Average annual temperature is 17.1 °C
Absolute maximum temperature: 45.9 °C
Absolute minimum temperature: -0.7 °C
Number of sunny days: 269 days
Number of rainy days: 96 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) | 18.2 | 20.0 | 19.4 | 32.9 | 36.3 | 42.7 | 45.9 | 44.7 | 36.9 | 35.0 | 26.0 | 19.1 |
| Average daytime temperature (°C) | 13.8 | 14.3 | 14.7 | 23.0 | 28.5 | 33.8 | 40.3 | 38.5 | 32.1 | 27.5 | 19.7 | 15.7 |
| Average temperature (°C) | 8.7 | 7.6 | 9.1 | 14.8 | 19.5 | 23.8 | 28.8 | 28.4 | 23.1 | 18.6 | 12.4 | 10.0 |
| Average night temperature (°C) | 5.5 | 3.2 | 5.1 | 8.4 | 12.2 | 15.3 | 18.7 | 19.7 | 15.8 | 12.0 | 7.2 | 5.9 |
| Absolute minimum temperature (°C) | -0.7 | -0.3 | -0.2 | 2.4 | 6.9 | 12.8 | 12.8 | 14.6 | 11.9 | 2.7 | 0.6 | -0.2 |
| 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 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 5.2 | 7.5 | 7.6 | 11.3 | 12.1 | 13.4 | 13.5 | 12.1 | 11.2 | 9.3 | 8.0 | 5.6 |
| Precipitation (mm) | 220 | 67 | 175 | 9 | 17 | 0 | 0 | 2 | 13 | 6 | 31 | 127 |
| Sunny days | 12 | 16 | 12 | 26 | 22 | 29 | 31 | 30 | 26 | 26 | 22 | 17 |
| Rainy days | 19 | 12 | 19 | 4 | 9 | 1 | 0 | 1 | 4 | 5 | 8 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Grand Island during the most sunny months:
The largest precipitation sum in Grand Island is at