Average annual temperature is 6.7 °C
Absolute maximum temperature: 32.8 °C
Absolute minimum temperature: -20.2 °C
Number of sunny days: 162 days
Number of rainy days: 135 days
Number of snow days: 68 days
Look at detailed online map of Keweenaw County
* Weather data for Keweenaw County 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) | 2.4 | 8.0 | 6.6 | 20.3 | 31.4 | 29.1 | 29.3 | 28.6 | 32.8 | 29.0 | 16.8 | 8.7 |
| Average daytime temperature (°C) | -2.3 | -2.6 | 0.2 | 6.7 | 16.5 | 21.9 | 23.1 | 22.7 | 20.5 | 12.1 | 5.1 | 3.1 |
| Average temperature (°C) | -4.5 | -6.1 | -3.1 | 2.4 | 10.5 | 16.2 | 18.1 | 18.0 | 16.3 | 9.3 | 1.8 | 0.4 |
| Average night temperature (°C) | -6.7 | -9.7 | -6.0 | -1.1 | 5.7 | 11.4 | 13.9 | 14.2 | 12.9 | 7.0 | -0.8 | -1.9 |
| Absolute minimum temperature (°C) | -18.4 | -20.2 | -11.1 | -8.4 | -1.4 | 6.4 | 10.8 | 8.4 | 7.8 | -2.4 | -8.8 | -7.2 |
| 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 | 8.0 |
| Daylight mean duration (h) | 9.0 | 10.3 | 11.9 | 13.6 | 15.1 | 15.9 | 15.5 | 14.2 | 12.6 | 10.9 | 9.4 | 8.6 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 2.1 | 5.6 | 6.4 | 7.3 | 11.2 | 11.6 | 12.5 | 11.0 | 9.1 | 5.3 | 4.1 | 2.9 |
| Precipitation (mm) | 56 | 60 | 52 | 144 | 79 | 123 | 48 | 69 | 46 | 63 | 51 | 53 |
| Sunny days | 7 | 7 | 15 | 11 | 21 | 18 | 13 | 16 | 18 | 8 | 13 | 15 |
| Rainy days | 3 | 3 | 3 | 13 | 10 | 12 | 18 | 15 | 12 | 21 | 14 | 11 |
| Snow days | 21 | 18 | 13 | 6 | 0 | 0 | 0 | 0 | 0 | 2 | 3 | 5 |
The best time to visit Keweenaw County during the most sunny months:
Months with the longest average daylight duration in Keweenaw County:
The largest precipitation sum in Keweenaw County is at