Pima County weather, town by town
55 places in Pima County, Arizona, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
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Not your town? Type it above, or pick it below.
Measured at the NOAA stations serving these towns, daily records 1914 to 2026. Station extremes, not official state records.
Pima County Weather Facts
Pima County has 55 places on myweatherrock (50 census-designated places, 3 towns, 2 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 120°F at Ajo on August 7, 2025. The coldest night is -7°F at Mt Lemmon Fire Dept on February 2, 1985. The wettest day brought 6.5 inches of rain at Kitt Peak on December 14, 2011. The biggest single-day snow measured 27.01 inches at Mt Lemmon Fire Dept on February 22, 2019. Those are station measurements from NOAA's daily records, 1914 to 2026, not official state records. By area the largest place is Tucson, about 242 square miles.
About Pima County weather
The map on the Now tab shows every Pima 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 40 Pima County towns with station normals, the warmest month is June, when the day usually reaches 93°F, and the coldest is December, when the night usually falls to 37°F. August is the wettest, with rain on about 9 days. June afternoons run from about 74°F in Catalina to 102°F in Ali Chuk. December nights run from about 27°F in J-Six Ranchettes to 45°F in Ajo.
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.
Pima County weather records
Measured at the NOAA stations serving these towns, daily records 1914 to 2026. Station extremes, not official state records.
Common questions about Pima County weather
- What is the hottest temperature recorded at a Pima County station?
- 120°F at Ajo on August 7, 2025, in the NOAA daily station records myweatherrock holds (1914 to 2026).
- What is the coldest temperature recorded at a Pima County station?
- -7°F at Mt Lemmon Fire Dept on February 2, 1985.
- What is the most rain a Pima County station has measured in one day?
- 6.5 inches at Kitt Peak on December 14, 2011.
- What is the biggest one-day snowfall at a Pima County station?
- 27.01 inches at Mt Lemmon Fire Dept on February 22, 2019.
- How many Pima County towns have a weather page here?
- 55: 50 census-designated places, 3 towns, 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 Pima 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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