December weather forecast
Ridgewood, NJ

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Weather in December

December, the first month of the winter in Ridgewood, is also a frosty month, with an average temperature varying between 43.2°F (6.2°C) and 34.7°F (1.5°C).

Temperature

The advent of December brings a slight shift in average high-temperature, moving from a fresh 52°F (11.1°C) in November to a chilly 43.2°F (6.2°C). Ridgewood in December observes a slight diminution in temperature from daily highs, recording a low-temperature average of 34.7°F (1.5°C).

Humidity

The average relative humidity in December is 75%.

Rainfall

In Ridgewood, in December, it is raining for 8.2 days, with typically 0.94" (24mm) of accumulated precipitation. Throughout the year, there are 110.8 rainfall days, and 10.39" (264mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April and December. December is the first month it typically snows. Throughout December, in the average 2.3 snowfall days, it receives 0.2" (5mm) of snow. In Ridgewood, New Jersey, during the entire year, snow falls for 13 days and aggregates up to 1.3" (33mm) of snow.

Daylight

December has the shortest days of the year in Ridgewood, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:02 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:38 pm EST.

Sunshine

In Ridgewood, the average sunshine in December is 5h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 2 in December translates into this advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold does it get in Ridgewood in December?

An average high-temperature, in December, in Ridgewood, is 43.2°F (6.2°C) and the average low-temperature is 34.7°F (1.5°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is evaluated at 86°F (30°C).

What is the average humidity in December in Ridgewood?

The average relative humidity in December is 75%.

How many days does it rain in December in Ridgewood?

In December, in Ridgewood, the rain falls for 8.2 days. Throughout December, 0.94" (24mm) of precipitation is accumulated.

When does it start to snow in Ridgewood?

December is the first month it typically snows. Throughout December, in the average 2.3 snowfall days, it receives 0.2" (5mm) of snow.

What is the month with the shortest days in Ridgewood?

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

What is the average length of the day in December in Ridgewood?

In December, the average day length in Ridgewood is 9h and 17min.

What time are sunrise and sunset in December in Ridgewood?

In December, on the first day of the month, sunrise is at 7:02 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:38 pm EST.

How many hours of sunshine does Ridgewood have in December?

In Ridgewood, the average sunshine duration in December is 5h.

What are the months with the lowest UV index in Ridgewood?

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

What is the UV index intensity in December in Ridgewood?

In December, the average daily maximum UV index in Ridgewood, New Jersey, is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Ridgewood, NJ

Average temperature in December - Ridgewood, NJ
  • Average high temperature in December: 43.2°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in December: 34.7°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

Average pressure in December
Ridgewood, NJ

Average pressure in December - Ridgewood, NJ
  • Average pressure in December: 30.07"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Ridgewood, NJ

Average wind speed in December - Ridgewood, NJ
  • Average wind speed in December: 10.7mph

The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).

Average humidity in December
Ridgewood, NJ

Average humidity in December - Ridgewood, NJ
  • Average humidity in December: 75%

The months with the highest relative humidity are February, May and June (76%).
The months with the lowest relative humidity are August and November (72%).

Average rainfall in December
Ridgewood, NJ

Average rainfall in December - Ridgewood, NJ
  • Average rainfall in December: 0.94"

The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is September (0.51").

Average rainfall days in December
Ridgewood, NJ

Average rainfall days in December - Ridgewood, NJ
  • Average rainfall days in December: 8.2 days

The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is January (4.9 days).

Average snowfall in December
Ridgewood, NJ

Average snowfall in December - Ridgewood, NJ
  • Average snowfall in December: 0.2"

The month with the highest snowfall is March (0.55").
The months with the least snowfall are May, June, July, August, September, October and November (0").

Average snowfall days in December
Ridgewood, NJ

Average snowfall days in December - Ridgewood, NJ
  • Average snowfall days in December: 2.3 days

The months with the highest number of snowfall days are January and February (3.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 5h and 0min

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 48min).

Average sunshine days in December
Ridgewood, NJ

Average sunshine days in December - Ridgewood, NJ
  • Average sunshine days in December: 20.6 days

The month with the most sunshine days is January (22 days).
The month with the least sunshine days is June (16 days).

Average UV index in December
Ridgewood, NJ

Average UV index in December - Ridgewood, 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, March, November and December (UV index 2).

Average cloud cover in December
Ridgewood, NJ

Average cloud cover in December - Ridgewood, NJ
  • Average cloud cover in December: 47

The 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 28).

Average visibility in December
Ridgewood, NJ

Average visibility in December - Ridgewood, 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).

Ridgewood, New Jersey, USA

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