Neponset Illinois Climate Data

Monthly Average Climate Data for Neponset Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.5 °F29.7 °F1.84 in.
February16.8 °F34.2 °F1.94 in.
March27.0 °F46.9 °F2.41 in.
April37.7 °F60.0 °F3.81 in.
May49.7 °F71.0 °F4.94 in.
June59.7 °F79.9 °F4.8 in.
July62.7 °F83.0 °F3.89 in.
August60.5 °F81.4 °F3.81 in.
September52.0 °F75.7 °F3.58 in.
October40.6 °F63.1 °F2.93 in.
November29.3 °F48.1 °F2.48 in.
December19.4 °F35.2 °F2.05 in.
Annual39.1 °F59 °F38.48 in.

Climate Data for Neponset 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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