US Geography / US Weather / South Carolina Weather / Union |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 52 | 57 | 66 | 75 | 81 | 87 | 90 | 88 | 82 | 74 | 64 | 55 |
| Avg. Low | 31 | 34 | 40 | 48 | 56 | 64 | 68 | 67 | 61 | 48 | 41 | 34 |
| Mean | 42 | 45 | 54 | 62 | 68 | 76 | 78 | 78 | 72 | 61 | 54 | 45 |
| Avg. Precip. | 4.5 in | 4.3 in | 5.3 in | 3.1 in | 3.5 in | 4.3 in | 4.5 in | 4.3 in | 4.0 in | 3.3 in | 3.3 in | 3.8 in |
Degrees in Fahrenheit
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