December weather forecastSpotswood, NJ
December
Weather in December
December, the first month of the winter in Spotswood, is still a chilly month, with an average temperature varying between 32.7°F (0.4°C) and 43.2°F (6.2°C).Temperature
December witnesses a gentle descent in average high-temperature, descending from November's fresh 52°F (11.1°C) to a chilly 43.2°F (6.2°C). In December, the temperature drops to an average of 32.7°F (0.4°C) at night.Humidity
The months with the highest humidity are February, May, October and December, with an average relative humidity of 77%.Rainfall
In Spotswood, during December, the rain falls for 6.5 days and regularly aggregates up to 0.79" (20mm) of precipitation. Throughout the year, there are 92.9 rainfall days, and 7.32" (186mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Spotswood, during December, snow falls for 2.2 days and regularly aggregates up to 0.35" (9mm) of snow. In Spotswood, during the entire year, snow falls for 12.7 days and aggregates up to 1.5" (38mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:01 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:41 pm EST.
Sunshine
In December, the average sunshine 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 reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 during December translates into the following guidance:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Spotswood, NJ
- Average high temperature in December: 43.2°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in December: 32.7°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in December
Spotswood, 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
Spotswood, NJ
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is March (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in December
Spotswood, NJ
- Average humidity in December: 77%
The months with the highest relative humidity are February, May, October and December (77%).
The months with the lowest relative humidity are April and August (73%).
Average rainfall in December
Spotswood, NJ
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is July (0.94").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in December
Spotswood, NJ
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is July (10.7 days).
The months with the least rainy days are January and November (4.8 days).
Average snowfall in December
Spotswood, NJ
- Average snowfall in December: 0.35"
The month with the highest snowfall is March (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Spotswood, NJ
- Average snowfall days in December: 2.2 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Spotswood, NJ
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 54min
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
Spotswood, NJ
- Average sunshine days in December: 23 days
The month with the most sunshine days is January (24.2 days).
The month with the least sunshine days is July (15.7 days).
Average UV index in December
Spotswood, 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, March, November and December (UV index 2).
Average cloud cover in December
Spotswood, NJ
- Average cloud cover in December: 48
The months with the most cloud cover are February, March and December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in December
Spotswood, 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).
