December weather forecast
Blue Mountain Pines, PA

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Weather in December

December, the first month of the winter in Blue Mountain Pines, is still a cold month, with temperature in the range of an average high of 39°F (3.9°C) and an average low of 27.5°F (-2.5°C).

Temperature

The onset of December entails a temperature shift, as the average high-temperature decreases from a frosty 48.4°F (9.1°C) in November to a wintry 39°F (3.9°C). Blue Mountain Pines experiences an average nighttime temperature of 27.5°F (-2.5°C) in the month of December.

Humidity

The average relative humidity in December is 81%.

Rainfall

In December, the rain falls for 9.4 days. Throughout December, 1.73" (44mm) of precipitation is accumulated. Throughout the year, there are 139.9 rainfall days, and 19.88" (505mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Blue Mountain Pines, during December, snow falls for 4.1 days and regularly aggregates up to 2.32" (59mm) of snow. Throughout the year, in Blue Mountain Pines, there are 24.7 snowfall days, and 10.94" (278mm) 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 December, sunrise is at 7:06 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:43 pm EST.

Sunshine

In December, the average sunshine is 4.7h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

In Blue Mountain Pines, in December, the average high-temperature is 39°F (3.9°C), and the average low-temperature is 27.5°F (-2.5°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in July is computed to be 89.6°F (32°C).

What is the average humidity in December?

In December, the average relative humidity is 81%.

How many days does it rain in December?

In Blue Mountain Pines, in December, it is raining for 9.4 days, with typically 1.73" (44mm) of accumulated precipitation.

How many days does it snow in December in Blue Mountain Pines?

In Blue Mountain Pines, during December, snow falls for 4.1 days and regularly aggregates up to 2.32" (59mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 18min of daylight.

What is the average length of the day in December?

In December, the average day length in Blue Mountain Pines is 9h and 18min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:06 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:43 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration is 4.7h.

What is the month with 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 Blue Mountain Pines?

The average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a low health threat 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
Blue Mountain Pines, PA

Average temperature in December - Blue Mountain Pines, PA
  • Average high temperature in December: 39°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in December: 27.5°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

Average pressure in December
Blue Mountain Pines, PA

Average pressure in December - Blue Mountain Pines, PA
  • 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
Blue Mountain Pines, PA

Average wind speed in December - Blue Mountain Pines, PA
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in December
Blue Mountain Pines, PA

Average humidity in December - Blue Mountain Pines, PA
  • Average humidity in December: 81%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (76%).

Average rainfall in December
Blue Mountain Pines, PA

Average rainfall in December - Blue Mountain Pines, PA
  • Average rainfall in December: 1.73"

The wettest month (with the highest rainfall) is July (2.32").
The driest month (with the least rainfall) is September (1.02").

Average rainfall days in December
Blue Mountain Pines, PA

Average rainfall days in December - Blue Mountain Pines, PA
  • Average rainfall days in December: 9.4 days

The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in December
Blue Mountain Pines, PA

Average snowfall in December - Blue Mountain Pines, PA
  • Average snowfall in December: 2.32"

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

Average snowfall days in December
Blue Mountain Pines, PA

Average snowfall days in December - Blue Mountain Pines, PA
  • Average snowfall days in December: 4.1 days

The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Blue Mountain Pines, PA

Average daylight in December / Average sunshine in December - Blue Mountain Pines, PA
  • 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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in December
Blue Mountain Pines, PA

Average sunshine days in December - Blue Mountain Pines, PA
  • Average sunshine days in December: 17.9 days

The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is July (13 days).

Average UV index in December
Blue Mountain Pines, PA

Average UV index in December - Blue Mountain Pines, PA
  • Average UV index in December: 1

The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Blue Mountain Pines, PA

Average cloud cover in December - Blue Mountain Pines, PA
  • Average cloud cover in December: 50

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in December
Blue Mountain Pines, PA

Average visibility in December - Blue Mountain Pines, 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).

Blue Mountain Pines, Pennsylvania, USA

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