Ontario Ohio Climate Data

Monthly Average Climate Data for Ontario Ohio

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7.9 °C0.7 °C81.03 mm
February-7.1 °C2.2 °C57.91 mm
March-2.6 °C7.6 °C75.69 mm
April3.6 °C15.3 °C101.85 mm
May9.9 °C21.4 °C110.49 mm
June14.8 °C25.8 °C125.98 mm
July16.6 °C27.9 °C108.71 mm
August15.6 °C26.9 °C92.71 mm
September12.1 °C23.7 °C83.57 mm
October5.7 °C16.7 °C77.22 mm
November0.1 °C9.2 °C76.45 mm
December-4.5 °C3.3 °C75.69 mm
Annual4.7 °C15.1 °C1067.3 mm

Climate Data for Ontario Ohio

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6a : -23.3°C to -20.6°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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