Weather World
Charleston Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 33°F Lo 14°F | Hi 36°F Lo 18°F | Hi 43°F Lo 24°F | Hi 51°F Lo 30°F | Hi 63°F Lo 37°F | Hi 78°F Lo 47°F | Hi 87°F Lo 56°F | Hi 85°F Lo 54°F | Hi 77°F Lo 47°F | Hi 59°F Lo 34°F | Hi 45°F Lo 23°F | Hi 34°F Lo 15°F |
| 4 mph | 4 mph | 5 mph | 5 mph | 5 mph | 5 mph | 5 mph | 5 mph | 5 mph | 5 mph | 4 mph | 4 mph |
| 2.9 in | 3.4 in | 3.2 in | 2.7 in | 2.1 in | 0.7 in | 0.5 in | 1 in | 1.1 in | 1.7 in | 2 in | 3.8 in |
| 86% | 85% | 79% | 67% | 58% | 45% | 41% | 43% | 45% | 56% | 68% | 82% |
| 47% | 51% | 44% | 36% | 29% | 16% | 16% | 17% | 15% | 24% | 33% | 48% |
| 30.3 in | 30.1 in | 30.0 in | 29.9 in | 29.9 in | 29.9 in | 29.9 in | 29.9 in | 30.0 in | 30.0 in | 30.1 in | 30.2 in |
| 15 | 14 | 17 | 18 | 24 | 27 | 29 | 28 | 27 | 25 | 20 | 15 |
| 9 | 8 | 7 | 8 | 6 | 3 | 2 | 3 | 3 | 5 | 6 | 9 |
| 7 | 6 | 7 | 5 | 1 | 0 | 0 | 0 | 0 | 1 | 4 | 7 |
| 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |
| 2 | 1 | 2 | 2 | 4 | 5 | 6 | 5 | 4 | 2 | 1 | 1 |
| 158 | 126 | 165 | 195 | 235 | 289 | 304 | 304 | 304 | 265 | 217 | 165 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 1°C Lo -10°C | Hi 2°C Lo -8°C | Hi 6°C Lo -5°C | Hi 11°C Lo -1°C | Hi 17°C Lo 3°C | Hi 25°C Lo 9°C | Hi 31°C Lo 13°C | Hi 29°C Lo 12°C | Hi 25°C Lo 8°C | Hi 15°C Lo 1°C | Hi 7°C Lo -5°C | Hi 1°C Lo -10°C |
| 6 km/h | 7 km/h | 8 km/h | 8 km/h | 8 km/h | 9 km/h | 8 km/h | 8 km/h | 8 km/h | 7 km/h | 7 km/h | 6 km/h |
| 74 mm | 86 mm | 80 mm | 70 mm | 53 mm | 18 mm | 12 mm | 26 mm | 29 mm | 44 mm | 52 mm | 96 mm |
| 86% | 85% | 79% | 67% | 58% | 45% | 41% | 43% | 45% | 56% | 68% | 82% |
| 47% | 51% | 44% | 36% | 29% | 16% | 16% | 17% | 15% | 24% | 33% | 48% |
| 1025 mb | 1021 mb | 1017 mb | 1014 mb | 1012 mb | 1012 mb | 1014 mb | 1014 mb | 1015 mb | 1017 mb | 1021 mb | 1023 mb |
| 15 | 14 | 17 | 18 | 24 | 27 | 29 | 28 | 27 | 25 | 20 | 15 |
| 9 | 8 | 7 | 8 | 6 | 3 | 2 | 3 | 3 | 5 | 6 | 9 |
| 7 | 6 | 7 | 5 | 1 | 0 | 0 | 0 | 0 | 1 | 4 | 7 |
| 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |
| 2 | 1 | 2 | 2 | 4 | 5 | 6 | 5 | 4 | 2 | 1 | 1 |
| 158 | 126 | 165 | 195 | 235 | 289 | 304 | 304 | 304 | 265 | 217 | 165 |
| Month |
| Avg. Temperatures |
| Avg. Wind Speed |
| Avg. Precipitation |
| Average Humidity |
| Avg. Cloud Cover |
| Pressure Average |
| Average Dry Days |
| Avg. Precip. Days |
| Avg. Snow Days |
| Average Fog Days |
| Average UV Index |
| Avg. Hours of Sun |
Averages are based on historical weather data from the past 10 years.