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 | 47.8 | 50.5 | 58.1 | 64.9 | 72.8 | 78.3 | 81.5 | 80.6 | 76.4 | 66.8 | 58.4 | 51.2 | 65.6 |
| Avg. Max Temperature | 57.8 | 61.0 | 68.6 | 75.8 | 82.7 | 87.6 | 90.2 | 89.0 | 84.9 | 77.2 | 69.5 | 61.6 | 75.5 |
| Avg. Min Temperature | 37.7 | 40.0 | 47.5 | 53.9 | 62.9 | 69.1 | 72.7 | 72.2 | 67.9 | 56.3 | 47.2 | 40.7 | 55.7 |
| Days with Max Temp of 90 F 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