Colebrook Connecticut Climate Data

Monthly Average Climate Data for Colebrook Connecticut

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.4 °C0.1 °C93.73 mm
February-8.7 °C1.6 °C83.57 mm
March-4.5 °C6.1 °C107.7 mm
April1.3 °C13.5 °C102.11 mm
May7.2 °C19.7 °C107.7 mm
June12.2 °C24.1 °C123.44 mm
July14.9 °C26.7 °C118.62 mm
August13.8 °C25.8 °C116.33 mm
September9.9 °C21.8 °C125.48 mm
October4.4 °C15.2 °C138.18 mm
November-0.9 °C8.4 °C101.6 mm
December-5.8 °C3 °C117.35 mm
Annual2.9 °C13.8 °C1335.81 mm

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 : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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