December weather forecast
South Amboy, NJ

Weather in December

The first month of the winter, December, is also a frosty month in South Amboy, New Jersey, with average temperature fluctuating between 33.4°F (0.8°C) and 43.3°F (6.3°C).

Temperature

In December, the average high-temperature marginally drops, from a fresh 52°F (11.1°C) in November, to a frosty 43.3°F (6.3°C). In December, the average low-temperature is 33.4°F (0.8°C).

Humidity

The average relative humidity in South Amboy is 76%.

Rainfall

The wettest months in South Amboy are July and December, with an average 3.31" (84mm) of rainfall.

Snowfall

Months with snowfall in South Amboy, New Jersey, are January through April, October through December. In South Amboy, in December, snow falls for 3.4 days, with typically accumulated 1.34" (34mm) of snow. In South Amboy, during the entire year, snow falls for 19.5 days, and aggregates up to 8.35" (212mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9.3h of daylight.

Sunshine

The average sunshine in South Amboy, New Jersey, 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 value of 2, and less, symbolizes a minimal health hazard from the exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 2 in December interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in December in South Amboy?

In December, the average relative humidity in South Amboy, New Jersey, is 76%.

What is the wettest month in South Amboy?

The wettest months in South Amboy are July and December, with an average 3.31" (84mm) of rainfall.

How much does it rain in South Amboy in December?

In South Amboy, New Jersey, in December, during 11.5 rainfall days, 3.31" (84mm) of precipitation is typically accumulated.

How much does it snow in South Amboy in December?

In South Amboy, New Jersey, during December, snow falls for 3.4 days and regularly aggregates up to 1.34" (34mm) of snow.

What is the month with the shortest days in South Amboy?

The month with the shortest days is December, with an average of 9.3h of daylight.

What is the average length of the day in December in South Amboy?

In South Amboy, the average length of the day in December is 9.3h.

How many hours of sunshine does South Amboy have in December?

The average sunshine in December in South Amboy is 4.9h.

What is the month with the lowest UV index in South Amboy?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in South Amboy, New Jersey.

What is the UV index intensity in December in South Amboy?

The average daily maximum UV index in December in South Amboy is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to the UV radiation.

Average temperature in December
South Amboy, NJ

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).

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Average pressure in December
South Amboy, NJ

Average pressure in December - South Amboy, NJ
  • Average pressure in December: 30.08"

The month with the highest atmospheric pressure is November (30.11").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in December
South Amboy, NJ

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).

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Average humidity in December
South Amboy, NJ

Average humidity in December - South Amboy, NJ
  • Average humidity in December: 76%

Months with the highest relative humidity are February and May (77%).
Months with the lowest relative humidity are March, April, August and November (73%).

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Average rainfall in December
South Amboy, NJ

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").

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Average rainfall days in December
South Amboy, NJ

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).

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Average snowfall in December
South Amboy, NJ

Average snowfall in December - South Amboy, NJ
  • Average snowfall in December: 1.34"

The month with the highest snowfall is March (3.39").
Months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
South Amboy, NJ

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).
Months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
South Amboy, NJ

Average daylight in December / Average sunshine in December - South Amboy, NJ
  • Average daylight in December: 9.3h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in December: 4.9h

The month with the most sunshine is July (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.7h).

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Average sunshine days in December
South Amboy, NJ

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).

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Average UV index in December
South Amboy, NJ

Average UV index in December - South Amboy, NJ
  • Average UV index in December: 2

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in December
South Amboy, NJ

Average cloud cover in December - South Amboy, NJ
  • Average cloud cover in December: 48

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).

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Average visibility in December
South Amboy, NJ

Average visibility in December - South Amboy, NJ
  • Average visibility in December: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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