Colebrook Connecticut Climate Data

Monthly Average Climate Data for Colebrook Connecticut

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.0 °F32.2 °F3.69 in.
February16.3 °F34.8 °F3.29 in.
March23.9 °F43.0 °F4.24 in.
April34.3 °F56.3 °F4.02 in.
May45.0 °F67.4 °F4.24 in.
June54.0 °F75.3 °F4.86 in.
July58.8 °F80.1 °F4.67 in.
August56.9 °F78.5 °F4.58 in.
September49.9 °F71.3 °F4.94 in.
October39.9 °F59.3 °F5.44 in.
November30.3 °F47.2 °F4.0 in.
December21.6 °F37.4 °F4.62 in.
Annual37.2 °F56.9 °F52.59 in.

Climate Data for Colebrook Connecticut

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year