Black Diamond, WA Weather & Climate Normals
Black Diamond's real weather, in one number
Black Diamond, WA scores 49/100 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.
Black Diamond's hottest and coldest months
Black Diamond's hottest month is Aug, averaging 64°F; its coldest is Dec, averaging 38°F, a 26°F swing across the year, a middling gap by national standards.
Black Diamond's weather across the year
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 46°F | 33°F | 7.99in |
| Feb | 49°F | 33°F | 5.44in |
| Mar | 53°F | 35°F | 6.19in |
| Apr | 59°F | 39°F | 5.55in |
| May | 66°F | 44°F | 3.87in |
| Jun | 70°F | 48°F | 3.15in |
| Jul | 77°F | 51°F | 1.29in |
| Aug | 77°F | 52°F | 1.64in |
| Sep | 71°F | 47°F | 2.83in |
| Oct | 60°F | 41°F | 5.76in |
| Nov | 50°F | 36°F | 8.51in |
| Dec | 45°F | 32°F | 7.46in |
Jun, Jul, Aug, and Sep are the best time to see Black Diamond at its mildest; the rest of the year, plan around Dec's cold.
Rain and snow in Black Diamond
Over a typical year, Black Diamond sees about 59.68in of precipitation a year across roughly 186 days with measurable rain or snow. That station has no snowfall reading, so none is shown rather than assumed.
Where Black Diamond ranks
Black Diamond ranks 2236 of 4876 US cities in this dataset for comfort score, and 106 of 125 within WA. About 6,787 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Landsburg, WA US, 5.0 miles from Black Diamond, 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