Average annual temperature is 10.6 °C
Absolute maximum temperature: 37.7 °C
Absolute minimum temperature: -20.6 °C
Number of sunny days: 178 days
Number of rainy days: 170 days
Number of snow days: 17 days
Look at detailed online map of Great Lakes
* Weather data for Great Lakes 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) | 8.9 | 15.1 | 20.1 | 25.2 | 28.4 | 30.6 | 31.6 | 37.7 | 34.7 | 27.3 | 19.4 | 12.8 |
| Average daytime temperature (°C) | 2.7 | 4.6 | 6.2 | 14.7 | 18.8 | 24.6 | 26.5 | 26.3 | 22.8 | 16.4 | 9.4 | 5.9 |
| Average temperature (°C) | -0.9 | -0.4 | 2.1 | 9.1 | 13.6 | 19.1 | 22.1 | 21.9 | 19.2 | 12.5 | 5.0 | 3.0 |
| Average night temperature (°C) | -3.3 | -4.3 | -1.1 | 4.3 | 9.1 | 14.7 | 18.5 | 18.2 | 16.1 | 9.5 | 1.7 | 0.9 |
| Absolute minimum temperature (°C) | -20.6 | -20.5 | -11.1 | -2.4 | 1.7 | 7.9 | 14.6 | 13.8 | 11.5 | -1.9 | -10.2 | -7.3 |
| 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) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.9 | 12.5 | 11.1 | 9.8 | 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 | 9.0 |
| Sunshine mean duration (h) | 3.3 | 7.7 | 6.5 | 8.9 | 10.7 | 11.8 | 11.7 | 10.5 | 8.1 | 6.4 | 6.9 | 3.6 |
| Precipitation (mm) | 59 | 104 | 87 | 79 | 42 | 39 | 158 | 108 | 90 | 86 | 56 | 77 |
| Sunny days | 13 | 17 | 9 | 14 | 20 | 19 | 11 | 15 | 12 | 11 | 22 | 15 |
| Rainy days | 10 | 9 | 19 | 16 | 11 | 11 | 20 | 16 | 18 | 19 | 6 | 15 |
| Snow days | 8 | 2 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 1 |
The best time to visit Great Lakes during the most sunny months:
The largest precipitation sum in Great Lakes is at