South Pekin Illinois Climate Data

Monthly Average Climate Data for South Pekin Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.2 °F34.1 °F2.11 in.
February20.6 °F38.8 °F1.97 in.
March30.4 °F51.0 °F2.57 in.
April40.9 °F64.0 °F3.87 in.
May52.6 °F74.4 °F4.8 in.
June62.0 °F83.2 °F4.48 in.
July65.1 °F86.3 °F4.02 in.
August62.7 °F84.9 °F3.48 in.
September54.3 °F79.6 °F3.39 in.
October42.4 °F66.7 °F3.13 in.
November31.8 °F51.7 °F2.79 in.
December22.8 °F39.3 °F2.16 in.
Annual41.9 °F62.8 °F38.77 in.

Climate Data for South Pekin Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost75-100 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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