Climate · Guilford

Guilford, VT climate

Guilford has cold, snowy winters and pleasant summers, with plenty of rain. A typical July afternoon reaches 82°, a January night drops to 13°, and about 60 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
82°
33rd hottest of 416 Vermont towns
January low
13°
7th mildest of 416 Vermont towns
Rain + melted snow
49 in
67th wettest of 416 Vermont towns
Snow a winter
60 in
35th least snowy of 411 Vermont towns
A normal year

What a year in Guilford feels like

Winter

34° / 16°
Typical high / low · 17 days with an inch or more of snow

Spring

56° / 34°
Typical high / low · Last frost around May 1

Summer

80° / 56°
Typical high / low · 10 days reach 90° in a normal year

Fall

60° / 39°
Typical high / low · First frost around Oct 11
Best months to be outsideMayJunJulAugSepHighs of 62–84° and lows of 40° or more
Month by month

Guilford 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
January32°13°3.6" 15.2"1225 12° – 30°
February35°15°3.1" 14.4"1025 11° – 32°
March43°23°3.7" 11.0"1116 26° – 43°
April57°33°4.2" 2.2"112 41° – 50°
May69°44°3.8" 0130 51° – 62°
June77°53°4.7" 0120 63° – 69°
July82°58°4.3" 0120 66° – 74°
August80°57°4.4" 0100 65° – 73°
September73°49°4.3" 0100 57° – 65°
October60°39°5.0" 0.2"120 45° – 56°
November48°30°3.7" 2.4"112 35° – 44°
December37°20°4.4" 14.4"1217 21° – 38°
Year58°36°49.2"59.8"13487

“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 Guilford

Guilford gets 49 inches of rain and melted snow a year. October is the wettest month and February the driest. Rain or snow falls on about 134 days a year. Snow covers the ground about 87 days of the year.

49 in
Rain + melted snow a year
More rain than 85% of U.S. towns
60 in
Snow in a normal winter
More snow than 88% of U.S. towns
87 days
With 1"+ of snow on the ground
More than 85% of U.S. towns

Rain + melted snow by month

Inches of water
5.0"

Snowfall by month

Inches of snow
15"
Frost & the growing season

About 162 frost-free days a year

In half of years the last 32° night comes by May 1 and the first one by October 11. That leaves about 162 frost-free days for gardens, shorter than 69% of U.S. towns.

154
nights at or below 32° in a normal year
9
nights below 0° in a normal year
10
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 Guilford

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Guilford, 93% of that work is heating and 7% is cooling, so the furnace matters far more than the air conditioner.

93%heating
6,683 heating degree daysMore heating than 68% of U.S. towns
519 cooling degree daysLess cooling than 75% 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 Guilford

Guilford and its neighbors

Guilford borders 4 towns with climate data. January nights across them vary by 1.9°. Halifax has the coldest January nights (12°) and Vernon the hottest July afternoons (84°). Guilford’s January low is 13° and its July high 82°.

Colrain: January low 13°, July high 82°Marlboro: January low 11°, July high 79°Whitingham: January low 11°, July high 78°Hinsdale: January low 14°, July high 84°Chesterfield: January low 13°, July high 82°Dummerston: January low 12°, July high 82°Bernardston: January low 14°, July high 83°Greenfield: January low 15°, July high 85°Halifax: January low 12°, July high 79°Vernon: January low 14°, July high 84°Brattleboro: January low 13°, July high 81°Leyden: January low 14°, July high 82°Guilford: January low 13°, July high 82° GuilfordHalifaxVernonBrattleboroLeyden
ColderMilder11° to 15°
Halifax12.0° −1.3°
Brattleboro12.6° −0.7°
Guilford13.3°
Vernon13.9° +0.6°
Leyden13.9° +0.6°

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

Compared with other towns

How Guilford compares

Summer heat82° July high
Cooler than 75% of U.S. towns33rd hottest of 416 Vermont towns
Winter cold13° January low
Colder than 75% of U.S. towns7th mildest of 416 Vermont towns
Precipitation49" a year
Wetter than 85% of U.S. towns67th wettest of 416 Vermont towns
Snow60" a winter
Snowier than 88% of U.S. towns35th least snowy of 411 Vermont towns
Growing season162 frost-free days
Shorter than 69% of U.S. towns33rd longest of 416 Vermont towns

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

Then and now

Warmer than it used to be

+2.0°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Guilford averaged 2.0° warmer than the 1900s. The biggest change is in December (+3.8°). The shift is larger than in 94% of U.S. towns.

❄️ Winter+3.2° now 25°, was 22°
🌷 Spring+1.4° now 45°, was 43°
☀️ Summer+1.7° now 68°, was 66°
🍂 Fall+1.7° now 50°, was 48°

Change by month1991–2020 average minus 1901–2000 average, at Guilford’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 11° to 32°. June is the most reliable, staying within 6°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Guilford’s climate

What is the coldest month in Guilford?

January, with a typical high of 32° and a low of 13°.

What is the hottest month in Guilford?

July, with a typical high of 82° and a low of 58°. About 10 days a year reach 90°.

How much snow does Guilford get?

About 60 inches in a normal winter, most of it in January.

When is the first frost in Guilford?

In half of years the first 32° night comes by October 11, and the last spring frost by May 1.

What is the rainiest month in Guilford?

October, with 5.0 inches of rain and melted snow. The year totals 49 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Guilford itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Keene, NH (19 mi, snow) and Greenfield #3, MA (14 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.

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