Newtown Connecticut Climate Data

Monthly Average Climate Data for Newtown Connecticut

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.5 °F36.0 °F3.92 in.
February19.9 °F38.8 °F3.14 in.
March27.1 °F46.7 °F4.37 in.
April37.5 °F59.2 °F4.11 in.
May47.6 °F70.2 °F3.96 in.
June56.9 °F78.5 °F4.71 in.
July62.4 °F83.6 °F4.53 in.
August60.8 °F81.6 °F4.62 in.
September53.5 °F74.5 °F4.66 in.
October41.8 °F62.8 °F4.86 in.
November32.2 °F51.4 °F4.18 in.
December24.4 °F40.8 °F4.45 in.
Annual40.2 °F60.3 °F51.51 in.

Climate Data for Newtown Connecticut

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
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 ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation