December weather forecast
Belvidere, NJ

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Weather in December

The first month of the winter, December, is also an icy month in Belvidere, New Jersey, with an average temperature fluctuating between 40.1°F (4.5°C) and 28.4°F (-2°C).

Temperature

December brings a drop in Belvidere's average high-temperature, falling from a chilly 49.8°F (9.9°C) in November to an icy 40.1°F (4.5°C). Nighttime temperatures in Belvidere hover around an average low of 28.4°F (-2°C) in December.

Humidity

In December, the average relative humidity in Belvidere is 80%.

Rainfall

In Belvidere, during December, the rain falls for 11.7 days and regularly aggregates up to 2.8" (71mm) of precipitation. In Belvidere, during the entire year, the rain falls for 157.6 days and collects up to 28.7" (729mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Belvidere. In December, it is snowing for 4.9 days. Throughout December, 2.4" (61mm) of snow is accumulated. Throughout the year, there are 30.4 snowfall days, and 14.76" (375mm) 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 7:05 am and sunset at 4:33 pm. On the last day of December, sunrise is at 7:24 am and sunset at 4:42 pm EST.

Sunshine

The average sunshine in December in Belvidere 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 estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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Frequently asked questions

How cold is it in Belvidere in December?

The average high-temperature and low-temperature in Belvidere during December are 40.1°F (4.5°C) and 28.4°F (-2°C) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 86°F (30°C).

What is the average humidity in December in Belvidere?

In Belvidere, New Jersey, the average relative humidity in December is 80%.

How much does it rain in Belvidere in December?

In Belvidere, New Jersey, during December, the rain falls for 11.7 days and regularly aggregates up to 2.8" (71mm) of precipitation.

How much does it snow in Belvidere in December?

In Belvidere, New Jersey, in December, snow falls for 4.9 days, with typically accumulated 2.4" (61mm) of snow.

What is the month with the shortest days in Belvidere?

December has the shortest days of the year, with an average of 9h and 18min of daylight.

What is the average length of the day in December in Belvidere?

In December, the average day length in Belvidere is 9h and 18min.

When are sunrise and sunset in December in Belvidere?

In December, on the first day of the month, sunrise is at 7:05 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:42 pm EST.

How many hours of sunshine does Belvidere have in December?

The average sunshine duration in December in Belvidere, New Jersey, is 4.7h.

When is the lowest UV index in Belvidere?

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

What is the UV index reading in December in Belvidere?

In Belvidere, New Jersey, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Belvidere, NJ

Average temperature in December - Belvidere, NJ
  • Average high temperature in December: 40.1°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in December: 28.4°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in December
Belvidere, NJ

Average pressure in December - Belvidere, NJ
  • Average pressure in December: 30.09"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).

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Average wind speed in December
Belvidere, NJ

Average wind speed in December - Belvidere, NJ
  • Average wind speed in December: 7.3mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in December
Belvidere, NJ

Average humidity in December - Belvidere, NJ
  • Average humidity in December: 80%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in December
Belvidere, NJ

Average rainfall in December - Belvidere, NJ
  • Average rainfall in December: 2.8"

The wettest month (with the highest rainfall) is July (2.87").
The driest month (with the least rainfall) is September (1.54").

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Average rainfall days in December
Belvidere, NJ

Average rainfall days in December - Belvidere, NJ
  • Average rainfall days in December: 11.7 days

The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (8.1 days).

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Average snowfall in December
Belvidere, NJ

Average snowfall in December - Belvidere, NJ
  • Average snowfall in December: 2.4"

The month with the highest snowfall is February (3.82").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Belvidere, NJ

Average snowfall days in December - Belvidere, NJ
  • Average snowfall days in December: 4.9 days

The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Belvidere, NJ

Average daylight in December / Average sunshine in December - Belvidere, 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 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in December
Belvidere, NJ

Average sunshine days in December - Belvidere, NJ
  • Average sunshine days in December: 16 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is April (11.8 days).

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Average UV index in December
Belvidere, NJ

Average UV index in December - Belvidere, NJ
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 6).
The 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
Belvidere, NJ

Average cloud cover in December - Belvidere, NJ
  • Average cloud cover in December: 49

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 34).

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Average visibility in December
Belvidere, NJ

Average visibility in December - Belvidere, NJ
  • Average visibility in December: 5mi

The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).

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Belvidere, New Jersey, USA

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