December weather forecast and climate
Carlstadt, NJ

The first month of the winter, December, is still a cold month in Carlstadt, New Jersey, with temperature in the range of an average high of 41.9°F (5.5°C) and an average low of 31.8°F (-0.1°C).

Temperature

In December, the average high-temperature decreases, from a cool 50.9°F (10.5°C) in November, to a wintry 41.9°F (5.5°C). In December, in Carlstadt, the average low-temperature is 31.8°F (-0.1°C).

Humidity

February and December, with an average relative humidity of 77%, are most humid months in Carlstadt, New Jersey.

Rainfall

In Carlstadt, in December, during 11.6 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. Throughout the year, there are 162.7 rainfall days, and 29.72" (755mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Carlstadt are January through April, November and December. In Carlstadt, during December, snow falls for 3.4 days and regularly aggregates up to 1.18" (30mm) of snow. In Carlstadt, during the entire year, snow falls for 22 days, and aggregates up to 8.19" (208mm) of snow.

Daylight

With an average of 9.3h of daylight, December has the shortest days of the year in Carlstadt.

Sunshine

The average sunshine in Carlstadt 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 in Carlstadt. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 2 in December interpret into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Carlstadt?

In December, in Carlstadt, New Jersey, the average high-temperature is 41.9°F (5.5°C), and the average low-temperature is 31.8°F (-0.1°C).

What are the most humid months in Carlstadt?

Months with the highest humidity are February and December, with an average relative humidity of 77%.

What is the average humidity in December in Carlstadt?

In Carlstadt, New Jersey, the average relative humidity in December is 77%.

How many days does it rain in December in Carlstadt?

In Carlstadt, New Jersey, in December, during 11.6 rainfall days, 3.07" (78mm) of precipitation is typically accumulated.

How much does it snow in Carlstadt in December?

In Carlstadt, during December, snow falls for 3.4 days and regularly aggregates up to 1.18" (30mm) of snow.

What is the month with the shortest days in Carlstadt?

With an average of 9.3h of daylight, December has the shortest days of the year in Carlstadt, New Jersey.

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

In Carlstadt, New Jersey, the average length of the day in December is 9.3h.

How long on average sun shines in December in Carlstadt?

In Carlstadt, New Jersey, the average sunshine in December is 4.9h.

What is the month with the lowest UV index in Carlstadt?

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

What is the UV index intensity in December in Carlstadt?

In December, the average daily maximum UV index in Carlstadt, New Jersey, is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in December - Carlstadt, NJ
  • Average high temperature in December: 41.9°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in December: 31.8°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in December - Carlstadt, NJ
  • Average pressure in December: 30.08"

The month with the highest atmospheric pressure is November (30.1").
The month with the lowest atmospheric pressure is June (29.93").

Average wind speed in December - Carlstadt, NJ
  • Average wind speed in December: 8.5mph

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity in December - Carlstadt, NJ
  • Average humidity in December: 77%

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

Average rainfall in December - Carlstadt, NJ
  • Average rainfall in December: 3.07"

The wettest month (with the highest rainfall) is July (3.15").
The driest month (with the least rainfall) is September (1.77").

Average rainfall days in December - Carlstadt, NJ
  • Average rainfall days in December: 11.6 days

The month with the highest number of rainy days is August (17 days).
The month with the least rainy days is January (8.9 days).

Average snowfall in December - Carlstadt, NJ
  • Average snowfall in December: 1.18"

The month with the highest snowfall is February (2.52").
Months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December - Carlstadt, NJ
  • Average snowfall days in December: 3.4 days

The month with the highest number of snowfall days is February (6.7 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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

The month with the longest days is June (Average daylight: 15.1h).
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: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.7h).

Average sunshine days in December - Carlstadt, NJ
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in December - Carlstadt, 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).

Average cloud cover in December - Carlstadt, NJ
  • Average cloud cover in December: 47

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

Average visibility in December - Carlstadt, 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).