Arrowsmith Illinois Climate Data

Monthly Average Climate Data for Arrowsmith Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January16.2 °F32.1 °F2.24 in.
February18.9 °F36.7 °F1.89 in.
March28.2 °F48.5 °F2.58 in.
April39.2 °F61.6 °F3.62 in.
May51.5 °F72.7 °F4.42 in.
June61.4 °F81.1 °F4.33 in.
July63.7 °F83.8 °F3.99 in.
August61.3 °F82.5 °F3.42 in.
September53.7 °F77.3 °F3.37 in.
October42.3 °F64.7 °F3.3 in.
November30.8 °F49.8 °F2.63 in.
December21.2 °F37.1 °F2.13 in.
Annual40.7 °F60.7 °F37.92 in.

Climate Data for Arrowsmith Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost125-150 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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