Average annual temperature is 11.6 °C
Absolute maximum temperature: 38.5 °C
Absolute minimum temperature: -22.3 °C
Number of sunny days: 225 days
Number of rainy days: 117 days
Number of snow days: 23 days
Look at detailed online map of Grand Island
* Weather data for Grand Island 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) | 10.8 | 14.9 | 20.9 | 28.7 | 30.2 | 33.3 | 36.1 | 38.5 | 35.5 | 31.5 | 20.4 | 12.3 |
| Average daytime temperature (°C) | 0.4 | 5.3 | 9.2 | 18.7 | 25.4 | 28.9 | 29.2 | 30.8 | 28.3 | 18.5 | 12.1 | 5.5 |
| Average temperature (°C) | -3.9 | -1.8 | 2.0 | 11.1 | 18.9 | 22.8 | 23.6 | 24.6 | 21.7 | 12.5 | 6.0 | 1.0 |
| Average night temperature (°C) | -7.5 | -6.2 | -3.3 | 5.0 | 13.0 | 17.2 | 18.7 | 19.6 | 16.0 | 7.7 | 1.2 | -2.6 |
| Absolute minimum temperature (°C) | -22.3 | -20.0 | -10.2 | -4.9 | 2.5 | 10.3 | 13.1 | 12.7 | 9.1 | -7.3 | -5.8 | -8.0 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| 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) | 5.5 | 8.0 | 8.7 | 10.8 | 11.3 | 12.4 | 12.0 | 11.4 | 10.6 | 7.8 | 7.2 | 4.9 |
| Precipitation (mm) | 52 | 33 | 32 | 17 | 75 | 70 | 79 | 18 | 35 | 61 | 22 | 57 |
| Sunny days | 19 | 19 | 22 | 22 | 11 | 15 | 12 | 23 | 22 | 18 | 23 | 19 |
| Rainy days | 6 | 4 | 7 | 6 | 20 | 15 | 19 | 8 | 8 | 12 | 4 | 8 |
| Snow days | 6 | 5 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 4 |
The best time to visit Grand Island during the most sunny months:
The largest precipitation sum in Grand Island is at