December weather forecast
Fair Haven, NJ

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Weather in December

December, the first month of the winter in Fair Haven, is still a chilly month, with temperature in the range of an average low of 36°F (2.2°C) and an average high of 44.2°F (6.8°C).

Temperature

During the shift to December, Fair Haven records a mild decrease in average high-temperature, moving from a cool 52.3°F (11.3°C) in November to a chilly 44.2°F (6.8°C). The nights of December in Fair Haven, New Jersey, are characterized by an average low-temperature of 36°F (2.2°C), subtly descending from daytime highs.

Humidity

In Fair Haven, the average relative humidity in December is 75%.

Rainfall

In Fair Haven, in December, during 9.2 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. In Fair Haven, during the entire year, the rain falls for 125.1 days and collects up to 12.64" (321mm) of precipitation.

Snowfall

Months with snowfall in Fair Haven are January through March, October and December. The month with the most snowfall is December, when snow falls for 3.3 days and typically aggregates up to 0.47" (12mm) of snow.

Ocean temperature

In December, the average ocean temperature in Fair Haven, New Jersey, is 48°F (8.9°C).
Note: Swimming in 48°F (8.9°C) is deemed hazardous. Exposure to temperatures below 50°F (10°C) leads to immediate severe cold shock and hyperventilation.

Daylight

The month with the shortest days in Fair Haven, New Jersey, is December, with an average of 9h and 24min of daylight.
On the first day of December in Fair Haven, sunrise is at 7:00 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:39 pm EST.

Sunshine

The average sunshine in December is 5.1h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In December, the maximum UV index of 2 suggests this advice:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Frequently asked questions

How cold does it get in Fair Haven in December?

In Fair Haven, in December, the average high-temperature is 44.2°F (6.8°C), and the average low-temperature is 36°F (2.2°C).

What is the average humidity in December in Fair Haven?

In December, the average relative humidity in Fair Haven is 75%.

How much does it rain in Fair Haven in December?

In December, the rain falls for 9.2 days. Throughout December, 1.18" (30mm) of precipitation is accumulated.

When does it snow the most in Fair Haven?

December is the month with the most snowfall. Snow falls for 3.3 days and accumulates 0.47" (12mm) of snow.

When does it start snowing in Fair Haven?

December is the first month it typically snows in Fair Haven, New Jersey. Throughout December, in the average 3.3 snowfall days, it receives 0.47" (12mm) of snow.

What is the water temperature in December in Fair Haven?

In Fair Haven, in December, the average water temperature is 48°F (8.9°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What is the month with the shortest days in Fair Haven?

The month with the shortest days in Fair Haven is December, with an average of 9h and 24min of daylight.

What is the average length of the day in December in Fair Haven?

In Fair Haven, the average day length in December is 9h and 21min.

When is the sunrise / sunset in December in Fair Haven?

On the first day of December in Fair Haven, New Jersey, sunrise is at 7:00 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:39 pm EST.

How many hours of sunshine does Fair Haven have in December?

In Fair Haven, New Jersey, the average sunshine duration in December is 5.1h.

What is the month with the lowest UV index in Fair Haven?

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

What is the UV index intensity in December in Fair Haven?

In December, the average daily maximum UV index in Fair Haven is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from 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
Fair Haven, NJ

Average temperature in December - Fair Haven, NJ
  • Average high temperature in December: 44.2°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in December: 36°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

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Average pressure in December
Fair Haven, NJ

Average pressure in December - Fair Haven, 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).

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Average wind speed in December
Fair Haven, NJ

Average wind speed in December - Fair Haven, NJ
  • Average wind speed in December: 11.7mph

The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).

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Average humidity in December
Fair Haven, NJ

Average humidity in December - Fair Haven, NJ
  • Average humidity in December: 75%

The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is November (73%).

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Average rainfall in December
Fair Haven, NJ

Average rainfall in December - Fair Haven, NJ
  • Average rainfall in December: 1.18"

The wettest month (with the highest rainfall) is July (1.61").
The driest month (with the least rainfall) is January (0.63").

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Average rainfall days in December
Fair Haven, NJ

Average rainfall days in December - Fair Haven, NJ
  • Average rainfall days in December: 9.2 days

The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (6.5 days).

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Average snowfall in December
Fair Haven, NJ

Average snowfall in December - Fair Haven, NJ
  • Average snowfall in December: 0.47"

The month with the highest snowfall is December (0.47").
The months with the least snowfall are April, May, June, July, August, September and November (0").

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Average snowfall days in December
Fair Haven, NJ

Average snowfall days in December - Fair Haven, NJ
  • Average snowfall days in December: 3.3 days

The month with the highest number of snowfall days is January (3.9 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

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Average sea temperature in December
Fair Haven, NJ

Average sea temperature in December - Fair Haven, NJ
  • Average sea temperature in December: 48.1°F

The best month for swimming (with the highest average sea temperature) is August (74.8°F).
The coldest month (with the lowest average sea temperature) is February (40.4°F).

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Average daylight in December /
Average sunshine in December
Fair Haven, NJ

Average daylight in December / Average sunshine in December - Fair Haven, 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 24min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in December
Fair Haven, NJ

Average sunshine days in December - Fair Haven, NJ
  • Average sunshine days in December: 19.1 days

The month with the most sunshine days is November (21.6 days).
The month with the least sunshine days is July (13 days).

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Average UV index in December
Fair Haven, NJ

Average UV index in December - Fair Haven, 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, November and December (UV index 2).

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Average cloud cover in December
Fair Haven, NJ

Average cloud cover in December - Fair Haven, NJ
  • Average cloud cover in December: 46

The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 28).

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Average visibility in December
Fair Haven, NJ

Average visibility in December - Fair Haven, 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).

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Fair Haven, New Jersey, USA

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