December weather forecastOldwick, NJ
December
Weather in December
The first month of the winter, December, is also an icy month in Oldwick, New Jersey, with an average temperature fluctuating between 30°F (-1.1°C) and 41.9°F (5.5°C).Temperature
Oldwick observes a minor decrease in the average high-temperature with the arrival of December, falling from November's fresh 50.9°F (10.5°C) to an icy 41.9°F (5.5°C). December is noted for a mean low-temperature of 30°F (-1.1°C).Humidity
In Oldwick, the average relative humidity in December is 79%.Rainfall
December is the month with the most rainfall. Rain falls for 11.5 days and accumulates 3.11" (79mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Oldwick, in December, during 4.3 snowfall days, 1.89" (48mm) of snow is typically accumulated. In Oldwick, New Jersey, during the entire year, snow falls for 25.8 days and aggregates up to 11.38" (289mm) 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 7:04 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:41 pm EST.
Sunshine
The average sunshine in December is 4.9h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Oldwick, NJ
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in December: 30°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (23°F).
Average pressure in December
Oldwick, 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
Oldwick, NJ
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Oldwick, NJ
- Average humidity in December: 79%
The months with the highest relative humidity are February and October (80%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
Oldwick, NJ
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is December (3.11").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in December
Oldwick, NJ
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in December
Oldwick, NJ
- Average snowfall in December: 1.89"
The month with the highest snowfall is March (3.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Oldwick, NJ
- Average snowfall days in December: 4.3 days
The month with the highest number of snowfall days is January (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Oldwick, 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 36min).
Average sunshine days in December
Oldwick, NJ
- Average sunshine days in December: 16.1 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (12.2 days).
Average UV index in December
Oldwick, 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
Oldwick, NJ
- Average cloud cover in December: 48
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in December
Oldwick, NJ
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
