Wilsonville, OR
Climate overview — based on NOAA 1991-2020 normals from N WILLAMETTE EXP STN, OR US.
Year-round temperatures (°F)
Climate summary
Wilsonville has an annual average temperature of 53.9°F with about 42.4 inches of precipitation per year. The warmest month is August (average high 82.2°F), and the coldest is December (average low 35.5°F). December is typically the wettest month (6.60 in) and July the driest (0.45 in).
Best time to visit Wilsonville
Full guide →Climate change signal
All-time records →0 of 366 (0%) of Wilsonville'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.
| 1960s | 55 | |
| 1970s | 73 | |
| 1980s | 85 | |
| 1990s | 96 | |
| 2000s | 57 |
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 | 47.2°F | 36.4°F | 41.8°F | 6.12 in | — | 19 |
| February | 51.6°F | 36.6°F | 44.1°F | 4.20 in | — | 15 |
| March | 55.7°F | 38.9°F | 47.3°F | 4.92 in | — | 17 |
| April | 60.2°F | 42.1°F | 51.2°F | 3.28 in | — | 17 |
| May | 67.7°F | 47.1°F | 57.4°F | 2.44 in | — | 13 |
| June | 73.7°F | 51.7°F | 62.7°F | 1.59 in | — | 8 |
| July | 81.7°F | 55.5°F | 68.6°F | 0.45 in | — | 3 |
| August | 82.2°F | 55.3°F | 68.7°F | 0.53 in | — | 3 |
| September | 76.2°F | 51.3°F | 63.8°F | 1.73 in | — | 6 |
| October | 63.5°F | 44.6°F | 54.0°F | 4.27 in | — | 13 |
| November | 52.4°F | 39.2°F | 45.8°F | 6.25 in | — | 19 |
| December | 47.0°F | 35.5°F | 41.3°F | 6.60 in | — | 18 |
Climate twins of Wilsonville
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).