Average annual temperature is 8.1 °C
Absolute maximum temperature: 35.0 °C
Absolute minimum temperature: -27.4 °C
Number of sunny days: 184 days
Number of rainy days: 141 days
Number of snow days: 40 days
Look at detailed online map of Marathon County
* Weather data for Marathon 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) | 2.5 | 6.3 | 6.9 | 26.6 | 31.5 | 32.1 | 30.6 | 35.0 | 34.3 | 29.1 | 16.0 | 10.9 |
| Average daytime temperature (°C) | -2.0 | -0.2 | 3.1 | 11.9 | 21.2 | 26.7 | 26.4 | 26.1 | 22.9 | 13.8 | 6.0 | 3.7 |
| Average temperature (°C) | -5.5 | -5.5 | -2.4 | 5.7 | 14.3 | 20.2 | 20.5 | 20.3 | 17.6 | 9.6 | 1.5 | 0.0 |
| Average night temperature (°C) | -8.5 | -10.0 | -7.4 | 0.7 | 8.5 | 14.3 | 15.3 | 15.6 | 13.6 | 6.1 | -1.9 | -2.5 |
| Absolute minimum temperature (°C) | -27.4 | -26.5 | -18.6 | -9.8 | 0.5 | 6.1 | 11.4 | 8.5 | 6.8 | -5.9 | -13.9 | -9.1 |
| 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) | 9.2 | 10.4 | 11.9 | 13.5 | 14.8 | 15.5 | 15.2 | 14.0 | 12.5 | 11.0 | 9.6 | 8.8 |
| 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) | 3.7 | 6.6 | 7.2 | 8.0 | 10.2 | 12.6 | 12.6 | 11.0 | 8.5 | 6.2 | 6.0 | 4.5 |
| Precipitation (mm) | 45 | 59 | 69 | 154 | 38 | 55 | 68 | 56 | 61 | 137 | 17 | 21 |
| Sunny days | 17 | 13 | 17 | 11 | 18 | 18 | 10 | 14 | 14 | 12 | 21 | 19 |
| Rainy days | 5 | 5 | 5 | 17 | 13 | 12 | 21 | 17 | 16 | 16 | 7 | 7 |
| Snow days | 9 | 10 | 9 | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 2 | 5 |
The best time to visit Marathon County during the most sunny months:
Months with the longest average daylight duration in Marathon County:
The largest precipitation sum in Marathon County is at