Lacon Illinois Climate Data

Monthly Average Climate Data for Lacon Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January16.2 °F32.4 °F2.08 in.
February19.6 °F36.8 °F1.91 in.
March29.5 °F49.3 °F2.6 in.
April40.0 °F62.9 °F3.86 in.
May51.4 °F73.7 °F4.8 in.
June61.0 °F82.6 °F4.15 in.
July64.6 °F85.7 °F3.81 in.
August62.6 °F84.3 °F3.61 in.
September54.3 °F78.5 °F3.4 in.
October42.7 °F65.8 °F3.13 in.
November31.7 °F50.5 °F2.62 in.
December22.0 °F37.6 °F2.06 in.
Annual41.3 °F61.7 °F38.03 in.

Climate Data for Lacon 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 6a : -10°F to -5°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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