Tooele County Climate
Tooele County, Utah
Avg Annual Temp
50.8°F
Annual Precip
10.4"
Annual Snowfall
43.0"
Extreme Heat Days
62.587500000000006
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Tooele County Weather
Arid Great Basin Basin Life
Tooele County’s annual average of 50.8°F is slightly cooler than the national median but representative of the Great Basin. Its climate is defined by wide open salt flats and arid valleys.
Hotter and Drier Than Utah
Tooele is warmer than the Utah state average of 48.9°F. However, it is much drier, receiving only 10.4 inches of precipitation compared to the state’s 13.7 inches.
Hottest Summers in the Region
Tooele is significantly hotter than neighboring Salt Lake County, recording 63 days of extreme heat compared to Salt Lake's 40. It is also much drier, with less than half the annual snowfall of its eastern neighbor.
Intense Heat and Dry Winters
Summer is the dominant season here, featuring 63 days with temperatures at or above 90°F. Winters are relatively mild for the region, with 43 inches of snow and a January average of 28.4°F.
Cooling and Dust Control
Air conditioning and heat-safety planning are essential to manage the 63 days of extreme heat. Residents should also focus on dust control and low-water landscaping to accommodate the arid 10.4-inch annual rainfall.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.