WeatherWX.com
Washington Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 49°F Lo 34°F | Hi 54°F Lo 37°F | Hi 60°F Lo 43°F | Hi 71°F Lo 52°F | Hi 78°F Lo 60°F | Hi 85°F Lo 67°F | Hi 89°F Lo 71°F | Hi 88°F Lo 70°F | Hi 83°F Lo 65°F | Hi 73°F Lo 56°F | Hi 61°F Lo 45°F | Hi 55°F Lo 40°F |
| 7 mph | 7 mph | 8 mph | 8 mph | 7 mph | 6 mph | 6 mph | 5 mph | 6 mph | 7 mph | 7 mph | 7 mph |
| 4.7 in | 4.8 in | 5.1 in | 5.1 in | 7 in | 6.9 in | 8 in | 8.5 in | 7 in | 4.5 in | 4.6 in | 5 in |
| 76% | 77% | 76% | 74% | 77% | 77% | 78% | 79% | 79% | 78% | 76% | 79% |
| 41% | 44% | 44% | 35% | 38% | 34% | 33% | 37% | 38% | 34% | 36% | 41% |
| 30.1 in | 30.1 in | 30.1 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.1 in | 30.1 in |
| 23 | 20 | 22 | 23 | 22 | 20 | 19 | 20 | 23 | 26 | 24 | 24 |
| 6 | 6 | 8 | 7 | 9 | 10 | 12 | 11 | 7 | 5 | 5 | 6 |
| 2 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 5 | 3 | 3 | 4 | 9 | 9 | 8 | 11 | 8 | 5 | 5 | 4 |
| 2 | 3 | 4 | 5 | 6 | 7 | 6 | 6 | 5 | 4 | 3 | 3 |
| 272 | 245 | 272 | 309 | 317 | 322 | 347 | 337 | 306 | 306 | 285 | 280 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 10°C Lo 1°C | Hi 12°C Lo 3°C | Hi 16°C Lo 6°C | Hi 21°C Lo 11°C | Hi 26°C Lo 16°C | Hi 30°C Lo 20°C | Hi 32°C Lo 22°C | Hi 31°C Lo 21°C | Hi 28°C Lo 19°C | Hi 23°C Lo 13°C | Hi 16°C Lo 7°C | Hi 13°C Lo 4°C |
| 11 km/h | 12 km/h | 13 km/h | 13 km/h | 11 km/h | 10 km/h | 10 km/h | 9 km/h | 10 km/h | 11 km/h | 11 km/h | 11 km/h |
| 120 mm | 121 mm | 131 mm | 128 mm | 179 mm | 176 mm | 203 mm | 215 mm | 179 mm | 114 mm | 117 mm | 126 mm |
| 76% | 77% | 76% | 74% | 77% | 77% | 78% | 79% | 79% | 78% | 76% | 79% |
| 41% | 44% | 44% | 35% | 38% | 34% | 33% | 37% | 38% | 34% | 36% | 41% |
| 1020 mb | 1020 mb | 1019 mb | 1017 mb | 1017 mb | 1015 mb | 1015 mb | 1016 mb | 1016 mb | 1017 mb | 1021 mb | 1020 mb |
| 23 | 20 | 22 | 23 | 22 | 20 | 19 | 20 | 23 | 26 | 24 | 24 |
| 6 | 6 | 8 | 7 | 9 | 10 | 12 | 11 | 7 | 5 | 5 | 6 |
| 2 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 5 | 3 | 3 | 4 | 9 | 9 | 8 | 11 | 8 | 5 | 5 | 4 |
| 2 | 3 | 4 | 5 | 6 | 7 | 6 | 6 | 5 | 4 | 3 | 3 |
| 272 | 245 | 272 | 309 | 317 | 322 | 347 | 337 | 306 | 306 | 285 | 280 |
| Month |
| Avg. Temperatures |
| Avg. Wind Speed |
| Avg. Precipitation |
| Average Humidity |
| Avg. Cloud Cover |
| Pressure Average |
| Average Dry Days |
| Avg. Precip. Days |
| Avg. Snow Days |
| Average Fog Days |
| Average UV Index |
| Avg. Hours of Sun |
Averages are based on historical weather data from the past 10 years.
