Harrisville Rhode Island Climate Data

Monthly Average Climate Data for Harrisville Rhode Island

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7.6 °C2.4 °C100.84 mm
February-6.8 °C3.8 °C89.15 mm
March-2.8 °C7.9 °C122.94 mm
April2.8 °C14.7 °C116.59 mm
May8.3 °C20.6 °C91.95 mm
June13.5 °C25.1 °C108.97 mm
July16.9 °C28.2 °C96.27 mm
August15.9 °C27.2 °C107.44 mm
September12 °C23.3 °C103.63 mm
October5.8 °C16.9 °C129.03 mm
November0.4 °C10.9 °C105.41 mm
December-4.3 °C5.3 °C125.73 mm
Annual4.5 °C15.5 °C1297.95 mm

Climate Data for Harrisville Rhode Island

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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