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Marathon, IA Climate
1991 to 2020 normals at Sioux Rapids 4 E, 4.8 mi from the center of Marathon, elevation 1420 ft.
Average weather by month
Select a month for daily normals and last year's weather
| Month | Range | High | Low | Precip. | Snow |
|---|---|---|---|---|---|
| January | 25° | 8° | 0.62 in | 8.0 in | |
| February | 30° | 13° | 0.83 in | 6.9 in | |
| March | 43° | 25° | 1.76 in | 6.5 in | |
| April | 58° | 36° | 3.58 in | 2.3 in | |
| May | 70° | 48° | 4.19 in | 0.3 in | |
| June | 80° | 59° | 5.05 in | 0.0 in | |
| July | 82° | 62° | 3.29 in | 0.0 in | |
| August | 79° | 59° | 4.41 in | 0.0 in | |
| September | 74° | 51° | 3.39 in | 0.0 in | |
| October | 61° | 39° | 2.51 in | 0.7 in | |
| November | 44° | 25° | 1.42 in | 3.8 in | |
| December | 30° | 14° | 0.94 in | 6.7 in | |
| Year | 56° | 31.99 in | 35.2 in |
Frequently asked questions
- What is the hottest month in Marathon, IA?
- July is the warmest month, with a normal high of 82°F at Sioux Rapids 4 E.
- What is the coldest month in Marathon, IA?
- January is the coldest month, with a normal low of 8°F.
- What is the wettest month in Marathon, IA?
- June has the most precipitation on average, about 5.05 inches.