North Haven Connecticut Climate Data

Monthly Average Climate Data for North Haven Connecticut

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January20.5 °F37.1 °F3.82 in.
February21.8 °F39.3 °F3.34 in.
March29.3 °F46.9 °F4.44 in.
April39.3 °F59.1 °F4.41 in.
May49.2 °F69.7 °F4.06 in.
June58.7 °F78.4 °F4.6 in.
July64.5 °F84.2 °F4.03 in.
August63.0 °F82.4 °F4.15 in.
September55.7 °F76.1 °F4.54 in.
October43.9 °F64.2 °F5.27 in.
November34.1 °F52.4 °F3.95 in.
December26.2 °F42.4 °F4.67 in.
Annual42.2 °F61 °F51.28 in.

Climate Data for North Haven Connecticut

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost75-100 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 ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation