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
A modest decline in the average high-temperature is seen during December, decreasing from a cool 54.1°F (12.3°C) in November to a chilly 46.2°F (7.9°C). December in Marmora is characterized by a steady nighttime low-temperature of 38.3°F (3.5°C).Humidity
The average relative humidity in December in Marmora, New Jersey, is 75%.Rainfall
In Marmora, in December, it is raining for 6.7 days, with typically 0.71" (18mm) of accumulated precipitation. Throughout the year, in Marmora, there are 104.9 rainfall days, and 7.48" (190mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, May and December. December is the first month it typically snows in Marmora. Throughout December, in the average 1.7 snowfall days, it receives 0.08" (2mm) of snow. In Marmora, New Jersey, during the entire year, snow falls for 8 days and aggregates up to 0.63" (16mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 6:59 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:45 pm EST.
Sunshine
The average sunshine in December in Marmora is 5.2h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: An average maximum UV index of 2 in December leads to these recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Marmora in December?
What is the average humidity in December in Marmora?
How many days does it rain in December in Marmora?
When does it start to snow in Marmora?
What is the month with the shortest days in Marmora?
What is the average length of the day in December in Marmora?
When is the sunrise / sunset in December in Marmora?
How long on average sun shines in December in Marmora?
When is the lowest UV index in Marmora?
How high is the UV index in December in Marmora?
Average temperature in December
Marmora, NJ
- Average high temperature in December: 46.2°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (39.9°F).
- Average low temperature in December: 38.3°F
The months with the highest average low temperature are July and August (72.1°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).
Average pressure in December
Marmora, 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 (29.94"Hg).
Average wind speed in December
Marmora, NJ
- Average wind speed in December: 11.9mph
The windiest month (with the highest average wind speed) is January (12.5mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in December
Marmora, NJ
- Average humidity in December: 75%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is November (73%).
Average rainfall in December
Marmora, NJ
- Average rainfall in December: 0.71"
The wettest months (with the highest rainfall) are May and August (0.79").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days in December
Marmora, NJ
- Average rainfall days in December: 6.7 days
The month with the highest number of rainy days is July (11.8 days).
The month with the least rainy days is November (5.7 days).
Average snowfall in December
Marmora, NJ
- Average snowfall in December: 0.08"
The months with the highest snowfall are January and February (0.2").
The months with the least snowfall are April, June, July, August, September, October and November (0").
Average snowfall days in December
Marmora, NJ
- Average snowfall days in December: 1.7 days
The month with the highest number of snowfall days is February (2.7 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
Marmora, NJ
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in December
Marmora, NJ
- Average sunshine days in December: 22.2 days
The month with the most sunshine days is January (22.9 days).
The month with the least sunshine days is July (15.1 days).
Average UV index in December
Marmora, 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 and December (UV index 2).
Average cloud cover in December
Marmora, NJ
- Average cloud cover in December: 44
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in December
Marmora, 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).
Marmora, New Jersey, USA
Weather forecast for your location
2. Allow the app to use your location