US Geography / US Weather / Ohio Weather / Portsmouth |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 38 | 44 | 55 | 66 | 75 | 84 | 86 | 85 | 78 | 68 | 55 | 44 |
| Avg. Low | 20 | 24 | 34 | 42 | 51 | 58 | 64 | 62 | 55 | 44 | 35 | 26 |
| Mean | 30 | 34 | 45 | 55 | 64 | 71 | 75 | 74 | 67 | 56 | 46 | 35 |
| Avg. Precip. | 2.7 in | 2.7 in | 3.6 in | 3.6 in | 4.3 in | 3.5 in | 4.0 in | 4.3 in | 3.3 in | 2.5 in | 3.1 in | 3.3 in |
Degrees in Fahrenheit
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