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
Glen Ridge, New Jersey, in December undergoes a mild reduction in the average high-temperature, shifting from November's cool 50.9°F (10.5°C) to an icy 41.9°F (5.5°C). During the nights in December, an average low-temperature of 31.1°F (-0.5°C) is observed in Glen Ridge.Humidity
The months with the highest humidity are February and December, with an average relative humidity of 77%.Rainfall
In December, in Glen Ridge, the rain falls for 11.8 days. Throughout December, 3.11" (79mm) of precipitation is accumulated. In Glen Ridge, during the entire year, the rain falls for 162.3 days and collects up to 30.2" (767mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Glen Ridge. In Glen Ridge, New Jersey, in December, snow falls for 3.7 days, with typically accumulated 1.46" (37mm) of snow. Throughout the year, in Glen Ridge, there are 23.9 snowfall days, and 9.21" (234mm) of snow is accumulated.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in Glen Ridge.On the first day of the month, sunrise is at 7:02 am and sunset at 4:29 pm. On the last day of December, sunrise is at 7:20 am and sunset at 4:39 pm EST.
Sunshine
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 estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Frequently asked questions
How cold is it in Glen Ridge in December?
What are the most humid months in Glen Ridge?
What is the average humidity in December in Glen Ridge?
How many days does it rain in December in Glen Ridge?
How much does it snow in Glen Ridge in December?
What is the month with the shortest days in Glen Ridge?
How many hours of daylight does Glen Ridge have in December?
When are sunrise and sunset in December in Glen Ridge?
How long on average sun shines in December in Glen Ridge?
What are the months with the lowest UV index in Glen Ridge?
What is the UV index reading in December in Glen Ridge?
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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