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

December weather forecast and Climate
New York, NY

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.
  • Average high temperature in December: 43°F

Warmest month (with highest average high temperature) is July (84.1°F).
Month with lowest average high temperature is January (38.3°F).

  • Average low temperature in December: 32°F

Month with highest average low temperature is July (68.8°F).
Coldest month (with lowest average low temperature) is January (26.9°F).

  • Average humidity in December: 64.1%

Month with highest relative humidity is September (67.8%).
Month with lowest relative humidity is April (55.3%).

  • Average rainfall in December: 4"

Wettest month (with highest rainfall) is July (4.6").
Driest month (with lowest rainfall) is February (3.1").

  • Average rainfall days in December: 10.6 days

Month with highest number of rainy days is April (11.5 days).
Month with lowest number of rainy days is September (8.7 days).

  • Average snowfall in December: 4.8"

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

  • Average snowfall days in December: 2.3 days

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

  • Average sea temperature in December: 50°F

Best month for swimming (with highest average sea temperature) is August (73°F).
Coldest months (with lowest average sea temperature) are February and March (41°F).

  • Average daylight in December: 9h

Months with longest days are June and July (Average daylight: 15h).
Month with shortest days is December (Average daylight: 9h).

  • Average sunshine in December: 4.5h

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

  • Average UV index in December: 1

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