Average annual temperature is 11.5 °C
Absolute maximum temperature: 36.5 °C
Absolute minimum temperature: -22.6 °C
Number of sunny days: 205 days
Number of rainy days: 137 days
Number of snow days: 23 days
Look at detailed online map of Iowa County
* Weather data for Iowa 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) | 12.5 | 12.1 | 22.5 | 25.9 | 31.1 | 32.8 | 34.1 | 36.5 | 33.7 | 30.4 | 17.8 | 14.0 |
| Average daytime temperature (°C) | 1.7 | 4.7 | 8.1 | 17.1 | 24.6 | 29.0 | 28.4 | 28.2 | 26.4 | 17.7 | 10.1 | 6.4 |
| Average temperature (°C) | -2.5 | -1.2 | 2.5 | 10.2 | 17.9 | 22.9 | 23.2 | 23.2 | 20.4 | 13.0 | 5.1 | 2.3 |
| Average night temperature (°C) | -5.5 | -5.8 | -1.6 | 4.7 | 11.7 | 17.0 | 17.9 | 18.6 | 15.6 | 9.0 | 0.9 | -0.6 |
| Absolute minimum temperature (°C) | -22.6 | -21.4 | -12.8 | -3.4 | 3.2 | 9.2 | 12.3 | 12.1 | 10.2 | -4.0 | -12.9 | -7.4 |
| 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) | 9.5 | 10.6 | 11.9 | 13.3 | 14.5 | 15.2 | 14.9 | 13.8 | 12.5 | 11.1 | 9.9 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.6 | 7.2 | 7.0 | 9.4 | 11.7 | 12.4 | 12.3 | 11.4 | 9.8 | 7.3 | 7.2 | 4.3 |
| Precipitation (mm) | 49 | 81 | 83 | 42 | 94 | 51 | 49 | 67 | 82 | 81 | 17 | 61 |
| Sunny days | 17 | 15 | 12 | 18 | 23 | 17 | 16 | 19 | 16 | 15 | 21 | 16 |
| Rainy days | 6 | 10 | 14 | 11 | 8 | 13 | 15 | 12 | 14 | 15 | 7 | 12 |
| Snow days | 8 | 3 | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 3 |
The best time to visit Iowa County during the most sunny months:
The largest precipitation sum in Iowa County is at