December weather forecastLaurel Run, PA

December

Weather in December

December, the first month of the winter in Laurel Run, is still a cold month, with an average temperature ranging between max 36.9°F (2.7°C) and min 25.9°F (-3.4°C).

Temperature

The shift to December brings a decrease in the average high-temperature, falling from a chilly 46.2°F (7.9°C) in November to a wintry 36.9°F (2.7°C). During the nights in December, an average low-temperature of 25.9°F (-3.4°C) is observed.

Humidity

February and December, with an average relative humidity of 84%, are the most humid months.

Rainfall

In Laurel Run, in December, during 11.3 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. Throughout the year, there are 142.7 rainfall days, and 13.19" (335mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Laurel Run, Pennsylvania, in December, during 10 snowfall days, 1.93" (49mm) of snow is typically accumulated. Throughout the year, there are 49.9 snowfall days, and 9.92" (252mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:10 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:28 am and sunset at 4:44 pm EST.

Sunshine

In Laurel Run, the average sunshine in December is 3.9h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index in Laurel Run. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 1 in December interprets into the following advice:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Laurel Run in December has an average high-temperature of 36.9°F (2.7°C) and an average low-temperature of 25.9°F (-3.4°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in July is calculated to be 86°F (30°C).

February and December, with an average relative humidity of 84%, are most humid months.

In Laurel Run, Pennsylvania, the average relative humidity in December is 84%.

In Laurel Run, in December, during 11.3 rainfall days, 0.98" (25mm) of precipitation is typically accumulated.

In December, it is snowing for 10 days. Throughout December, 1.93" (49mm) of snow is accumulated.

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

In December, the average day length is 9h and 16min.

On the first day of December, sunrise is at 7:10 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:44 pm EST.

In Laurel Run, the average sunshine duration in December is 3.9h.

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

The average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Laurel Run, PA

  • Average high temperature in December: 36.9°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in December: 25.9°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).

Average pressure in December
Laurel Run, PA

  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Laurel Run, PA

  • Average wind speed in December: 7.6mph

The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in December
Laurel Run, PA

  • Average humidity in December: 84%

The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is April (77%).

Average rainfall in December
Laurel Run, PA

  • Average rainfall in December: 0.98"

The wettest month (with the highest rainfall) is July (1.5").
The driest month (with the least rainfall) is September (0.71").

Average rainfall days in December
Laurel Run, PA

  • Average rainfall days in December: 11.3 days

The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in December
Laurel Run, PA

  • Average snowfall in December: 1.93"

The month with the highest snowfall is February (2.83").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Laurel Run, PA

  • Average snowfall days in December: 10 days

The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Laurel Run, PA

  • Average daylight in December: 9h and 18min

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: 3h and 54min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).

Average sunshine days in December
Laurel Run, PA

  • Average sunshine days in December: 13.7 days

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is February (11.6 days).

Average UV index in December
Laurel Run, 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
Laurel Run, PA

  • Average cloud cover in December: 60

The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 36).

Average visibility in December
Laurel Run, 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).