Charlestown Rhode Island Climate Data

Monthly Average Climate Data for Charlestown Rhode Island

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-4.6 °C3.6 °C102.87 mm
February-3.9 °C4.4 °C91.19 mm
March-0.8 °C7.6 °C132.33 mm
April4.2 °C12.9 °C117.35 mm
May9.3 °C18.2 °C88.65 mm
June14.6 °C23.1 °C95.25 mm
July18.1 °C26.3 °C77.98 mm
August17.7 °C25.9 °C96.01 mm
September14.6 °C22.8 °C94.23 mm
October8.9 °C17.2 °C120.65 mm
November3.5 °C11.7 °C106.17 mm
December-1 °C6.7 °C124.21 mm
Annual6.7 °C15 °C1246.89 mm

Climate Data for Charlestown Rhode Island

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 7a : -17.8°C to -15°C
Plant Hardiness Zone - 2012Zone 7a : -17.8°C to -15°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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