Foster Rhode Island Climate Data

Monthly Average Climate Data for Foster Rhode Island

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7.4 °C1.7 °C109.22 mm
February-7.1 °C3 °C92.96 mm
March-3.2 °C7.1 °C128.27 mm
April2.2 °C14.1 °C119.89 mm
May7.7 °C20 °C93.98 mm
June12.9 °C24 °C112.52 mm
July16.1 °C27.1 °C95.5 mm
August15.3 °C25.9 °C113.79 mm
September11.4 °C22.1 °C108.2 mm
October5.5 °C15.8 °C130.3 mm
November0.2 °C10 °C110.74 mm
December-4.3 °C4.4 °C129.54 mm
Annual4.1 °C14.6 °C1344.91 mm

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 : -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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