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Charleston, South Carolina Climate Averages

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Charleston Monthly Climate Averages

January
February
March
April
May
June
July
August
September
October
November
December
Hi 57°F Lo 47°F Hi 60°F Lo 50°F Hi 64°F Lo 54°F Hi 71°F Lo 61°F Hi 78°F Lo 69°F Hi 84°F Lo 75°F Hi 87°F Lo 78°F Hi 86°F Lo 78°F Hi 83°F Lo 74°F Hi 75°F Lo 66°F Hi 66°F Lo 56°F Hi 61°F Lo 52°F
11 mph 11 mph 11 mph 11 mph 10 mph 9 mph 9 mph 9 mph 10 mph 10 mph 11 mph 11 mph
3.9 in 4.9 in 5.5 in 5.5 in 7.6 in 9.6 in 11.2 in 15 in 10.4 in 6.8 in 3.9 in 5.6 in
72% 75% 73% 74% 75% 76% 75% 76% 75% 72% 72% 76%
35% 39% 36% 26% 26% 25% 24% 27% 29% 26% 31% 37%
30.1 in 30.1 in 30.1 in 30.0 in 30.0 in 30.0 in 30.0 in 30.0 in 30.0 in 30.0 in 30.1 in 30.1 in
26 23 25 24 22 18 18 15 21 26 26 25
5 5 6 6 9 12 13 16 9 5 4 6
0 0 0 0 0 0 0 0 0 0 0 0
0 1 0 0 0 0 0 0 0 0 0 0
3 4 4 5 6 6 6 6 6 5 5 4
300 260 310 326 345 335 358 347 321 337 307 305
January
February
March
April
May
June
July
August
September
October
November
December
Hi 14°C Lo 8°C Hi 16°C Lo 10°C Hi 18°C Lo 12°C Hi 22°C Lo 16°C Hi 25°C Lo 20°C Hi 29°C Lo 24°C Hi 30°C Lo 26°C Hi 30°C Lo 26°C Hi 28°C Lo 24°C Hi 24°C Lo 19°C Hi 19°C Lo 13°C Hi 16°C Lo 11°C
17 km/h 17 km/h 17 km/h 17 km/h 16 km/h 15 km/h 15 km/h 14 km/h 15 km/h 16 km/h 17 km/h 17 km/h
98 mm 126 mm 139 mm 140 mm 192 mm 243 mm 283 mm 380 mm 265 mm 174 mm 100 mm 143 mm
72% 75% 73% 74% 75% 76% 75% 76% 75% 72% 72% 76%
35% 39% 36% 26% 26% 25% 24% 27% 29% 26% 31% 37%
1020 mb 1020 mb 1019 mb 1017 mb 1017 mb 1015 mb 1016 mb 1015 mb 1016 mb 1017 mb 1020 mb 1020 mb
26 23 25 24 22 18 18 15 21 26 26 25
5 5 6 6 9 12 13 16 9 5 4 6
0 0 0 0 0 0 0 0 0 0 0 0
0 1 0 0 0 0 0 0 0 0 0 0
3 4 4 5 6 6 6 6 6 5 5 4
300 260 310 326 345 335 358 347 321 337 307 305
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.

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