Columbia Connecticut Climate Data

Monthly Average Climate Data for Columbia Connecticut

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.0 °F35.5 °F3.79 in.
February19.0 °F38.0 °F3.26 in.
March26.5 °F45.7 °F4.53 in.
April36.3 °F57.7 °F4.42 in.
May45.9 °F68.1 °F3.63 in.
June55.3 °F76.4 °F4.29 in.
July61.0 °F81.6 °F3.98 in.
August59.3 °F80.1 °F4.32 in.
September52.3 °F73.3 °F4.48 in.
October41.3 °F61.7 °F4.93 in.
November32.0 °F51.0 °F4.02 in.
December24.4 °F41.1 °F4.6 in.
Annual39.3 °F59.2 °F50.25 in.

Climate Data for Columbia Connecticut

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
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