East Haddam Connecticut Climate Data

Monthly Average Climate Data for East Haddam Connecticut

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-6.8 °C2.2 °C100.58 mm
February-6.2 °C3.6 °C86.36 mm
March-2.3 °C7.8 °C119.38 mm
April3.2 °C14.7 °C116.08 mm
May8.3 °C20.3 °C95.25 mm
June13.7 °C25 °C114.3 mm
July16.7 °C27.9 °C97.54 mm
August16.1 °C27.2 °C110.49 mm
September11.9 °C23.4 °C114.81 mm
October6 °C17.1 °C128.52 mm
November0.8 °C10.9 °C105.66 mm
December-3.4 °C5.4 °C120.14 mm
Annual4.8 °C15.5 °C1309.11 mm

Climate Data for East Haddam Connecticut

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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