December weather forecast
Flemington, NJ

Share

Weather in December

Closing the year, December in Flemington plunges into the thick of winter with temperatures dropping rapidly. A notable characteristic of the month is the dominance of cloudy days with the highest cloud coverage observed in the year. Snowfall sees a considerable rise, often resulting in blankets of white covering Flemington's landscapes. With wind speeds peaking and the sting of the cold air, it marks the return of a fully-fledged winter season. As the shortest daylight hours pervade, the holiday lights around the city bring warmth and festivity to the icy cold December days.

Temperature

Onset of December comes with a temperature decline, the average high falling from a cool 50.9°F (10.5°C) in November to a cold 41.9°F (5.5°C). Flemington witnesses an average low-temperature of 30.6°F (-0.8°C) throughout the month of December.

Humidity

In Flemington, the average relative humidity in December is 79%.

Rainfall

In Flemington, in December, it is raining for 7.7 days, with typically 1.14" (29mm) of accumulated precipitation. Throughout the year, there are 112.6 rainfall days, and 11.77" (299mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall. In Flemington, during December, snow falls for 2.6 days and regularly aggregates up to 0.79" (20mm) of snow. In Flemington, during the entire year, snow falls for 16.7 days and aggregates up to 3.98" (101mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:04 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:42 pm EST.

Sunshine

In Flemington, the average sunshine in December is 4.8h.

UV index

The months with the lowest UV index in Flemington are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, the maximum UV index of 2 suggests this advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.

Frequently asked questions

Is it cold during December?

In December, the average high-temperature and low-temperature are 41.9°F (5.5°C) and 30.6°F (-0.8°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is evaluated at 87.8°F (31°C).

What is the average humidity in December?

The average relative humidity in December is 79%.

How many days does it rain in December in Flemington?

In December, the rain falls for 7.7 days. Throughout December, 1.14" (29mm) of precipitation is accumulated.

How many days does it snow in December?

In Flemington, during December, snow falls for 2.6 days and regularly aggregates up to 0.79" (20mm) of snow.

What is the month with the shortest days?

With an average of 9h and 18min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

The average day length in December is 9h and 20min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:04 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:42 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 4.8h.

What are the months with the lowest UV index?

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

What is the UV index intensity in December?

In Flemington, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Flemington, NJ

Average temperature in December - Flemington, NJ
  • Average high temperature in December: 41.9°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in December: 30.6°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (23°F).

Average pressure in December
Flemington, NJ

Average pressure in December - Flemington, NJ
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Flemington, NJ

Average wind speed in December - Flemington, NJ
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in December
Flemington, NJ

Average humidity in December - Flemington, NJ
  • Average humidity in December: 79%

The months with the highest relative humidity are February and October (80%).
The month with the lowest relative humidity is April (75%).

Average rainfall in December
Flemington, NJ

Average rainfall in December - Flemington, NJ
  • Average rainfall in December: 1.14"

The wettest month (with the highest rainfall) is July (1.46").
The driest month (with the least rainfall) is September (0.63").

Average rainfall days in December
Flemington, NJ

Average rainfall days in December - Flemington, NJ
  • Average rainfall days in December: 7.7 days

The month with the highest number of rainy days is May (13.1 days).
The month with the least rainy days is January (5.5 days).

Average snowfall in December
Flemington, NJ

Average snowfall in December - Flemington, NJ
  • Average snowfall in December: 0.79"

The month with the highest snowfall is March (1.1").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Flemington, NJ

Average snowfall days in December - Flemington, NJ
  • Average snowfall days in December: 2.6 days

The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Flemington, NJ

Average daylight in December / Average sunshine in December - Flemington, NJ
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in December
Flemington, NJ

Average sunshine days in December - Flemington, NJ
  • Average sunshine days in December: 21.5 days

The month with the most sunshine days is November (22.2 days).
The month with the least sunshine days is June (15.6 days).

Average UV index in December
Flemington, NJ

Average UV index in December - Flemington, NJ
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in December
Flemington, NJ

Average cloud cover in December - Flemington, NJ
  • Average cloud cover in December: 50

The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in December
Flemington, NJ

Average visibility in December - Flemington, NJ
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, November and December (6mi).
The months with the lowest visibility are May, September and October (5mi).

Flemington, New Jersey, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location