Washington Connecticut Climate Data

Monthly Average Climate Data for Washington Connecticut

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8.6 °C1.8 °C86.36 mm
February-7.6 °C3.4 °C72.9 mm
March-3.7 °C7.7 °C103.38 mm
April2.1 °C14.8 °C96.77 mm
May7.8 °C20.7 °C102.36 mm
June12.9 °C25.1 °C114.3 mm
July15.9 °C27.7 °C118.36 mm
August15.2 °C26.8 °C121.92 mm
September11.2 °C22.7 °C114.55 mm
October4.8 °C16.4 °C128.52 mm
November-0.4 °C10.4 °C96.27 mm
December-5.1 °C4.3 °C109.73 mm
Annual3.7 °C15.2 °C1265.42 mm

Climate Data for Washington 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 6a : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
2024 plantmaps.com