Monthly weather forecast and climate
New London, CT

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

January, like December, in New London, Connecticut, is another cold winter month, with average temperature varying between 26.2°F (-3.2°C) and 36.1°F (2.3°C). January is the coldest month, with an average high-temperature of 36.1°F (2.3°C) and an average low-temperature of 26.2°F (-3.2°C). Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in New London, Connecticut, with average temperature fluctuating between 37.9°F (3.3°C) and 27°F (-2.8°C). In February, the average high-temperature is relatively the same as in January - a still cold 37.9°F (3.3°C). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in New London, Connecticut, with temperature in the range of an average high of 43.3°F (6.3°C) and an average low of 32.9°F (0.5°C). In March, the average high-temperature slightly increases, from a wintry 37.9°F (3.3°C) in February, to a frosty 43.3°F (6.3°C). Weather in March »

Weather in April

April is a fresh spring month in New London, Connecticut, with average temperature varying between 53.4°F (11.9°C) and 42.4°F (5.8°C). In April, the average high-temperature rises, from a frosty 43.3°F (6.3°C) in March, to a cool 53.4°F (11.9°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in New London, Connecticut, with average temperature ranging between max 63.3°F (17.4°C) and min 50.9°F (10.5°C). In New London, the average high-temperature in May increases, from a cool 53.4°F (11.9°C) in April, to a comfortable 63.3°F (17.4°C). Weather in May »

Weather in June

June, the first month of the summer, in New London, is an agreeable month, with temperature in the range of an average high of 71.4°F (21.9°C) and an average low of 59°F (15°C). In June, the average high-temperature marginally rises, from a comfortable 63.3°F (17.4°C) in May, to a pleasant 71.4°F (21.9°C). Weather in June »

Weather in July

July in New London, Connecticut, is a moderately hot summer month, with average temperature ranging between min 66.7°F (19.3°C) and max 78.6°F (25.9°C). With an average high-temperature of 78.6°F (25.9°C) and an average low-temperature of 66.7°F (19.3°C), July is the warmest month. Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in New London, Connecticut, with average temperature fluctuating between 77.7°F (25.4°C) and 66.2°F (19°C). In New London, the average high-temperature is almost the same as in July - a still warm 77.7°F (25.4°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in New London, Connecticut, with temperature in the range of an average low of 59.9°F (15.5°C) and an average high of 72°F (22.2°C). In New London, the average high-temperature marginally drops, from a warm 77.7°F (25.4°C) in August, to a pleasant 72°F (22.2°C). Weather in September »

Weather in October

October, like September, in New London, Connecticut, is another enjoyable autumn month, with average temperature ranging between max 61.7°F (16.5°C) and min 50.9°F (10.5°C). In New London, the average high-temperature decreases, from an agreeable 72°F (22.2°C) in September, to an enjoyable 61.7°F (16.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in New London, Connecticut, with temperature in the range of an average low of 40.6°F (4.8°C) and an average high of 50.9°F (10.5°C). In New London, the average high-temperature decreases, from an enjoyable 61.7°F (16.5°C) in October, to a fresh 50.9°F (10.5°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in New London, Connecticut, with temperature in the range of an average high of 41.9°F (5.5°C) and an average low of 33.3°F (0.7°C). In New London, the average high-temperature in December drops, from a fresh 50.9°F (10.5°C) in November, to a cold 41.9°F (5.5°C). Weather in December »
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FAQ

What is the coldest month in New London?

The coldest month is January, with an average high-temperature of 36.1°F (2.3°C) and an average low-temperature of 26.2°F (-3.2°C).

What are the least humid months in New London?

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

How many days does it rain in New London?

In New London, Connecticut, during the entire year, the rain falls for 159.8 days and collects up to 33.07" (840mm) of precipitation.

When does it snow in New London?

Months with snowfall are January through April, November and December.

How much does it snow in New London?

In New London, during the entire year, snow falls for 24 days, and aggregates up to 7.68" (195mm) of snow.

When is the lowest UV index in New London?

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

What month is the ocean coldest in New London?

The month with the coldest seawater in New London, Connecticut, is February, with an average ocean temperature of 38.8°F (3.8°C).

What is the month with the least sunshine in New London?

Months with the least sunshine are February and December, with an average of 4.9h of sunshine.

When does it snow the most in New London?

March is the month with the most snowfall. Snow falls for 5.1 days and accumulates 2.56" (65mm) of snow.

When it does not snow in New London?

In New London snow does not fall in May through October.

What is the most humid month in New London?

June is the most humid month in New London, Connecticut, with an average relative humidity of 80%.

When are the longest days in New London?

June has the longest days of the year, with an average of 15.1h of daylight.

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

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the warmest month in New London?

July is the warmest month in New London, with an average high-temperature of 78.6°F (25.9°C) and an average low-temperature of 66.7°F (19.3°C).

What month is the ocean warmest in New London?

With an average ocean temperature of 72.1°F (22.3°C), August is the month with the warmest seawater in New London, Connecticut.

What month has the most sunshine in New London?

The month with the most sunshine in New London is August, with an average of 10.6h of sunshine.

What is the driest month in New London?

September is the month with the least rainfall. Rain falls for 12 days and accumulates 1.65" (42mm) of precipitation.

What is the wettest month in New London?

December is the month with the most rainfall in New London. Rain falls for 13.4 days and accumulates 3.86" (98mm) of precipitation.

What is the month with the shortest days in New London?

With an average of 9.2h of daylight, December has the shortest days of the year.

Average temperature
New London, CT

Average temperature - New London, CT

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).

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
New London, CT

Average pressure - New London, CT

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

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Average wind speed
New London, CT

Average wind speed - New London, CT

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
New London, CT

Average humidity - New London, CT

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

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Average rainfall
New London, CT

Average rainfall - New London, CT

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
New London, CT

Average rainfall days - New London, CT

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
New London, CT

Average snowfall - New London, CT

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

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Average snowfall days
New London, CT

Average snowfall days - New London, CT

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

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Average sea temperature
New London, CT

Average sea temperature - New London, CT

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 / Average sunshine
New London, CT

Average daylight / Average sunshine - New London, CT

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.2h).

The month with the most sunshine is August (Average sunshine: 10.6h).
Months with the least sunshine are February and December (Average sunshine: 4.9).

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Average sunshine days
New London, CT

Average sunshine days - New London, CT

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
New London, CT

Average UV index - New London, CT

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

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Average visibility
New London, CT

Average visibility - New London, CT

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

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