Dalzell Illinois Climate Data

Monthly Average Climate Data for Dalzell Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January14.9 °F31.1 °F1.76 in.
February18.6 °F35.6 °F1.75 in.
March28.2 °F48.1 °F2.4 in.
April38.8 °F61.5 °F3.5 in.
May50.4 °F72.8 °F4.61 in.
June60.2 °F81.6 °F4.38 in.
July63.7 °F84.5 °F3.89 in.
August61.6 °F82.7 °F3.73 in.
September53.5 °F77.3 °F3.4 in.
October41.9 °F64.6 °F2.98 in.
November30.9 °F49.3 °F2.48 in.
December20.8 °F36.4 °F1.98 in.
Annual40.3 °F60.5 °F36.86 in.

Climate Data for Dalzell Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°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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