Skagit County Climate
Skagit County, Washington
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
51.2°F
Annual Precip
57.9"
Annual Snowfall
11.0"
Extreme Heat Days
2
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8b
Minimum winter temperature range for plant survival
1,834
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Skagit County
Climate Verdict
Skagit County has a mild, with an average annual temperature of 51.2°F, very wet conditions receiving 57.9 inches of precipitation annually, rare extreme heat with only 2.32 days above 90°F annually, light snow averaging 11.0 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 39.8°F. summers are pleasantly cool with July averaging 64.1°F. The climate is remarkably stable year-round, with only a 24°F difference between January and July. December is typically the coldest month and August the warmest.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Skagit County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Skagit County closely matches the Washington statewide average temperature of 49.9°F, it is also noticeably wetter, receiving 19.4 inches more precipitation than the state average, the county experiences 15.67276705276705 fewer extreme heat days than the state average.
Climate Profile
About Skagit County Weather
A Balanced Pacific Northwest Profile
Skagit County’s 51.2°F annual average temperature is close to the national median. It receives 57.9 inches of annual precipitation, characterizing it as a classic wet, temperate environment.
Warmer than the Washington State Average
Skagit County is slightly warmer than the state average of 49.9°F. Its rainfall of 57.9 inches significantly exceeds the state mean of 38.5 inches, fueled by its position between the Sound and the Cascades.
More Precipitation than Snohomish County
Skagit receives 57.9 inches of rain annually, topping Snohomish County’s 54.1 inches. It also sees more winter accumulation, with 11.0 inches of snow compared to just 3.6 inches in Snohomish.
Cool Summers and Steady Winter Rain
July temperatures average 64.1°F with only 2 days of extreme heat per year. Winters remain above freezing on average, though the county still sees 11.0 inches of snow during the colder months.
Ready the Rain Boots and Garden Plugs
The low frequency of extreme heat makes heavy HVAC cooling a low priority for many. Residents should instead invest in high-quality waterproof gear and plan landscaping around the nearly 60 inches of annual rainfall.
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.