Average annual temperature is 17.7 °C
Absolute maximum temperature: 37.0 °C
Absolute minimum temperature: -3.1 °C
Number of sunny days: 183 days
Number of rainy days: 182 days
Look at detailed online map of Grayton
* Weather data for Grayton 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) | 21.0 | 25.5 | 26.0 | 29.5 | 30.4 | 35.1 | 35.3 | 37.0 | 33.2 | 29.6 | 25.5 | 21.7 |
| Average daytime temperature (°C) | 15.0 | 18.0 | 19.3 | 22.7 | 26.1 | 30.7 | 32.4 | 32.5 | 29.3 | 23.7 | 18.3 | 14.2 |
| Average temperature (°C) | 10.1 | 12.3 | 13.4 | 16.4 | 20.3 | 24.3 | 26.4 | 26.4 | 23.2 | 18.0 | 12.3 | 8.9 |
| Average night temperature (°C) | 6.5 | 8.1 | 8.3 | 11.3 | 15.5 | 18.9 | 21.9 | 21.9 | 18.4 | 13.4 | 7.8 | 4.8 |
| Absolute minimum temperature (°C) | -2.5 | -2.2 | -3.1 | 5.7 | 6.6 | 14.7 | 19.8 | 17.7 | 13.8 | 6.4 | -1.2 | -1.6 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.2 | 11.0 | 12.0 | 13.0 | 13.9 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 5.9 | 6.7 | 8.7 | 9.6 | 10.5 | 11.2 | 11.2 | 10.6 | 10.5 | 8.8 | 7.2 | 6.9 |
| Precipitation (mm) | 169 | 144 | 131 | 154 | 125 | 91 | 101 | 136 | 44 | 27 | 71 | 104 |
| Sunny days | 12 | 11 | 19 | 17 | 9 | 12 | 7 | 12 | 17 | 23 | 21 | 23 |
| Rainy days | 19 | 17 | 12 | 13 | 22 | 18 | 24 | 19 | 13 | 8 | 9 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Grayton is at