Charleston, South Carolina — Climate
Charleston Weather
Charleston has a subtropical, humid climate. Spring is a lovely time of year, conditions warming up rapidly between March and May, spring flowers blooming profusely. Summer is hot and humid, the area's coastal situation helping to keep things cooler than inland. It is also the wettest season with almost half the annual rainfall occurring during summer, falling as showers or in thunderstorms. Fall remains warm right until November when cold spells start making an appearance. Fall is also hurricane season. Winter is short and mild, settling in by December and easing up by February, sometimes rainy and with occasional snow flurries in early January.
Average Temperatures and Rainfall in Charleston
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (inches) | 3.5 | 3.1 | 4.5 | 2.8 | 3.8 | 6.1 | 7.1 | 6.9 | 5.3 | 3.0 | 2.5 | 3.2 |
| Rainfall (cm) | 88 | 79 | 114 | 71 | 97 | 155 | 180 | 176 | 135 | 76 | 62 | 81 |
| Ave Temp (°C) | 9 °C | 10 °C | 14 °C | 18 °C | 22 °C | 26 °C | 27 °C | 27 °C | 25 °C | 19 °C | 15 °C | 10 °C |
| Min Temp (°C) | 3 °C | 4 °C | 9 °C | 12 °C | 17 °C | 21 °C | 23 °C | 22 °C | 20 °C | 13 °C | 8 °C | 5 °C |
| Max Temp (°C) | 14 °C | 16 °C | 20 °C | 24 °C | 28 °C | 31 °C | 32 °C | 31 °C | 29 °C | 25 °C | 21 °C | 16 °C |
| Ave Temp (°F) | 47 °F | 50 °F | 58 °F | 65 °F | 73 °F | 78 °F | 81 °F | 80 °F | 76 °F | 67 °F | 58 °F | 51 °F |
| Min Temp (°F) | 37 °F | 40 °F | 47 °F | 54 °F | 63 °F | 69 °F | 72 °F | 72 °F | 68 °F | 56 °F | 47 °F | 40 °F |
| Max Temp (°F) | 58 °F | 61 °F | 68 °F | 76 °F | 82 °F | 87 °F | 90 °F | 89 °F | 84 °F | 77 °F | 69 °F | 61 °F |
| Good Weather | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
