Average annual temperature is 11.1 °C
Absolute maximum temperature: 37.9 °C
Absolute minimum temperature: -4.6 °C
Number of sunny days: 148 days
Number of rainy days: 216 days
Number of snow days: 1 day
Look at detailed online map of Wahkiakum County
* Weather data for Wahkiakum 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) | 12.8 | 14.4 | 17.6 | 27.9 | 31.3 | 30.5 | 33.6 | 37.9 | 30.0 | 26.4 | 15.8 | 14.5 |
| Average daytime temperature (°C) | 9.0 | 8.3 | 10.2 | 12.4 | 19.6 | 20.8 | 24.7 | 26.3 | 21.3 | 17.3 | 11.7 | 10.7 |
| Average temperature (°C) | 5.9 | 4.6 | 5.4 | 7.7 | 13.8 | 14.7 | 17.5 | 19.2 | 15.3 | 12.4 | 7.9 | 7.8 |
| Average night temperature (°C) | 3.7 | 2.2 | 2.3 | 4.6 | 9.7 | 10.3 | 11.9 | 14.7 | 11.4 | 9.5 | 5.5 | 5.9 |
| Absolute minimum temperature (°C) | -3.7 | -4.6 | -2.0 | -0.8 | 5.5 | 5.8 | 8.8 | 10.5 | 7.1 | 0.3 | -0.9 | 1.3 |
| 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 | 8.0 |
| Daylight mean duration (h) | 9.1 | 10.3 | 11.9 | 13.6 | 15.0 | 15.7 | 15.4 | 14.1 | 12.6 | 10.9 | 9.5 | 8.7 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 3.0 | 4.4 | 6.4 | 6.1 | 10.3 | 11.0 | 12.5 | 10.8 | 7.8 | 5.9 | 5.1 | 3.1 |
| Precipitation (mm) | 227 | 207 | 240 | 289 | 24 | 41 | 12 | 29 | 169 | 189 | 241 | 366 |
| Sunny days | 6 | 9 | 4 | 5 | 17 | 17 | 26 | 20 | 13 | 12 | 13 | 6 |
| Rainy days | 25 | 18 | 27 | 25 | 14 | 13 | 5 | 11 | 17 | 19 | 17 | 25 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Wahkiakum County during the most sunny months:
Months with the longest average daylight duration in Wahkiakum County:
The largest precipitation sum in Wahkiakum County is at