December weather forecastWanaque, NJ
December
Weather in December
The first month of the winter, December, is also a wintry month in Wanaque, New Jersey, with temperature in the range of an average high of 40.1°F (4.5°C) and an average low of 28.9°F (-1.7°C).Temperature
Wanaque observes a minor decrease in the average high-temperature with the arrival of December, falling from November's chilly 49.8°F (9.9°C) to a cold 40.1°F (4.5°C). Throughout December, Wanaque experiences a low-temperature average of 28.9°F (-1.7°C).Humidity
The months with the highest humidity are February and December, with an average relative humidity of 80%.Rainfall
In Wanaque, in December, it is raining for 9.1 days, with typically 2.48" (63mm) of accumulated precipitation. In Wanaque, during the entire year, the rain falls for 148.6 days and collects up to 26.18" (665mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Wanaque, in December, snow falls for 4.1 days, with typically accumulated 2.6" (66mm) of snow. Throughout the year, there are 25.5 snowfall days, and 15.83" (402mm) of snow is accumulated.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:03 am and sunset at 4:29 pm. On the last day of December, sunrise is at 7:22 am and sunset at 4:38 pm EST.
Sunshine
In Wanaque, the average sunshine in December is 4.7h.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 exposure to the Sun's UV rays for the average person.Note: In December, the UV index of 2 transforms into the following advice:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Wanaque, NJ
- Average high temperature in December: 40.1°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.5°F).
- Average low temperature in December: 28.9°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in December
Wanaque, NJ
- Average pressure in December: 30.07"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
Wanaque, NJ
- Average wind speed in December: 7.2mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Wanaque, NJ
- Average humidity in December: 80%
The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are April, July and August (74%).
Average rainfall in December
Wanaque, NJ
- Average rainfall in December: 2.48"
The wettest month (with the highest rainfall) is July (2.91").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in December
Wanaque, NJ
- Average rainfall days in December: 9.1 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in December
Wanaque, NJ
- Average snowfall in December: 2.6"
The month with the highest snowfall is March (4.25").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Wanaque, NJ
- Average snowfall days in December: 4.1 days
The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Wanaque, NJ
- Average daylight in December: 9h and 18min
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 42min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in December
Wanaque, NJ
- Average sunshine days in December: 17.7 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.9 days).
Average UV index in December
Wanaque, 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
Wanaque, NJ
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Wanaque, NJ
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, July, August, October, November and December (6mi).
The months with the lowest visibility are February, May, June and September (5mi).
