East Haddam Connecticut Climate Data

Monthly Average Climate Data for East Haddam Connecticut

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.7 °F35.9 °F3.96 in.
February20.9 °F38.5 °F3.4 in.
March27.8 °F46.1 °F4.7 in.
April37.7 °F58.4 °F4.57 in.
May47.0 °F68.5 °F3.75 in.
June56.6 °F77.0 °F4.5 in.
July62.1 °F82.2 °F3.84 in.
August60.9 °F80.9 °F4.35 in.
September53.5 °F74.1 °F4.52 in.
October42.8 °F62.7 °F5.06 in.
November33.4 °F51.6 °F4.16 in.
December25.9 °F41.8 °F4.73 in.
Annual40.7 °F59.8 °F51.54 in.

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 : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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