Sedro-Woolley, WA
Climate overview — based on NOAA 1991-2020 normals from SEDRO-WOOLLEY, WA US.
Year-round temperatures (°F)
Climate summary
Sedro-Woolley has an annual average temperature of 51.3°F with about 48.5 inches of precipitation per year and 5.7 inches of snow. The warmest month is August (average high 75.2°F), and the coldest is December (average low 34.2°F). November is typically the wettest month (7.02 in) and July the driest (1.34 in). Snow typically falls from November through March.
Best time to visit Sedro-Woolley
Full guide →Climate change signal
All-time records →28 of 366 (7.7%) of Sedro-Woolley's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1890s | 20 | |
| 1900s | 47 | |
| 1910s | 66 | |
| 1920s | 24 | |
| 1930s | 32 | |
| 1940s | 34 | |
| 1950s | 22 | |
| 1960s | 28 | |
| 1970s | 19 | |
| 1980s | 16 | |
| 1990s | 8 | |
| 2000s | 20 | |
| 2010s | 16 | |
| 2020s | 14 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 46.0°F | 34.7°F | 40.3°F | 6.18 in | 0.6 in | 20 |
| February | 48.7°F | 35.0°F | 41.8°F | 4.11 in | 0.2 in | 17 |
| March | 53.0°F | 37.8°F | 45.4°F | 4.76 in | 0.4 in | 20 |
| April | 58.3°F | 41.3°F | 49.8°F | 4.17 in | — | 17 |
| May | 64.7°F | 46.8°F | 55.7°F | 3.46 in | — | 14 |
| June | 68.8°F | 50.6°F | 59.7°F | 2.60 in | — | 13 |
| July | 74.5°F | 53.1°F | 63.8°F | 1.34 in | — | 7 |
| August | 75.2°F | 52.9°F | 64.0°F | 1.60 in | — | 7 |
| September | 69.5°F | 49.3°F | 59.4°F | 2.86 in | — | 12 |
| October | 59.6°F | 43.2°F | 51.4°F | 4.98 in | 0.1 in | 18 |
| November | 50.4°F | 38.6°F | 44.5°F | 7.02 in | 0.7 in | 21 |
| December | 44.8°F | 34.2°F | 39.5°F | 5.45 in | 3.7 in | 21 |
Climate twins of Sedro-Woolley
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).