Addison Illinois Climate Data

Monthly Average Climate Data for Addison Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January16.3 °F31.5 °F2.12 in.
February19.0 °F35.3 °F2.1 in.
March28.4 °F46.4 °F2.28 in.
April38.6 °F58.7 °F3.83 in.
May49.5 °F70.0 °F4.76 in.
June59.5 °F80.0 °F4.51 in.
July64.7 °F84.3 °F3.66 in.
August63.3 °F82.3 °F4.13 in.
September55.3 °F75.6 °F3.36 in.
October43.2 °F62.7 °F3.4 in.
November31.9 °F48.5 °F2.57 in.
December22.2 °F36.6 °F2.25 in.
Annual41 °F59.3 °F38.97 in.

Climate Data for Addison Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
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