Rainy days · South Carolina
How often does it rain in Charleston?
Charleston’s summer rain is warm, gracious and absolutely will not let anyone keep their hair straight.
Charleston gets measurable rain or snow on about 114 days a year, adding up to about 52 inches.
November usually brings Charleston about 7 wet days and 2.7 inches. The wettest month is usually July, with about 13 wet days, and the driest is November, with about 7 wet days. That makes Charleston number 70 of the 129 US cities we track, rainiest first.
Last updated
No rain in the forecast for the next 48 hours.
Live 48-hour check from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.
Rainy days, month by month
| Month | Wet days | Inches |
|---|---|---|
| January | 9 | 3.4 |
| February | 8 | 3.0 |
| March | 8 | 3.4 |
| April | 8 | 3.3 |
| May | 8 | 3.3 |
| June | 12 | 6.2 |
| July | 13 | 6.6 |
| August | 13 | 7.0 |
| September | 10 | 6.0 |
| October | 7 | 4.3 |
| November | 7 | 2.7 |
| December | 9 | 3.4 |
Cities with about as many rainy days
- St. Louis, Missouri: about 114 wet days a year
- Jacksonville, Florida: about 114 wet days a year
- Waterloo, Iowa: about 114 wet days a year
Source: NOAA daily precipitation records for the Charleston area, 1991 to 2020 (at least 30 complete years behind every month), via the Applied Climate Information System. A wet day here means at least a hundredth of an inch of rain or melted snow.