Lyons Illinois Climate Data

Monthly Average Climate Data for Lyons Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.1 °F31.8 °F2.17 in.
February20.9 °F35.6 °F2.07 in.
March30.0 °F46.4 °F2.37 in.
April40.3 °F59.2 °F3.96 in.
May51.2 °F70.4 °F4.77 in.
June61.4 °F80.4 °F4.38 in.
July66.7 °F84.9 °F4.31 in.
August65.3 °F82.8 °F4.14 in.
September57.5 °F76.4 °F3.23 in.
October45.1 °F63.4 °F3.43 in.
November33.9 °F49.0 °F2.53 in.
December23.9 °F37.2 °F2.33 in.
Annual42.9 °F59.8 °F39.69 in.

Climate Data for Lyons 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 6a : -10°F to -5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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