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Seattle, Washington Climate Averages
Lat: 47.61N, Lon: 122.33W
Wx Zone: WAZ558
Wx Zone: WAZ558
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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 36°F | Hi 46°F Lo 35°F | Hi 51°F Lo 37°F | Hi 56°F Lo 40°F | Hi 64°F Lo 44°F | Hi 69°F Lo 48°F | Hi 76°F Lo 52°F | Hi 76°F Lo 53°F | Hi 70°F Lo 51°F | Hi 59°F Lo 45°F | Hi 49°F Lo 40°F | Hi 43°F Lo 35°F |
| 5 mph | 5 mph | 5 mph | 5 mph | 4 mph | 4 mph | 3 mph | 3 mph | 4 mph | 4 mph | 5 mph | 5 mph |
| 0.7 in | 0.6 in | 0.2 in | 0.4 in | 0.2 in | 0.1 in | 0.1 in | 0.1 in | 0.3 in | 0.5 in | 0.6 in | 0.9 in |
| 84% | 84% | 83% | 80% | 75% | 74% | 69% | 71% | 75% | 79% | 84% | 84% |
| 55% | 54% | 51% | 49% | 40% | 40% | 26% | 25% | 33% | 41% | 52% | 56% |
| 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 |
| 19 | 17 | 19 | 19 | 21 | 23 | 26 | 26 | 21 | 21 | 17 | 18 |
| 9 | 8 | 8 | 8 | 6 | 4 | 4 | 2 | 6 | 7 | 9 | 9 |
| 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 7 | 7 | 7 | 6 | 7 | 8 | 3 | 4 | 6 | 5 | 5 | 6 |
| 2 | 2 | 3 | 3 | 4 | 5 | 5 | 4 | 4 | 3 | 2 | 2 |
| 136 | 128 | 201 | 250 | 296 | 295 | 338 | 337 | 281 | 174 | 139 | 134 |
| 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.