US Geography / US Weather / Michigan Weather / Ionia |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 28 | 31 | 44 | 57 | 70 | 78 | 84 | 80 | 74 | 60 | 46 | 34 |
| Avg. Low | 11 | 12 | 24 | 34 | 44 | 54 | 57 | 55 | 48 | 38 | 28 | 18 |
| Mean | 20 | 22 | 34 | 46 | 57 | 66 | 71 | 68 | 61 | 48 | 38 | 26 |
| Avg. Precip. | 1.8 in | 1.6 in | 2.5 in | 3.1 in | 3.1 in | 3.5 in | 2.7 in | 4.0 in | 4.0 in | 2.7 in | 2.9 in | 2.7 in |
Degrees in Fahrenheit
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