US Geography / US Weather / Ohio Weather / St Clairsville |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 34 | 37 | 48 | 60 | 70 | 78 | 82 | 80 | 74 | 64 | 51 | 38 |
| Avg. Low | 16 | 18 | 28 | 38 | 48 | 57 | 62 | 60 | 54 | 41 | 32 | 22 |
| Mean | 25 | 28 | 38 | 48 | 60 | 68 | 72 | 71 | 65 | 54 | 42 | 31 |
| Avg. Precip. | 2.3 in | 2.3 in | 3.3 in | 3.5 in | 4.1 in | 4.1 in | 4.4 in | 3.9 in | 2.9 in | 2.7 in | 3.1 in | 2.9 in |
Degrees in Fahrenheit
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