Radnor Ohio Climate Data

Monthly Average Climate Data for Radnor Ohio

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.5 °F34.6 °F2.88 in.
February21.3 °F37.7 °F2.22 in.
March29.6 °F48.4 °F3.0 in.
April40.1 °F61.5 °F3.92 in.
May50.9 °F72.2 °F4.18 in.
June60.3 °F80.4 °F4.73 in.
July63.6 °F83.5 °F4.31 in.
August61.4 °F82.2 °F3.49 in.
September53.9 °F76.8 °F3.2 in.
October42.6 °F64.3 °F2.77 in.
November32.9 °F50.9 °F2.93 in.
December25.2 °F39.4 °F2.84 in.
Annual41.8 °F61 °F40.47 in.

Climate Data for Radnor Ohio

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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