Average annual temperature is 15.5 °C
Absolute maximum temperature: 36.7 °C
Absolute minimum temperature: -4.9 °C
Number of sunny days: 198 days
Number of rainy days: 166 days
Number of snow days: 1 day
Look at detailed online map of Grantsboro
* Weather data for Grantsboro 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) | 19.0 | 25.4 | 24.1 | 28.0 | 28.2 | 32.4 | 36.0 | 36.7 | 33.5 | 29.4 | 25.7 | 18.0 |
| Average daytime temperature (°C) | 11.6 | 15.0 | 15.9 | 20.5 | 25.0 | 28.3 | 31.5 | 30.0 | 28.4 | 22.4 | 16.5 | 12.1 |
| Average temperature (°C) | 6.7 | 9.1 | 9.9 | 14.1 | 18.6 | 21.9 | 25.4 | 24.5 | 21.9 | 16.2 | 10.0 | 6.7 |
| Average night temperature (°C) | 3.1 | 4.9 | 5.4 | 9.0 | 13.6 | 16.7 | 20.6 | 20.3 | 17.0 | 11.4 | 5.4 | 2.9 |
| Absolute minimum temperature (°C) | -3.6 | -4.6 | -4.9 | 3.3 | 5.5 | 12.3 | 16.4 | 14.8 | 13.5 | 6.5 | -3.0 | -4.1 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.3 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.0 | 6.1 | 8.5 | 9.4 | 10.5 | 10.8 | 10.7 | 9.9 | 10.8 | 8.4 | 7.6 | 6.2 |
| Precipitation (mm) | 126 | 145 | 121 | 79 | 76 | 64 | 60 | 92 | 36 | 17 | 42 | 110 |
| Sunny days | 12 | 15 | 21 | 18 | 13 | 16 | 10 | 14 | 19 | 22 | 20 | 18 |
| Rainy days | 18 | 13 | 10 | 12 | 18 | 14 | 21 | 17 | 11 | 9 | 10 | 13 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Grantsboro is at