Staunton Illinois Climate Data

Monthly Average Climate Data for Staunton Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January21.2 °F37.1 °F2.58 in.
February24.7 °F42.3 °F2.29 in.
March33.5 °F53.2 °F3.18 in.
April44.1 °F65.1 °F4.81 in.
May55.1 °F74.8 °F5.07 in.
June64.0 °F83.5 °F4.4 in.
July67.4 °F86.5 °F4.05 in.
August65.3 °F85.6 °F3.5 in.
September56.8 °F79.8 °F3.34 in.
October45.4 °F67.8 °F3.25 in.
November34.8 °F53.3 °F3.55 in.
December26.0 °F41.8 °F2.66 in.
Annual44.9 °F64.2 °F42.68 in.

Climate Data for Staunton 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 ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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