Blue Hills Connecticut Climate Data

Monthly Average Climate Data for Blue Hills Connecticut

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7.2 °C2.2 °C94.49 mm
February-6.5 °C3.7 °C83.31 mm
March-2.2 °C8.2 °C110.49 mm
April3.7 °C15.3 °C106.68 mm
May9.5 °C21.3 °C97.79 mm
June14.6 °C26.1 °C121.41 mm
July17.7 °C29.1 °C108.46 mm
August16.7 °C28.1 °C111.25 mm
September12.6 °C24.1 °C120.9 mm
October6.2 °C17.3 °C139.19 mm
November0.7 °C10.9 °C103.12 mm
December-3.8 °C5.1 °C118.62 mm
Annual5.2 °C16 °C1315.71 mm

Climate Data for Blue Hills 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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