Average annual temperature is 10.9 °C
Absolute maximum temperature: 37.1 °C
Absolute minimum temperature: -5.5 °C
Number of sunny days: 169 days
Number of rainy days: 195 days
Number of snow days: 1 day
Look at detailed online map of Grand Mound
* Weather data for Grand Mound 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) | 13.6 | 14.5 | 18.0 | 25.6 | 31.9 | 30.8 | 33.2 | 37.1 | 31.3 | 26.1 | 16.1 | 13.9 |
| Average daytime temperature (°C) | 9.1 | 8.4 | 11.0 | 13.0 | 22.4 | 23.4 | 27.8 | 28.8 | 22.7 | 17.0 | 10.5 | 9.9 |
| Average temperature (°C) | 5.3 | 3.9 | 5.1 | 7.7 | 14.8 | 15.5 | 18.9 | 20.2 | 15.4 | 11.1 | 6.3 | 6.5 |
| Average night temperature (°C) | 2.6 | 1.1 | 1.5 | 4.1 | 9.2 | 9.7 | 12.0 | 14.2 | 10.7 | 7.3 | 3.2 | 4.0 |
| Absolute minimum temperature (°C) | -5.5 | -5.4 | -2.7 | -1.0 | 3.9 | 4.3 | 9.5 | 9.1 | 6.3 | -2.3 | -3.6 | -0.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 |
| Daylight mean duration (h) | 9.0 | 10.3 | 11.9 | 13.6 | 15.0 | 15.8 | 15.4 | 14.2 | 12.6 | 10.9 | 9.4 | 8.6 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 3.0 | 4.8 | 6.7 | 6.0 | 10.9 | 11.5 | 12.9 | 11.3 | 8.1 | 5.9 | 4.9 | 2.9 |
| Precipitation (mm) | 120 | 102 | 116 | 156 | 40 | 20 | 5 | 21 | 61 | 100 | 164 | 246 |
| Sunny days | 7 | 10 | 7 | 5 | 21 | 20 | 27 | 22 | 15 | 14 | 13 | 8 |
| Rainy days | 24 | 17 | 24 | 25 | 10 | 10 | 4 | 9 | 15 | 17 | 17 | 23 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Grand Mound during the most sunny months:
Months with the longest average daylight duration in Grand Mound:
The largest precipitation sum in Grand Mound is at