Average annual temperature is 10.4 °C
Absolute maximum temperature: 38.3 °C
Absolute minimum temperature: -13.0 °C
Number of sunny days: 157 days
Number of rainy days: 207 days
Number of snow days: 1 day
Look at detailed online map of City of Kelso
* Weather data for City of Kelso 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 | 12.7 | 16.6 | 27.6 | 30.3 | 29.8 | 33.3 | 38.3 | 31.0 | 26.1 | 15.2 | 14.2 |
| Average daytime temperature (°C) | 7.9 | 6.7 | 9.6 | 12.3 | 20.9 | 22.4 | 27.1 | 28.8 | 22.0 | 16.7 | 10.2 | 9.4 |
| Average temperature (°C) | 4.6 | 2.6 | 4.4 | 7.2 | 13.8 | 14.7 | 18.1 | 19.8 | 15.0 | 11.1 | 6.1 | 6.3 |
| Average night temperature (°C) | 2.2 | 0.1 | 1.0 | 4.0 | 8.9 | 9.5 | 11.6 | 13.6 | 10.6 | 7.5 | 3.3 | 4.0 |
| Absolute minimum temperature (°C) | -5.4 | -13.0 | -3.3 | -1.1 | 5.3 | 5.3 | 9.0 | 9.8 | 6.9 | -1.1 | -3.9 | -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 | 10.4 | 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) | 2.9 | 4.3 | 5.6 | 5.7 | 10.5 | 11.7 | 12.9 | 11.3 | 8.2 | 6.2 | 5.0 | 2.9 |
| Precipitation (mm) | 132 | 85 | 136 | 190 | 33 | 32 | 5 | 25 | 79 | 91 | 149 | 288 |
| Sunny days | 6 | 8 | 4 | 5 | 17 | 21 | 26 | 19 | 15 | 16 | 12 | 8 |
| Rainy days | 25 | 19 | 27 | 25 | 14 | 9 | 5 | 12 | 15 | 15 | 18 | 23 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit City of Kelso during the most sunny months:
Months with the longest average daylight duration in City of Kelso:
The largest precipitation sum in City of Kelso is at