December weather forecast
Glen Cedar City, NJ

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Weather in December

December, the first month of the winter in Glen Cedar City, is also a frosty month, with temperature in the range of an average high of 45°F (7.2°C) and an average low of 36.1°F (2.3°C).

Temperature

The arrival of December corresponds with a light shift in temperature, down from a fresh 53.1°F (11.7°C) in November to a chilly 45°F (7.2°C). Glen Cedar City records a slight downturn to an average a wintry 36.1°F (2.3°C) during the nights of December.

Humidity

In Glen Cedar City, the average relative humidity in December is 77%.

Rainfall

In December, the rain falls for 9.6 days. Throughout December, 1.5" (38mm) of precipitation is accumulated. Throughout the year, there are 129.4 rainfall days, and 15.31" (389mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. December is the month with the most snowfall in Glen Cedar City. Snow falls for 2.8 days and accumulates 0.75" (19mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:00 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:41 pm EST.

Sunshine

The average sunshine in December is 5.1h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 2 in December interprets into the following advice:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average December temperature?

The average high-temperature, in December, in Glen Cedar City, is 45°F (7.2°C), while the average low-temperature is 36.1°F (2.3°C). In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 86°F (30°C).

What is the average humidity in December?

In Glen Cedar City, the average relative humidity in December is 77%.

How many days does it rain in December?

In Glen Cedar City, during December, the rain falls for 9.6 days and regularly aggregates up to 1.5" (38mm) of precipitation.

What is the snowiest month?

The month with the most snowfall is December, when snow falls for 2.8 days and typically aggregates up to 0.75" (19mm) of snow.

How many days does it snow in December?

In Glen Cedar City, during December, snow falls for 2.8 days and regularly aggregates up to 0.75" (19mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

What is the average length of the day in December?

In Glen Cedar City, the average day length in December is 9h and 23min.

When is the sunrise / sunset in December in Glen Cedar City?

In December, on the first day of the month, sunrise is at 7:00 am and sunset at 4:32 pm. On the last day of the month, in Glen Cedar City, sunrise is at 7:18 am and sunset at 4:41 pm EST.

How long on average sun shines in December?

In Glen Cedar City, the average sunshine duration in December is 5.1h.

What is the month with the lowest UV index?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Glen Cedar City.

How high is the UV index in December?

In Glen Cedar City, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
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
Glen Cedar City, NJ

Average temperature in December - Glen Cedar City, NJ
  • Average high temperature in December: 45°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in December: 36.1°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

Average pressure in December
Glen Cedar City, NJ

Average pressure in December - Glen Cedar City, NJ
  • Average pressure in December: 30.08"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
Glen Cedar City, NJ

Average wind speed in December - Glen Cedar City, NJ
  • Average wind speed in December: 11.1mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).

Average humidity in December
Glen Cedar City, NJ

Average humidity in December - Glen Cedar City, NJ
  • Average humidity in December: 77%

The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are January, March and November (74%).

Average rainfall in December
Glen Cedar City, NJ

Average rainfall in December - Glen Cedar City, NJ
  • Average rainfall in December: 1.5"

The wettest month (with the highest rainfall) is July (1.97").
The driest month (with the least rainfall) is January (0.79").

Average rainfall days in December
Glen Cedar City, NJ

Average rainfall days in December - Glen Cedar City, NJ
  • Average rainfall days in December: 9.6 days

The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is January (6.9 days).

Average snowfall in December
Glen Cedar City, NJ

Average snowfall in December - Glen Cedar City, NJ
  • Average snowfall in December: 0.75"

The month with the highest snowfall is December (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Glen Cedar City, NJ

Average snowfall days in December - Glen Cedar City, NJ
  • Average snowfall days in December: 2.8 days

The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Glen Cedar City, NJ

Average daylight in December / Average sunshine in December - Glen Cedar City, 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 24min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in December
Glen Cedar City, NJ

Average sunshine days in December - Glen Cedar City, NJ
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (13.9 days).

Average UV index in December
Glen Cedar City, NJ

Average UV index in December - Glen Cedar City, NJ
  • Average UV index in December: 2

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

Average cloud cover in December
Glen Cedar City, NJ

Average cloud cover in December - Glen Cedar City, NJ
  • Average cloud cover in December: 46

The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 28).

Average visibility in December
Glen Cedar City, NJ

Average visibility in December - Glen Cedar City, NJ
  • Average visibility in December: 6mi

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

Glen Cedar City, New Jersey, USA

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