New Castle Kentucky Climate Data

Monthly Average Climate Data for New Castle Kentucky

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-5 °C4.8 °C91.44 mm
February-3.6 °C7.2 °C90.68 mm
March0.6 °C12.5 °C113.54 mm
April6.3 °C18.7 °C123.7 mm
May12.2 °C23.5 °C137.41 mm
June16.2 °C28.7 °C125.98 mm
July18.3 °C30.2 °C113.03 mm
August17.6 °C29.3 °C92.2 mm
September13.7 °C26.3 °C92.2 mm
October6.9 °C20.4 °C89.66 mm
November1.3 °C12.8 °C88.9 mm
December-2.5 °C6.9 °C102.87 mm
Annual6.8 °C18.4 °C1261.61 mm

Climate Data for New Castle 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 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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