World > North America > United States > Washington City of Seattle, WA
Seattle, Washington Climate Averages
Lat: 47.61N, Lon: 122.33W
Wx Zone: WAZ558
Wx Zone: WAZ558
Helpful Tip: Abbreviated, 7 Day, 14 Day Forecasts. There is a weather forecast for every taste.
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Seattle Monthly Averages
<-- 12 Month Weather Scroll -->
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 45°F Lo 35°F | Hi 46°F Lo 35°F | Hi 51°F Lo 37°F | Hi 57°F Lo 39°F | Hi 65°F Lo 44°F | Hi 70°F Lo 48°F | Hi 77°F Lo 52°F | Hi 77°F Lo 53°F | Hi 71°F Lo 50°F | Hi 59°F Lo 45°F | Hi 49°F Lo 39°F | Hi 43°F Lo 34°F |
| 5 mph | 5 mph | 5 mph | 5 mph | 4 mph | 4 mph | 4 mph | 4 mph | 4 mph | 4 mph | 5 mph | 5 mph |
| 1.1 in | 0.8 in | 0.6 in | 0.6 in | 0.5 in | 0.3 in | 0.1 in | 0.2 in | 0.3 in | 0.8 in | 0.9 in | 1.3 in |
| 85% | 84% | 82% | 79% | 74% | 72% | 67% | 70% | 73% | 78% | 84% | 85% |
| 58% | 57% | 55% | 53% | 45% | 45% | 29% | 27% | 35% | 44% | 56% | 58% |
| 30.6 in | 30.5 in | 30.5 in | 30.5 in | 30.5 in | 30.5 in | 30.5 in | 30.5 in | 30.5 in | 30.5 in | 30.5 in | 30.6 in |
| 17 | 16 | 17 | 16 | 20 | 20 | 26 | 26 | 22 | 20 | 16 | 17 |
| 11 | 9 | 12 | 10 | 8 | 7 | 5 | 3 | 6 | 9 | 11 | 11 |
| 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 10 | 10 | 10 | 10 | 11 | 11 | 6 | 6 | 7 | 8 | 8 | 9 |
| 2 | 2 | 3 | 3 | 4 | 5 | 6 | 4 | 4 | 3 | 2 | 2 |
| 128 | 121 | 188 | 233 | 274 | 276 | 323 | 332 | 273 | 168 | 132 | 127 |
| Month |
| Avg. Temperatures |
| Avg. Wind Speed |
| Avg. Precipitation |
| Average Humidity |
| Avg. Cloud Cover |
| Barometric Pressure |
| Average Dry Days |
| Avg. Precip. Days |
| Average Snow Days |
| Average Fog Days |
| Average UV Index |
| Avg. Hours of Sun |
Averages are based on historical weather data from the past 10 years.