Average annual temperature is 11.6 °C
Absolute maximum temperature: 34.6 °C
Absolute minimum temperature: -18.9 °C
Number of sunny days: 221 days
Number of rainy days: 126 days
Number of snow days: 18 days
Look at detailed online map of Cass County
* Weather data for Cass 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) | 10.6 | 14.2 | 22.4 | 27.8 | 29.3 | 32.0 | 33.7 | 34.6 | 33.1 | 30.8 | 18.4 | 13.9 |
| Average daytime temperature (°C) | 1.4 | 5.3 | 8.6 | 18.0 | 24.8 | 29.1 | 28.2 | 28.2 | 26.5 | 17.9 | 10.9 | 6.6 |
| Average temperature (°C) | -2.8 | -1.1 | 2.1 | 10.6 | 18.2 | 23.2 | 23.0 | 23.4 | 20.8 | 13.0 | 5.5 | 2.1 |
| Average night temperature (°C) | -5.8 | -5.6 | -2.2 | 5.0 | 12.4 | 17.3 | 18.4 | 19.3 | 15.9 | 8.7 | 1.1 | -1.0 |
| Absolute minimum temperature (°C) | -18.9 | -18.9 | -12.7 | -5.3 | 2.2 | 9.2 | 12.3 | 12.6 | 10.3 | -5.2 | -9.3 | -5.0 |
| 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 | 7.5 | 9.3 | 11.4 | 12.4 | 11.5 | 11.3 | 10.5 | 7.8 | 7.1 | 4.9 |
| Precipitation (mm) | 42 | 60 | 36 | 42 | 61 | 66 | 114 | 88 | 29 | 36 | 7 | 47 |
| Sunny days | 18 | 18 | 20 | 16 | 16 | 16 | 18 | 17 | 22 | 15 | 23 | 22 |
| Rainy days | 5 | 8 | 10 | 13 | 15 | 14 | 13 | 14 | 8 | 15 | 5 | 6 |
| Snow days | 8 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 3 |
The best time to visit Cass County during the most sunny months:
The largest precipitation sum in Cass County is at