Norfolk Connecticut Climate Data

Monthly Average Climate Data for Norfolk Connecticut

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-10 °C-0.2 °C98.3 mm
February-9.2 °C1.4 °C84.58 mm
March-5 °C5.8 °C105.41 mm
April0.9 °C13.5 °C99.06 mm
May6.9 °C19.7 °C104.65 mm
June12.2 °C24.1 °C125.22 mm
July14.9 °C26.8 °C121.16 mm
August14.4 °C25.8 °C119.89 mm
September10.2 °C21.6 °C125.98 mm
October3.8 °C15 °C133.35 mm
November-1.4 °C8.6 °C103.63 mm
December-6.2 °C2.6 °C122.68 mm
Annual2.6 °C13.7 °C1343.91 mm

Climate Data for Norfolk 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 : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
2024 plantmaps.com