Average annual temperature is 20.1 °C
Absolute maximum temperature: 39.9 °C
Absolute minimum temperature: -2.8 °C
Number of sunny days: 191 days
Number of rainy days: 174 days
Look at detailed online map of Kelso
* Weather data for 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) | 24.6 | 28.0 | 28.2 | 30.1 | 32.1 | 37.1 | 37.4 | 39.9 | 35.4 | 32.0 | 28.0 | 24.8 |
| Average daytime temperature (°C) | 17.1 | 19.5 | 22.3 | 23.7 | 29.2 | 33.7 | 34.6 | 36.8 | 32.3 | 26.8 | 19.4 | 16.6 |
| Average temperature (°C) | 12.1 | 13.3 | 15.8 | 17.9 | 23.2 | 27.2 | 28.8 | 30.8 | 26.3 | 20.6 | 13.9 | 10.8 |
| Average night temperature (°C) | 8.2 | 9.0 | 10.9 | 13.2 | 17.9 | 21.8 | 24.2 | 25.6 | 21.1 | 15.5 | 9.6 | 6.2 |
| Absolute minimum temperature (°C) | -1.1 | -1.4 | -2.8 | 7.9 | 11.6 | 19.1 | 20.4 | 19.8 | 17.2 | 5.9 | 1.2 | -0.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.3 | 11.0 | 12.0 | 13.0 | 13.8 | 14.3 | 14.1 | 13.3 | 12.4 | 11.4 | 10.5 | 10.0 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 6.5 | 7.5 | 8.9 | 8.2 | 11.0 | 11.9 | 11.4 | 11.6 | 10.9 | 8.6 | 6.0 | 7.8 |
| Precipitation (mm) | 170 | 108 | 118 | 170 | 32 | 67 | 81 | 20 | 40 | 13 | 70 | 102 |
| Sunny days | 16 | 12 | 13 | 12 | 10 | 8 | 13 | 24 | 18 | 23 | 18 | 24 |
| Rainy days | 15 | 16 | 18 | 18 | 21 | 22 | 18 | 7 | 12 | 8 | 12 | 7 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Kelso during the most sunny months:
The largest precipitation sum in Kelso is at