Grafton West Virginia Climate Data

Monthly Average Climate Data for Grafton West Virginia

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-5.7 °C4.3 °C92.96 mm
February-4.8 °C6.2 °C84.84 mm
March-1.2 °C11.3 °C102.36 mm
April4.2 °C18.4 °C101.85 mm
May9.6 °C22.8 °C125.22 mm
June14.4 °C26.7 °C117.09 mm
July16.7 °C28.5 °C143 mm
August15.9 °C28.1 °C105.16 mm
September12.1 °C25.2 °C95 mm
October5.6 °C18.8 °C84.84 mm
November0.3 °C12.2 °C77.98 mm
December-3.1 °C6.6 °C100.84 mm
Annual5.3 °C17.4 °C1231.14 mm

Climate Data for Grafton West Virginia

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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