Niantic Connecticut Climate Data

Monthly Average Climate Data for Niantic Connecticut

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January24.0 °F38.6 °F3.8 in.
February24.9 °F40.2 °F3.35 in.
March30.8 °F46.3 °F4.76 in.
April39.8 °F56.0 °F4.63 in.
May48.8 °F65.0 °F3.79 in.
June58.4 °F74.0 °F4.12 in.
July65.1 °F79.8 °F3.36 in.
August64.6 °F78.7 °F3.92 in.
September58.6 °F73.3 °F4.29 in.
October48.4 °F63.0 °F4.75 in.
November38.7 °F53.5 °F4.04 in.
December30.3 °F44.3 °F4.75 in.
Annual44.4 °F59.4 °F49.56 in.

Climate Data for Niantic 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 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year