December weather - Winter 2024

Weather in December
Frequently asked questions
Average temperature in December
Average pressure in December
Average wind speed in December
Average humidity in December
Average rainfall in December
Average rainfall days in December
Average snowfall in December
Average snowfall days in December
Average daylight in December
Average sunshine in December
Average sunshine days in December
Average UV index in December
Average cloud cover in December
Average visibility in December

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

As December begins, there is 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). December witnesses an average nighttime temperature of 25.9°F (-3.4°C).

Humidity

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

Rainfall

In Wilkes-Barre, in December, it is raining for 11.3 days, with typically 0.98" (25mm) of accumulated precipitation. 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 Wilkes-Barre. In Wilkes-Barre, in December, snow falls for 10 days, with typically accumulated 1.93" (49mm) of snow. In Wilkes-Barre, during the entire year, snow falls for 49.9 days and aggregates up to 9.92" (252mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
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 7:29 am and sunset at 4:44 pm EST.

Sunshine

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

UV index

The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index, 1 during December, leads to the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.

Updated: Jun 4, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

The average high-temperature and low-temperature during December are 36.9°F (2.7°C) and 25.9°F (-3.4°C) respectively. In July, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is estimated at 86°F (30°C).

What are the most humid months?

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, the average relative humidity in December is 84%.

How many days does it rain in December?

In Wilkes-Barre, in December, it is raining for 11.3 days, with typically 0.98" (25mm) of accumulated precipitation.

How many days does it snow in December?

In Wilkes-Barre, in December, snow falls for 10 days, with typically accumulated 1.93" (49mm) 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 Wilkes-Barre have in December?

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

When is the sunrise / sunset in December?

In December, on the first day of the month, 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 long on average sun shines in December?

The average sunshine duration in December is 3.9h.

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 reading in December?

In December, the average daily maximum UV index is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

46.2°F 7.9°C

36.9°F 2.7°C

30.6°F -0.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7.8mph 12.6km/h

8.3mph 13.4km/h

8.6mph 13.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

16.9

13.7

14.3

Average UV index

Average cloud cover

48%

60%

Average visibility

5mi 8km

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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

December weather forecast
Wilkes-Barre, PA

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