Sullivan Ohio Climate Data

Monthly Average Climate Data for Sullivan Ohio

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7.9 °C0.8 °C71.88 mm
February-7.2 °C2.3 °C54.36 mm
March-2.7 °C7.7 °C74.68 mm
April3.3 °C15.4 °C96.27 mm
May9.3 °C21.3 °C102.87 mm
June14.4 °C26.2 °C109.47 mm
July16.3 °C28.1 °C106.43 mm
August15.3 °C27.3 °C97.28 mm
September11.3 °C24 °C85.85 mm
October5.3 °C17.1 °C80.01 mm
November0 °C9.7 °C73.91 mm
December-4.6 °C3.4 °C68.58 mm
Annual4.4 °C15.3 °C1021.59 mm

Climate Data for Sullivan 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 ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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