Climate · Bowdoinham

Bowdoinham, ME climate

Bowdoinham has cold, snowy winters and pleasant summers. A typical July afternoon reaches 79°, a January night drops to 11°, and about 72 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
79°
157th hottest of 614 Maine towns
January low
11°
179th mildest of 614 Maine towns
Rain + melted snow
47 in
299th wettest of 614 Maine towns
Snow a winter
72 in
177th least snowy of 567 Maine towns
A normal year

What a year in Bowdoinham feels like

Winter

33° / 15°
Typical high / low · 20 days with an inch or more of snow

Spring

53° / 33°
Typical high / low · Last frost around May 10

Summer

77° / 56°
Typical high / low · 2 days reach 90° in a normal year

Fall

58° / 39°
Typical high / low · First frost around Oct 6
Best months to be outsideMayJunJulAugSepHighs of 62–84° and lows of 40° or more
Month by month

Bowdoinham weather by month

Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January30°11°3.4" 20.0"1225 11° – 28°
February33°13°3.2" 18.8"1023 10° – 30°
March41°22°4.0" 13.4"1118 25° – 39°
April53°33°4.2" 3.0"123 40° – 48°
May65°43°3.6" 0130 49° – 59°
June74°53°4.4" 0120 60° – 67°
July79°59°3.4" 0110 64° – 72°
August78°57°3.4" 0100 65° – 71°
September70°50°4.0" 0100 56° – 65°
October58°39°5.2" 0.1"110 44° – 56°
November46°30°4.4" 2.5"112 33° – 42°
December36°19°4.3" 14.0"1314 21° – 36°
Year55°36°47.5"71.8"13585

“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 & snow

Rain and snow in Bowdoinham

Bowdoinham gets 47 inches of rain and melted snow a year. October is the wettest month and February the driest. Rain or snow falls on about 135 days a year. Snow covers the ground about 85 days of the year.

47 in
Rain + melted snow a year
More rain than 79% of U.S. towns
72 in
Snow in a normal winter
More snow than 92% of U.S. towns
85 days
With 1"+ of snow on the ground
More than 84% of U.S. towns

Rain + melted snow by month

Inches of water
5.2"

Snowfall by month

Inches of snow
20"
Frost & the growing season

About 149 frost-free days a year

In half of years the last 32° night comes by May 10 and the first one by October 6. That leaves about 149 frost-free days for gardens, shorter than 82% of U.S. towns.

162
nights at or below 32° in a normal year
15
nights below 0° in a normal year
2
days that reach 90° in a normal year

Freezing nights by month

Average nights at or below 32°

90° days by month

Average days at 90° or more
Heating & cooling

Heating and cooling a home in Bowdoinham

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Bowdoinham, 97% of that work is heating and 3% is cooling, so the furnace matters far more than the air conditioner.

97%heating
7,668 heating degree daysMore heating than 82% of U.S. towns
259 cooling degree daysLess cooling than 94% of U.S. towns

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.

Around Bowdoinham

Bowdoinham and its neighbors

Bowdoinham borders 5 towns with climate data. January nights across them vary by 2.4°. Bowdoin has the coldest January nights (11°) and Richmond the hottest July afternoons (79°). Bowdoinham’s January low is 11° and its July high 79°.

Lisbon: January low 11°, July high 80°Brunswick: January low 14°, July high 78°Durham: January low 12°, July high 80°Wiscasset: January low 12°, July high 78°Arrowsic: January low 14°, July high 78°Westport Island: January low 15°, July high 76°Georgetown: January low 15°, July high 76°Dresden: January low 11°, July high 79°Litchfield: January low 10°, July high 79°Pittston: January low 11°, July high 79°West Bath: January low 14°, July high 77°Phippsburg: January low 15°, July high 77°Topsham: January low 12°, July high 79°Woolwich: January low 12°, July high 79°Richmond: January low 11°, July high 79°Bowdoin: January low 11°, July high 79°Bath: January low 13°, July high 78°Bowdoinham: January low 11°, July high 79° BowdoinhamTopshamWoolwichRichmondBowdoinBath
ColderMilder10° to 15°
Bowdoin11.0° −0.3°
Richmond11.1° −0.2°
Bowdoinham11.3°
Topsham11.9° +0.6°
Woolwich12.2° +0.9°
Bath13.4° +2.1°

Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.

Compared with other towns

How Bowdoinham compares

Summer heat79° July high
Cooler than 91% of U.S. towns157th hottest of 614 Maine towns
Winter cold11° January low
Colder than 79% of U.S. towns179th mildest of 614 Maine towns
Precipitation47" a year
Wetter than 79% of U.S. towns299th wettest of 614 Maine towns
Snow72" a winter
Snowier than 92% of U.S. towns177th least snowy of 567 Maine towns
Growing season149 frost-free days
Shorter than 82% of U.S. towns250th shortest of 610 Maine towns

Compared with every U.S. town and city on TownTapestry, each counted once.

Then and now

Warmer than it used to be

+1.8°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Bowdoinham averaged 1.8° warmer than the 1900s. The biggest change is in December (+3.8°). The shift is larger than in 89% of U.S. towns.

❄️ Winter+2.8° now 24°, was 21°
🌷 Spring+1.3° now 43°, was 42°
☀️ Summer+1.5° now 67°, was 65°
🍂 Fall+1.7° now 49°, was 47°

Change by month1991–2020 average minus 1901–2000 average, at Bowdoinham’s spot on NOAA’s grid

Year to year

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 10° to 30°. August is the most reliable, staying within 5°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Bowdoinham’s climate

What is the coldest month in Bowdoinham?

January, with a typical high of 30° and a low of 11°.

What is the hottest month in Bowdoinham?

July, with a typical high of 79° and a low of 59°. About 2 days a year reach 90°.

How much snow does Bowdoinham get?

About 72 inches in a normal winter, most of it in January.

When is the first frost in Bowdoinham?

In half of years the first 32° night comes by October 6, and the last spring frost by May 10.

What is the rainiest month in Bowdoinham?

October, with 5.2 inches of rain and melted snow. The year totals 47 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Bowdoinham itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Bath, ME (8 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.

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