Allagash, ME climate
Allagash has cold, snowy winters and pleasant summers. A typical July afternoon reaches 77°, a January night drops to -2°, and about 100 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Allagash feels like
Winter
Spring
Summer
Fall
Allagash 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 | 20° | -2° | 2.7" | 19.1" | 11 | 31 | -3° – 18° |
| February | 24° | 0° | 2.3" | 21.0" | 10 | 29 | 0° – 22° |
| March | 34° | 11° | 2.6" | 17.5" | 11 | 31 | 11° – 30° |
| April | 47° | 25° | 3.0" | 7.1" | 12 | 15 | 31° – 42° |
| May | 63° | 37° | 3.2" | 0.4" | 13 | 0 | 45° – 56° |
| June | 72° | 47° | 3.9" | 0 | 13 | 0 | 56° – 64° |
| July | 77° | 53° | 4.4" | 0 | 15 | 0 | 59° – 69° |
| August | 75° | 51° | 3.6" | 0 | 12 | 0 | 59° – 66° |
| September | 67° | 43° | 3.5" | 0 | 11 | 0 | 49° – 60° |
| October | 52° | 33° | 4.1" | 2.1" | 13 | 2 | 37° – 49° |
| November | 38° | 23° | 3.1" | 8.5" | 12 | 11 | 25° – 36° |
| December | 26° | 9° | 3.2" | 24.0" | 13 | 28 | 10° – 26° |
| Year | 49° | 27° | 39.8" | 99.7" | 145 | 146 |
“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 Allagash
Allagash gets 40 inches of rain and melted snow a year. July is the wettest month and February the driest. Rain or snow falls on about 145 days a year. Snow covers the ground about 146 days of the year.
About 102 frost-free days a year
In half of years the last 32° night comes by June 2 and the first one by September 15. That leaves about 102 frost-free days for gardens, shorter than 99% of U.S. towns.
Heating and cooling a home in Allagash
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Allagash, 99% of that work is heating and 1% 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.
How Allagash 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 Allagash averaged 1.5° warmer than the 1900s. The biggest change is in December (+3.6°). The shift is larger than in 70% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Allagash’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 0° to 22°. August is the most reliable, staying within 7°.
Common questions about Allagash’s climate
What is the coldest month in Allagash?
January, with a typical high of 20° and a low of -2°.
What is the hottest month in Allagash?
July, with a typical high of 77° and a low of 53°. About 2 days a year reach 90°.
How much snow does Allagash get?
About 100 inches in a normal winter, most of it in December.
When is the first frost in Allagash?
In half of years the first 32° night comes by September 15, and the last spring frost by June 2.
What is the rainiest month in Allagash?
July, with 4.4 inches of rain and melted snow. The year totals 40 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Allagash itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Allagash, ME (4 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.