Charleston Airport
The tables below display average monthly climate and weather indicators in Charleston Airport South Carolina.
Temperature by: Fahrenheit / Centigrade
| Charleston Airport Temperature |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Avg. Temperature | 8.8 | 10.3 | 14.5 | 18.3 | 22.7 | 25.7 | 27.5 | 27.0 | 24.7 | 19.3 | 14.7 | 10.7 | 18.7 |
| Avg. Max Temperature | 14.3 | 16.1 | 20.3 | 24.3 | 28.2 | 30.9 | 32.3 | 31.7 | 29.4 | 25.1 | 20.8 | 16.4 | 24.2 |
| Avg. Min Temperature | 3.2 | 4.4 | 8.6 | 12.2 | 17.2 | 20.6 | 22.6 | 22.3 | 19.9 | 13.5 | 8.4 | 4.8 | 13.2 |
| Days with Max Temp of 32 C or Higher | 0.0 | 0.0 | < 0.5 | 1.0 | 4.0 | 11.0 | 17.0 | 14.0 | 5.0 | < 0.5 | 0.0 | 0.0 | 53.0 |
| Days with Min Temp Below Freezing | 11.0 | 7.0 | 3.0 | < 0.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | < 0.5 | 3.0 | 9.0 | 32.0 |
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| Charleston Airport Heating and Cooling |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Heating Degree Days | 548 | 414 | 239 | 66.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 74.0 | 233 | 439 | 2013 |
| Cooling Degree Days | 15.0 | 8.0 | 25.0 | 63.0 | 242 | 399 | 512 | 484 | 342 | 130 | 35.0 | 11.0 | 2266 |
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| Charleston Airport Precipitation |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Precipitation (inches) | 3.5 | 3.3 | 4.3 | 2.7 | 4.0 | 6.4 | 6.8 | 7.2 | 4.7 | 2.9 | 2.5 | 3.2 | 51.5 |
| Days with Precipitation 0.01 inch or More | 10.0 | 9.0 | 10.0 | 7.0 | 9.0 | 11.0 | 14.0 | 13.0 | 10.0 | 6.0 | 7.0 | 9.0 | 114 |
| Monthly Snowfall (inches) | 0.1 | 0.2 | 0.1 | < 0.05 | 0.0 | < 0.05 | < 0.05 | 0.0 | 0.0 | 0.0 | < 0.05 | 0.3 | 0.7 |
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| Other Charleston Airport Weather Indicators |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Average Wind Speed | 9.1 | 9.8 | 10.0 | 9.7 | 8.6 | 8.3 | 7.8 | 7.4 | 7.7 | 8.0 | 8.1 | 8.5 | 8.6 |
| Clear Days | 9.0 | 9.0 | 9.0 | 11.0 | 8.0 | 6.0 | 5.0 | 6.0 | 7.0 | 11.0 | 12.0 | 9.0 | 102 |
| Partly Cloudy Days | 6.0 | 6.0 | 8.0 | 8.0 | 11.0 | 11.0 | 12.0 | 13.0 | 10.0 | 8.0 | 7.0 | 7.0 | 109 |
| Cloudy Days | 16.0 | 13.0 | 14.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 11.0 | 12.0 | 14.0 | 155 |
| Percent of Possible Sunshine | 56.0 | 59.0 | 66.0 | 72.0 | 68.0 | 66.0 | 67.0 | 64.0 | 61.0 | 63.0 | 59.0 | 56.0 | 63.0 |
| Avg. Relative Humidity | 69.5 | 69.0 | 67.5 | 67.0 | 67.0 | 69.5 | 73.5 | 76.0 | 76.5 | 75.5 | 71.0 | 68.5 | 70.5 |
Weather information for other cities in South Carolina