Portland International Jetport Weather Station of the U.S. Weather Service

Located in Portland in Cumberland County, Maine, Portland International Jetport is at an elevation of 45 feet and was established as a weather station on 01 Aug 1931.

From 1971 to 2000, the following average readings were recorded:

 - - - - - - - - - JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC YEAR Average High....... 30.9 34.1 42.2 52.8 63.3 72.8 78.8 77.3 68.9 57.9 47.1 36.4 55.2 Average Low........ 12.5 15.6 25.2 34.7 44.2 52.9 58.6 57.2 48.5 37.4 29.5 18.7 36.3 Monthly Precipitn.. 4.09 3.14 4.14 4.26 3.82 3.28 3.32 3.05 3.37 4.40 4.72 4.24 45.83 Heating Degree Days 1346 1145 988 649 361 116 19 37 199 523 790 1152 7325 Cooling Degree Days 0 0 0 0 7 51 144 120 24 1 0 0 347 

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