Litchfield Connecticut Climate Data

Monthly Average Climate Data for Litchfield Connecticut

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.2 °C0.7 °C93.47 mm
February-8.2 °C2.4 °C80.52 mm
March-4.2 °C6.8 °C113.03 mm
April1.7 °C14 °C100.84 mm
May7.6 °C20 °C105.41 mm
June12.8 °C24.4 °C120.65 mm
July15.6 °C27.2 °C120.65 mm
August14.9 °C26.2 °C123.95 mm
September10.9 °C22.1 °C125.98 mm
October4.7 °C15.6 °C140.21 mm
November-0.7 °C9.4 °C102.87 mm
December-5.7 °C3.3 °C118.62 mm
Annual3.4 °C14.3 °C1346.2 mm

Climate Data for Litchfield 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 ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation