Newcastle Maine Climate Data

Monthly Average Climate Data for Newcastle Maine

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January11.4 °F30.6 °F3.84 in.
February13.4 °F33.6 °F3.52 in.
March22.6 °F41.1 °F4.3 in.
April32.8 °F52.8 °F4.42 in.
May43.2 °F63.8 °F3.79 in.
June52.5 °F72.4 °F4.46 in.
July58.6 °F78.3 °F3.49 in.
August57.3 °F77.6 °F3.22 in.
September50.1 °F70.3 °F4.01 in.
October39.2 °F58.3 °F5.39 in.
November29.6 °F47.1 °F4.61 in.
December19.1 °F36.5 °F4.78 in.
Annual35.8 °F55.2 °F49.83 in.

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