Champaign Illinois Climate Data

Monthly Average Climate Data for Champaign Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.5 °F33.4 °F2.27 in.
February20.6 °F37.9 °F2.09 in.
March29.8 °F49.7 °F2.78 in.
April40.3 °F63.3 °F4.13 in.
May52.1 °F73.9 °F4.54 in.
June61.3 °F82.3 °F4.73 in.
July64.1 °F84.6 °F4.2 in.
August61.6 °F83.1 °F3.11 in.
September54.4 °F78.8 °F3.13 in.
October42.5 °F65.9 °F3.45 in.
November32.0 °F50.8 °F3.19 in.
December23.2 °F38.3 °F2.41 in.
Annual41.6 °F61.8 °F40.03 in.

Climate Data for Champaign Illinois

Average First Frost DateOct. 11 - Oct. 20
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 ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation