Climate · Ledyard

Ledyard, CT climate

Ledyard has chilly winters and pleasant summers. A typical July afternoon reaches 82°, a January night drops to 21°, and about 28 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
82°
89th coolest of 364 Connecticut towns
January low
21°
81st mildest of 364 Connecticut towns
Rain + melted snow
47 in
52nd driest of 364 Connecticut towns
Snow a winter
28 in
43rd least snowy of 353 Connecticut towns
A normal year

What a year in Ledyard feels like

Winter

40° / 23°
Typical high / low · 8 days with an inch or more of snow

Spring

58° / 38°
Typical high / low · Last frost around Apr 14

Summer

80° / 60°
Typical high / low · 14 days reach 90° in a normal year

Fall

63° / 44°
Typical high / low · First frost around Oct 24
Best months to be outsideMayJunJulAugSepOctHighs of 62–84° and lows of 40° or more
Month by month

Ledyard 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
January38°21°3.5" 9.0"1110 21° – 36°
February40°22°3.0" 7.1"1010 19° – 38°
March47°29°4.4" 5.0"104 32° – 46°
April58°38°4.2" 0.8"110 44° – 52°
May68°47°3.6" 0110 53° – 62°
June77°57°3.9" 0100 64° – 69°
July82°63°3.3" 090 68° – 77°
August81°62°3.8" 090 68° – 76°
September74°54°4.1" 090 61° – 68°
October63°43°4.6" 0100 50° – 60°
November53°34°3.8" 0.3"90 39° – 48°
December43°27°4.4" 5.6"116 28° – 46°
Year60°41°46.5"27.8"12030

“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 Ledyard

Ledyard 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 120 days a year. Snow covers the ground about 30 days of the year.

47 in
Rain + melted snow a year
More rain than 75% of U.S. towns
28 in
Snow in a normal winter
More snow than 54% of U.S. towns
30 days
With 1"+ of snow on the ground
More than 52% of U.S. towns

Rain + melted snow by month

Inches of water
4.6"

Snowfall by month

Inches of snow
9.0"
Frost & the growing season

About 192 frost-free days a year

In half of years the last 32° night comes by April 14 and the first one by October 24. That leaves about 192 frost-free days for gardens, longer than 66% of U.S. towns.

124
nights at or below 32° in a normal year
2
nights below 0° in a normal year
14
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 Ledyard

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Ledyard, 87% of that work is heating and 13% is cooling, so the furnace matters far more than the air conditioner.

87%heating
5,579 heating degree daysLess heating than 54% of U.S. towns
802 cooling degree daysLess cooling than 53% 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 Ledyard

Ledyard and its neighbors

Ledyard borders 6 towns with climate data. January nights across them vary by 3.7°. Preston has both the coldest January nights (20°) and the hottest July afternoons (83°). Ledyard’s January low is 21° and its July high 82°.

Westerly: January low 23°, July high 81°Southold: January low 24°, July high 81°Lisbon: January low 19°, July high 83°Norwich: January low 19°, July high 83°Griswold: January low 19°, July high 83°Voluntown: January low 20°, July high 82°Hopkinton: January low 20°, July high 82°Bozrah: January low 19°, July high 83°Salem: January low 20°, July high 83°New London: January low 23°, July high 81°Groton: January low 23°, July high 81°East Lyme: January low 22°, July high 83°Stonington: January low 24°, July high 81°Preston: January low 20°, July high 83°North Stonington: January low 20°, July high 82°Montville: January low 20°, July high 83°Groton: January low 23°, July high 81°Waterford: January low 23°, July high 82°Ledyard: January low 21°, July high 82° LedyardStoningtonPrestonNorth StoningtonMontvilleGrotonWaterford
ColderMilder19° to 24°
Preston19.9° −1.1°
Montville20.1° −0.9°
North Stonington20.4° −0.6°
Ledyard21.0°
Waterford22.7° +1.7°
Groton23.2° +2.2°
Stonington23.6° +2.6°

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

Compared with other towns

How Ledyard compares

Summer heat82° July high
Cooler than 71% of U.S. towns89th coolest of 364 Connecticut towns
Winter cold21° January low
Milder than 58% of U.S. towns81st mildest of 364 Connecticut towns
Precipitation47" a year
Wetter than 75% of U.S. towns52nd driest of 364 Connecticut towns
Snow28" a winter
Snowier than 54% of U.S. towns43rd least snowy of 353 Connecticut towns
Growing season192 frost-free days
Longer than 66% of U.S. towns64th longest of 364 Connecticut towns

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

Then and now

Warmer than it used to be

+2.1°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Ledyard averaged 2.1° warmer than the 1900s. The biggest change is in December (+3.7°). The shift is larger than in 96% of U.S. towns.

❄️ Winter+3.0° now 32°, was 29°
🌷 Spring+1.6° now 48°, was 46°
☀️ Summer+2.0° now 70°, was 68°
🍂 Fall+1.7° now 54°, was 52°

Change by month1991–2020 average minus 1901–2000 average, at Ledyard’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 19° to 38°. June is the most reliable, staying within 5°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Ledyard’s climate

What is the coldest month in Ledyard?

January, with a typical high of 38° and a low of 21°.

What is the hottest month in Ledyard?

July, with a typical high of 82° and a low of 63°. About 14 days a year reach 90°.

How much snow does Ledyard get?

About 28 inches in a normal winter, most of it in January.

When is the first frost in Ledyard?

In half of years the first 32° night comes by October 24, and the last spring frost by April 14.

What is the rainiest month in Ledyard?

October, with 4.6 inches of rain and melted snow. The year totals 47 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Ledyard itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Norwich Public Utility Plt, CT (7 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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