December weather forecastWeehawken, NJ
December
Weather in December
December announces the arrival of winter in Weehawken with its signature blend of cooler temperatures and increased precipitation. Snowfall makes a reappearance, with an average of 1.61" (41mm) expected, adding to the holiday charm. With the reduction in daylight hours and a decline in the average temperature, December embraces its role as a winter month fully. This month also sees an increase in relative humidity, a common trait of winter months. All indicia foretell a typically cold and potentially snowy Christmas season for Weehawken.Temperature
The shift to December brings a decrease in the average high-temperature, falling from a cool 51.3°F (10.7°C) in November to a cold 42.1°F (5.6°C). Weehawken temperatures generally rest at a low of 32.9°F (0.5°C) during the December nights.Humidity
The months with the highest humidity are February and December, with an average relative humidity of 76%.Rainfall
December is the month with the most rainfall. Rain falls for 12.5 days and accumulates 3.78" (96mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Weehawken, during December, snow falls for 3.5 days and regularly aggregates up to 1.61" (41mm) of snow. In Weehawken, during the entire year, snow falls for 22.7 days and aggregates up to 10.79" (274mm) of snow.Ocean temperature
In December, the average ocean temperature is 47.1°F (8.4°C).Note: Swimming in 47.1°F (8.4°C) at temperatures under 50°F (10°C) requires thermal swimsuits; otherwise, one can face cold shock and breathing difficulty. Even brief immersion at 55.4°F (13°C) feels frosty.
Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:01 am and sunset at 4:29 pm. On the last day of December, sunrise is at 7:20 am and sunset at 4:38 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 estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 2 during December translates into the following guidance:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Weehawken, NJ
- Average high temperature in December: 42.1°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (36.3°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 (25.7°F).
Average pressure in December
Weehawken, NJ
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Weehawken, NJ
- Average wind speed in December: 9.2mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in December
Weehawken, NJ
- Average humidity in December: 76%
The months with the highest relative humidity are February and December (76%).
The month with the lowest relative humidity is August (70%).
Average rainfall in December
Weehawken, NJ
- Average rainfall in December: 3.78"
The wettest month (with the highest rainfall) is December (3.78").
The driest month (with the least rainfall) is September (2.2").
Average rainfall days in December
Weehawken, NJ
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (9 days).
Average snowfall in December
Weehawken, NJ
- Average snowfall in December: 1.61"
The month with the highest snowfall is March (3.86").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Weehawken, NJ
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is February (6.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in December
Weehawken, NJ
- Average sea temperature in December: 47.2°F
The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).
Average daylight in December /
Average sunshine in December
Weehawken, NJ
- Average daylight in December: 9h and 18min
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 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 48min).
Average sunshine days in December
Weehawken, NJ
- Average sunshine days in December: 15.9 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in December
Weehawken, 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
Weehawken, NJ
- Average cloud cover in December: 47
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Weehawken, 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).
