Average annual temperature is 13.3 °C
Absolute maximum temperature: 36.6 °C
Absolute minimum temperature: -15.9 °C
Number of sunny days: 209 days
Number of rainy days: 149 days
Number of snow days: 7 days
Look at detailed online map of Keokuk
* Weather data for Keokuk 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) | 16.5 | 13.9 | 22.2 | 28.1 | 32.0 | 34.0 | 36.3 | 36.6 | 33.0 | 30.1 | 21.8 | 15.7 |
| Average daytime temperature (°C) | 4.8 | 8.1 | 10.1 | 19.0 | 25.8 | 30.2 | 30.3 | 28.7 | 27.0 | 19.2 | 11.9 | 8.1 |
| Average temperature (°C) | 0.5 | 2.1 | 4.6 | 12.1 | 19.5 | 24.2 | 24.9 | 24.0 | 21.2 | 14.5 | 6.8 | 4.3 |
| Average night temperature (°C) | -2.3 | -2.4 | 0.9 | 6.7 | 13.5 | 18.5 | 20.1 | 20.1 | 16.6 | 10.7 | 2.7 | 1.6 |
| Absolute minimum temperature (°C) | -13.4 | -15.9 | -10.5 | 0.4 | 5.7 | 11.5 | 16.1 | 13.5 | 12.8 | -1.5 | -8.3 | -5.6 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.3 |
| 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) | 5.0 | 7.6 | 6.8 | 10.0 | 11.7 | 12.5 | 12.4 | 10.4 | 10.4 | 7.2 | 7.7 | 4.8 |
| Precipitation (mm) | 44 | 71 | 82 | 32 | 33 | 25 | 143 | 176 | 10 | 75 | 17 | 77 |
| Sunny days | 19 | 17 | 11 | 17 | 21 | 20 | 16 | 14 | 21 | 15 | 23 | 15 |
| Rainy days | 7 | 10 | 19 | 13 | 10 | 10 | 15 | 17 | 9 | 16 | 7 | 16 |
| Snow days | 5 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Keokuk during the most sunny months:
The largest precipitation sum in Keokuk is at