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Climate & Weather Averages in Portland, Maine, USA

Now
60 °F

Sunny.


Feels Like: 60 °F
Forecast: 62 / 53 °F
Wind: 7 mph from North

Location: Portland - Portland International Jetport

Current Time: May 27, 2019 at 7:23:27 am

Latest Report: May 27, 2019 at 6:51 am


Visibility: 10 mi

Pressure: 29.88 "Hg

Humidity: 75%

Dew Point: 52 °F

Location of PortlandLocation

Annual Weather Averages in Portland

Based on weather reports collected during 1985–2015.

All Year Climate & Weather Averages in Portland

High Temp: 79 °F

Low Temp: 15 °F

Mean Temp: 47 °F

Precipitation: 1.89"

Humidity: 70%

Dew Point: 37 °F

Wind: 7 mph

Pressure: 30.02 "Hg

Visibility: 9 mi

January Climate & Weather Averages in Portland

High Temp: 32 °F

Low Temp: 15 °F

Mean Temp: 23 °F

Precipitation: 1.70"

Humidity: 68%

Dew Point: 14 °F

Wind: 7 mph

Pressure: 30.05 "Hg

Visibility: 9 mi

February Climate & Weather Averages in Portland

High Temp: 34 °F

Low Temp: 16 °F

Mean Temp: 25 °F

Precipitation: 1.67"

Humidity: 64%

Dew Point: 14 °F

Wind: 8 mph

Pressure: 30.03 "Hg

Visibility: 10 mi

March Climate & Weather Averages in Portland

High Temp: 42 °F

Low Temp: 25 °F

Mean Temp: 33 °F

Precipitation: 1.92"

Humidity: 65%

Dew Point: 22 °F

Wind: 8 mph

Pressure: 30.06 "Hg

Visibility: 9 mi

April Climate & Weather Averages in Portland

High Temp: 53 °F

Low Temp: 35 °F

Mean Temp: 44 °F

Precipitation: 2.12"

Humidity: 65%

Dew Point: 32 °F

Wind: 8 mph

Pressure: 29.99 "Hg

Visibility: 10 mi

May Climate & Weather Averages in Portland

High Temp: 64 °F

Low Temp: 45 °F

Mean Temp: 54 °F

Precipitation: 2.15"

Humidity: 70%

Dew Point: 44 °F

Wind: 7 mph

Pressure: 30.00 "Hg

Visibility: 9 mi

June Climate & Weather Averages in Portland

High Temp: 73 °F

Low Temp: 54 °F

Mean Temp: 63 °F

Precipitation: 2.08"

Humidity: 73%

Dew Point: 54 °F

Wind: 6 mph

Pressure: 29.94 "Hg

Visibility: 9 mi

July Climate & Weather Averages in Portland

High Temp: 79 °F

Low Temp: 60 °F

Mean Temp: 69 °F

Precipitation: 1.97"

Humidity: 74%

Dew Point: 60 °F

Wind: 6 mph

Pressure: 29.94 "Hg

Visibility: 9 mi

August Climate & Weather Averages in Portland

High Temp: 78 °F

Low Temp: 59 °F

Mean Temp: 68 °F

Precipitation: 1.15"

Humidity: 75%

Dew Point: 60 °F

Wind: 5 mph

Pressure: 29.99 "Hg

Visibility: 9 mi

September Climate & Weather Averages in Portland

High Temp: 70 °F

Low Temp: 51 °F

Mean Temp: 60 °F

Precipitation: 1.65"

Humidity: 76%

Dew Point: 53 °F

Wind: 6 mph

Pressure: 30.05 "Hg

Visibility: 9 mi

October Climate & Weather Averages in Portland

High Temp: 59 °F

Low Temp: 39 °F

Mean Temp: 49 °F

Precipitation: 2.07"

Humidity: 74%

Dew Point: 41 °F

Wind: 7 mph

Pressure: 30.06 "Hg

Visibility: 9 mi

November Climate & Weather Averages in Portland

High Temp: 48 °F

Low Temp: 31 °F

Mean Temp: 39 °F

Precipitation: 2.09"

Humidity: 70%

Dew Point: 30 °F

Wind: 7 mph

Pressure: 30.08 "Hg

Visibility: 9 mi

December Climate & Weather Averages in Portland

High Temp: 38 °F

Low Temp: 21 °F

Mean Temp: 30 °F

Precipitation: 2.14"

Humidity: 70%

Dew Point: 20 °F

Wind: 7 mph

Pressure: 30.08 "Hg

Visibility: 9 mi

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Quick Climate Info

Hottest MonthJuly (69 °F avg)
Coldest MonthJanuary (23 °F avg)
Wettest MonthMay (2.15" avg)
Windiest MonthMarch (8 mph avg)
Annual Rainfall22.72" (per year)

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