Brooklyn
New York, USA
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Brooklyn, NY

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

Temperature

January is the coldest month, 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 Brooklyn, New York, is 73%.

Rainfall

In Brooklyn, New York, in January, it is raining for 4.9 days, with typically 0.55" (14mm) of accumulated precipitation. Throughout the year, 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, New York. In Brooklyn, snow falls for 3.6 days, with typically accumulated 0.24" (6mm) of snow. Throughout the year, there are 13 snowfall days, and 1.3" (33mm) of snow is accumulated.

Ocean temperature

In January, the average ocean temperature in Brooklyn 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

In Brooklyn, the average length of the day is 9.7h.

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. A UV Index reading of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 2 transform into the following instructions:
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. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the coldest month in Brooklyn?

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

What is the temperature in January in Brooklyn?

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

What is the average humidity in January in Brooklyn?

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

How much does it rain in Brooklyn in January?

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

How cold is the water in January in Brooklyn?

In Brooklyn, in January, the average water temperature is 42.4°F (5.8°C). Swimming in 42.4°F (5.8°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

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

In Brooklyn, the average length of the day in January is 9.7h.

How many hours of sunshine does Brooklyn have in January?

The average sunshine in January in Brooklyn is 5.2h.

What is the month 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.

What is the UV index intensity 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 unsafe exposure to the Sun's UV rays.
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 humidity in January - Brooklyn, NY
  • Average humidity in January: 73%

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

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 lowest rainfall) is September (0.51").

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 lowest number of rainy days is January (4.9 days).

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

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

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

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

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: 9.7h

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.3h).

  • Average sunshine in January: 5.2h

The month with most sunshine is July (Average sunshine: 10.7h).
The month with least sunshine is February (Average sunshine: 4.8h).

Average UV index in January - Brooklyn, NY
  • Average UV index in January: 2

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).