Kaskaskia Illinois Climate Data

Monthly Average Climate Data for Kaskaskia Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January23.5 °F41.4 °F2.7 in.
February27.3 °F46.9 °F2.58 in.
March34.9 °F56.6 °F3.56 in.
April44.9 °F68.1 °F4.86 in.
May55.7 °F77.3 °F5.3 in.
June64.7 °F86.0 °F4.24 in.
July68.2 °F88.9 °F3.95 in.
August65.8 °F88.7 °F3.08 in.
September57.0 °F81.7 °F3.14 in.
October45.3 °F70.6 °F3.2 in.
November35.5 °F56.4 °F3.76 in.
December26.9 °F44.9 °F3.05 in.
Annual45.8 °F67.3 °F43.42 in.

Climate Data for Kaskaskia 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 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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