Penobscot Maine Climate Data

Monthly Average Climate Data for Penobscot Maine

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January10.5 °F29.4 °F3.86 in.
February12.2 °F32.1 °F3.26 in.
March21.7 °F39.7 °F4.05 in.
April32.3 °F51.6 °F4.33 in.
May42.4 °F63.1 °F3.79 in.
June51.6 °F72.2 °F4.12 in.
July57.9 °F78.0 °F3.22 in.
August56.7 °F77.4 °F3.24 in.
September49.4 °F70.0 °F3.83 in.
October39.0 °F57.7 °F5.22 in.
November29.8 °F46.1 °F4.68 in.
December18.7 °F35.4 °F4.69 in.
Annual35.2 °F54.4 °F48.29 in.

Climate Data for Penobscot Maine

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year