Average annual temperature is 11.7 °C
Absolute maximum temperature: 35.8 °C
Absolute minimum temperature: -20.1 °C
Number of sunny days: 225 days
Number of rainy days: 122 days
Number of snow days: 18 days
Look at detailed online map of Pottawattamie County
* Weather data for Pottawattamie 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) | 9.3 | 12.7 | 20.8 | 29.1 | 30.1 | 32.7 | 35.1 | 35.8 | 33.4 | 32.0 | 18.7 | 14.4 |
| Average daytime temperature (°C) | 1.2 | 5.3 | 8.6 | 18.3 | 25.1 | 29.5 | 28.7 | 28.6 | 27.1 | 18.3 | 11.3 | 6.2 |
| Average temperature (°C) | -3.0 | -1.3 | 2.0 | 10.9 | 18.5 | 23.5 | 23.2 | 23.6 | 21.3 | 13.1 | 5.6 | 1.8 |
| Average night temperature (°C) | -6.2 | -5.8 | -2.5 | 5.3 | 12.7 | 17.7 | 18.4 | 19.3 | 16.2 | 8.7 | 0.9 | -1.6 |
| Absolute minimum temperature (°C) | -19.1 | -20.1 | -12.0 | -5.2 | 2.3 | 9.6 | 11.8 | 12.2 | 10.3 | -5.5 | -8.5 | -5.7 |
| 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 | 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 | 9.2 |
| 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 | 8.1 | 9.3 | 11.7 | 13.1 | 11.6 | 11.5 | 10.3 | 7.8 | 7.0 | 5.1 |
| Precipitation (mm) | 36 | 68 | 44 | 27 | 66 | 61 | 80 | 85 | 38 | 36 | 7 | 49 |
| Sunny days | 18 | 18 | 21 | 20 | 15 | 15 | 18 | 18 | 20 | 15 | 25 | 22 |
| Rainy days | 5 | 8 | 9 | 9 | 16 | 15 | 13 | 13 | 10 | 15 | 3 | 6 |
| Snow days | 8 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 3 |
The best time to visit Pottawattamie County during the most sunny months:
The largest precipitation sum in Pottawattamie County is at