Mount Vernon Ohio Climate Data

Monthly Average Climate Data for Mount Vernon Ohio

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7.7 °C1.5 °C84.33 mm
February-6.8 °C3.2 °C61.47 mm
March-2.3 °C8.8 °C85.85 mm
April3.4 °C16.3 °C98.04 mm
May9.3 °C21.8 °C110.74 mm
June14.4 °C26.4 °C119.38 mm
July16.2 °C28.3 °C105.66 mm
August15.2 °C27.7 °C88.39 mm
September11.1 °C24.3 °C84.07 mm
October4.7 °C17.7 °C71.37 mm
November-0.3 °C10.3 °C74.68 mm
December-4.5 °C4.1 °C77.22 mm
Annual4.4 °C15.9 °C1061.2 mm

Climate Data for Mount Vernon Ohio

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6a : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation