Average annual temperature is 12.9 °C
Absolute maximum temperature: 34.2 °C
Absolute minimum temperature: -11.2 °C
Number of sunny days: 179 days
Number of rainy days: 181 days
Number of snow days: 5 days
Look at detailed online map of Grantley
* Weather data for Grantley 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) | 17.2 | 19.9 | 20.9 | 28.6 | 27.8 | 33.0 | 34.1 | 31.6 | 34.2 | 26.9 | 21.6 | 16.6 |
| Average daytime temperature (°C) | 8.0 | 9.7 | 10.7 | 19.4 | 21.8 | 26.1 | 29.8 | 28.3 | 24.1 | 19.0 | 11.3 | 8.8 |
| Average temperature (°C) | 4.4 | 4.5 | 5.2 | 13.3 | 15.4 | 19.9 | 24.4 | 23.0 | 19.2 | 14.0 | 6.2 | 4.8 |
| Average night temperature (°C) | 1.5 | 0.1 | 0.6 | 8.1 | 9.3 | 14.8 | 19.8 | 18.5 | 15.0 | 9.9 | 2.1 | 1.6 |
| Absolute minimum temperature (°C) | -4.7 | -11.2 | -6.3 | 0.8 | 2.9 | 10.3 | 16.9 | 14.1 | 9.0 | 2.7 | -6.4 | -4.9 |
| 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 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 15.0 | 14.7 | 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) | 4.7 | 6.9 | 7.4 | 9.2 | 11.4 | 10.6 | 12.2 | 10.7 | 8.3 | 8.4 | 7.7 | 4.7 |
| Precipitation (mm) | 75 | 48 | 61 | 114 | 22 | 128 | 113 | 60 | 165 | 49 | 60 | 137 |
| Sunny days | 12 | 15 | 13 | 15 | 20 | 13 | 8 | 13 | 15 | 18 | 22 | 15 |
| Rainy days | 19 | 11 | 17 | 15 | 11 | 17 | 23 | 18 | 15 | 13 | 8 | 14 |
| Snow days | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Grantley during the most sunny months:
The largest precipitation sum in Grantley is at