Okanogan County Climate
Okanogan County, Washington
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
48.1°F
Annual Precip
16.6"
Annual Snowfall
91.3"
Extreme Heat Days
31
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6b
Minimum winter temperature range for plant survival
2,416
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Okanogan County
Climate Verdict
Okanogan County has a cool, averaging 48.1°F annually, semi-arid conditions with only 16.6 inches of annual precipitation, occasional hot days — 31.339999999999996 per year above 90°F, heavy winter snowfall averaging 91.3 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 25.8°F. summers are warm — July averages 71.2°F. The 45°F seasonal variation provides noticeable but manageable change. December is typically the coldest month and July the warmest.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Okanogan County closely matches the Washington statewide average temperature of 49.9°F, it is also noticeably drier, receiving 21.9 inches less precipitation than the state average.
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 sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.