Kittitas County Climate
Kittitas County, Washington
Avg Annual Temp
46.4°F
Annual Precip
31.4"
Annual Snowfall
—
Extreme Heat Days
16.04
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Kittitas County Weather
A Cooler Continental Influence
With an average annual temperature of 46.4°F, Kittitas County is significantly cooler than the national median. The area experiences more distinct temperature shifts than coastal regions.
Cooler and Drier Than Average
The county's 46.4°F average temperature sits below the Washington state average of 49.9°F. Its 31.4 inches of precipitation also falls short of the 38.5-inch statewide mark.
Contrasting With the Coast
Kittitas sees 16 extreme heat days, far more than the 3 days recorded in neighboring King County. It also receives less than half the rainfall found in the Puget Sound region.
Hot Summers and Cold Winters
January temperatures drop to an average of 29.0°F, while July reaches a warm 65.9°F average. Although annual snowfall data is currently unavailable, the county faces 16 days of extreme heat every year.
Equip for Seasonal Extremes
Residents need reliable heating systems to handle winter averages of 30.2°F. Cooling solutions are also important for the 16 days of extreme heat that occur during the summer months.
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.