December weather forecastWells Mills, NJ
December
Weather in December
December, the first month of the winter in Wells Mills, is also a frosty month, with an average temperature varying between 45.9°F (7.7°C) and 37°F (2.8°C).Temperature
December ushers in a minute temperature change, with average high-temperatures reducing from November's cool 53.6°F (12°C) to a frosty 45.9°F (7.7°C). Wells Mills maintains an average of approximately a wintry 37°F (2.8°C) during December nights, with only a minimal decrease from the daytime temperature.Humidity
In Wells Mills, the average relative humidity in December is 76%.Rainfall
In December, the rain falls for 10.3 days. Throughout December, 1.81" (46mm) of precipitation is accumulated. In Wells Mills, during the entire year, the rain falls for 138.1 days and collects up to 17.4" (442mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Wells Mills, New Jersey, in December, snow falls for 2.1 days, with typically accumulated 0.94" (24mm) of snow. Throughout the year, there are 12.7 snowfall days, and 3.11" (79mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 6:59 am and sunset at 4:33 pm. On the last day of December, in Wells Mills, sunrise is at 7:18 am and sunset at 4:42 pm EST.
Sunshine
The average sunshine in December in Wells Mills is 5.2h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Wells Mills. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. 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
Average temperature in December
Wells Mills, NJ
- Average high temperature in December: 45.9°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in December: 37°F
The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in December
Wells Mills, 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 (29.94"Hg).
Average wind speed in December
Wells Mills, NJ
- Average wind speed in December: 11.6mph
The windiest month (with the highest average wind speed) is January (12.2mph).
The calmest month (with the lowest average wind speed) is August (8.1mph).
Average humidity in December
Wells Mills, NJ
- Average humidity in December: 76%
The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are January, March and November (74%).
Average rainfall in December
Wells Mills, NJ
- Average rainfall in December: 1.81"
The wettest month (with the highest rainfall) is July (2.09").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in December
Wells Mills, NJ
- Average rainfall days in December: 10.3 days
The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is January (7.4 days).
Average snowfall in December
Wells Mills, NJ
- Average snowfall in December: 0.94"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Wells Mills, NJ
- Average snowfall days in December: 2.1 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Wells Mills, NJ
- Average daylight in December: 9h and 24min
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 24min).
- Average sunshine in December: 5h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in December
Wells Mills, NJ
- Average sunshine days in December: 17.2 days
The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is July (12.5 days).
Average UV index in December
Wells Mills, 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, November and December (UV index 2).
Average cloud cover in December
Wells Mills, NJ
- Average cloud cover in December: 45
The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility in December
Wells Mills, 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).
