Porter, ME climate
Porter has cold, snowy winters and pleasant summers, with plenty of rain. A typical July afternoon reaches 80°, a January night drops to 10°, and about 84 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Porter feels like
Winter
Spring
Summer
Fall
Porter weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 29° | 10° | 3.3" | 20.1" | 11 | 30 | 9° – 28° |
| February | 33° | 11° | 3.0" | 21.8" | 9 | 28 | 9° – 28° |
| March | 41° | 20° | 3.8" | 15.9" | 10 | 25 | 22° – 39° |
| April | 55° | 31° | 4.2" | 4.5" | 11 | 6 | 39° – 48° |
| May | 67° | 42° | 3.8" | 0 | 13 | 0 | 49° – 59° |
| June | 75° | 51° | 4.4" | 0 | 14 | 0 | 60° – 67° |
| July | 80° | 56° | 4.1" | 0 | 14 | 0 | 64° – 71° |
| August | 79° | 55° | 4.0" | 0 | 11 | 0 | 64° – 70° |
| September | 71° | 47° | 3.7" | 0 | 11 | 0 | 54° – 63° |
| October | 58° | 37° | 5.3" | 0.3" | 13 | 0 | 43° – 54° |
| November | 46° | 27° | 4.2" | 4.5" | 12 | 4 | 31° – 41° |
| December | 35° | 17° | 4.1" | 16.9" | 12 | 20 | 20° – 35° |
| Year | 56° | 34° | 47.9" | 84.0" | 142 | 113 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Porter
Porter gets 48 inches of rain and melted snow a year. October is the wettest month and February the driest. Rain or snow falls on about 142 days a year. Snow covers the ground about 113 days of the year.
About 128 frost-free days a year
In half of years the last 32° night comes by May 17 and the first one by September 25. That leaves about 128 frost-free days for gardens, shorter than 95% of U.S. towns.
Heating and cooling a home in Porter
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Porter, 95% of that work is heating and 5% is cooling, so the furnace matters far more than the air conditioner.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
Porter and its neighbors
Porter borders 4 towns with climate data. January nights across them vary by 1.5°. Brownfield has both the coldest January nights (9°) and the hottest July afternoons (80°). Porter’s January low is 10° and its July high 80°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Porter compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Porter averaged 1.7° warmer than the 1900s. The biggest change is in December (+3.6°). The shift is larger than in 79% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Porter’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 9° to 28°. August is the most reliable, staying within 5°.
Common questions about Porter’s climate
What is the coldest month in Porter?
January, with a typical high of 29° and a low of 10°.
What is the hottest month in Porter?
July, with a typical high of 80° and a low of 56°. About 11 days a year reach 90°.
How much snow does Porter get?
About 84 inches in a normal winter, most of it in February.
When is the first frost in Porter?
In half of years the first 32° night comes by September 25, and the last spring frost by May 17.
What is the rainiest month in Porter?
October, with 5.3 inches of rain and melted snow. The year totals 48 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Porter itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at North Conway, NH (18 mi, snow) and Fryeburg E Slopes Airport, ME (11 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.