Homer Illinois Climate Data

Monthly Average Climate Data for Homer Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.9 °F33.8 °F2.4 in.
February21.1 °F38.4 °F2.1 in.
March30.3 °F50.2 °F2.84 in.
April41.0 °F63.5 °F4.1 in.
May52.6 °F73.9 °F4.49 in.
June61.7 °F82.1 °F4.79 in.
July64.3 °F84.3 °F4.21 in.
August61.9 °F83.0 °F3.06 in.
September54.5 °F78.3 °F3.22 in.
October43.0 °F65.8 °F3.36 in.
November32.4 °F51.2 °F3.3 in.
December23.8 °F38.7 °F2.47 in.
Annual42 °F61.9 °F40.34 in.

Climate Data for Homer Illinois

Average First Frost DateOct. 11 - Oct. 20
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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