New Milford Connecticut Climate Data

Monthly Average Climate Data for New Milford Connecticut

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.5 °F35.6 °F3.41 in.
February19.2 °F38.8 °F2.81 in.
March26.7 °F46.8 °F3.82 in.
April36.8 °F60.1 °F3.83 in.
May47.4 °F70.9 °F3.82 in.
June56.5 °F79.4 °F4.56 in.
July61.8 °F84.3 °F4.4 in.
August60.5 °F82.4 °F4.86 in.
September52.7 °F75.0 °F4.54 in.
October40.9 °F63.1 °F4.96 in.
November31.1 °F51.5 °F3.79 in.
December23.5 °F40.2 °F4.18 in.
Annual39.6 °F60.7 °F48.98 in.

Climate Data for New Milford Connecticut

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
2025 plantmaps.com