Average annual temperature is 7.6 °C
Absolute maximum temperature: 36.1 °C
Absolute minimum temperature: -32.5 °C
Number of sunny days: 222 days
Number of rainy days: 102 days
Number of snow days: 41 days
Look at detailed online map of Sioux County
* Weather data for Sioux 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) | 2.8 | 8.4 | 1.4 | 26.0 | 30.0 | 33.0 | 36.1 | 33.6 | 35.1 | 28.9 | 12.9 | 13.7 |
| Average daytime temperature (°C) | -3.2 | -0.6 | -3.8 | 8.9 | 23.1 | 27.4 | 28.5 | 28.3 | 23.8 | 13.3 | 6.8 | 3.9 |
| Average temperature (°C) | -7.5 | -6.4 | -8.2 | 2.8 | 16.4 | 21.7 | 22.0 | 22.0 | 18.0 | 8.0 | 1.7 | -0.6 |
| Average night temperature (°C) | -10.7 | -10.9 | -12.0 | -2.0 | 10.5 | 16.2 | 16.3 | 17.0 | 13.1 | 3.8 | -2.3 | -3.8 |
| Absolute minimum temperature (°C) | -26.7 | -32.5 | -22.2 | -15.1 | -1.7 | 10.5 | 9.0 | 12.6 | 8.5 | -14.7 | -12.7 | -9.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 |
| Daylight mean duration (h) | 9.1 | 10.3 | 11.9 | 13.6 | 15.0 | 15.7 | 15.4 | 14.1 | 12.6 | 10.9 | 9.5 | 8.7 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 3.8 | 7.6 | 7.5 | 9.8 | 11.6 | 12.4 | 13.3 | 10.9 | 9.8 | 7.8 | 7.6 | 5.4 |
| Precipitation (mm) | 10 | 19 | 50 | 29 | 89 | 139 | 54 | 79 | 117 | 23 | 2 | 27 |
| Sunny days | 24 | 18 | 14 | 17 | 15 | 13 | 18 | 18 | 19 | 20 | 25 | 21 |
| Rainy days | 3 | 1 | 3 | 8 | 16 | 17 | 13 | 13 | 11 | 9 | 3 | 5 |
| Snow days | 4 | 9 | 14 | 5 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 5 |
The best time to visit Sioux County during the most sunny months:
Months with the longest average daylight duration in Sioux County:
The largest precipitation sum in Sioux County is at