Kelso, WA Weather & Climate Normals
Kelso's real weather, in one number
Kelso, WA scores 56/100 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. 5 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Kelso's hottest and coldest months
Kelso's hottest month is Aug, averaging 67°F; its coldest is Dec, averaging 41°F, a 26.2°F swing across the year, a middling gap by national standards.
Rain and snow in Kelso
Over a typical year, Kelso sees about 48.12in of precipitation a year across roughly 192 days with measurable rain or snow. That station has no snowfall reading, so none is shown rather than assumed.
Where Kelso ranks
Kelso ranks 784 of 4876 US cities in this dataset for comfort score, and 56 of 125 within WA. About 12,737 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from LONGVIEW, WA US, 2.7 miles from Kelso, not a prediction for any specific day.
More on how this is worked out
Why some cities show no snow or rain figure · What a 30-year climate normal actually is