Liberty Illinois Climate Data

Monthly Average Climate Data for Liberty Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.2 °F34.6 °F1.93 in.
February21.8 °F39.6 °F2.01 in.
March31.3 °F51.1 °F2.6 in.
April42.2 °F63.3 °F4.05 in.
May53.6 °F73.1 °F4.9 in.
June63.0 °F82.1 °F4.59 in.
July66.3 °F85.9 °F3.94 in.
August64.1 °F84.5 °F3.71 in.
September55.4 °F78.2 °F3.4 in.
October44.1 °F65.8 °F3.13 in.
November33.2 °F51.7 °F2.71 in.
December23.6 °F39.3 °F2.08 in.
Annual43.1 °F62.4 °F39.05 in.

Climate Data for Liberty 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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