Bentley Illinois Climate Data

Monthly Average Climate Data for Bentley Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January16.7 °F33.7 °F1.74 in.
February20.4 °F38.5 °F1.98 in.
March30.5 °F50.6 °F2.54 in.
April41.3 °F63.6 °F4.06 in.
May52.8 °F73.7 °F5.33 in.
June62.5 °F82.9 °F4.88 in.
July66.0 °F86.5 °F4.14 in.
August63.7 °F84.8 °F3.94 in.
September55.1 °F79.0 °F3.71 in.
October43.5 °F66.1 °F3.2 in.
November32.2 °F51.4 °F2.63 in.
December22.4 °F38.7 °F1.96 in.
Annual42.3 °F62.5 °F40.11 in.

Climate Data for Bentley Illinois

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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