Flora Illinois Climate Data

Monthly Average Climate Data for Flora Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January22.6 °F38.6 °F3.29 in.
February25.4 °F43.5 °F2.56 in.
March34.1 °F54.0 °F3.76 in.
April44.4 °F66.4 °F4.91 in.
May55.1 °F76.0 °F5.02 in.
June64.0 °F84.7 °F5.02 in.
July66.8 °F87.6 °F4.16 in.
August64.4 °F86.6 °F3.56 in.
September56.5 °F80.9 °F3.36 in.
October45.3 °F69.4 °F3.53 in.
November34.9 °F54.5 °F4.03 in.
December27.0 °F42.9 °F3.19 in.
Annual45 °F65.4 °F46.39 in.

Climate Data for Flora Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 11 - Apr. 20
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 ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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