Franklin Connecticut Climate Data

Monthly Average Climate Data for Franklin Connecticut

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.0 °F37.1 °F3.62 in.
February20.8 °F39.8 °F3.16 in.
March28.0 °F47.5 °F4.49 in.
April37.8 °F59.9 °F4.28 in.
May47.6 °F70.0 °F3.21 in.
June56.8 °F78.4 °F3.44 in.
July63.1 °F83.5 °F3.65 in.
August61.3 °F82.2 °F4.06 in.
September53.2 °F74.9 °F4.05 in.
October42.5 °F63.7 °F4.58 in.
November33.0 °F52.6 °F3.91 in.
December25.3 °F42.7 °F4.58 in.
Annual40.7 °F61 °F47.03 in.

Climate Data for Franklin Connecticut

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year