Westerville Ohio Climate Data

Monthly Average Climate Data for Westerville Ohio

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-6.1 °C2.2 °C76.45 mm
February-5.1 °C4.2 °C60.96 mm
March-0.5 °C10.1 °C86.61 mm
April5.2 °C17.4 °C100.08 mm
May11.3 °C23.1 °C107.7 mm
June16.3 °C27.6 °C118.36 mm
July18.2 °C29.2 °C112.27 mm
August17.1 °C28.6 °C89.15 mm
September13.1 °C25.4 °C84.33 mm
October6.7 °C18.6 °C73.41 mm
November1 °C11 °C74.68 mm
December-3.1 °C4.8 °C77.98 mm
Annual6.2 °C16.9 °C1061.98 mm

Climate Data for Westerville Ohio

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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