December weather forecast and climate
New York, NY

The sunset view over skyscrapers in New York City, USA
The sunset view over skyscrapers in New York City, USA

Weather in December

The first month of the winter, December, is also a wintry month in New York, New York, with average temperature ranging between max 42.3°F (5.7°C) and min 32.9°F (0.5°C).

Temperature

In December, the average high-temperature decreases, from a fresh 51.4°F (10.8°C) in November, to a cold 42.3°F (5.7°C). In December, in New York, the average low-temperature is 32.9°F (0.5°C).

Humidity

Months with the highest humidity are February and December, with an average relative humidity of 76%.

Rainfall

In New York, New York, it is raining for 12.1 days, with typically 3.5" (89mm) of accumulated precipitation. Throughout the year, in New York, there are 169 rainfall days, and 36.65" (931mm) of precipitation is accumulated.

Snowfall

Months with snowfall in New York are January through April, November and December. In New York, snow falls for 3 days, with typically accumulated 1.34" (34mm) of snow. In New York, during the entire year, snow falls for 19.2 days, and aggregates up to 7.8" (198mm) of snow.

Ocean temperature

In New York, in December, the average water temperature is 47.1°F (8.4°C).
Note: Swimming in 47.1°F (8.4°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

December has the shortest days of the year in New York, with an average of 9.3h of daylight.

Sunshine

The average sunshine in December is 4.9h.

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 value of 2, and less, symbolizes a low threat to health from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 2 in December transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in New York?

The average high-temperature, in December, is 42.3°F (5.7°C), while the average low-temperature is 32.9°F (0.5°C).

What are the most humid months in New York?

February and December, with an average relative humidity of 76%, are most humid months.

What is the average humidity in December in New York?

In December, the average relative humidity in New York is 76%.

How much does it rain in New York in December?

In December, the rain falls for 12.1 days. Throughout December, 3.5" (89mm) of precipitation is accumulated.

How much does it snow in New York in December?

In New York, during December, snow falls for 3 days and regularly aggregates up to 1.34" (34mm) of snow.

What is the ocean temperature in December in New York?

In December, the average ocean temperature in New York is 47.1°F (8.4°C). Swimming in 47.1°F (8.4°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.

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

With an average of 9.3h of daylight, December has the shortest days of the year.

What is the average length of the day in December in New York?

The average length of the day in December in New York is 9.3h.

How long on average sun shines in December in New York?

In New York, New York, the average sunshine in December is 4.9h.

When is the lowest UV index in New York?

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

How high is the UV index in December in New York?

In New York, New York, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health threat from unsafe exposure to the Sun's UV rays.

Average temperature in December
New York, NY

Average temperature in December - New York, NY
  • Average high temperature in December: 5.7°C

The warmest month (with the highest average high temperature) is July (28.3°C).
The month with the lowest average high temperature is January (2.5°C).

  • Average low temperature in December: 0.5°C

The month with the highest average low temperature is July (20.8°C).
The coldest month (with the lowest average low temperature) is January (-3.3°C).

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Average pressure in December
New York, NY

Average pressure in December - New York, NY
  • Average pressure in December: 1018.4mbar

The month with the highest atmospheric pressure is November (1019.4mbar).
The month with the lowest atmospheric pressure is June (1013.6mbar).

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Average wind speed in December
New York, NY

Average wind speed in December - New York, NY
  • Average wind speed in December: 15.1km/h

The windiest month (with the highest average wind speed) is January (16km/h).
The calmest month (with the lowest average wind speed) is July (10.7km/h).

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Average humidity in December
New York, NY

Average humidity in December - New York, NY
  • Average humidity in December: 76%

Months with the highest relative humidity are February and December (76%).
The month with the lowest relative humidity is August (70%).

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Average rainfall in December
New York, NY

Average rainfall in December - New York, NY
  • Average rainfall in December: 89mm

The wettest month (with the highest rainfall) is July (102mm).
The driest month (with the least rainfall) is January (55mm).

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Average rainfall days in December
New York, NY

Average rainfall days in December - New York, NY
  • Average rainfall days in December: 12.1 days

The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is January (9.1 days).

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Average snowfall in December
New York, NY

Average snowfall in December - New York, NY
  • Average snowfall in December: 34mm

The month with the highest snowfall is March (67mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

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Average snowfall days in December
New York, NY

Average snowfall days in December - New York, NY
  • Average snowfall days in December: 3 days

The month with the highest number of snowfall days is January (5.8 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in December
New York, NY

Average sea temperature in December - New York, NY
  • Average sea temperature in December: 8.4°C

The best month for swimming (with the highest average sea temperature) is August (23.4°C).
The coldest month (with the lowest average sea temperature) is February (4.3°C).

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Average daylight in December /
Average sunshine in December
New York, NY

Average daylight in December / Average sunshine in December - New York, NY
  • Average daylight in December: 9.3h

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

  • Average sunshine in December: 4.9h

The month with the most sunshine is July (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.7h).

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Average sunshine days in December
New York, NY

Average sunshine days in December - New York, NY
  • Average sunshine days in December: 15.7 days

The month with the most sunshine days is January (17.9 days).
The month with the least sunshine days is June (9.8 days).

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Average UV index in December
New York, NY

Average UV index in December - New York, NY
  • Average UV index in December: 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).

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Average cloud cover in December
New York, NY

Average cloud cover in December - New York, NY
  • Average cloud cover in December: 47

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 30).

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Average visibility in December
New York, NY

Average visibility in December - New York, NY
  • Average visibility in December: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).

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