Bradley Illinois Climate Data

Monthly Average Climate Data for Bradley Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January16.2 °F32.0 °F2.19 in.
February19.3 °F36.3 °F1.89 in.
March28.6 °F48.0 °F2.38 in.
April38.8 °F61.2 °F3.75 in.
May50.2 °F72.2 °F4.52 in.
June60.1 °F81.5 °F4.76 in.
July63.8 °F84.5 °F4.51 in.
August61.8 °F82.9 °F3.83 in.
September53.7 °F77.5 °F3.18 in.
October42.2 °F64.7 °F3.33 in.
November31.7 °F49.7 °F2.65 in.
December22.0 °F37.2 °F2.18 in.
Annual40.7 °F60.6 °F39.17 in.

Climate Data for Bradley Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation