March 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 March

As New London transitions into spring in March, the weather begins to temper. Increases in temperature, humidity, and daylight hours symbolize the arrival of the spring season. The temperature range in March extends from 32.9°F (0.5°C) to 43.3°F (6.3°C), with snowfall dwindling to 2.56" (65mm). The thawing of winter snow brings about a wave of freshness in the air. Budding flowers gradually add an array of colors to the New London landscape, heralding the arrival of spring.

Temperature

In New London, the average high-temperature in March slightly rises, from a cold 37.9°F (3.3°C) in February, to a chilly 43.3°F (6.3°C). In New London, the average temperature during the nights of March drops to a wintry 32.9°F (0.5°C).

Humidity

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

Rainfall

In New London, Connecticut, in March, it is raining for 13.8 days, with typically 2.95" (75mm) of accumulated precipitation. Throughout the year, in New London, Connecticut, there are 159.8 rainfall days, and 33.07" (840mm) of precipitation is accumulated.

Snowfall

Months with snowfall in New London are January through April, November and December. The month with the most snowfall is March, when snow falls for 5.1 days and typically aggregates up to 2.56" (65mm) of snow.

Ocean temperature

In New London, the average seawater temperature in March is 39.7°F (4.3°C).
Note: During swimming sessions, this situation poses an instant life risk. The control of breathing is completely lost, hampering clear thinking. Wearing a specialized swimsuit is a necessity to prevent thermal loss.

Daylight

In March, the average length of the day in New London is 11h and 58min.
On the first day of the month, sunrise is at 6:21 am and sunset at 5:39 pm EST. On the last day of March, sunrise is at 6:31 am and sunset at 7:12 pm EDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from EDT to EST.

Sunshine

In March, the average sunshine is 6.2h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in New London. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In March, a regular UV index of 2 translates into these guidelines:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Experience reduced UV exposure by about half when donning a wide-brim hat. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
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Frequently asked questions

How cold does it get in New London in March?

In New London, in March, the average high-temperature is 43.3°F (6.3°C), and the average low-temperature is 32.9°F (0.5°C).

What is the least humid month in New London?

The months with the lowest humidity in New London, Connecticut, are January, March, April and November, with an average relative humidity of 74%.

What is the average humidity in March in New London?

The average relative humidity in March in New London is 74%.

How much does it rain in New London in March?

In New London, Connecticut, in March, during 13.8 rainfall days, 2.95" (75mm) of precipitation is typically accumulated.

When does it snow the most in New London?

The month with the most snowfall is March, when snow falls for 5.1 days and typically aggregates up to 2.56" (65mm) of snow.

How much does it snow in New London in March?

In New London, in March, snow falls for 5.1 days, with typically accumulated 2.56" (65mm) of snow.

What is the ocean temperature in March in New London?

In New London, in March, the average water temperature is 39.7°F (4.3°C). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

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

The average day length in March in New London, Connecticut, is 11h and 58min.

When is the sunrise / sunset in March in New London?

In March, on the first day of the month, sunrise is at 6:21 am and sunset at 5:39 pm EST. On the last day of the month, sunrise is at 6:31 am and sunset at 7:12 pm EDT.

When does Daylight Saving Time (DST) start in March in New London?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in New London, and the time zone changes from EST to EDT. DST ends Sunday, November 3. 2024, at 2:00 am.

How many hours of sunshine does New London have in March?

In New London, Connecticut, the average sunshine duration in March is 6.2h.

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

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

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

In March, the average daily maximum UV index in New London, Connecticut, is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMarchAMJJASOND
Feb
March
Apr
Average high temperature
37.9°F 3.3°C
43.3°F 6.3°C
53.4°F 11.9°C
Average low temperature
27°F -2.8°C
32.9°F 0.5°C
42.4°F 5.8°C
Average pressure
30.01" 762mmHg
30.04" 763mmHg
29.98" 761mmHg
Average wind speed
11.5mph 18.5km/h
11.4mph 18.3km/h
10.6mph 17.1km/h
Average max. wind speed
12.2mph 19.6km/h
12.1mph 19.5km/h
11.4mph 18.3km/h
Average wind speed gusts
18.2mph 29.3km/h
17.8mph 28.6km/h
17mph 27.4km/h
Average humidity
77%
74%
74%
Average rainfall
2.48" 63mm
2.95" 75mm
3.11" 79mm
Average rainfall days
9.5
13.8
14.9
Average snowfall
1.85" 47mm
2.56" 65mm
0.08" 2mm
Average snowfall days
6.8
5.1
0.7
Average sea temperature
38.8°F 3.8°C
39.8°F 4.3°C
44.4°F 6.9°C
Average daylight
10h 4min
12h 0min
13h 2min
Average sunshine
4h 5min
6h 1min
8h 2min
Average sunshine days
12.5
13.5
13.8
Average UV index
2
2
3
Average cloud cover
47%
47%
44%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in March
New London, CT

Average temperature in March - New London, CT
  • Average high temperature in March: 43.3°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 March: 32.9°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).

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Average pressure in March
New London, CT

Average pressure in March - New London, CT
  • Average pressure in March: 30.04"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).

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Average wind speed in March
New London, CT

Average wind speed in March - New London, CT
  • Average wind speed in March: 11.4mph

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).

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Average humidity in March
New London, CT

Average humidity in March - New London, CT
  • Average humidity in March: 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%).

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Average rainfall in March
New London, CT

Average rainfall in March - New London, CT
  • Average rainfall in March: 2.95"

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

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Average rainfall days in March
New London, CT

Average rainfall days in March - New London, CT
  • Average rainfall days in March: 13.8 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).

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Average snowfall in March
New London, CT

Average snowfall in March - New London, CT
  • Average snowfall in March: 2.56"

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").

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Average snowfall days in March
New London, CT

Average snowfall days in March - New London, CT
  • Average snowfall days in March: 5.1 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).

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Average sea temperature in March
New London, CT

Average sea temperature in March - New London, CT
  • Average sea temperature in March: 39.8°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).

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

Average daylight in March / Average sunshine in March - New London, CT
  • Average daylight in March: 12h and 0min

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 March: 6h 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).

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Average sunshine days in March
New London, CT

Average sunshine days in March - New London, CT
  • Average sunshine days in March: 13.5 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).

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Average UV index in March
New London, CT

Average UV index in March - New London, CT
  • Average UV index in March: 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).

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Average cloud cover in March
New London, CT

Average cloud cover in March - New London, CT
  • Average cloud cover in March: 47

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).

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Average visibility in March
New London, CT

Average visibility in March - New London, CT
  • Average visibility in March: 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).

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New London, Connecticut, USA

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