Average annual temperature is 19.0 °C
Absolute maximum temperature: 40.5 °C
Absolute minimum temperature: -4.8 °C
Number of sunny days: 280 days
Number of rainy days: 85 days
Look at detailed online map of Marathon
* Weather data for Marathon 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) | 24.5 | 28.2 | 28.9 | 31.4 | 33.5 | 40.5 | 39.3 | 39.8 | 37.2 | 32.7 | 29.6 | 23.6 |
| Average daytime temperature (°C) | 17.5 | 18.6 | 23.6 | 26.8 | 29.3 | 36.4 | 35.0 | 34.2 | 33.3 | 25.6 | 18.7 | 16.8 |
| Average temperature (°C) | 10.0 | 9.9 | 14.8 | 18.3 | 22.2 | 29.1 | 28.3 | 28.0 | 26.1 | 18.9 | 12.0 | 9.4 |
| Average night temperature (°C) | 4.1 | 4.0 | 8.2 | 11.0 | 15.4 | 21.5 | 21.4 | 21.9 | 19.3 | 13.5 | 7.5 | 3.9 |
| Absolute minimum temperature (°C) | -2.4 | -4.8 | -0.4 | 5.7 | 12.8 | 14.8 | 18.5 | 17.1 | 16.8 | -0.9 | 0.1 | -3.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.4 | 11.1 | 12.0 | 12.9 | 13.7 | 14.1 | 13.9 | 13.2 | 12.3 | 11.4 | 10.6 | 10.2 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 9.0 | 8.9 | 9.7 | 11.1 | 11.2 | 12.2 | 12.7 | 11.6 | 11.4 | 9.2 | 7.2 | 8.6 |
| Precipitation (mm) | 2 | 25 | 17 | 1 | 26 | 4 | 9 | 44 | 4 | 36 | 20 | 3 |
| Sunny days | 26 | 21 | 26 | 27 | 12 | 23 | 24 | 23 | 24 | 24 | 23 | 27 |
| Rainy days | 5 | 7 | 5 | 3 | 19 | 7 | 7 | 8 | 6 | 7 | 7 | 4 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Marathon is at