Average annual temperature is 9.1 °C
Absolute maximum temperature: 31.7 °C
Absolute minimum temperature: -31.4 °C
Number of sunny days: 129 days
Number of rainy days: 202 days
Number of snow days: 34 days
Look at detailed online map of Grand Isle Station
* Weather data for Grand Isle Station 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) | 6.5 | 11.1 | 10.5 | 27.5 | 28.9 | 31.7 | 31.2 | 27.5 | 29.8 | 27.2 | 13.7 | 9.9 |
| Average daytime temperature (°C) | 1.3 | 1.6 | 4.1 | 14.7 | 19.3 | 23.1 | 26.8 | 23.8 | 22.4 | 16.6 | 6.5 | 3.9 |
| Average temperature (°C) | -1.9 | -4.3 | -0.1 | 8.4 | 13.4 | 18.2 | 22.0 | 19.4 | 17.7 | 12.6 | 2.4 | 0.7 |
| Average night temperature (°C) | -5.2 | -9.3 | -4.1 | 3.6 | 7.7 | 13.5 | 17.9 | 15.7 | 13.7 | 9.1 | -0.7 | -1.9 |
| Absolute minimum temperature (°C) | -11.2 | -31.4 | -11.4 | -5.2 | 1.1 | 8.2 | 13.0 | 10.5 | 8.3 | 0.0 | -6.4 | -10.4 |
| 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) | 9.3 | 10.4 | 11.9 | 13.5 | 14.8 | 15.5 | 15.2 | 14.0 | 12.5 | 11.0 | 9.6 | 8.9 |
| Daylight minimum duration (h) | 8.0 | 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) | 2.8 | 5.8 | 5.8 | 7.7 | 11.4 | 10.3 | 10.6 | 9.9 | 9.3 | 6.1 | 5.7 | 3.2 |
| Precipitation (mm) | 97 | 58 | 76 | 100 | 81 | 144 | 227 | 164 | 69 | 107 | 57 | 124 |
| Sunny days | 8 | 10 | 10 | 14 | 17 | 9 | 0 | 7 | 19 | 11 | 13 | 11 |
| Rainy days | 12 | 12 | 15 | 16 | 14 | 21 | 31 | 24 | 11 | 20 | 12 | 14 |
| Snow days | 11 | 6 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 6 |
The best time to visit Grand Isle Station during the most sunny months:
Months with the longest average daylight duration in Grand Isle Station:
The largest precipitation sum in Grand Isle Station is at