Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December comes with a drop in the average high-temperature, falling from November's fresh 50.9°F (10.5°C) to a wintry 41.9°F (5.5°C). In the month of December, Glen Ridge's average low-temperature falls to a subzero cold 31.1°F (-0.5°C).Humidity
The months with the highest humidity are February and December, with an average relative humidity of 77%.Rainfall
In Glen Ridge, during December, the rain falls for 11.8 days and regularly aggregates up to 3.11" (79mm) of precipitation. Throughout the year, there are 162.3 rainfall days, and 30.2" (767mm) of precipitation is accumulated.Snowfall
Months with snowfall in Glen Ridge are January through April, October through December. In Glen Ridge, in December, snow falls for 3.7 days, with typically accumulated 1.46" (37mm) of snow. Throughout the year, there are 23.9 snowfall days, and 9.21" (234mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:02 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:39 pm EST.
Sunshine
In Glen Ridge, the average sunshine in December is 4.9h.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 of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold in Glen Ridge during December?
What are the most humid months?
What is the average humidity in December?
How much does it rain in Glen Ridge in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Glen Ridge have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Glen Ridge, NJ
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure in December
Glen Ridge, 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 Ridge, NJ
- Average wind speed in December: 8.3mph
The windiest months (with the highest average wind speed) are January and March (8.9mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in December
Glen Ridge, NJ
- Average humidity in December: 77%
The months with the highest relative humidity are February and December (77%).
The months with the lowest relative humidity are April, July and August (72%).
Average rainfall in December
Glen Ridge, NJ
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is July (3.19").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in December
Glen Ridge, NJ
- Average rainfall days in December: 11.8 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is January (8.9 days).
Average snowfall in December
Glen Ridge, NJ
- Average snowfall in December: 1.46"
The month with the highest snowfall is February (2.8").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Glen Ridge, NJ
- Average snowfall days in December: 3.7 days
The month with the highest number of snowfall days is January (7.2 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
Glen Ridge, 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: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Glen Ridge, NJ
- Average sunshine days in December: 15.7 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in December
Glen Ridge, 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
Glen Ridge, NJ
- Average cloud cover in December: 47
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Glen Ridge, 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 Ridge, New Jersey, USA
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