Knoxville Tennessee Climate Data

Monthly Average Climate Data for Knoxville Tennessee

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-1.7 °C8.8 °C123.7 mm
February0 °C11.3 °C116.33 mm
March3.5 °C16.3 °C126.75 mm
April8.2 °C21.6 °C117.86 mm
May13.6 °C25.9 °C109.47 mm
June17.9 °C29.7 °C115.06 mm
July20.2 °C31.3 °C140.46 mm
August19.6 °C31.1 °C81.53 mm
September16.2 °C28.4 °C87.38 mm
October9.3 °C22.4 °C81.03 mm
November2.8 °C15.7 °C100.58 mm
December0.2 °C10.7 °C131.32 mm
Annual9.2 °C21.1 °C1331.47 mm

Climate Data for Knoxville 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 : -15°C to -12.2°C
Plant Hardiness Zone - 2012Zone 7a : -17.8°C to -15°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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