Bethel Connecticut Climate Data

Monthly Average Climate Data for Bethel Connecticut

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.9 °F36.2 °F3.92 in.
February20.6 °F39.1 °F3.03 in.
March27.8 °F46.8 °F4.15 in.
April38.1 °F59.6 °F3.98 in.
May48.1 °F70.4 °F3.82 in.
June57.5 °F78.6 °F4.69 in.
July63.0 °F83.8 °F4.52 in.
August61.4 °F81.8 °F4.73 in.
September54.0 °F74.7 °F4.82 in.
October42.4 °F63.0 °F4.79 in.
November32.5 °F51.7 °F4.18 in.
December24.7 °F41.0 °F4.55 in.
Annual40.8 °F60.6 °F51.18 in.

Climate Data for Bethel 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