December weather forecast
Wilkes-Barre, PA

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The cityscape of the scenic Wilkes - Barre, Pennsylvania
The cityscape of the scenic Wilkes - Barre, Pennsylvania

Weather in December

December in Wilkes-Barre marks the arrival of winter with average low and high temperatures dropping to 25.9°F (-3.4°C) and 36.9°F (2.7°C) respectively. The chilling winter weather is reinforced by an increased snowfall of 1.93" (49mm), more than likely resulting in white landscapes towards Christmas. With the onset of winter, daylight hours shrink further, limited to just over 9 hours a day. Adding to the December chill, an average wind speed of 7.6mph (12.2km/h) presents a noticeable change in climate. As the final month, December captures the year-ending winter solstice, transforming Wilkes-Barre into a winter wonderland with twinkling holiday lights amid snowy surrounds.

Temperature

The beginning of December in Wilkes-Barre marks a decrease in the average high-temperature, transitioning from a chilly 46.2°F (7.9°C) in November to a cold 36.9°F (2.7°C). In Wilkes-Barre, an average nighttime temperature of 25.9°F (-3.4°C) is expected during December.

Humidity

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

Rainfall

In Wilkes-Barre, in December, during 11.3 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. In Wilkes-Barre, during the entire year, the rain falls for 142.7 days and collects up to 13.19" (335mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In December, it is snowing for 10 days. Throughout December, 1.93" (49mm) of snow is accumulated. Throughout the year, in Wilkes-Barre, there are 49.9 snowfall days, and 9.92" (252mm) of snow is accumulated.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year in Wilkes-Barre.
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, in Wilkes-Barre, Pennsylvania, sunrise is at 7:29 am and sunset at 4:44 pm EST.

Sunshine

In December, the average sunshine is 3.9h.

UV index

December is the month with the lowest UV index in Wilkes-Barre, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.
Note: A typical high UV index of 1 in December suggests the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

How cold is it in Wilkes-Barre in December?

Wilkes-Barre 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). In July, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is estimated at 86°F (30°C).

What are the most humid months in Wilkes-Barre?

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

What is the average humidity in December in Wilkes-Barre?

In December, the average relative humidity in Wilkes-Barre is 84%.

How much does it rain in Wilkes-Barre in December?

In Wilkes-Barre, during December, the rain falls for 11.3 days and regularly aggregates up to 0.98" (25mm) of precipitation.

How much does it snow in Wilkes-Barre in December?

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

What is the month with the shortest days in Wilkes-Barre?

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 Wilkes-Barre?

The average day length in December in Wilkes-Barre is 9h and 16min.

What time are sunrise and sunset in December in Wilkes-Barre?

On the first day of December in Wilkes-Barre, Pennsylvania, sunrise is at 7:10 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:44 pm EST.

How many hours of sunshine does Wilkes-Barre have in December?

The average sunshine duration in December in Wilkes-Barre, Pennsylvania, is 3.9h.

What is the month with the lowest UV index in Wilkes-Barre?

December is the month with the lowest UV index in Wilkes-Barre, Pennsylvania, with an average maximum UV index of 1.

What is the UV index intensity in December in Wilkes-Barre?

In December, the average daily maximum UV index in Wilkes-Barre, Pennsylvania, is 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's 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
Wilkes-Barre, PA

Average temperature in December - Wilkes-Barre, 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).

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Average pressure in December
Wilkes-Barre, PA

Average pressure in December - Wilkes-Barre, 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).

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Average wind speed in December
Wilkes-Barre, PA

Average wind speed in December - Wilkes-Barre, 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).

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Average humidity in December
Wilkes-Barre, PA

Average humidity in December - Wilkes-Barre, 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%).

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Average rainfall in December
Wilkes-Barre, PA

Average rainfall in December - Wilkes-Barre, 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").

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Average rainfall days in December
Wilkes-Barre, PA

Average rainfall days in December - Wilkes-Barre, 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).

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Average snowfall in December
Wilkes-Barre, PA

Average snowfall in December - Wilkes-Barre, 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").

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Average snowfall days in December
Wilkes-Barre, PA

Average snowfall days in December - Wilkes-Barre, 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).

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Average daylight in December /
Average sunshine in December
Wilkes-Barre, PA

Average daylight in December / Average sunshine in December - Wilkes-Barre, 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: 3h and 5min

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).

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Average sunshine days in December
Wilkes-Barre, PA

Average sunshine days in December - Wilkes-Barre, 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).

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Average UV index in December
Wilkes-Barre, PA

Average UV index in December - Wilkes-Barre, 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).

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Average cloud cover in December
Wilkes-Barre, PA

Average cloud cover in December - Wilkes-Barre, 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).

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Average visibility in December
Wilkes-Barre, PA

Average visibility in December - Wilkes-Barre, 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).

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Wilkes-Barre, Pennsylvania, USA

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