January weather forecast
Brooklyn, NY

Weather in January

January, the same as December, is another cold winter month in Brooklyn, New York, with an average temperature fluctuating between 27.7°F (-2.4°C) and 37°F (2.8°C).

Temperature

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).

Humidity

The average relative humidity in January in Brooklyn is 73%.

Rainfall

In Brooklyn, New York, during 4.9 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. Throughout the year, in Brooklyn, New York, there are 110.8 rainfall days, and 10.39" (264mm) of precipitation is accumulated.

Snowfall

January through April and December are months with snowfall in Brooklyn. In Brooklyn, during January, snow falls for 3.6 days and regularly aggregates up to 0.24" (6mm) of snow. In Brooklyn, during the entire year, snow falls for 13 days and aggregates up to 1.3" (33mm) of snow.

Ocean temperature

In January, the average ocean temperature is 42.4°F (5.8°C).
Note: 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.

Daylight

The average length of the day in January in Brooklyn, New York, is 9h and 40min.
On the first day of the month, sunrise is at 7:19 am and sunset at 4:39 pm. On the last day of January, sunrise is at 7:06 am and sunset at 5:12 pm EST.

Sunshine

In Brooklyn, the average sunshine in January 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. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In January, the average maximum UV index of 2 translate into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Brooklyn?

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

What is the average humidity in January in Brooklyn?

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

How many days does it rain in January in Brooklyn?

In Brooklyn, New York, during January, the rain falls for 4.9 days and regularly aggregates up to 0.55" (14mm) of precipitation.

How much does it snow in Brooklyn in January?

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

What is the ocean temperature in January in Brooklyn?

In January, the average ocean temperature in Brooklyn, New York, is 42.4°F (5.8°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What is the average length of the day in January in Brooklyn?

The average day length in January is 9h and 40min.

When 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 4:39 pm. On the last day of the month, in Brooklyn, New York, sunrise is at 7:06 am and sunset at 5:12 pm EST.

How long on average sun shines in January in Brooklyn?

In Brooklyn, New York, the average sunshine duration in January is 5.2h.

What is the month with the lowest UV index in Brooklyn?

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

What is the UV index reading in January in Brooklyn?

In Brooklyn, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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).

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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 40min

The month with the longest days is June (Average daylight: 15h and 2min).
The month with the shortest days is December (Average daylight: 9h and 19min).

  • Average sunshine in January: 5h and 12min

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).

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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).

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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).

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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).

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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).

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