Prairie Grove Illinois Climate Data

Monthly Average Climate Data for Prairie Grove Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.8 °F29.5 °F1.82 in.
February16.6 °F33.3 °F1.87 in.
March26.1 °F44.7 °F2.21 in.
April36.6 °F57.9 °F3.75 in.
May47.5 °F69.4 °F4.79 in.
June57.6 °F79.2 °F4.96 in.
July62.4 °F83.2 °F3.97 in.
August60.8 °F81.3 °F3.94 in.
September52.8 °F74.6 °F3.54 in.
October40.9 °F61.5 °F3.15 in.
November30.2 °F47.1 °F2.42 in.
December20.0 °F34.9 °F2.02 in.
Annual38.8 °F58.1 °F38.44 in.

Climate Data for Prairie Grove 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 ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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