Yakima County Climate
Yakima County, Washington
Avg Annual Temp
50.9°F
Annual Precip
8.1"
Annual Snowfall
16.9"
Extreme Heat Days
38.883333333333326
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Yakima County Weather
Yakima’s High Desert Climate Profile
Yakima County averages 50.9°F annually, which is slightly below the national median of 53°F. It is one of the driest regions in the country, characterized by low precipitation and high sun.
Warmer and Drier than Washington
The county is warmer than the 49.9°F state average but far drier than the 38.5-inch state precipitation average. It receives only 8.1 inches of rain per year, creating a desert-like environment.
The Driest County in the Region
Yakima's 8.1 inches of rain is remarkably lower than Walla Walla’s 15.8 inches. Despite the aridity, it still manages 16.9 inches of annual snow, more than its neighbors to the south.
Toasty Summers and Crisp Winters
July averages a warm 72.4°F, and the county faces 39 days of extreme heat above 90°F. Winters are cold and dry, with a December-February average of 32.7°F.
Manage Water and Extreme Heat
Drought-resistant landscaping is a must given the low 8.1 inches of annual rainfall. High-efficiency cooling is also essential to navigate the nearly 40 days of extreme summer heat.
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.