Coos County Climate
Coos County, Oregon
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
53.0°F
Annual Precip
60.6"
Annual Snowfall
0.3"
Extreme Heat Days
3
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
9a
Minimum winter temperature range for plant survival
1,747
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Coos County
Climate Verdict
Coos County has a mild, with an average annual temperature of 53.0°F, very wet conditions receiving 60.6 inches of precipitation annually, rare extreme heat with only 2.58 days above 90°F annually, light snow averaging 0.3 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 46.1°F. summers are pleasantly cool with July averaging 61.0°F. The climate is remarkably stable year-round, with only a 15°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 Coos County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Coos County closely matches the Oregon statewide average temperature of 50.5°F, it is also noticeably wetter, receiving 23.2 inches more precipitation than the state average, the county experiences 20.757914423539418 fewer extreme heat days than the state average.
Climate Profile
About Coos County Weather
Mild and Moist Southern Coast
Coos County features an annual average temperature of 53.0°F, sitting near the national median. This coastal region is defined by heavy moisture, receiving 60.6 inches of precipitation annually.
Warmer and Wetter Than Average
At 53.0°F, Coos County is warmer than the Oregon state average of 50.5°F. It receives 60.6 inches of rain per year, which is over 20 inches more than the statewide average of 37.4 inches.
A Haven from Extreme Heat
With only 3 extreme heat days annually, Coos is significantly cooler in summer than inland neighbors like Douglas County. Its 46.1°F winter average is among the mildest in the state, avoiding the snow common in other regions.
Constant Cool with Minimal Snow
Summers are exceptionally mild with a July average of 61.0°F, while winters remain temperate with an average of 46.1°F. Snowfall is nearly non-existent, averaging only 0.3 inches annually.
Pack Layers for Constant Cool
The maritime climate requires moisture-wicking layers rather than heavy winter parkas. Residents should prioritize home moisture control and drainage to manage the 60.6 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.