December weather forecastWanamassa, NJ
December
Weather in December
December, the first month of the winter in Wanamassa, is still a chilly month, with an average temperature varying between 36.3°F (2.4°C) and 44.4°F (6.9°C).Temperature
The beginning of December subtly marks a decrease in the average high-temperature, transitioning from a cool 52.3°F (11.3°C) in November to a chilly 44.4°F (6.9°C). Throughout December, Wanamassa's nights experience a slight temperature dip to a cold 36.3°F (2.4°C).Humidity
In Wanamassa, the average relative humidity in December is 75%.Rainfall
In Wanamassa, in December, during 8.8 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. Throughout the year, there are 122.1 rainfall days, and 11.14" (283mm) of precipitation is accumulated.Snowfall
January through March, October and December are months with snowfall. The month with the most snowfall is December, when snow falls for 3.1 days and typically aggregates up to 0.47" (12mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:00 am and sunset at 4:30 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:40 pm EST.
Sunshine
The average sunshine in December is 5.1h.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 value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Wanamassa, NJ
- Average high temperature in December: 44.4°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (38.3°F).
- Average low temperature in December: 36.3°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).
Average pressure in December
Wanamassa, 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
Wanamassa, NJ
- Average wind speed in December: 11.9mph
The windiest month (with the highest average wind speed) is January (12.6mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in December
Wanamassa, NJ
- Average humidity in December: 75%
The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is November (73%).
Average rainfall in December
Wanamassa, NJ
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is July (1.38").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in December
Wanamassa, NJ
- Average rainfall days in December: 8.8 days
The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is November (6.8 days).
Average snowfall in December
Wanamassa, NJ
- Average snowfall in December: 0.47"
The month with the highest snowfall is December (0.47").
The months with the least snowfall are April, May, June, July, August, September and November (0").
Average snowfall days in December
Wanamassa, NJ
- Average snowfall days in December: 3.1 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Wanamassa, NJ
- Average daylight in December: 9h and 24min
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 24min).
- Average sunshine in December: 5h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Wanamassa, NJ
- Average sunshine days in December: 19.1 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (14.3 days).
Average UV index in December
Wanamassa, 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
Wanamassa, NJ
- Average cloud cover in December: 46
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Wanamassa, 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).
