Climate · Hartford

Hartford, VT climate

Hartford has cold, snowy winters and pleasant summers. A typical July afternoon reaches 82°, a January night drops to 10°, and about 61 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
10°
158th mildest of 416 Vermont towns
Rain + melted snow
41 in
89th driest of 416 Vermont towns
Snow a winter
61 in
55th least snowy of 411 Vermont towns
A normal year

What a year in Hartford feels like

Winter

33° / 12°
Typical high / low · 16 days with an inch or more of snow

Spring

56° / 31°
Typical high / low · Last frost around May 9

Summer

80° / 55°
Typical high / low · 11 days reach 90° in a normal year

Fall

59° / 37°
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

Hartford 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°10°2.7" 16.4"1127 9° – 28°
February33°11°2.4" 13.1"925 8° – 28°
March42°20°2.8" 13.5"1019 22° – 41°
April56°31°3.3" 1.9"112 39° – 49°
May69°42°3.4" 0120 49° – 61°
June77°52°4.1" 0120 62° – 69°
July82°57°4.3" 0130 64° – 74°
August80°55°3.9" 0110 65° – 71°
September72°47°3.4" 0110 56° – 64°
October59°36°4.2" 0.1"120 43° – 55°
November46°27°2.9" 2.2"103 32° – 42°
December35°17°3.3" 13.4"1118 19° – 37°
Year57°34°40.7"60.6"13295

“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 Hartford

Hartford gets 41 inches of rain and melted snow a year. July is the wettest month and February the driest. Rain or snow falls on about 132 days a year. Snow covers the ground about 95 days of the year.

41 in
Rain + melted snow a year
More rain than 53% of U.S. towns
61 in
Snow in a normal winter
More snow than 89% of U.S. towns
95 days
With 1"+ of snow on the ground
More than 89% of U.S. towns

Rain + melted snow by month

Inches of water
4.3"

Snowfall by month

Inches of snow
16"
Frost & the growing season

About 148 frost-free days a year

In half of years the last 32° night comes by May 9 and the first one by October 6. That leaves about 148 frost-free days for gardens, shorter than 82% of U.S. towns.

163
nights at or below 32° in a normal year
20
nights below 0° in a normal year
11
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 Hartford

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Hartford, 94% of that work is heating and 6% is cooling, so the furnace matters far more than the air conditioner.

94%heating
7,333 heating degree daysMore heating than 77% of U.S. towns
461 cooling degree daysLess cooling than 80% 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 Hartford

Hartford and its neighbors

Hartford borders 5 towns with climate data. January nights across them vary by 0.9°. Pomfret has the coldest January nights (9°) and Lebanon the hottest July afternoons (82°). Hartford’s January low is 10° and its July high 82°.

Enfield: January low 9°, July high 80°Hanover: January low 9°, July high 80°Plainfield: January low 10°, July high 81°Sharon: January low 9°, July high 80°Barnard: January low 8°, July high 78°Royalton: January low 8°, July high 81°Bridgewater: January low 8°, July high 76°Reading: January low 9°, July high 77°West Windsor: January low 10°, July high 80°Windsor: January low 10°, July high 81°Thetford: January low 9°, July high 81°Lyme: January low 9°, July high 79°Lebanon: January low 10°, July high 82°Pomfret: January low 9°, July high 79°Woodstock: January low 9°, July high 80°Hartland: January low 10°, July high 81°Norwich: January low 9°, July high 80°Hartford: January low 10°, July high 82° HartfordLebanonPomfretWoodstockHartlandNorwich
ColderMilder8° to 10°
Pomfret8.7° −0.8°
Woodstock9.0° −0.5°
Norwich9.0° −0.5°
Hartford9.5°
Lebanon9.6° +0.1°
Hartland9.6° +0.1°

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

Compared with other towns

How Hartford compares

Summer heat82° July high
Cooler than 75% of U.S. towns33rd hottest of 416 Vermont towns
Winter cold10° January low
Colder than 82% of U.S. towns158th mildest of 416 Vermont towns
Precipitation41" a year
Wetter than 53% of U.S. towns89th driest of 416 Vermont towns
Snow61" a winter
Snowier than 89% of U.S. towns55th least snowy of 411 Vermont towns
Growing season148 frost-free days
Shorter than 82% of U.S. towns129th 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

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

The last 30 years in Hartford averaged 1.8° warmer than the 1900s. The biggest change is in December (+3.7°). The shift is larger than in 88% of U.S. towns.

❄️ Winter+2.9° now 23°, was 20°
🌷 Spring+1.3° now 43°, was 42°
☀️ Summer+1.5° now 67°, was 66°
🍂 Fall+1.6° now 48°, was 47°

Change by month1991–2020 average minus 1901–2000 average, at Hartford’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 8° to 28°. June is the most reliable, staying within 7°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Hartford’s climate

What is the coldest month in Hartford?

January, with a typical high of 30° and a low of 10°.

What is the hottest month in Hartford?

July, with a typical high of 82° and a low of 57°. About 11 days a year reach 90°.

How much snow does Hartford get?

About 61 inches in a normal winter, most of it in January.

When is the first frost in Hartford?

In half of years the first 32° night comes by October 6, and the last spring frost by May 9.

What is the rainiest month in Hartford?

July, with 4.3 inches of rain and melted snow. The year totals 41 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Hartford itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Hanover, NH (6 mi, snow) and Lebanon Municipal Airport, NH (5 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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