Barrington Illinois Climate Data

Monthly Average Climate Data for Barrington Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January14.5 °F30.3 °F1.97 in.
February17.2 °F34.2 °F1.94 in.
March26.7 °F45.7 °F2.25 in.
April37.0 °F58.3 °F3.8 in.
May47.9 °F69.6 °F4.91 in.
June57.8 °F79.6 °F4.69 in.
July62.9 °F83.8 °F3.86 in.
August61.5 °F81.5 °F4.19 in.
September53.3 °F74.7 °F3.49 in.
October41.7 °F61.9 °F3.28 in.
November30.6 °F47.6 °F2.45 in.
December20.5 °F35.5 °F2.15 in.
Annual39.3 °F58.6 °F38.98 in.

Climate Data for Barrington 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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