Willoughby Ohio Climate Data

Monthly Average Climate Data for Willoughby Ohio

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-6.1 °C1.3 °C80.01 mm
February-5.8 °C2.2 °C56.9 mm
March-2.2 °C6.4 °C72.64 mm
April4 °C13.7 °C88.14 mm
May10.2 °C19.7 °C94.74 mm
June15.6 °C24.7 °C95.25 mm
July17.9 °C26.7 °C107.7 mm
August17.3 °C25.9 °C99.82 mm
September13.6 °C22.7 °C105.66 mm
October7.8 °C16.3 °C106.17 mm
November2.3 °C9.9 °C87.63 mm
December-2.6 °C4.1 °C85.09 mm
Annual6 °C14.5 °C1079.75 mm

Climate Data for Willoughby Ohio

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 11 - May 20
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 7a : -17.8°C to -15°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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