Harlan Kentucky Climate Data

Monthly Average Climate Data for Harlan Kentucky

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-3.7 °C7.4 °C108.71 mm
February-2.3 °C9.6 °C111.76 mm
March1.1 °C14.7 °C123.44 mm
April5.9 °C20.4 °C120.9 mm
May11.4 °C24.5 °C115.32 mm
June15.8 °C27.9 °C110.49 mm
July18.1 °C29.3 °C128.52 mm
August17.4 °C29.1 °C103.63 mm
September13.9 °C26.4 °C89.15 mm
October6.9 °C20.8 °C75.44 mm
November1.1 °C14.7 °C91.44 mm
December-1.6 °C9.3 °C122.68 mm
Annual7 °C19.5 °C1301.48 mm

Climate Data for Harlan Kentucky

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7a : -17.8°C to -15°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate
2024 plantmaps.com