Average annual temperature is 13.4 °C
Absolute maximum temperature: 39.9 °C
Absolute minimum temperature: -20.6 °C
Number of sunny days: 223 days
Number of rainy days: 124 days
Number of snow days: 18 days
Look at detailed online map of Township of Sumner
* Weather data for Township of Sumner 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) | 13.4 | 17.0 | 24.3 | 29.9 | 31.5 | 36.1 | 38.1 | 39.9 | 38.3 | 31.6 | 20.9 | 16.0 |
| Average daytime temperature (°C) | 2.9 | 8.0 | 11.7 | 20.8 | 25.5 | 30.4 | 31.9 | 33.2 | 29.8 | 21.4 | 14.6 | 7.8 |
| Average temperature (°C) | -2.3 | 0.0 | 4.6 | 13.0 | 19.3 | 23.8 | 25.8 | 26.7 | 23.1 | 14.8 | 7.9 | 3.0 |
| Average night temperature (°C) | -5.8 | -5.2 | -0.6 | 6.7 | 13.9 | 18.1 | 20.5 | 20.9 | 17.2 | 9.3 | 2.7 | -0.9 |
| Absolute minimum temperature (°C) | -20.6 | -19.1 | -7.4 | -3.5 | 3.0 | 13.9 | 14.6 | 14.4 | 10.4 | -6.2 | -4.8 | -5.6 |
| 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 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.5 | 11.2 | 10.0 | 9.4 |
| 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) | 6.4 | 8.4 | 8.5 | 10.3 | 10.6 | 12.2 | 11.9 | 12.1 | 10.4 | 8.7 | 7.6 | 5.1 |
| Precipitation (mm) | 42 | 38 | 18 | 6 | 91 | 37 | 91 | 68 | 23 | 28 | 26 | 61 |
| Sunny days | 21 | 23 | 21 | 21 | 13 | 15 | 11 | 18 | 21 | 21 | 23 | 15 |
| Rainy days | 6 | 4 | 6 | 8 | 18 | 15 | 20 | 13 | 9 | 9 | 4 | 12 |
| Snow days | 4 | 1 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 4 |
The best time to visit Township of Sumner during the most sunny months:
The largest precipitation sum in Township of Sumner is at