Pearl Illinois Climate Data

Monthly Average Climate Data for Pearl Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.3 °F36.6 °F2.15 in.
February22.8 °F41.8 °F2.02 in.
March31.7 °F53.0 °F2.88 in.
April42.2 °F65.4 °F4.18 in.
May53.6 °F74.9 °F4.75 in.
June62.7 °F83.7 °F4.67 in.
July66.3 °F87.0 °F3.99 in.
August63.9 °F85.9 °F3.42 in.
September55.3 °F79.8 °F3.43 in.
October44.0 °F67.7 °F3.01 in.
November33.4 °F53.5 °F3.01 in.
December24.3 °F41.4 °F2.26 in.
Annual43.3 °F64.2 °F39.77 in.

Climate Data for Pearl Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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