Charleston Tennessee Climate Data

Monthly Average Climate Data for Charleston Tennessee

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January28.7 °F48.8 °F5.41 in.
February31.4 °F53.2 °F4.82 in.
March37.6 °F61.9 °F5.71 in.
April45.8 °F71.5 °F4.97 in.
May55.7 °F79.1 °F4.38 in.
June63.9 °F85.8 °F4.88 in.
July67.9 °F88.8 °F5.51 in.
August66.6 °F88.4 °F3.85 in.
September60.0 °F83.3 °F4.75 in.
October47.3 °F72.8 °F3.24 in.
November36.0 °F60.9 °F4.69 in.
December31.4 °F51.6 °F5.71 in.
Annual47.7 °F70.5 °F57.92 in.

Climate Data for Charleston Tennessee

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7b : 5°F to 10°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate