Weather By Day

August Weather In Charleston  
August Charleston Weather
Record High: 104°F
Normal High: 89°F
Normal Low: 72°F
Record Low: 41°F
Avg Monthly Rain: 6.91"
Rec 1 Day Rain: 4.13"

Charleston Weather In August

In the last 68 years the highest measured August temperature in Charleston was 104 degrees Fahrenheit, most recently measured on August 23, 2007, and the regular high is 89. In the last 68 years the highest reported temperature in Charleston for August was 41 most recently encountered on August 29, 1965, while the normal low measured temperature is 72.

US National Weather Service Charleston August Weather data records that on August 31, 1967, the high temperature did not exceed 65 degrees Fahrenheit, the lowest high measured in Charleston in the past 68 years. Weather Service records additionally indicate that on August 21, 1968, the low for the day was not measured below 75 degrees, the highest low temperature recorded in Charleston in the last 68 years.

Historical weather data accumulated by the National Weather Service shows that the average daily high temperature in Charleston on August First is 86 degrees Fahrenheit and the average high on the last day of August is 84 degrees. The average daily low temperature in Charleston on August First is 65 degrees Fahrenheit and the average low on the last day of August is 62 degrees.

Charleston usually receives an average of 6.91 inches of rain during August. August Charleston Weather records show that on August 8, 1958 Charleston received 4.13 inches of rain, the most rain measured in a single day in August.