North Stonington Connecticut Climate Data

Monthly Average Climate Data for North Stonington Connecticut

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.8 °F36.9 °F3.91 in.
February20.4 °F39.1 °F3.44 in.
March27.4 °F46.9 °F4.92 in.
April36.9 °F58.5 °F4.62 in.
May46.9 °F68.4 °F3.52 in.
June56.3 °F76.8 °F3.86 in.
July62.5 °F81.5 °F3.39 in.
August60.8 °F80.0 °F4.02 in.
September53.3 °F73.5 °F4.28 in.
October42.3 °F62.3 °F4.81 in.
November32.6 °F52.1 °F4.1 in.
December24.9 °F42.3 °F4.87 in.
Annual40.3 °F59.9 °F49.74 in.

Climate Data for North Stonington Connecticut

Average First Frost DateOct. 11 - Oct. 20
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