Okanogan County Climate
Okanogan County, Washington
Avg Annual Temp
48.1°F
Annual Precip
16.6"
Annual Snowfall
91.3"
Extreme Heat Days
31.339999999999996
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Okanogan County Weather
A Land of Cold Extremes
Okanogan County's 48.1°F average temperature is below the national median. It experiences some of the most dramatic seasonal shifts in the Pacific Northwest.
Washington's Snow and Heat Leader
The county averages 91.3 inches of snow, far exceeding the state norm. It is also cooler than the state average temperature of 49.9°F and drier than the 38.5-inch precipitation average.
Vastly More Snow Than Klickitat
Okanogan receives 91.3 inches of snow, more than double the 40.8 inches seen in Klickitat County. It also records 31 extreme heat days, the highest in this regional group.
Intense Heat and Heavy Snow
July is hot with a 71.2°F average and 31 days of extreme heat. Winters are severe, featuring a January average of 25.8°F and over 91 inches of annual snowfall.
Equip for All Four Seasons
Heavy-duty snow blowers and winter tires are essential for the 91.3 inches of snow. High-capacity cooling systems are also required to manage the 31 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.