Climate for Portland, Maine

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Average Temperatures for Portland

Average Temperature for Portland, Maine
MonthLowHigh
Jan12.5°F30.9°F
Feb15.6°F34.1°F
Mar25.2°F42.2°F
Apr34.7°F52.8°F
May44.2°F63.3°F
Jun52.9°F72.8°F
Jul58.6°F78.8°F
Aug57.2°F77.3°F
Sept48.5°F68.9°F
Oct37.4°F57.9°F
Nov29.5°F47.1°F
Dec18.7°F36.4°F

Portland's coldest month is January when the average temperature overnight is 12.5°F. In July, the warmest month, the average day time temperature rises to 78.8°F.

Average Rainfall for Portland

Average Rainfall for Portland, Maine
MonthPrecipitation
Jan4.09in.
Feb3.14in.
Mar4.14in.
Apr4.26in.
May3.82in.
Jun3.28in.
Jul3.32in.
Aug3.05in.
Sept3.37in.
Oct4.40in.
Nov4.72in.
Dec4.24in.

The driest month in Portland is August with 3.05 inches of precipitation, and with 4.72 inches November is the wettest month.

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