Foster Rhode Island Climate Data

Monthly Average Climate Data for Foster Rhode Island

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.7 °F35.1 °F4.3 in.
February19.3 °F37.4 °F3.66 in.
March26.2 °F44.8 °F5.05 in.
April36.0 °F57.4 °F4.72 in.
May45.9 °F68.0 °F3.7 in.
June55.2 °F75.2 °F4.43 in.
July60.9 °F80.7 °F3.76 in.
August59.5 °F78.7 °F4.48 in.
September52.6 °F71.7 °F4.26 in.
October41.9 °F60.4 °F5.13 in.
November32.3 °F50.0 °F4.36 in.
December24.2 °F39.9 °F5.1 in.
Annual39.4 °F58.3 °F52.95 in.

Climate Data for Foster 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 : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year