Brimfield Illinois Climate Data

Monthly Average Climate Data for Brimfield Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January14.4 °F31.5 °F1.96 in.
February17.9 °F36.1 °F1.97 in.
March28.0 °F48.9 °F2.48 in.
April38.7 °F62.2 °F3.71 in.
May50.7 °F73.0 °F4.96 in.
June60.5 °F81.7 °F4.52 in.
July63.7 °F84.6 °F3.98 in.
August61.4 °F83.0 °F3.56 in.
September53.0 °F77.3 °F3.62 in.
October41.3 °F64.7 °F2.96 in.
November30.0 °F49.6 °F2.54 in.
December20.3 °F36.9 °F2.0 in.
Annual40 °F60.8 °F38.26 in.

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