Average annual temperature is 11.8 °C
Absolute maximum temperature: 40.1 °C
Absolute minimum temperature: -7.8 °C
Number of sunny days: 178 days
Number of rainy days: 186 days
Number of snow days: 1 day
Look at detailed online map of Yamhill County
* Weather data for Yamhill County 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) | 13.6 | 11.6 | 16.4 | 28.4 | 31.0 | 32.8 | 36.0 | 40.1 | 32.6 | 26.9 | 17.0 | 15.2 |
| Average daytime temperature (°C) | 8.8 | 8.3 | 10.6 | 13.9 | 23.3 | 26.6 | 30.4 | 31.5 | 23.8 | 18.0 | 11.4 | 10.2 |
| Average temperature (°C) | 4.9 | 3.5 | 5.1 | 8.5 | 15.5 | 17.4 | 20.7 | 22.1 | 16.7 | 12.3 | 7.5 | 6.8 |
| Average night temperature (°C) | 1.9 | 0.3 | 1.4 | 4.7 | 9.7 | 10.7 | 13.1 | 15.2 | 11.4 | 8.6 | 4.5 | 4.6 |
| Absolute minimum temperature (°C) | -4.3 | -7.8 | -4.7 | -1.0 | 4.5 | 5.0 | 10.8 | 9.8 | 7.1 | 1.9 | -2.9 | -1.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.2 | 10.4 | 11.9 | 13.5 | 14.9 | 15.6 | 15.2 | 14.1 | 12.5 | 11.0 | 9.6 | 8.8 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 3.6 | 5.3 | 6.2 | 6.8 | 11.6 | 13.4 | 13.8 | 12.2 | 9.3 | 6.8 | 4.9 | 3.0 |
| Precipitation (mm) | 148 | 102 | 149 | 170 | 13 | 9 | 2 | 21 | 80 | 88 | 117 | 295 |
| Sunny days | 7 | 9 | 3 | 7 | 20 | 24 | 28 | 24 | 18 | 15 | 13 | 10 |
| Rainy days | 24 | 18 | 28 | 23 | 11 | 6 | 3 | 7 | 12 | 16 | 17 | 21 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Yamhill County during the most sunny months:
Months with the longest average daylight duration in Yamhill County:
The largest precipitation sum in Yamhill County is at