Radnor Ohio Climate Data

Monthly Average Climate Data for Radnor Ohio

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-6.9 °C1.4 °C73.15 mm
February-5.9 °C3.2 °C56.39 mm
March-1.3 °C9.1 °C76.2 mm
April4.5 °C16.4 °C99.57 mm
May10.5 °C22.3 °C106.17 mm
June15.7 °C26.9 °C120.14 mm
July17.6 °C28.6 °C109.47 mm
August16.3 °C27.9 °C88.65 mm
September12.2 °C24.9 °C81.28 mm
October5.9 °C17.9 °C70.36 mm
November0.5 °C10.5 °C74.42 mm
December-3.8 °C4.1 °C72.14 mm
Annual5.4 °C16.1 °C1027.94 mm

Climate Data for Radnor 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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