Average annual temperature is 5.6 °C
Absolute maximum temperature: 32.5 °C
Absolute minimum temperature: -27.5 °C
Number of sunny days: 202 days
Number of rainy days: 114 days
Number of snow days: 49 days
Look at detailed online map of Grand Harbor
* Weather data for Grand Harbor 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) | 0.6 | 2.4 | 0.3 | 11.5 | 28.1 | 32.5 | 31.3 | 30.8 | 31.1 | 27.5 | 9.4 | 8.7 |
| Average daytime temperature (°C) | -8.0 | -5.7 | -6.0 | 3.2 | 22.0 | 26.4 | 25.1 | 25.0 | 22.3 | 11.3 | 3.2 | 1.1 |
| Average temperature (°C) | -11.0 | -10.8 | -9.9 | -0.7 | 15.3 | 21.5 | 19.9 | 20.4 | 17.3 | 7.1 | -0.4 | -2.7 |
| Average night temperature (°C) | -13.6 | -14.9 | -13.0 | -4.2 | 9.5 | 17.1 | 15.7 | 16.7 | 13.3 | 3.9 | -3.3 | -5.5 |
| Absolute minimum temperature (°C) | -26.9 | -27.5 | -18.9 | -12.6 | -1.6 | 11.1 | 9.9 | 11.7 | 7.6 | -10.7 | -11.2 | -12.2 |
| 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 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.9 | 10.2 | 11.9 | 13.7 | 15.2 | 16.0 | 15.6 | 14.3 | 12.6 | 10.8 | 9.3 | 8.4 |
| 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) | 3.1 | 7.1 | 8.0 | 8.0 | 11.8 | 12.2 | 13.1 | 9.9 | 9.2 | 6.6 | 5.6 | 5.6 |
| Precipitation (mm) | 8 | 9 | 30 | 63 | 42 | 78 | 35 | 83 | 70 | 61 | 5 | 14 |
| Sunny days | 22 | 16 | 16 | 15 | 17 | 10 | 17 | 11 | 15 | 18 | 20 | 25 |
| Rainy days | 2 | 1 | 4 | 9 | 14 | 20 | 14 | 20 | 15 | 9 | 3 | 3 |
| Snow days | 7 | 11 | 11 | 6 | 0 | 0 | 0 | 0 | 0 | 4 | 7 | 3 |
The best time to visit Grand Harbor during the most sunny months:
Months with the longest average daylight duration in Grand Harbor:
The largest precipitation sum in Grand Harbor is at