Average annual temperature is 10.4 °C
Absolute maximum temperature: 31.0 °C
Absolute minimum temperature: -18.5 °C
Number of sunny days: 135 days
Number of rainy days: 201 days
Number of snow days: 29 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) | 8.0 | 14.1 | 11.5 | 27.6 | 30.5 | 30.8 | 31.0 | 29.7 | 30.2 | 27.9 | 14.9 | 14.0 |
| Average daytime temperature (°C) | 3.1 | 4.8 | 5.5 | 15.1 | 19.5 | 24.2 | 26.9 | 24.4 | 22.9 | 16.2 | 8.4 | 6.8 |
| Average temperature (°C) | 0.2 | -0.2 | 1.3 | 8.9 | 13.5 | 19.2 | 22.3 | 20.1 | 18.1 | 12.6 | 4.7 | 3.9 |
| Average night temperature (°C) | -2.1 | -4.0 | -1.7 | 4.1 | 7.9 | 14.6 | 18.3 | 16.6 | 14.3 | 9.7 | 1.4 | 1.3 |
| Absolute minimum temperature (°C) | -9.5 | -18.5 | -8.2 | -4.6 | 2.6 | 10.8 | 14.5 | 11.6 | 9.0 | -1.5 | -5.4 | -4.5 |
| 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 | 9.0 |
| Daylight mean duration (h) | 9.4 | 10.5 | 11.9 | 13.4 | 14.7 | 15.3 | 15.0 | 13.9 | 12.5 | 11.0 | 9.7 | 9.1 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 2.2 | 5.8 | 5.8 | 8.3 | 11.4 | 10.5 | 11.2 | 9.8 | 9.2 | 5.2 | 5.1 | 2.8 |
| Precipitation (mm) | 118 | 79 | 100 | 128 | 45 | 106 | 125 | 136 | 21 | 81 | 54 | 101 |
| Sunny days | 7 | 11 | 10 | 10 | 20 | 12 | 6 | 10 | 19 | 9 | 11 | 10 |
| Rainy days | 16 | 10 | 12 | 20 | 11 | 18 | 25 | 21 | 11 | 22 | 17 | 18 |
| Snow days | 8 | 7 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 |
The best time to visit Grand Island during the most sunny months:
Months with the longest average daylight duration in Grand Island:
The largest precipitation sum in Grand Island is at