Steilacoom, WA Weather & Climate Normals
Steilacoom's real weather, in one number
Steilacoom, WA scores 57/100 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.
Steilacoom's hottest and coldest months
Steilacoom's hottest month is Aug, averaging 65°F; its coldest is Dec, averaging 41°F, a 24°F swing across the year, a middling gap by national standards.
Steilacoom's weather across the year
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 46°F | 36°F | 6.06in |
| Feb | 48°F | 37°F | 4.11in |
| Mar | 53°F | 39°F | 4.63in |
| Apr | 58°F | 41°F | 3.39in |
| May | 65°F | 47°F | 2.08in |
| Jun | 70°F | 51°F | 1.36in |
| Jul | 76°F | 54°F | 0.68in |
| Aug | 76°F | 54°F | 0.86in |
| Sep | 70°F | 51°F | 1.54in |
| Oct | 59°F | 46°F | 4.32in |
| Nov | 51°F | 40°F | 7.18in |
| Dec | 46°F | 36°F | 5.81in |
May, Jun, Jul, Aug, and Sep are the best time to see Steilacoom at its mildest; the rest of the year, plan around Dec's cold.
Rain and snow in Steilacoom
Over a typical year, Steilacoom sees about 42.02in of precipitation a year across roughly 168 days with measurable rain or snow. That station has no snowfall reading, so none is shown rather than assumed.
Where Steilacoom ranks
Steilacoom ranks 711 of 4876 US cities in this dataset for comfort score, and 29 of 125 within WA. About 6,649 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Tacoma Narrows Ap, WA US, 6.8 miles from Steilacoom, 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