January weather forecast
Brooklyn, NY

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Weather in January

January introduces the New Year with a jolt of icy temperatures in Brooklyn, New York. It is common for the frosty mornings to reveal frozen ponds, coupled early days and longer nights. Sunshine, while limited, does make an appearance for about five hours per day. During this month, from 27.7°F (-2.4°C) to 37°F (2.8°C) temperatures are noticed, defining January as the coldest month of the year. Compared to the rest of the year, the air is drier but the winds, reaching a peak speed of 16.3mph (26.2km/h), add to the chilling factor of the weather.

Temperature

January brings the lowest temperatures, with an average high of 37°F (2.8°C) and an average low of 27.7°F (-2.4°C).

Humidity

In January, the average relative humidity in Brooklyn is 73%.

Rainfall

In Brooklyn, New York, in January, during 4.9 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. In Brooklyn, during the entire year, the rain falls for 110.8 days and collects up to 10.39" (264mm) of precipitation.

Snowfall

January through April and December are months with snowfall. In Brooklyn, in January, snow falls for 3.6 days, with typically accumulated 0.24" (6mm) of snow. Throughout the year, in Brooklyn, there are 13 snowfall days, and 1.3" (33mm) of snow is accumulated.

Ocean temperature

In Brooklyn, the average seawater temperature in January is 42.4°F (5.8°C).
Note: Swimming at temperatures less than 50°F (10°C) in 42.4°F (5.8°C) is feasible with the right swimsuit; if not, expect cold shock and breathlessness. A quick swim at 55.4°F (13°C) without adequate warmth can be discomforting.

Daylight

The average length of the day in January is 9h and 40min.
On the first day of January, sunrise is at 7:19 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:11 pm EST.

Sunshine

In January, the average sunshine 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 in Brooklyn, New York. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In January, the maximum UV index of 2 suggests this advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. To avoid the Sun's strongest rays, limit exposure around the mid-day period. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest in Brooklyn?

The coldest month is January, with an average high-temperature of 37°F (2.8°C) and an average low-temperature of 27.7°F (-2.4°C).

How cold is it in Brooklyn in January?

In Brooklyn, 37°F (2.8°C) is the average high-temperature and 27.7°F (-2.4°C) is the average low-temperature during January.

What is the average humidity in January in Brooklyn?

In Brooklyn, New York, the average relative humidity in January is 73%.

How much does it rain in Brooklyn in January?

In Brooklyn, New York, in January, it is raining for 4.9 days, with typically 0.55" (14mm) of accumulated precipitation.

How many days does it snow in January in Brooklyn?

In Brooklyn, during January, snow falls for 3.6 days and regularly aggregates up to 0.24" (6mm) of snow.

What is the water temperature in January in Brooklyn?

In January, the average ocean temperature in Brooklyn is 42.4°F (5.8°C). Swimming in 42.4°F (5.8°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does Brooklyn have in January?

In Brooklyn, New York, the average day length in January is 9h and 40min.

What time are sunrise and sunset in January in Brooklyn?

In January, on the first day of the month, sunrise is at 7:19 am and sunset at 4:38 pm. On the last day of the month, in Brooklyn, sunrise is at 7:06 am and sunset at 5:11 pm EST.

How many hours of sunshine does Brooklyn have in January?

The average sunshine duration in January in Brooklyn is 5.2h.

What are the months with the lowest UV index in Brooklyn?

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

How high is the UV index in January in Brooklyn?

In Brooklyn, New York, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low health risk 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
Brooklyn, NY

Average temperature in January - Brooklyn, NY
  • Average high temperature in January: 37°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in January: 27.7°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

Average pressure in January
Brooklyn, NY

Average pressure in January - Brooklyn, NY
  • Average pressure in January: 30.06"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in January
Brooklyn, NY

Average wind speed in January - Brooklyn, NY
  • Average wind speed in January: 11.2mph

The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).

Average humidity in January
Brooklyn, NY

Average humidity in January - Brooklyn, NY
  • Average humidity in January: 73%

The months with the highest relative humidity are February, May and June (76%).
The months with the lowest relative humidity are August and November (72%).

Average rainfall in January
Brooklyn, NY

Average rainfall in January - Brooklyn, NY
  • Average rainfall in January: 0.55"

The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is September (0.51").

Average rainfall days in January
Brooklyn, NY

Average rainfall days in January - Brooklyn, NY
  • Average rainfall days in January: 4.9 days

The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is January (4.9 days).

Average snowfall in January
Brooklyn, NY

Average snowfall in January - Brooklyn, NY
  • Average snowfall in January: 0.24"

The month with the highest snowfall is March (0.55").
The months with the least snowfall are May, June, July, August, September, October and November (0").

Average snowfall days in January
Brooklyn, NY

Average snowfall days in January - Brooklyn, NY
  • Average snowfall days in January: 3.6 days

The months with the highest number of snowfall days are January and February (3.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average sea temperature in January
Brooklyn, NY

Average sea temperature in January - Brooklyn, NY
  • Average sea temperature in January: 42.4°F

The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.9°F).

Average daylight in January /
Average sunshine in January
Brooklyn, NY

Average daylight in January / Average sunshine in January - Brooklyn, NY
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in January: 5h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in January
Brooklyn, NY

Average sunshine days in January - Brooklyn, NY
  • Average sunshine days in January: 22 days

The month with the most sunshine days is January (22 days).
The month with the least sunshine days is June (16 days).

Average UV index in January
Brooklyn, NY

Average UV index in January - Brooklyn, NY
  • 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
Brooklyn, NY

Average cloud cover in January - Brooklyn, NY
  • Average cloud cover in January: 43

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 28).

Average visibility in January
Brooklyn, NY

Average visibility in January - Brooklyn, NY
  • 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).

Brooklyn, New York, USA

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