Wilsonville Illinois Climate Data

Monthly Average Climate Data for Wilsonville Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January21.1 °F36.8 °F2.54 in.
February24.7 °F42.1 °F2.25 in.
March33.5 °F53.0 °F3.16 in.
April44.0 °F65.0 °F4.76 in.
May55.1 °F74.7 °F5.04 in.
June64.0 °F83.4 °F4.35 in.
July67.4 °F86.4 °F3.96 in.
August65.2 °F85.5 °F3.5 in.
September56.9 °F79.7 °F3.32 in.
October45.4 °F67.7 °F3.25 in.
November34.9 °F53.3 °F3.49 in.
December26.0 °F41.7 °F2.61 in.
Annual44.9 °F64.1 °F42.23 in.

Climate Data for Wilsonville Illinois

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
2024 plantmaps.com