Ferry County Climate
Ferry County, Washington
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
43.8°F
Annual Precip
18.1"
Annual Snowfall
52.5"
Extreme Heat Days
18
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6b
Minimum winter temperature range for plant survival
1,547
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Ferry County
Climate Verdict
Ferry County has a cool, averaging 43.8°F annually, semi-arid conditions with only 18.1 inches of annual precipitation, rare extreme heat with only 18.4 days above 90°F annually, moderate snowfall of 52.5 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 23.6°F. summers are pleasantly cool with July averaging 65.3°F. The 42°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
Ferry County is 6.1°F cooler than the Washington statewide average of 49.9°F, it is also noticeably drier, receiving 20.4 inches less precipitation than the state average.
Climate Profile
About Ferry County Weather
Highland Chills in Ferry County
Ferry County is significantly cooler than the national median with an annual average temperature of 43.8°F. Its mountainous terrain creates a distinct highland climate far removed from warmer southern averages.
Among Washington's Coldest Regions
This is one of Washington’s coldest regions, falling 6.1 degrees below the state average of 49.9°F. While the state average precipitation is 38.5 inches, Ferry remains relatively dry at 18.1 inches.
Colder and Snowier Than Neighbors
Ferry is much colder and snowier than its southern neighbor Franklin, which enjoys a 52.2°F average. Its 52.5 inches of annual snow towers over the totals seen in the Columbia Basin.
Mild Summers and Heavy Snow
Winters are rigorous with a December-February average of 24.9°F and over 52 inches of snow. Summers remain mild at 62.7°F, though the county still sees 18 days of extreme heat above 90°F.
Gear Up for Deep Winter
Residents need robust home insulation and reliable heating to withstand the cold 23.6°F January nights. Sturdy winter tires are non-negotiable for navigating the 52.5 inches of annual snowfall.
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.