Bethany Connecticut Climate Data

Monthly Average Climate Data for Bethany Connecticut

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.0 °F35.6 °F4.02 in.
February20.4 °F38.1 °F3.46 in.
March27.6 °F46.0 °F4.8 in.
April37.9 °F58.4 °F4.35 in.
May47.7 °F69.3 °F4.35 in.
June57.0 °F77.8 °F4.5 in.
July62.4 °F82.8 °F4.22 in.
August61.1 °F80.9 °F4.25 in.
September54.1 °F73.8 °F4.71 in.
October42.5 °F62.2 °F5.48 in.
November33.2 °F50.9 °F4.22 in.
December24.9 °F40.5 °F4.61 in.
Annual40.7 °F59.7 °F52.97 in.

Climate Data for Bethany 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 ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation