Arlington Illinois Climate Data

Monthly Average Climate Data for Arlington Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.8 °F30.2 °F1.77 in.
February17.5 °F34.7 °F1.75 in.
March27.2 °F47.2 °F2.38 in.
April37.9 °F60.6 °F3.58 in.
May49.7 °F71.9 °F4.67 in.
June59.6 °F80.7 °F4.72 in.
July63.1 °F83.6 °F4.03 in.
August60.7 °F81.8 °F3.88 in.
September52.6 °F76.3 °F3.48 in.
October41.0 °F63.7 °F2.97 in.
November29.9 °F48.4 °F2.44 in.
December19.8 °F35.5 °F1.97 in.
Annual39.4 °F59.6 °F37.64 in.

Climate Data for Arlington 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 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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