December weather forecastOaklyn, NJ
December
Weather in December
The first month of the winter, December, is also a frosty month in Oaklyn, New Jersey, with an average temperature fluctuating between 44.1°F (6.7°C) and 32.9°F (0.5°C).Temperature
Oaklyn experiences a moderate temperature shift at the start of December, with average high-temperatures adjusting a bit from a fresh 52.7°F (11.5°C) in November to a chilly 44.1°F (6.7°C). In the month of December, Oaklyn experiences an average low-temperature of 32.9°F (0.5°C).Humidity
In December, the average relative humidity in Oaklyn is 76%.Rainfall
In Oaklyn, New Jersey, in December, during 7.5 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. Throughout the year, in Oaklyn, there are 127.8 rainfall days, and 13.82" (351mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall in Oaklyn. In Oaklyn, New Jersey, in December, snow falls for 1.6 days, with typically accumulated 0.2" (5mm) of snow. In Oaklyn, during the entire year, snow falls for 11.4 days and aggregates up to 2.87" (73mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Oaklyn.On the first day of the month, sunrise is at 7:03 am and sunset at 4:35 pm. On the last day of December, in Oaklyn, sunrise is at 7:21 am and sunset at 4:45 pm EST.
Sunshine
In December, the average sunshine in Oaklyn, New Jersey, is 5h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 2 in December translates into this advice:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. 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
Oaklyn, NJ
- Average high temperature in December: 44.1°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in December: 32.9°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure in December
Oaklyn, NJ
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Oaklyn, NJ
- Average wind speed in December: 7.7mph
The windiest months (with the highest average wind speed) are March and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Oaklyn, NJ
- Average humidity in December: 76%
The month with the highest relative humidity is October (77%).
The months with the lowest relative humidity are April and August (71%).
Average rainfall in December
Oaklyn, NJ
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is August (1.65").
The driest months (with the least rainfall) are January and February (0.83").
Average rainfall days in December
Oaklyn, NJ
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is July (14.8 days).
The month with the least rainy days is February (7.2 days).
Average snowfall in December
Oaklyn, NJ
- Average snowfall in December: 0.2"
The month with the highest snowfall is February (0.98").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Oaklyn, NJ
- Average snowfall days in December: 1.6 days
The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Oaklyn, 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 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Oaklyn, NJ
- Average sunshine days in December: 20.9 days
The month with the most sunshine days is December (20.9 days).
The month with the least sunshine days is May (13.3 days).
Average UV index in December
Oaklyn, 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, November and December (UV index 2).
Average cloud cover in December
Oaklyn, NJ
- Average cloud cover in December: 46
The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Oaklyn, 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).
