October 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 October

October in New London, Connecticut is notably characterized by the defining colors of autumn. A further decrease in temperature and daylight hours takes hold as the city transitions into the fall season. Typical temperatures shift from 50.9°F (10.5°C) to 61.7°F (16.5°C), with no trace of snowfall. Residents and tourists alike relish the vibrant fall foliage, which paints the city in shades of orange and red. The calming weather of October sets a soothing mood as the end of the year approaches.

Temperature

October brings a minor decrease, with the average high-temperature reducing from a pleasant 72°F (22.2°C) in September to a comfortable 61.7°F (16.5°C). During the month of October, the temperature in New London falls to an average of 50.9°F (10.5°C).

Humidity

In October, the average relative humidity in New London, Connecticut, is 76%.

Rainfall

In New London, in October, during 14.5 rainfall days, 3.39" (86mm) of precipitation is typically accumulated. In New London, during the entire year, the rain falls for 159.8 days and collects up to 33.07" (840mm) of precipitation.

Snowfall

May through October are months without snowfall.

Ocean temperature

In October, the average ocean temperature in New London is 62.8°F (17.1°C).
Note: For most individuals, swimming in 62.8°F (17.1°C) is not enjoyable. As the water temperature decreases from 69.8°F (21°C) to 59°F (15°C), breathing control becomes increasingly difficult.

Daylight

In New London, the average length of the day in October is 11h and 5min.
On the first day of October in New London, sunrise is at 6:45 am and sunset at 6:29 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 5:44 pm EDT.

Sunshine

The average sunshine in October is 6.2h.

UV index

In New London, the average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average maximum UV index of 3 in October leads to these recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are October temperatures in New London?

October temperatures vary between a high-temperature of 61.7°F (16.5°C) and a low-temperature of 50.9°F (10.5°C).

What is the average humidity in October in New London?

In October, the average relative humidity in New London, Connecticut, is 76%.

How much does it rain in New London in October?

In New London, Connecticut, in October, during 14.5 rainfall days, 3.39" (86mm) of precipitation is typically accumulated.

When it does not snow in New London?

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

Does it snow in New London in October?

In New London, in October, it doesn't snow. In November, it regularly snows.

What is the ocean temperature in October in New London?

In New London, in October, the average water temperature is 62.8°F (17.1°C). For most, swimming in 62.8°F (17.1°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

What is the average length of the day in October in New London?

The average day length in October in New London is 11h and 5min.

What time are sunrise and sunset in October in New London?

In October, on the first day of the month, sunrise is at 6:45 am and sunset at 6:29 pm. On the last day of the month, in New London, sunrise is at 7:19 am and sunset at 5:44 pm EDT.

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

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

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

In October, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
New London, CT

Average temperature in October - New London, CT
  • Average high temperature in October: 61.7°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 October: 50.9°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).

Average pressure in October
New London, CT

Average pressure in October - New London, CT
  • Average pressure in October: 30.01"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 October
New London, CT

Average wind speed in October - New London, CT
  • Average wind speed in October: 10.4mph

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).

Average humidity in October
New London, CT

Average humidity in October - New London, CT
  • Average humidity in October: 76%

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 October
New London, CT

Average rainfall in October - New London, CT
  • Average rainfall in October: 3.39"

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 October
New London, CT

Average rainfall days in October - New London, CT
  • Average rainfall days in October: 14.5 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 October
New London, CT

Average snowfall in October - New London, CT
  • Average snowfall in October: 0"

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 October
New London, CT

Average snowfall days in October - New London, CT
  • Average snowfall days in October: 0 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 October
New London, CT

Average sea temperature in October - New London, CT
  • Average sea temperature in October: 62.8°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).

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

Average daylight in October / Average sunshine in October - New London, CT
  • Average daylight in October: 11h and 1min

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 October: 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).

Average sunshine days in October
New London, CT

Average sunshine days in October - New London, CT
  • Average sunshine days in October: 14.5 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).

Average UV index in October
New London, CT

Average UV index in October - New London, CT
  • Average UV index in October: 3

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 October
New London, CT

Average cloud cover in October - New London, CT
  • Average cloud cover in October: 40

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 October
New London, CT

Average visibility in October - New London, CT
  • Average visibility in October: 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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