Charlestown Rhode Island Climate Data

Monthly Average Climate Data for Charlestown Rhode Island

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January23.8 °F38.4 °F4.05 in.
February24.9 °F39.9 °F3.59 in.
March30.6 °F45.7 °F5.21 in.
April39.5 °F55.3 °F4.62 in.
May48.7 °F64.7 °F3.49 in.
June58.3 °F73.6 °F3.75 in.
July64.5 °F79.4 °F3.07 in.
August63.9 °F78.7 °F3.78 in.
September58.2 °F73.1 °F3.71 in.
October48.0 °F62.9 °F4.75 in.
November38.3 °F53.1 °F4.18 in.
December30.2 °F44.1 °F4.89 in.
Annual44.1 °F59.1 °F49.09 in.

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 : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year