Average annual temperature is 13.7 °C
Absolute maximum temperature: 36.6 °C
Absolute minimum temperature: -10.2 °C
Number of sunny days: 174 days
Number of rainy days: 187 days
Number of snow days: 4 days
Look at detailed online map of Graystone
* Weather data for Graystone 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 | 21.6 | 22.3 | 29.8 | 29.1 | 34.3 | 36.1 | 33.6 | 36.6 | 27.5 | 22.8 | 17.4 |
| Average daytime temperature (°C) | 9.0 | 10.7 | 11.8 | 20.3 | 22.6 | 27.0 | 31.2 | 29.6 | 25.7 | 20.3 | 12.5 | 9.6 |
| Average temperature (°C) | 5.2 | 5.4 | 6.1 | 14.0 | 16.2 | 20.6 | 25.0 | 24.0 | 20.4 | 14.8 | 7.2 | 5.5 |
| Average night temperature (°C) | 2.2 | 1.0 | 1.5 | 8.8 | 10.3 | 15.3 | 20.6 | 19.4 | 16.1 | 10.5 | 3.2 | 2.2 |
| Absolute minimum temperature (°C) | -3.1 | -10.2 | -5.1 | 1.5 | 4.0 | 11.1 | 18.2 | 15.6 | 10.8 | 4.5 | -5.4 | -3.1 |
| 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 | 13.3 | 14.4 | 14.9 | 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) | 4.9 | 6.9 | 7.5 | 9.3 | 11.0 | 10.6 | 11.8 | 10.5 | 8.4 | 8.6 | 7.7 | 4.7 |
| Precipitation (mm) | 88 | 54 | 71 | 130 | 25 | 127 | 103 | 55 | 160 | 51 | 68 | 147 |
| Sunny days | 13 | 17 | 13 | 16 | 17 | 10 | 7 | 11 | 15 | 18 | 23 | 14 |
| Rainy days | 18 | 9 | 17 | 14 | 14 | 20 | 24 | 20 | 15 | 13 | 7 | 16 |
| Snow days | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Graystone during the most sunny months:
The largest precipitation sum in Graystone is at