Average annual temperature is 11.1 °C
Absolute maximum temperature: 36.1 °C
Absolute minimum temperature: -6.1 °C
Number of sunny days: 139 days
Number of rainy days: 225 days
Number of snow days: 1 day
Look at detailed online map of Clatsop County
* Weather data for Clatsop 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) | 13.7 | 14.1 | 17.5 | 29.7 | 32.2 | 23.7 | 27.7 | 36.1 | 28.5 | 28.5 | 16.7 | 15.5 |
| Average daytime temperature (°C) | 9.4 | 8.7 | 9.9 | 11.7 | 17.4 | 17.7 | 21.0 | 23.8 | 20.1 | 17.5 | 12.9 | 12.1 |
| Average temperature (°C) | 6.7 | 5.3 | 5.7 | 7.9 | 13.3 | 13.7 | 16.0 | 18.4 | 14.9 | 12.8 | 8.6 | 9.1 |
| Average night temperature (°C) | 4.7 | 2.9 | 2.8 | 5.3 | 10.2 | 10.7 | 11.9 | 14.5 | 10.9 | 9.7 | 5.5 | 6.9 |
| Absolute minimum temperature (°C) | -2.1 | -5.3 | -6.1 | 1.0 | 6.4 | 6.1 | 8.1 | 10.4 | 6.5 | 1.4 | -1.8 | 2.1 |
| 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 | 8.0 |
| Daylight mean duration (h) | 9.1 | 10.4 | 11.9 | 13.6 | 15.0 | 15.7 | 15.3 | 14.1 | 12.5 | 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) | 3.2 | 4.7 | 6.5 | 6.3 | 10.0 | 10.9 | 11.9 | 10.8 | 8.1 | 6.0 | 5.4 | 3.3 |
| Precipitation (mm) | 194 | 198 | 262 | 311 | 25 | 47 | 12 | 15 | 98 | 156 | 222 | 344 |
| Sunny days | 5 | 8 | 4 | 4 | 18 | 14 | 24 | 19 | 14 | 12 | 11 | 6 |
| Rainy days | 26 | 19 | 27 | 26 | 13 | 16 | 7 | 12 | 16 | 19 | 19 | 25 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Clatsop County during the most sunny months:
Months with the longest average daylight duration in Clatsop County:
The largest precipitation sum in Clatsop County is at