Clallam County Climate
Clallam County, Washington
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
49.3°F
Annual Precip
58.7"
Annual Snowfall
2.9"
Extreme Heat Days
1
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8b
Minimum winter temperature range for plant survival
1,311
Limited to cold-tolerant varieties
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Clallam County
Climate Verdict
Clallam County has a cool, averaging 49.3°F annually, very wet conditions receiving 58.7 inches of precipitation annually, rare extreme heat with only 1.3166666666666667 days above 90°F annually, light snow averaging 2.9 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 39.7°F. summers are pleasantly cool with July averaging 60.8°F. The climate is remarkably stable year-round, with only a 21°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 Clallam County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Clallam County closely matches the Washington statewide average temperature of 49.9°F, it is also noticeably wetter, receiving 20.1 inches more precipitation than the state average, the county experiences 16.676100386100384 fewer extreme heat days than the state average.
Climate Profile
About Clallam County Weather
A cool, wet Pacific maritime climate
Clallam County stays cool with a 49.3°F annual average and heavy 58.7-inch precipitation. This is significantly wetter and cooler than the average American county.
Cooler summers than the state average
The county's average temperature of 49.3°F is just below the Washington average of 49.9°F. Its 58.7 inches of rain is nearly 20 inches higher than the state mean.
Wetter and milder than the interior
Clallam sees only one day of extreme heat annually, far fewer than inland counties. It receives 58.7 inches of rain, vastly out-precipitating the dry counties of eastern Washington.
Consistent moisture and very few extremes
Winters are mild at 39.9°F, while summers peak at a cool 60.8°F in July. The county only records about 2.9 inches of snow, as most precipitation falls as rain.
Invest in rain gear, not AC
With only one day of heat over 90°F, air conditioning is rarely a necessity. High-quality waterproof clothing and moisture control for homes are essential for the 58.7 inches of rain.
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.