Average annual temperature is 11.0 °C
Absolute maximum temperature: 38.4 °C
Absolute minimum temperature: -5.2 °C
Number of sunny days: 147 days
Number of rainy days: 217 days
Number of snow days: 1 day
Look at detailed online map of Town of Cathlamet
* Weather data for Town of Cathlamet 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) | 12.3 | 14.5 | 17.8 | 28.4 | 31.0 | 30.5 | 34.0 | 38.4 | 30.1 | 27.3 | 15.9 | 14.7 |
| Average daytime temperature (°C) | 8.9 | 8.3 | 10.4 | 12.7 | 19.4 | 20.6 | 24.3 | 26.2 | 21.4 | 17.4 | 11.6 | 10.5 |
| Average temperature (°C) | 5.7 | 4.4 | 5.4 | 7.8 | 13.8 | 14.7 | 17.5 | 19.3 | 15.6 | 12.4 | 7.8 | 7.6 |
| Average night temperature (°C) | 3.3 | 1.9 | 2.0 | 4.5 | 9.7 | 10.7 | 12.7 | 14.9 | 11.7 | 9.6 | 5.3 | 5.5 |
| Absolute minimum temperature (°C) | -3.3 | -5.2 | -0.8 | -0.4 | 5.9 | 6.1 | 10.3 | 11.5 | 7.4 | 0.9 | -0.2 | 0.6 |
| 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 | 4.2 | 6.4 | 6.1 | 9.8 | 10.5 | 12.1 | 10.6 | 7.6 | 5.7 | 5.1 | 3.0 |
| Precipitation (mm) | 191 | 157 | 204 | 246 | 31 | 33 | 10 | 27 | 96 | 137 | 198 | 341 |
| Sunny days | 7 | 9 | 4 | 5 | 19 | 17 | 23 | 17 | 13 | 13 | 14 | 6 |
| Rainy days | 24 | 18 | 27 | 25 | 12 | 13 | 8 | 14 | 17 | 18 | 16 | 25 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Town of Cathlamet during the most sunny months:
Months with the longest average daylight duration in Town of Cathlamet:
The largest precipitation sum in Town of Cathlamet is at