West Hartford Connecticut Climate Data

Monthly Average Climate Data for West Hartford Connecticut

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7.3 °C2.2 °C97.54 mm
February-6.6 °C3.7 °C85.34 mm
March-2.3 °C8.2 °C111.76 mm
April3.5 °C15.3 °C110.49 mm
May9.3 °C21.3 °C104.9 mm
June14.5 °C26 °C128.27 mm
July17.5 °C29 °C111.76 mm
August16.6 °C28.1 °C117.35 mm
September12.4 °C24.1 °C123.19 mm
October6 °C17.3 °C143.76 mm
November0.6 °C10.9 °C105.92 mm
December-3.9 °C5.2 °C121.16 mm
Annual5 °C15.9 °C1361.44 mm

Climate Data for West Hartford Connecticut

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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