Tooele, UT Climate

Climate Insight: Tooele, UT

The NOAA 1991–2020 climate normals describe Tooele, Utah as a location with an annual average temperature of 52°F, ranging from a mean daily high of 64°F to a mean daily low of 40°F. July is typically the warmest month of the year, while December is the coldest. These thirty-year averages, computed from station USC00428771, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.

Tooele averages 18.4 inches of precipitation a year, with 75.3 inches typically falling as snow, and that matters as much to daily life here as temperature does. The frost-free season averages 167 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 2 and the first fall freeze near October 16. As for energy demand, 5,791 heating degree days and 1,087 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Tooele scores 44/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above are the practical planning tool: mild highs and lows land in the shoulder seasons, July-driven heat peaks in summer, and December-driven cold sets in over deep winter. These are thirty-year averages, not a forecast - any single year can run warmer, wetter, drier, or cooler than the normal.