Highwood Illinois Climate Data

Monthly Average Climate Data for Highwood Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.7 °F31.3 °F2.12 in.
February20.8 °F35.1 °F2.01 in.
March29.4 °F44.9 °F2.23 in.
April39.3 °F55.9 °F3.9 in.
May49.7 °F67.4 °F4.6 in.
June59.9 °F77.5 °F4.28 in.
July66.3 °F82.4 °F3.79 in.
August65.6 °F80.9 °F3.99 in.
September58.0 °F74.3 °F3.74 in.
October45.8 °F62.0 °F3.43 in.
November34.1 °F48.0 °F2.6 in.
December24.1 °F36.7 °F2.17 in.
Annual42.6 °F58 °F38.86 in.

Climate Data for Highwood 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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