January weather forecast
New London, CT

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A part of the city of New London, Connecticut, with intricate buildings overlooking the calm water
A part of the city of New London, Connecticut, with intricate buildings overlooking the calm water

Weather in January

Weather in New London, Connecticut opens the year with a wintry face. Snow cover accompanies low temperatures, setting a tranquil scene befitting the month of January. The city can expect temperatures from 26.2°F (-3.2°C) to 36.1°F (2.3°C) during this month, with snowfall reaching an average of 1.81" (46mm). Higher precipitation levels mingled with lower temperatures generate an atmospheric balance between cold and moisture. A blanket of frost regularly adorns the landscape during the mornings, offering a picturesque view to both the local and visitor alike.

Temperature

The coldest period in New London, Connecticut, is January, when temperatures fluctuate between an average high of 36.1°F (2.3°C) and a low of 26.2°F (-3.2°C).

Humidity

January, March, April and November, with an average relative humidity of 74%, are the least humid months.

Rainfall

In January, the rain falls for 10.8 days. Throughout January, 2.64" (67mm) of precipitation is accumulated. Throughout the year, there are 159.8 rainfall days, and 33.07" (840mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In New London, during January, snow falls for 5.9 days and regularly aggregates up to 1.81" (46mm) of snow. In New London, Connecticut, during the entire year, snow falls for 24 days and aggregates up to 7.68" (195mm) of snow.

Ocean temperature

In January, the average ocean temperature in New London is 41.9°F (5.5°C).
Note: You can swim in 41.9°F (5.5°C) below 50°F (10°C) with proper thermal wear; failing that, the cold shock and respiratory challenges are nearly certain. A short span at 55.4°F (13°C) without it is tough.

Daylight

The average length of the day in January is 9h and 35min.
On the first day of January, sunrise is at 7:14 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 5:02 pm EST.

Sunshine

In January, the average sunshine in New London is 5.2h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 2 in January translates into the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest in New London?

January, characterized by an average high temperature of 36.1°F (2.3°C) and a low temperature of 26.2°F (-3.2°C), is generally the coldest month.

How cold is it in New London in January?

New London in January has an average high-temperature of 36.1°F (2.3°C) and an average low-temperature of 26.2°F (-3.2°C).

What is the least humid month in New London?

January, March, April and November, with an average relative humidity of 74%, are the least humid months.

What is the average humidity in January in New London?

In New London, Connecticut, the average relative humidity in January is 74%.

How much does it rain in New London in January?

In January, in New London, Connecticut, the rain falls for 10.8 days. Throughout January, 2.64" (67mm) of precipitation is accumulated.

How many days does it snow in January in New London?

In January, it is snowing for 5.9 days. Throughout January, 1.81" (46mm) of snow is accumulated.

What is the water temperature in January in New London?

In January, the average ocean temperature in New London, Connecticut, is 41.9°F (5.5°C). Swimming in 41.9°F (5.5°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

How many hours of daylight does New London have in January?

The average day length in January in New London, Connecticut, is 9h and 35min.

When are sunrise and sunset in January in New London?

In January, on the first day of the month, sunrise is at 7:14 am and sunset at 4:29 pm. On the last day of the month, in New London, Connecticut, sunrise is at 7:00 am and sunset at 5:02 pm EST.

How long on average sun shines in January in New London?

The average sunshine duration in January is 5.2h.

What are the months with the lowest UV index in New London?

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.

What is the UV index intensity in January in New London?

The average daily maximum UV index in January in New London, Connecticut, is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
New London, CT

Average temperature in January - New London, CT
  • Average high temperature in January: 36.1°F

The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in January: 26.2°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

Average pressure in January
New London, CT

Average pressure in January - New London, CT
  • Average pressure in January: 30.03"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in January
New London, CT

Average wind speed in January - New London, CT
  • Average wind speed in January: 11.9mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).

Average humidity in January
New London, CT

Average humidity in January - New London, CT
  • Average humidity in January: 74%

The month with the highest relative humidity is June (80%).
The months with the lowest relative humidity are January, March, April and November (74%).

Average rainfall in January
New London, CT

Average rainfall in January - New London, CT
  • Average rainfall in January: 2.64"

The wettest month (with the highest rainfall) is December (3.86").
The driest month (with the least rainfall) is September (1.65").

Average rainfall days in January
New London, CT

Average rainfall days in January - New London, CT
  • Average rainfall days in January: 10.8 days

The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (9.5 days).

Average snowfall in January
New London, CT

Average snowfall in January - New London, CT
  • Average snowfall in January: 1.81"

The month with the highest snowfall is March (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
New London, CT

Average snowfall days in January - New London, CT
  • Average snowfall days in January: 5.9 days

The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average sea temperature in January
New London, CT

Average sea temperature in January - New London, CT
  • Average sea temperature in January: 41.9°F

The best month for swimming (with the highest average sea temperature) is August (72.1°F).
The coldest month (with the lowest average sea temperature) is February (38.8°F).

Average daylight in January /
Average sunshine in January
New London, CT

Average daylight in January / Average sunshine in January - New London, CT
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in January: 5h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).

Average sunshine days in January
New London, CT

Average sunshine days in January - New London, CT
  • Average sunshine days in January: 15.1 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is February (12.5 days).

Average UV index in January
New London, CT

Average UV index in January - New London, CT
  • Average UV index in January: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in January
New London, CT

Average cloud cover in January - New London, CT
  • Average cloud cover in January: 45

The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in January
New London, CT

Average visibility in January - New London, CT
  • Average visibility in January: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

New London, Connecticut, USA

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