Matherville Illinois Climate Data

Monthly Average Climate Data for Matherville Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January14.2 °F30.4 °F1.57 in.
February17.6 °F34.9 °F1.81 in.
March28.3 °F48.2 °F2.43 in.
April39.2 °F61.4 °F3.78 in.
May51.2 °F72.2 °F4.92 in.
June61.0 °F81.1 °F4.77 in.
July64.6 °F84.2 °F4.03 in.
August62.4 °F82.4 °F3.84 in.
September54.2 °F76.5 °F3.67 in.
October42.4 °F63.6 °F2.86 in.
November30.5 °F48.7 °F2.32 in.
December20.2 °F35.9 °F1.97 in.
Annual40.5 °F60 °F37.97 in.

Climate Data for Matherville Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
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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