Average annual temperature is 8.8 °C
Absolute maximum temperature: 36.8 °C
Absolute minimum temperature: -27.3 °C
Number of sunny days: 204 days
Number of rainy days: 129 days
Number of snow days: 32 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) | 1.5 | 3.8 | 4.1 | 27.6 | 31.8 | 32.2 | 34.4 | 36.8 | 36.4 | 30.3 | 18.5 | 11.0 |
| Average daytime temperature (°C) | -5.0 | -2.9 | 0.1 | 10.7 | 23.6 | 28.9 | 28.2 | 28.3 | 26.0 | 15.0 | 8.4 | 4.6 |
| Average temperature (°C) | -8.1 | -8.3 | -4.3 | 5.3 | 17.2 | 23.0 | 22.5 | 22.6 | 20.2 | 10.4 | 3.0 | 0.4 |
| Average night temperature (°C) | -11.1 | -12.7 | -8.1 | 0.8 | 11.2 | 17.2 | 16.9 | 17.8 | 15.5 | 6.5 | -1.0 | -2.7 |
| Absolute minimum temperature (°C) | -25.4 | -27.3 | -16.4 | -9.7 | 0.4 | 10.5 | 12.3 | 11.8 | 8.0 | -5.7 | -12.3 | -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 | 9.0 |
| Daylight mean duration (h) | 9.2 | 10.4 | 11.9 | 13.5 | 14.8 | 15.5 | 15.2 | 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) | 4.3 | 7.3 | 6.7 | 8.3 | 11.4 | 13.4 | 12.9 | 11.4 | 10.1 | 7.7 | 6.7 | 4.8 |
| Precipitation (mm) | 47 | 49 | 54 | 127 | 68 | 62 | 58 | 58 | 111 | 100 | 8 | 69 |
| Sunny days | 20 | 17 | 16 | 13 | 19 | 16 | 17 | 16 | 14 | 15 | 22 | 19 |
| Rainy days | 5 | 6 | 4 | 15 | 12 | 14 | 14 | 15 | 16 | 14 | 7 | 7 |
| Snow days | 6 | 5 | 11 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 5 |
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