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
December is characterized by a mild reduction in the average high-temperature, from a fresh 52°F (11.1°C) in November to a frosty 43.3°F (6.3°C). The month of December records an average low-temperature of 33.4°F (0.8°C) in South Amboy.Humidity
In December, the average relative humidity in South Amboy, New Jersey, is 76%.Rainfall
The months with the most rainfall are July and December, with an average 3.31" (84mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in South Amboy. In South Amboy, in December, during 3.4 snowfall days, 1.34" (34mm) of snow is typically accumulated. Throughout the year, there are 19.5 snowfall days, and 8.35" (212mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:01 am and sunset at 4:31 pm. On the last day of December, in South Amboy, sunrise is at 7:20 am and sunset at 4:40 pm EST.
Sunshine
In South Amboy, 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 unsafe exposure to UV radiation for the ordinary person.Note: A maximum UV index of 2 in December translates into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold in South Amboy?
What is the average humidity in December in South Amboy?
What is the rainiest month in South Amboy?
How many days does it rain in December in South Amboy?
How much does it snow in South Amboy in December?
What is the month with the shortest days in South Amboy?
What is the average length of the day in December in South Amboy?
What time are sunrise and sunset in December in South Amboy?
How many hours of sunshine does South Amboy have in December?
When is the lowest UV index in South Amboy?
What is the UV index intensity in December in South Amboy?
Average temperature in December
South Amboy, NJ
- Average high temperature in December: 43.3°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in December: 33.4°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure in December
South Amboy, 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
South Amboy, NJ
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in December
South Amboy, NJ
- Average humidity in December: 76%
The months with the highest relative humidity are February and May (77%).
The months with the lowest relative humidity are March, April, August and November (73%).
Average rainfall in December
South Amboy, NJ
- Average rainfall in December: 3.31"
The wettest months (with the highest rainfall) are July and December (3.31").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in December
South Amboy, NJ
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in December
South Amboy, NJ
- Average snowfall in December: 1.34"
The month with the highest snowfall is March (3.39").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
South Amboy, NJ
- Average snowfall days in December: 3.4 days
The month with the highest number of snowfall days is January (5.8 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
South Amboy, NJ
- Average daylight in December: 9h and 2min
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 5min
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 42min).
Average sunshine days in December
South Amboy, NJ
- Average sunshine days in December: 15.8 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (12.2 days).
Average UV index in December
South Amboy, 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
South Amboy, NJ
- Average cloud cover in December: 48
The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
South Amboy, 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).
South Amboy, New Jersey, USA
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