US Geography / US Weather / Iowa Weather / Marion |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 28 | 34 | 46 | 61 | 74 | 81 | 85 | 84 | 75 | 64 | 47 | 32 |
| Avg. Low | 10 | 14 | 27 | 38 | 48 | 58 | 64 | 61 | 54 | 42 | 28 | 16 |
| Mean | 18 | 24 | 37 | 50 | 62 | 71 | 75 | 72 | 64 | 54 | 38 | 24 |
| Avg. Precip. | 1.1 in | 1.0 in | 2.3 in | 3.4 in | 4.3 in | 5.1 in | 4.4 in | 4.4 in | 4.3 in | 2.6 in | 2.3 in | 1.6 in |
Degrees in Fahrenheit
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