Litchfield Connecticut Climate Data

Monthly Average Climate Data for Litchfield Connecticut

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.4 °F33.3 °F3.68 in.
February17.3 °F36.3 °F3.17 in.
March24.5 °F44.2 °F4.45 in.
April35.1 °F57.2 °F3.97 in.
May45.7 °F68.0 °F4.15 in.
June55.0 °F76.0 °F4.75 in.
July60.1 °F80.9 °F4.75 in.
August58.9 °F79.2 °F4.88 in.
September51.7 °F71.8 °F4.96 in.
October40.4 °F60.1 °F5.52 in.
November30.8 °F48.9 °F4.05 in.
December21.8 °F38.0 °F4.67 in.
Annual38.1 °F57.8 °F53 in.

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 : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation