Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
With December's onset, the average high-temperature recedes from November's frosty 49.8°F (9.9°C) to a wintry 40.1°F (4.5°C). In the month of December, Oakland's average low-temperature falls to a subzero cold 28.9°F (-1.7°C).Humidity
February and December, with an average relative humidity of 80%, are the most humid months.Rainfall
In Oakland, in December, it is raining for 9.1 days, with typically 2.48" (63mm) of accumulated precipitation. Throughout the year, there are 148.6 rainfall days, and 26.18" (665mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Oakland, in December, snow falls for 4.1 days, with typically accumulated 2.6" (66mm) of snow. In Oakland, during the entire year, snow falls for 25.5 days and aggregates up to 15.83" (402mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:03 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:38 pm EST.
Sunshine
In December, the average sunshine is 4.7h.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 minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 2 during December leads to these instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What are the most humid months?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Oakland have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Oakland have in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Oakland, NJ
- Average high temperature in December: 40.1°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.5°F).
- Average low temperature in December: 28.9°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in December
Oakland, NJ
- Average pressure in December: 30.07"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
Oakland, NJ
- Average wind speed in December: 7.2mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Oakland, NJ
- Average humidity in December: 80%
The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are April, July and August (74%).
Average rainfall in December
Oakland, NJ
- Average rainfall in December: 2.48"
The wettest month (with the highest rainfall) is July (2.91").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in December
Oakland, NJ
- Average rainfall days in December: 9.1 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in December
Oakland, NJ
- Average snowfall in December: 2.6"
The month with the highest snowfall is March (4.25").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Oakland, NJ
- Average snowfall days in December: 4.1 days
The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Oakland, NJ
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in December
Oakland, NJ
- Average sunshine days in December: 17.7 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.9 days).
Average UV index in December
Oakland, 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
Oakland, NJ
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Oakland, NJ
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, July, August, October, November and December (6mi).
The months with the lowest visibility are February, May, June and September (5mi).
Oakland, New Jersey, USA
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