Waynesville Illinois Climate Data

Monthly Average Climate Data for Waynesville Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.3 °F33.7 °F2.25 in.
February20.5 °F38.6 °F2.0 in.
March29.7 °F50.3 °F2.71 in.
April40.6 °F63.4 °F3.89 in.
May52.2 °F73.8 °F4.42 in.
June61.6 °F82.6 °F4.49 in.
July64.5 °F85.6 °F4.12 in.
August62.6 °F83.8 °F3.58 in.
September54.5 °F78.8 °F3.27 in.
October42.9 °F65.9 °F3.37 in.
November31.9 °F51.1 °F2.89 in.
December22.9 °F38.8 °F2.35 in.
Annual41.8 °F62.2 °F39.34 in.

Climate Data for Waynesville 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
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