Inverness Illinois Climate Data

Monthly Average Climate Data for Inverness Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January14.6 °F30.4 °F1.99 in.
February17.3 °F34.3 °F1.95 in.
March26.8 °F46.0 °F2.25 in.
April37.0 °F58.4 °F3.78 in.
May47.9 °F69.8 °F4.84 in.
June57.9 °F79.8 °F4.61 in.
July63.0 °F84.0 °F3.8 in.
August61.5 °F81.7 °F4.19 in.
September53.5 °F74.8 °F3.43 in.
October41.6 °F62.0 °F3.29 in.
November30.5 °F47.6 °F2.43 in.
December20.6 °F35.5 °F2.14 in.
Annual39.4 °F58.7 °F38.7 in.

Climate Data for Inverness Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°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
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