Average annual temperature is 5.9 °C
Absolute maximum temperature: 28.2 °C
Absolute minimum temperature: -26.8 °C
Number of sunny days: 177 days
Number of rainy days: 136 days
Number of snow days: 52 days
Look at detailed online map of Grand Marais
* Weather data for Grand Marais 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) | 2.0 | 4.9 | 3.4 | 13.7 | 23.5 | 24.8 | 23.8 | 27.5 | 28.2 | 22.6 | 12.8 | 7.2 |
| Average daytime temperature (°C) | -3.6 | -3.9 | -0.6 | 4.2 | 14.5 | 18.9 | 19.8 | 20.9 | 18.8 | 11.1 | 4.0 | 2.5 |
| Average temperature (°C) | -6.0 | -7.6 | -3.5 | 1.3 | 10.4 | 15.5 | 16.8 | 17.7 | 16.0 | 8.6 | 1.1 | 0.1 |
| Average night temperature (°C) | -8.1 | -10.7 | -6.3 | -1.1 | 7.0 | 12.5 | 14.2 | 15.2 | 13.9 | 6.7 | -1.2 | -1.8 |
| Absolute minimum temperature (°C) | -23.3 | -26.8 | -12.0 | -7.8 | -1.4 | 7.4 | 10.5 | 11.0 | 9.7 | -3.3 | -11.8 | -8.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 15.0 | 16.0 | 15.0 | 14.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.9 | 10.2 | 11.9 | 13.6 | 15.2 | 15.9 | 15.6 | 14.2 | 12.6 | 10.9 | 9.3 | 8.5 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 3.3 | 6.7 | 7.2 | 7.0 | 11.8 | 12.0 | 12.4 | 10.4 | 8.4 | 5.7 | 5.1 | 3.3 |
| Precipitation (mm) | 32 | 50 | 45 | 155 | 20 | 63 | 56 | 53 | 49 | 47 | 42 | 56 |
| Sunny days | 19 | 12 | 18 | 10 | 21 | 20 | 9 | 14 | 12 | 12 | 16 | 14 |
| Rainy days | 4 | 5 | 1 | 12 | 10 | 10 | 22 | 17 | 18 | 18 | 8 | 11 |
| Snow days | 8 | 11 | 12 | 8 | 0 | 0 | 0 | 0 | 0 | 1 | 6 | 6 |
The best time to visit Grand Marais during the most sunny months:
Months with the longest average daylight duration in Grand Marais:
The largest precipitation sum in Grand Marais is at