London Ohio Climate Data

Monthly Average Climate Data for London Ohio

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.8 °F35.1 °F3.06 in.
February21.7 °F38.8 °F2.42 in.
March29.8 °F49.2 °F3.27 in.
April40.1 °F61.9 °F4.0 in.
May51.3 °F72.6 °F4.67 in.
June60.4 °F80.9 °F4.42 in.
July63.2 °F83.5 °F4.55 in.
August60.9 °F82.3 °F3.25 in.
September53.8 °F77.3 °F3.03 in.
October42.5 °F64.8 °F2.66 in.
November32.4 °F51.0 °F3.02 in.
December25.4 °F39.8 °F2.97 in.
Annual41.8 °F61.4 °F41.32 in.

Climate Data for London 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 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation