Average annual temperature is 12.5 °C
Absolute maximum temperature: 35.7 °C
Absolute minimum temperature: -18.3 °C
Number of sunny days: 208 days
Number of rainy days: 144 days
Number of snow days: 13 days
Look at detailed online map of Wapello County
* Weather data for Wapello 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) | 14.3 | 15.4 | 23.1 | 28.6 | 31.9 | 33.3 | 34.7 | 35.7 | 34.1 | 31.6 | 19.8 | 15.3 |
| Average daytime temperature (°C) | 3.3 | 6.6 | 9.2 | 18.2 | 25.2 | 29.9 | 29.1 | 28.4 | 26.8 | 18.9 | 11.6 | 7.7 |
| Average temperature (°C) | -1.1 | 0.3 | 3.7 | 11.3 | 18.8 | 23.8 | 23.9 | 23.7 | 20.9 | 14.1 | 6.2 | 3.5 |
| Average night temperature (°C) | -4.1 | -4.3 | -0.5 | 5.7 | 12.5 | 18.1 | 19.2 | 19.7 | 16.1 | 10.1 | 1.8 | 0.5 |
| Absolute minimum temperature (°C) | -15.8 | -18.3 | -12.0 | -2.2 | 3.4 | 10.2 | 14.1 | 12.8 | 10.7 | -2.6 | -10.0 | -6.1 |
| 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) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 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) | 4.8 | 7.4 | 6.9 | 9.5 | 11.7 | 12.2 | 12.4 | 10.6 | 10.2 | 7.5 | 7.2 | 4.9 |
| Precipitation (mm) | 49 | 92 | 70 | 40 | 49 | 30 | 170 | 111 | 58 | 62 | 16 | 73 |
| Sunny days | 17 | 17 | 14 | 17 | 19 | 17 | 16 | 17 | 17 | 17 | 25 | 15 |
| Rainy days | 8 | 8 | 16 | 12 | 12 | 13 | 15 | 14 | 13 | 14 | 4 | 15 |
| Snow days | 6 | 3 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The best time to visit Wapello County during the most sunny months:
The largest precipitation sum in Wapello County is at