Average annual temperature is 14.4 °C
Absolute maximum temperature: 35.5 °C
Absolute minimum temperature: -7.0 °C
Number of sunny days: 182 days
Number of rainy days: 181 days
Number of snow days: 2 days
Look at detailed online map of Wilsonville
* Weather data for Wilsonville United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 18.7 | 22.9 | 25.0 | 28.0 | 30.6 | 33.7 | 35.5 | 34.8 | 33.6 | 30.3 | 25.8 | 17.3 |
| Average daytime temperature (°C) | 9.8 | 13.8 | 14.1 | 19.8 | 24.5 | 28.5 | 30.6 | 29.7 | 28.1 | 21.0 | 14.4 | 10.5 |
| Average temperature (°C) | 5.3 | 7.1 | 7.6 | 13.1 | 18.0 | 21.7 | 24.8 | 23.9 | 21.4 | 15.3 | 8.4 | 5.5 |
| Average night temperature (°C) | 1.9 | 2.3 | 2.8 | 7.4 | 12.3 | 16.0 | 20.0 | 18.9 | 15.8 | 11.0 | 4.2 | 2.0 |
| Absolute minimum temperature (°C) | -5.2 | -7.0 | -5.9 | 0.2 | 3.8 | 10.6 | 15.3 | 13.3 | 11.3 | -1.4 | -5.5 | -6.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 9.6 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.5 | 7.5 | 7.6 | 9.4 | 10.6 | 10.5 | 11.5 | 10.7 | 10.5 | 7.4 | 7.4 | 5.2 |
| Precipitation (mm) | 147 | 117 | 140 | 76 | 48 | 114 | 93 | 115 | 40 | 72 | 40 | 90 |
| Sunny days | 8 | 14 | 20 | 15 | 17 | 15 | 8 | 16 | 15 | 19 | 21 | 14 |
| Rainy days | 22 | 14 | 11 | 15 | 14 | 15 | 23 | 15 | 15 | 12 | 9 | 16 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Wilsonville during the most sunny months:
The largest precipitation sum in Wilsonville is at