December weather forecast and climate
Gloucester City, NJ

Weather in December

The first month of the winter, December, is also a frosty month in Gloucester City, New Jersey, with average temperature ranging between min 32.9°F (0.5°C) and max 44.1°F (6.7°C).

Temperature

In December, the average high-temperature marginally drops, from a fresh 52.7°F (11.5°C) in November, to a frosty 44.1°F (6.7°C). The average low-temperature, in December, is 32.9°F (0.5°C).

Humidity

In December, the average relative humidity in Gloucester City is 76%.

Rainfall

In Gloucester City, New Jersey, during 7.5 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. In Gloucester City, during the entire year, the rain falls for 127.8 days and collects up to 13.82" (351mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In Gloucester City, snow falls for 1.6 days, with typically accumulated 0.2" (5mm) of snow. Throughout the year, in Gloucester City, there are 11.4 snowfall days, and 2.87" (73mm) of snow is accumulated.

Daylight

With an average of 9.4h of daylight, December has the shortest days of the year.

Sunshine

In Gloucester City, the average sunshine in December is 5h.

UV index

Months with the lowest UV index in Gloucester City are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 2 transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Gloucester City?

In December, in Gloucester City, New Jersey, the average high-temperature is 44.1°F (6.7°C), and the average low-temperature is 32.9°F (0.5°C).

What is the average humidity in December in Gloucester City?

In Gloucester City, New Jersey, the average relative humidity in December is 76%.

How much does it rain in Gloucester City in December?

In Gloucester City, in December, during 7.5 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

How much does it snow in Gloucester City in December?

In Gloucester City, New Jersey, in December, during 1.6 snowfall days, 0.2" (5mm) of snow is typically accumulated.

What is the month with the shortest days in Gloucester City?

The month with the shortest days is December, with an average of 9.4h of daylight.

How many hours of daylight does Gloucester City have in December?

In Gloucester City, the average length of the day in December is 9.4h.

How long on average sun shines in December in Gloucester City?

In December, the average sunshine in Gloucester City, New Jersey, is 5h.

What is the month with the lowest UV index in Gloucester City?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in December in Gloucester City?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation.

Average temperature in December
Gloucester City, NJ

Average temperature in December - Gloucester City, NJ
  • Average high temperature in December: 44.1°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37.4°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 (25.5°F).

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Average pressure in December
Gloucester City, NJ

Average pressure in December - Gloucester City, NJ
  • Average pressure in December: 30.09"

The month with the highest atmospheric pressure is November (30.12").
The month with the lowest atmospheric pressure is June (29.94").

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Average wind speed in December
Gloucester City, NJ

Average wind speed in December - Gloucester City, NJ
  • Average wind speed in December: 7.7mph

The windiest months (with the highest average wind speed) are March and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in December
Gloucester City, NJ

Average humidity in December - Gloucester City, NJ
  • Average humidity in December: 76%

The month with the highest relative humidity is October (77%).
Months with the lowest relative humidity are April and August (71%).

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Average rainfall in December
Gloucester City, NJ

Average rainfall in December - Gloucester City, NJ
  • Average rainfall in December: 1.18"

The wettest month (with the highest rainfall) is August (1.65").
The driest months (with the least rainfall) are January and February (0.83").

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Average rainfall days in December
Gloucester City, NJ

Average rainfall days in December - Gloucester City, NJ
  • Average rainfall days in December: 7.5 days

The month with the highest number of rainy days is July (14.8 days).
The month with the least rainy days is February (7.2 days).

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Average snowfall in December
Gloucester City, NJ

Average snowfall in December - Gloucester City, NJ
  • Average snowfall in December: 0.2"

The month with the highest snowfall is February (0.98").
Months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Gloucester City, NJ

Average snowfall days in December - Gloucester City, NJ
  • Average snowfall days in December: 1.6 days

The month with the highest number of snowfall days is January (3.8 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Gloucester City, NJ

Average daylight in December / Average sunshine in December - Gloucester City, NJ
  • Average daylight in December: 9.4h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in December: 5h

The month with the most sunshine is July (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.8h).

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Average sunshine days in December
Gloucester City, NJ

Average sunshine days in December - Gloucester City, NJ
  • Average sunshine days in December: 20.9 days

The month with the most sunshine days is December (20.9 days).
The month with the least sunshine days is May (13.3 days).

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Average UV index in December
Gloucester City, NJ

Average UV index in December - Gloucester City, NJ
  • Average UV index in December: 2

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

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Average cloud cover in December
Gloucester City, NJ

Average cloud cover in December - Gloucester City, NJ
  • Average cloud cover in December: 46

Months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in December
Gloucester City, NJ

Average visibility in December - Gloucester City, 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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