US Geography / US Weather / Missouri Weather / Mount Vernon |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 41 | 45 | 56 | 67 | 74 | 84 | 88 | 88 | 78 | 68 | 56 | 45 |
| Avg. Low | 18 | 24 | 34 | 44 | 54 | 61 | 66 | 64 | 57 | 45 | 35 | 24 |
| Mean | 30 | 35 | 45 | 56 | 64 | 72 | 78 | 76 | 68 | 58 | 46 | 35 |
| Avg. Precip. | 1.7 in | 2.0 in | 3.8 in | 4.0 in | 4.8 in | 5.3 in | 2.9 in | 4.3 in | 4.8 in | 3.7 in | 3.8 in | 2.7 in |
Degrees in Fahrenheit
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