Danbury Connecticut Climate Data

Monthly Average Climate Data for Danbury Connecticut

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7.3 °C2.3 °C99.57 mm
February-6.4 °C3.8 °C76.2 mm
March-2.4 °C8.2 °C104.65 mm
April3.3 °C15.3 °C100.33 mm
May8.9 °C21.2 °C96.52 mm
June14.1 °C25.8 °C117.86 mm
July17.2 °C28.6 °C115.57 mm
August16.3 °C27.6 °C119.63 mm
September12.2 °C23.6 °C121.92 mm
October5.7 °C17.2 °C121.92 mm
November0.3 °C10.9 °C106.43 mm
December-4.1 °C4.9 °C115.06 mm
Annual4.8 °C15.8 °C1295.66 mm

Climate Data for Danbury Connecticut

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost100-125 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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