Average annual temperature is 14.7 °C
Absolute maximum temperature: 37.5 °C
Absolute minimum temperature: -8.0 °C
Number of sunny days: 179 days
Number of rainy days: 185 days
Number of snow days: 1 day
Look at detailed online map of Grundy
* Weather data for Grundy 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) | 20.0 | 23.9 | 24.8 | 28.5 | 28.8 | 32.3 | 35.8 | 37.5 | 33.7 | 29.5 | 26.5 | 18.3 |
| Average daytime temperature (°C) | 10.9 | 14.2 | 14.8 | 20.2 | 24.8 | 27.8 | 31.0 | 29.7 | 28.0 | 21.4 | 15.5 | 11.5 |
| Average temperature (°C) | 6.1 | 8.0 | 8.4 | 13.4 | 18.0 | 21.3 | 24.7 | 23.9 | 21.2 | 15.5 | 8.9 | 6.1 |
| Average night temperature (°C) | 2.6 | 3.5 | 3.6 | 7.9 | 12.5 | 15.6 | 19.8 | 18.9 | 15.6 | 10.6 | 4.3 | 2.3 |
| Absolute minimum temperature (°C) | -5.5 | -6.5 | -8.0 | 0.4 | 3.7 | 10.2 | 16.2 | 13.5 | 11.6 | 3.2 | -5.1 | -6.1 |
| 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 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 10.2 | 9.7 |
| 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) | 5.0 | 6.6 | 8.1 | 9.5 | 10.3 | 10.9 | 11.4 | 10.8 | 10.6 | 7.8 | 7.5 | 5.7 |
| Precipitation (mm) | 157 | 121 | 104 | 75 | 106 | 162 | 75 | 70 | 49 | 37 | 40 | 94 |
| Sunny days | 11 | 13 | 19 | 18 | 14 | 15 | 8 | 12 | 15 | 18 | 21 | 15 |
| Rainy days | 20 | 14 | 12 | 12 | 17 | 15 | 23 | 19 | 15 | 13 | 9 | 16 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Grundy during the most sunny months:
The largest precipitation sum in Grundy is at