December weather forecast
Bellwood, PA

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Weather in December

December, the first month of the winter in Bellwood, is still a cold month, with an average temperature varying between 36.9°F (2.7°C) and 26.6°F (-3°C).

Temperature

In Bellwood, the average high-temperature in December drops from a frosty 46.6°F (8.1°C) in November to a wintry 36.9°F (2.7°C). Throughout December, an average low-temperature of 26.6°F (-3°C) is experienced.

Humidity

The average relative humidity in December is 84%.

Rainfall

In Bellwood, in December, during 12.3 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. Throughout the year, there are 165 rainfall days, and 25.31" (643mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Bellwood, in December, during 11.1 snowfall days, 3.5" (89mm) of snow is typically accumulated. In Bellwood, during the entire year, snow falls for 58.4 days and aggregates up to 20.59" (523mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:18 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:56 pm EST.

Sunshine

The average sunshine in December is 3.7h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.
Note: In December, a daily UV index of 1 turns into the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.

Frequently asked questions

How cold is December?

Bellwood in December has an average high-temperature of 36.9°F (2.7°C) and an average low-temperature of 26.6°F (-3°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in July is evaluated at 87.8°F (31°C).

What is the average humidity in December?

In Bellwood, the average relative humidity in December is 84%.

How many days does it rain in December?

In December, the rain falls for 12.3 days. Throughout December, 2.17" (55mm) of precipitation is accumulated.

How much does it snow in December?

In Bellwood, in December, snow falls for 11.1 days, with typically accumulated 3.5" (89mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Bellwood have in December?

In Bellwood, the average day length in December is 9h and 20min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:18 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:56 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 3.7h.

When is the lowest UV index?

With an average maximum UV index of 1, December is the month with the lowest UV index.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to UV radiation.
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
Bellwood, PA

Average temperature in December - Bellwood, PA
  • Average high temperature in December: 36.9°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (31.1°F).

  • Average low temperature in December: 26.6°F

The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).

Average pressure in December
Bellwood, PA

Average pressure in December - Bellwood, PA
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Bellwood, PA

Average wind speed in December - Bellwood, PA
  • Average wind speed in December: 8.5mph

The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in December
Bellwood, PA

Average humidity in December - Bellwood, PA
  • Average humidity in December: 84%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April and July (77%).

Average rainfall in December
Bellwood, PA

Average rainfall in December - Bellwood, PA
  • Average rainfall in December: 2.17"

The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is November (1.57").

Average rainfall days in December
Bellwood, PA

Average rainfall days in December - Bellwood, PA
  • Average rainfall days in December: 12.3 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (9.8 days).

Average snowfall in December
Bellwood, PA

Average snowfall in December - Bellwood, PA
  • Average snowfall in December: 3.5"

The month with the highest snowfall is January (5.28").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Bellwood, PA

Average snowfall days in December - Bellwood, PA
  • Average snowfall days in December: 11.1 days

The month with the highest number of snowfall days is January (15.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Bellwood, PA

Average daylight in December / Average sunshine in December - Bellwood, PA
  • 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 18min).

  • Average sunshine in December: 3h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in December
Bellwood, PA

Average sunshine days in December - Bellwood, PA
  • Average sunshine days in December: 11.7 days

The month with the most sunshine days is November (15.3 days).
The month with the least sunshine days is February (8.6 days).

Average UV index in December
Bellwood, PA

Average UV index in December - Bellwood, PA
  • Average UV index in December: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Bellwood, PA

Average cloud cover in December - Bellwood, PA
  • Average cloud cover in December: 62

The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 37).

Average visibility in December
Bellwood, PA

Average visibility in December - Bellwood, PA
  • Average visibility in December: 5mi

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

Bellwood, Pennsylvania, USA

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