Newcastle Maine Climate Data

Monthly Average Climate Data for Newcastle Maine

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-11.4 °C-0.8 °C97.54 mm
February-10.3 °C0.9 °C89.41 mm
March-5.2 °C5.1 °C109.22 mm
April0.4 °C11.6 °C112.27 mm
May6.2 °C17.7 °C96.27 mm
June11.4 °C22.4 °C113.28 mm
July14.8 °C25.7 °C88.65 mm
August14.1 °C25.3 °C81.79 mm
September10.1 °C21.3 °C101.85 mm
October4 °C14.6 °C136.91 mm
November-1.3 °C8.4 °C117.09 mm
December-7.2 °C2.5 °C121.41 mm
Annual2.1 °C12.9 °C1265.69 mm

Climate Data for Newcastle 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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