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

December weather forecast and climate
New York, NY

The sunset view over New York city skyscrapers in New York, with the dramatic night sky
The sunset view over New York city skyscrapers in New York, with the dramatic night sky
December in New York is the official first winter month. It is characterized by an average humidity of 64% and a further decrease in temperatures to 39.2°F (4°C) minimum average and 55.4°F (13°C) maximum average. At night, the temperatures come below the freezing point. Snow falls from the middle of December onwards, with the average snow days being two and a half.
Rainfall experienced in December is moderately higher as it progresses for an average of eleven days the whole month to collect at 3.3" (83.8mm) in the rain gauge. Thunderstorms and flooding are rare owing to the minimal rain, but it may be accompanied by harsh cold winds in the late afternoons.
The ocean temperature remains steady at 57.2°F (14°C), as does the humidity at 64%. With the chilly winds experienced in December, long-term outdoor activities may get unlikely for visitors. The locals endure as they are used to this weather conditions.
The sun shines for nearly six hours per day, albeit weakly. This allows for snow skating and basking at the least. Most tourists leave New York for warmer cities as the cold temperatures keep dropping with the progressing of winter.

What is the temperature in December in New York?

The average high-temperature, in December, in New York, New York, is 43°F (6.1°C), while the average low-temperature is 32°F (0°C).

What is the average humidity in December in New York?

In December, the average relative humidity in New York is 64.1%.

How many days does it rain in December in New York?

In New York, in December, during 10.6 rainfall days, 4" (101.6mm) of precipitation is typically accumulated.

How much does it snow in New York in December?

In New York, during December, snow falls for 2.3 days and regularly aggregates up to 4.8" (121.9mm) of snow.

What is the ocean temperature in December in New York?

In New York, in December, the average water temperature is 47.1°F (8.4°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 month with the shortest days in New York?

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

How many hours of daylight does New York have in December?

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

What is the month with the least sunshine in New York?

With an average of 4.5h of sunshine, December has the least sunshine of the year in New York, New York.

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

The average sunshine in December in New York, New York, is 4.5h.

When is the lowest UV index in New York?

December is the month with the lowest UV index in New York, New York, with an average maximum UV index of 1.

What is the UV index reading in December in New York?

The average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to the UV radiation.
Average temperature in December - New York, NY
  • Average high temperature in December: 43°F

The warmest month (with the highest average high temperature) is July (84.1°F).
The month with the lowest average high temperature is January (38.3°F).

  • Average low temperature in December: 32°F

The month with the highest average low temperature is July (68.8°F).
The coldest month (with the lowest average low temperature) is January (26.9°F).

Average humidity in December - New York, NY
  • Average humidity in December: 64.1%

The month with the highest relative humidity is September (67.8%).
The month with the lowest relative humidity is April (55.3%).

Average rainfall in December - New York, NY
  • Average rainfall in December: 4"

The wettest month (with the highest rainfall) is July (4.6").
The driest month (with the lowest rainfall) is February (3.1").

Average rainfall days in December - New York, NY
  • Average rainfall days in December: 10.6 days

The month with the highest number of rainy days is April (11.5 days).
The month with the lowest number of rainy days is September (8.7 days).

Average snowfall in December - New York, NY
  • Average snowfall in December: 4.8"

The month with the highest snowfall is February (9.2").
Months with the lowest snowfall are May, June, July, August, September and October (0").

Average snowfall days in December - New York, NY
  • Average snowfall days in December: 2.3 days

The month with the highest number of snowfall days is January (4 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in December - New York, NY
  • Average sea temperature in December: 47.2°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 (39.7°F).

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 shortest days is December (Average daylight: 9.3h).

  • Average sunshine in December: 4.5h

Months with most sunshine are July and August (Average sunshine: 8.7h).
The month with least sunshine is December (Average sunshine: 4.5h).

Average UV index in December - New York, NY
  • Average UV index in December: 1

Months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 1).