Coos Bay, OR Weather & Climate Normals
Coos Bay's real weather, in one number
Coos Bay, OR scores 54/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 4 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Coos Bay's hottest and coldest months
Coos Bay's hottest month is Aug, averaging 61°F; its coldest is Dec, averaging 47°F, a 13.8°F swing across the year, one of the smaller gaps in this dataset.
Coos Bay's weather across the year
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 54°F | 41°F | 9.43in | 0in |
| Feb | 54°F | 41°F | 6.99in | 0in |
| Mar | 55°F | 42°F | 7.49in | 0in |
| Apr | 57°F | 44°F | 5.4in | 0in |
| May | 61°F | 48°F | 2.95in | 0in |
| Jun | 64°F | 51°F | 1.55in | 0in |
| Jul | 66°F | 54°F | 0.35in | 0in |
| Aug | 67°F | 54°F | 0.42in | 0in |
| Sep | 67°F | 51°F | 1.55in | 0in |
| Oct | 63°F | 47°F | 4.24in | 0in |
| Nov | 57°F | 44°F | 8.3in | 0in |
| Dec | 53°F | 40°F | 10.47in | 0.2in |
Jun, Jul, Aug, and Sep are the best time to see Coos Bay at its mildest; the rest of the year, plan around Dec's cold.
Rain and snow in Coos Bay
Coos Bay averages 59.14in of precipitation a year across roughly 159 days with measurable rain or snow, and 0.2in of snow a year.
Where Coos Bay ranks
Coos Bay ranks 952 of 4876 US cities in this dataset for comfort score, and 49 of 80 within OR. About 15,801 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from North Bend Rgnl Ap, OR US, 2.3 miles from Coos Bay, not a prediction for any specific day.
More on how this is worked out
How the comfort score is calculated · Why some cities show no snow or rain figure