Waterbury Connecticut Climate Data

Monthly Average Climate Data for Waterbury Connecticut

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.8 °F36.5 °F3.85 in.
February20.0 °F39.2 °F3.31 in.
March27.3 °F47.1 °F4.57 in.
April37.4 °F59.6 °F4.18 in.
May47.6 °F70.7 °F4.15 in.
June56.9 °F79.0 °F4.57 in.
July62.4 °F84.4 °F4.5 in.
August60.8 °F82.4 °F4.37 in.
September53.5 °F75.5 °F4.66 in.
October42.0 °F63.6 °F5.36 in.
November32.4 °F51.9 °F4.13 in.
December24.6 °F41.5 °F4.63 in.
Annual40.3 °F61 °F52.28 in.

Climate Data for Waterbury Connecticut

Average First Frost DateNov. 11 - Nov. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost100-125 Days
Plant Hardiness ZoneZone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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