Average annual temperature is 12.9 °C
Absolute maximum temperature: 41.8 °C
Absolute minimum temperature: -9.1 °C
Number of sunny days: 205 days
Number of rainy days: 152 days
Number of snow days: 8 days
Look at detailed online map of Wasco County
* Weather data for Wasco 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) | 15.4 | 13.6 | 16.8 | 29.4 | 34.8 | 35.2 | 38.5 | 41.8 | 34.9 | 28.6 | 19.5 | 17.2 |
| Average daytime temperature (°C) | 8.3 | 9.1 | 10.5 | 15.9 | 26.0 | 29.1 | 34.0 | 33.3 | 25.2 | 18.9 | 10.6 | 8.6 |
| Average temperature (°C) | 3.2 | 3.4 | 5.1 | 10.0 | 18.5 | 21.3 | 25.7 | 25.3 | 18.2 | 12.8 | 6.3 | 4.6 |
| Average night temperature (°C) | 0.0 | -0.4 | 1.1 | 5.3 | 12.1 | 14.1 | 17.2 | 18.1 | 12.8 | 7.9 | 3.1 | 2.2 |
| Absolute minimum temperature (°C) | -9.0 | -9.1 | -3.6 | -1.0 | 5.5 | 7.8 | 13.1 | 12.0 | 6.3 | -1.6 | -5.0 | -2.3 |
| 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) | 4.9 | 6.2 | 7.4 | 9.4 | 12.4 | 13.5 | 14.0 | 11.8 | 9.8 | 8.3 | 5.3 | 3.1 |
| Precipitation (mm) | 39 | 19 | 55 | 62 | 23 | 4 | 0 | 15 | 30 | 31 | 47 | 108 |
| Sunny days | 12 | 12 | 9 | 9 | 21 | 23 | 31 | 26 | 19 | 19 | 15 | 9 |
| Rainy days | 18 | 14 | 19 | 21 | 10 | 7 | 0 | 5 | 11 | 12 | 14 | 21 |
| Snow days | 1 | 2 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The best time to visit Wasco County during the most sunny months:
Months with the longest average daylight duration in Wasco County:
The largest precipitation sum in Wasco County is at