Average annual temperature is 13.9 °C
Absolute maximum temperature: 37.5 °C
Absolute minimum temperature: -9.6 °C
Number of sunny days: 182 days
Number of rainy days: 181 days
Number of snow days: 2 days
Look at detailed online map of Keller
* Weather data for Keller 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) | 17.1 | 22.4 | 25.1 | 30.2 | 29.0 | 33.3 | 37.5 | 34.1 | 36.5 | 27.6 | 23.2 | 16.5 |
| Average daytime temperature (°C) | 9.2 | 11.6 | 12.5 | 21.5 | 22.9 | 27.5 | 32.2 | 30.5 | 26.5 | 20.5 | 12.9 | 9.9 |
| Average temperature (°C) | 5.1 | 5.8 | 6.5 | 14.3 | 16.1 | 20.9 | 25.5 | 24.2 | 20.6 | 14.7 | 7.1 | 5.4 |
| Average night temperature (°C) | 1.8 | 1.2 | 1.6 | 8.3 | 9.9 | 15.2 | 20.4 | 19.1 | 15.7 | 10.1 | 2.6 | 1.8 |
| Absolute minimum temperature (°C) | -2.9 | -9.6 | -5.3 | 0.6 | 5.1 | 10.7 | 17.8 | 14.9 | 9.7 | 4.5 | -5.3 | -3.7 |
| 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 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.5 | 11.2 | 10.0 | 9.5 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.9 | 7.0 | 7.5 | 9.4 | 10.5 | 10.7 | 11.7 | 11.1 | 8.7 | 8.4 | 7.6 | 5.3 |
| Precipitation (mm) | 59 | 57 | 72 | 123 | 26 | 121 | 124 | 41 | 165 | 52 | 57 | 128 |
| Sunny days | 13 | 17 | 12 | 17 | 16 | 14 | 7 | 11 | 16 | 17 | 24 | 18 |
| Rainy days | 17 | 10 | 19 | 13 | 15 | 16 | 24 | 20 | 14 | 14 | 6 | 13 |
| Snow days | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Keller during the most sunny months:
The largest precipitation sum in Keller is at