Bristol Maine Climate Data

Monthly Average Climate Data for Bristol Maine

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7.3 °C0.2 °C100.58 mm
February-6.9 °C1.1 °C91.69 mm
March-3.1 °C4.4 °C114.05 mm
April1.8 °C10.1 °C111 mm
May6.8 °C15.5 °C93.73 mm
June11.7 °C20.2 °C107.7 mm
July14.8 °C23.4 °C86.36 mm
August14.8 °C23.4 °C78.49 mm
September11.7 °C19.9 °C103.63 mm
October6.7 °C13.9 °C129.79 mm
November1.7 °C8.6 °C114.05 mm
December-3.7 °C3.4 °C121.67 mm
Annual4.1 °C12 °C1252.74 mm

Climate Data for Bristol Maine

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6a : -23.3°C to -20.6°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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