Cisco Illinois Climate Data

Monthly Average Climate Data for Cisco Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.1 °F34.2 °F2.2 in.
February21.0 °F38.9 °F2.03 in.
March30.2 °F50.3 °F2.76 in.
April41.1 °F63.8 °F3.98 in.
May52.7 °F74.1 °F4.47 in.
June61.7 °F82.8 °F4.57 in.
July64.6 °F85.3 °F3.92 in.
August62.4 °F83.7 °F3.29 in.
September54.6 °F79.1 °F3.19 in.
October42.8 °F66.2 °F3.24 in.
November32.1 °F51.3 °F2.86 in.
December23.8 °F39.0 °F2.39 in.
Annual42.1 °F62.4 °F38.9 in.

Climate Data for Cisco 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 ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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