Bethany Connecticut Climate Data

Monthly Average Climate Data for Bethany Connecticut

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7.2 °C2 °C102.11 mm
February-6.4 °C3.4 °C87.88 mm
March-2.4 °C7.8 °C121.92 mm
April3.3 °C14.7 °C110.49 mm
May8.7 °C20.7 °C110.49 mm
June13.9 °C25.4 °C114.3 mm
July16.9 °C28.2 °C107.19 mm
August16.2 °C27.2 °C107.95 mm
September12.3 °C23.2 °C119.63 mm
October5.8 °C16.8 °C139.19 mm
November0.7 °C10.5 °C107.19 mm
December-3.9 °C4.7 °C117.09 mm
Annual4.8 °C15.4 °C1345.43 mm

Climate Data for Bethany Connecticut

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
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 ConditionsSevere Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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