Clatsop County Climate
Clatsop County, Oregon
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
51.6°F
Annual Precip
89.4"
Annual Snowfall
0.7"
Extreme Heat Days
1
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
9a
Minimum winter temperature range for plant survival
1,504
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Clatsop County
Climate Verdict
Clatsop County has a mild, with an average annual temperature of 51.6°F, very wet conditions receiving 89.4 inches of precipitation annually, rare extreme heat with only 0.7000000000000001 days above 90°F annually, light snow averaging 0.7 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 44.2°F. summers are pleasantly cool with July averaging 60.4°F. The climate is remarkably stable year-round, with only a 16°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 Clatsop County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Clatsop County closely matches the Oregon statewide average temperature of 50.5°F, it is also noticeably wetter, receiving 52.0 inches more precipitation than the state average, the county experiences 22.63791442353942 fewer extreme heat days than the state average.
Climate Profile
About Clatsop County Weather
Temperate Coastal Humidity and Rain
Clatsop County averages 51.6°F annually, which is slightly below the national median. It is one of the wettest places in the country, receiving a staggering 89.4 inches of precipitation every year.
Oregon's Rain-Heavy Coastal Leader
With 89.4 inches of annual precipitation, Clatsop far exceeds the Oregon state average of 37.4 inches. The average temperature of 51.6°F is just above the state mean, reflecting the stabilizing influence of the Pacific Ocean.
Cooler Summers Than Inland Neighbors
Clatsop experiences virtually no extreme heat, averaging just one day above 90°F per year. This sets it apart from inland counties where summer heat is much more frequent and intense.
Consistent Temperatures and Very Little Snow
Winter temperatures stay mild with a January average of 44.2°F and negligible snowfall of 0.7 inches. July remains cool at 60.4°F, making for one of the most stable temperature profiles in the Pacific Northwest.
Prepare for Persistent Moisture
Managing 89 inches of rain requires industrial-grade rain gear and rigorous home maintenance to prevent mold and water damage. Air conditioning is rarely needed, but dehumidifiers are a common household staple.
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.