Mariposa County weather, town by town
16 places in Mariposa 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 1905 to 2026. Station extremes, not official state records.
Mariposa County Weather Facts
Mariposa County has 16 places on myweatherrock (16 census-designated places), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 110°F at Exchequer Dam on August 17, 2020. The coldest night is -13°F at Yosemite Park Hq on January 6, 2024. The wettest day brought 10.8 inches of rain at So Entrance Yosemite Np on January 31, 1963. The biggest single-day snow measured 60 inches at So Entrance Yosemite Np on March 9, 2023. Those are station measurements from NOAA's daily records, 1905 to 2026, not official state records. By area the largest place is Greeley Hill, about 24 square miles.
About Mariposa County weather
The map on the Now tab shows every Mariposa 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 16 Mariposa County towns with station normals, the warmest month is August, when the day usually reaches 90°F, and the coldest is December, when the night usually falls to 32°F. March is the wettest, with rain on about 10 days. August afternoons run from about 80°F in Bootjack to 98°F in Catheys Valley. December nights run from about 26°F in Bootjack to 45°F in Catheys Valley.
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.
Mariposa County weather records
Measured at the NOAA stations serving these towns, daily records 1905 to 2026. Station extremes, not official state records.
Common questions about Mariposa County weather
- What is the hottest temperature recorded at a Mariposa County station?
- 110°F at Exchequer Dam on August 17, 2020, in the NOAA daily station records myweatherrock holds (1905 to 2026).
- What is the coldest temperature recorded at a Mariposa County station?
- -13°F at Yosemite Park Hq on January 6, 2024.
- What is the most rain a Mariposa County station has measured in one day?
- 10.8 inches at So Entrance Yosemite Np on January 31, 1963.
- What is the biggest one-day snowfall at a Mariposa County station?
- 60 inches at So Entrance Yosemite Np on March 9, 2023.
- How many Mariposa County towns have a weather page here?
- 16: 16 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 Mariposa 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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