Bangor Maine Climate Data

Monthly Average Climate Data for Bangor Maine

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.5 °F28.1 °F3.32 in.
February9.4 °F31.0 °F2.98 in.
March20.2 °F39.4 °F3.8 in.
April31.6 °F52.1 °F3.92 in.
May42.0 °F64.6 °F3.41 in.
June51.1 °F73.7 °F3.96 in.
July57.5 °F79.4 °F3.25 in.
August55.6 °F78.4 °F3.34 in.
September47.9 °F70.4 °F3.87 in.
October37.1 °F57.3 °F4.75 in.
November28.2 °F45.4 °F4.03 in.
December16.7 °F34.3 °F4.62 in.
Annual33.7 °F54.5 °F45.25 in.

Climate Data for Bangor 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 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year