Renton, WA Weather & Climate Normals
Renton's real weather, in one number
Renton, 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.
Renton's hottest and coldest months
Renton's hottest month is Aug, averaging 68°F; its coldest is Dec, averaging 42°F, a 25.7°F swing across the year, a middling gap by national standards.
Renton's weather across the year
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 48°F | 37°F | 4.93in |
| Feb | 50°F | 37°F | 3.21in |
| Mar | 55°F | 40°F | 3.74in |
| Apr | 60°F | 43°F | 2.83in |
| May | 66°F | 49°F | 1.86in |
| Jun | 71°F | 54°F | 1.47in |
| Jul | 77°F | 58°F | 0.6in |
| Aug | 78°F | 57°F | 0.89in |
| Sep | 72°F | 53°F | 1.53in |
| Oct | 61°F | 46°F | 3.49in |
| Nov | 52°F | 40°F | 5.61in |
| Dec | 47°F | 37°F | 4.53in |
May, Jun, Jul, Aug, and Sep are the best time to see Renton at its mildest; the rest of the year, plan around Dec's cold.
Rain and snow in Renton
Over a typical year, Renton sees about 34.69in of precipitation a year across roughly 153 days with measurable rain or snow. That station has no snowfall reading, so none is shown rather than assumed.
Where Renton ranks
Renton ranks 727 of 4876 US cities in this dataset for comfort score, and 33 of 125 within WA. About 105,543 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Renton Muni Ap, WA US, 1.3 miles from Renton, not a prediction for any specific day.
More on how this is worked out
Why some cities show no snow or rain figure · How the comfort score is calculated