December weather forecast
Elwood, NJ

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Weather in December

December, the first month of the winter in Elwood, is also a frosty month, with an average temperature varying between 34.2°F (1.2°C) and 45.5°F (7.5°C).

Temperature

The arrival of December correlates with a minor temperature reduction, down from November's cool 53.6°F (12°C) to a frosty 45.5°F (7.5°C). In Elwood, an average low-temperature of 34.2°F (1.2°C) is recorded during December nights.

Humidity

In December, the average relative humidity in Elwood is 77%.

Rainfall

In Elwood, in December, during 7.7 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. Throughout the year, there are 115 rainfall days, and 12.44" (316mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, May, November and December. In Elwood, in December, during 2.3 snowfall days, 0.24" (6mm) of snow is typically accumulated. In Elwood, during the entire year, snow falls for 11.9 days and aggregates up to 2.99" (76mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:00 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:45 pm EST.

Sunshine

In Elwood, 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 value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the ordinary person.
Note: During December, 2 as the daily maximum UV index converts into the following advice:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are December temperatures?

The high-temperature, in December, in Elwood, records 45.5°F (7.5°C), while the low-temperature is 34.2°F (1.2°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is appraised at 89.6°F (32°C).

What is the average humidity in December?

In Elwood, the average relative humidity in December is 77%.

How many days does it rain in December in Elwood?

In Elwood, in December, it is raining for 7.7 days, with typically 1.26" (32mm) of accumulated precipitation.

How much does it snow in Elwood in December?

In Elwood, in December, snow falls for 2.3 days, with typically accumulated 0.24" (6mm) of snow.

What is the month with the shortest days?

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

What is the average length of the day in December?

The average day length in December is 9h and 26min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:00 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:45 pm EST.

How long on average sun shines in December?

In Elwood, the average sunshine duration in December is 5.1h.

When is the lowest UV index?

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

How high is the UV index in December?

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health risk 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
Elwood, NJ

Average temperature in December - Elwood, NJ
  • Average high temperature in December: 45.5°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 (39°F).

  • Average low temperature in December: 34.2°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).

Average pressure in December
Elwood, NJ

Average pressure in December - Elwood, 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 (29.94"Hg).

Average wind speed in December
Elwood, NJ

Average wind speed in December - Elwood, NJ
  • Average wind speed in December: 8.3mph

The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in December
Elwood, NJ

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

The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is April (72%).

Average rainfall in December
Elwood, NJ

Average rainfall in December - Elwood, NJ
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is July (1.54").
The driest month (with the least rainfall) is January (0.67").

Average rainfall days in December
Elwood, NJ

Average rainfall days in December - Elwood, NJ
  • Average rainfall days in December: 7.7 days

The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is November (6.7 days).

Average snowfall in December
Elwood, NJ

Average snowfall in December - Elwood, NJ
  • Average snowfall in December: 0.24"

The month with the highest snowfall is January (1.06").
The months with the least snowfall are April, June, July, August, September and October (0").

Average snowfall days in December
Elwood, NJ

Average snowfall days in December - Elwood, NJ
  • Average snowfall days in December: 2.3 days

The month with the highest number of snowfall days is January (3.7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Elwood, NJ
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
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 42min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in December
Elwood, NJ

Average sunshine days in December - Elwood, NJ
  • Average sunshine days in December: 21.6 days

The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is July (14.3 days).

Average UV index in December
Elwood, NJ

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

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

Average cloud cover in December
Elwood, NJ

Average cloud cover in December - Elwood, NJ
  • Average cloud cover in December: 45

The months with the most cloud cover are February and March (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 29).

Average visibility in December
Elwood, NJ

Average visibility in December - Elwood, 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).

Elwood, New Jersey, USA

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