006. The coldest night is -3°F at Cherry Valley Dam on December 9, 1972. The wettest day brought 10.07 inches of rain at Cherry Valley Dam on February 1, 1963. The biggest single-day snow measured 32.01 inches at Cherry Valley Dam on February 20, 2026. Those are station measurements from NOAA's daily records, 1903 to 2026, not official state records. By area the largest place is Pine Mountain Lake, about 19 square miles.
About Tuolumne County weather
The map on the Now tab shows every Tuolumne 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 17 Tuolumne County towns with station normals, the warmest month is July, when the day usually reaches 93°F, and the coldest is December, when the night usually falls to 32°F. January is the wettest, with rain on about 10 days. July afternoons run from about 88°F in Long Barn to 97°F in Columbia. December nights run from about 30°F in Groveland to 38°F in Columbia.
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.
Tuolumne County weather records
Measured at the NOAA stations serving these towns, daily records 1903 to 2026. Station extremes, not official state records.
Common questions about Tuolumne County weather
- What is the hottest temperature recorded at a Tuolumne County station?
- 114°F at New Melones Dam Hq on July 24, 2006, in the NOAA daily station records myweatherrock holds (1903 to 2026).
- What is the coldest temperature recorded at a Tuolumne County station?
- -3°F at Cherry Valley Dam on December 9, 1972.
- What is the most rain a Tuolumne County station has measured in one day?
- 10.07 inches at Cherry Valley Dam on February 1, 1963.
- What is the biggest one-day snowfall at a Tuolumne County station?
- 32.01 inches at Cherry Valley Dam on February 20, 2026.
- How many Tuolumne County towns have a weather page here?
- 17: 16 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 Tuolumne 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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