Lansing Illinois Climate Data

Monthly Average Climate Data for Lansing Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.7 °F32.4 °F2.23 in.
February20.3 °F36.1 °F2.19 in.
March29.3 °F46.8 °F2.37 in.
April39.4 °F59.2 °F3.86 in.
May50.3 °F69.9 °F4.38 in.
June60.3 °F79.7 °F4.73 in.
July65.0 °F83.8 °F4.27 in.
August63.4 °F82.0 °F4.15 in.
September55.7 °F76.0 °F3.31 in.
October43.9 °F63.4 °F3.56 in.
November33.2 °F49.4 °F2.81 in.
December23.3 °F37.4 °F2.34 in.
Annual41.8 °F59.7 °F40.2 in.

Climate Data for Lansing Illinois

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
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