December weather forecastVernon Valley, NJ
December
Weather in December
December, the first month of the winter in Vernon Valley, is also an icy month, with temperature in the range of an average low of 26.8°F (-2.9°C) and an average high of 38.7°F (3.7°C).Temperature
December shows a mild decline in the average high-temperature, falling from November's chilly 48°F (8.9°C) to an icy 38.7°F (3.7°C). Vernon Valley experiences an average nighttime temperature of 26.8°F (-2.9°C) in the month of December.Humidity
February, October and December, with an average relative humidity of 82%, are the most humid months in Vernon Valley.Rainfall
In December, the rain falls for 9.4 days. Throughout December, 2.52" (64mm) of precipitation is accumulated. Throughout the year, there are 149.5 rainfall days, and 28.23" (717mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Vernon Valley. In December, in Vernon Valley, it is snowing for 5.5 days. Throughout December, 3.5" (89mm) of snow is accumulated. Throughout the year, there are 30.6 snowfall days, and 19.53" (496mm) 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 December in Vernon Valley, New Jersey, sunrise is at 7:04 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:39 pm EST.
Sunshine
In December, the average sunshine is 4.6h.UV index
December is the month with the lowest UV index in Vernon Valley, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 1 in December transforms into this advice:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Boost your sun resistance with garments that are densely woven yet spacious. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Vernon Valley, NJ
- Average high temperature in December: 38.7°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in December: 26.8°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Vernon Valley, 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
Vernon Valley, NJ
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Vernon Valley, NJ
- Average humidity in December: 82%
The months with the highest relative humidity are February, October and December (82%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Vernon Valley, NJ
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is July (3.31").
The driest month (with the least rainfall) is January (1.61").
Average rainfall days in December
Vernon Valley, NJ
- Average rainfall days in December: 9.4 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in December
Vernon Valley, NJ
- Average snowfall in December: 3.5"
The month with the highest snowfall is February (4.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Vernon Valley, NJ
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Vernon Valley, 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 36min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in December
Vernon Valley, NJ
- Average sunshine days in December: 17.8 days
The months with the most sunshine days are January and November (18.8 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in December
Vernon Valley, NJ
- Average UV index in December: 1
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Vernon Valley, NJ
- Average cloud cover in December: 51
The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in December
Vernon Valley, NJ
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
