Broad Brook Connecticut Climate Data

Monthly Average Climate Data for Broad Brook Connecticut

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7.7 °C1.9 °C87.63 mm
February-6.9 °C3.4 °C77.72 mm
March-2.4 °C7.9 °C104.14 mm
April3.5 °C15.2 °C104.39 mm
May9.2 °C21.3 °C91.69 mm
June14.3 °C25.9 °C111.25 mm
July17.3 °C28.9 °C103.38 mm
August16.4 °C28.1 °C105.41 mm
September12.2 °C24.1 °C113.79 mm
October5.8 °C17.3 °C123.7 mm
November0.3 °C10.8 °C93.73 mm
December-4.2 °C4.9 °C111 mm
Annual4.8 °C15.8 °C1227.83 mm

Climate Data for Broad Brook Connecticut

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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