Average annual temperature is 8.7 °C
Absolute maximum temperature: 37.6 °C
Absolute minimum temperature: -26.8 °C
Number of sunny days: 221 days
Number of rainy days: 116 days
Number of snow days: 28 days
Look at detailed online map of Township of Grafton
* Weather data for Township of Grafton 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) | 1.7 | 3.5 | 6.2 | 26.4 | 31.4 | 35.6 | 35.6 | 37.6 | 36.4 | 30.8 | 16.9 | 10.2 |
| Average daytime temperature (°C) | -5.4 | -2.7 | -0.3 | 12.7 | 23.8 | 29.3 | 28.2 | 28.8 | 25.6 | 14.7 | 8.4 | 3.9 |
| Average temperature (°C) | -8.4 | -7.5 | -5.1 | 6.1 | 17.5 | 23.4 | 22.3 | 23.0 | 19.9 | 9.8 | 2.9 | -0.5 |
| Average night temperature (°C) | -11.3 | -11.5 | -8.6 | 0.9 | 11.6 | 17.7 | 17.2 | 18.2 | 15.3 | 5.9 | -1.0 | -3.6 |
| Absolute minimum temperature (°C) | -26.8 | -26.8 | -16.7 | -12.0 | 0.6 | 10.6 | 12.6 | 13.4 | 9.6 | -7.8 | -10.2 | -9.3 |
| 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 | 9.0 |
| Daylight mean duration (h) | 9.3 | 10.5 | 11.9 | 13.5 | 14.8 | 15.4 | 15.1 | 14.0 | 12.5 | 11.0 | 9.6 | 8.9 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 3.7 | 7.1 | 7.1 | 9.2 | 11.9 | 12.8 | 13.0 | 11.6 | 9.9 | 7.3 | 7.5 | 5.1 |
| Precipitation (mm) | 38 | 30 | 40 | 38 | 67 | 55 | 56 | 86 | 51 | 69 | 2 | 49 |
| Sunny days | 19 | 20 | 17 | 15 | 16 | 15 | 17 | 20 | 16 | 18 | 25 | 23 |
| Rainy days | 5 | 4 | 4 | 11 | 15 | 15 | 14 | 11 | 14 | 12 | 3 | 8 |
| Snow days | 7 | 4 | 10 | 4 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 |
The best time to visit Township of Grafton during the most sunny months:
Months with the longest average daylight duration in Township of Grafton:
The largest precipitation sum in Township of Grafton is at