Butler Illinois Climate Data

Monthly Average Climate Data for Butler Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January20.4 °F36.1 °F2.73 in.
February24.1 °F41.4 °F2.21 in.
March33.0 °F52.5 °F3.05 in.
April43.3 °F65.4 °F4.9 in.
May54.3 °F75.3 °F5.13 in.
June63.1 °F84.0 °F4.37 in.
July66.3 °F87.0 °F3.81 in.
August64.0 °F85.9 °F3.28 in.
September55.9 °F80.3 °F2.99 in.
October44.4 °F68.1 °F3.34 in.
November34.5 °F52.9 °F3.45 in.
December25.6 °F41.1 °F2.54 in.
Annual44.1 °F64.2 °F41.8 in.

Climate Data for Butler Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
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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