Coos County Climate
Coos County, Oregon
Avg Annual Temp
53.0°F
Annual Precip
60.6"
Annual Snowfall
0.3"
Extreme Heat Days
2.58
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
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 source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.