Rocky Hill Connecticut Climate Data

Monthly Average Climate Data for Rocky Hill Connecticut

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7 °C2.3 °C95.76 mm
February-6.3 °C3.8 °C82.55 mm
March-2.1 °C8.2 °C111 mm
April3.6 °C15.2 °C106.43 mm
May9.2 °C21.2 °C94.74 mm
June14.4 °C25.9 °C121.16 mm
July17.4 °C28.9 °C105.41 mm
August16.6 °C27.9 °C102.62 mm
September12.4 °C23.9 °C110.24 mm
October6.1 °C17.2 °C125.48 mm
November0.7 °C10.9 °C96.52 mm
December-3.7 °C5.3 °C111.51 mm
Annual5.1 °C15.9 °C1263.42 mm

Climate Data for Rocky Hill Connecticut

Average First Frost DateOct. 11 - Oct. 20
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 ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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