Terryville Connecticut Climate Data

Monthly Average Climate Data for Terryville Connecticut

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8.4 °C1.9 °C97.03 mm
February-7.7 °C3.6 °C84.58 mm
March-3.7 °C7.9 °C118.62 mm
April2.1 °C15.3 °C105.41 mm
May7.8 °C21.3 °C107.44 mm
June12.9 °C26 °C117.86 mm
July15.9 °C28.7 °C120.9 mm
August15.1 °C27.6 °C118.11 mm
September11 °C23.6 °C121.67 mm
October4.7 °C16.9 °C142.75 mm
November-0.6 °C10.5 °C105.66 mm
December-4.9 °C4.6 °C119.89 mm
Annual3.7 °C15.7 °C1359.92 mm

Climate Data for Terryville 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 6a : -23.3°C to -20.6°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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