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Weather & Climate in Marathon, ON
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Marathon has a cool climate with an average annual temperature of 36°F (2°C). Winters average 7°F in January while summers reach 59°F in July. The area gets 274 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 34.1 inches. The area receives 13.7 inches of snow annually. The city sits at an elevation of 732 feet.
Temperature
7°F Jan (-14°C)
59°F Jul (15°C)
| Annual Average | 35.5°F |
| 34% below US avg | |
| January Average | 7°F (-14°C) |
| July Average | 59°F (15°C) |
| Sunny Days | 274 days/yr |
Geography
| Elevation | 732 ft (223 m) |
| Area | 64.5 sq mi (167.0 km²) |
| Population Density | 49/sq mi |
| Coordinates | 48.7209°N, 86.3716°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 7°F (-14°C) | 2.5 in | Coldest |
| February | 11°F (-12°C) | 1.8 in | Driest |
| March | 20°F (-7°C) | 2.1 in | |
| April | 34°F (1°C) | 2.1 in | |
| May | 45°F (7°C) | 2.7 in | |
| June | 54°F (12°C) | 3.4 in | |
| July | 59°F (15°C) | 3.5 in | |
| August | 60°F (15°C) | 3.3 in | Warmest |
| September | 52°F (11°C) | 4.0 in | Wettest |
| October | 42°F (5°C) | 3.5 in | |
| November | 28°F (-2°C) | 2.7 in | |
| December | 15°F (-10°C) | 2.4 in |
Marathon has a seasonal temperature swing of 53°F / from 7°F in January to 60°F in August. Total annual precipitation is 34.1 inches, with September being the wettest month (4.0") and February the driest (1.8").