December weather forecast
Clarksburg, PA

Share

Weather in December

The first month of the winter, December, is also an icy month in Clarksburg, Pennsylvania, with temperature in the range of an average high of 38.3°F (3.5°C) and an average low of 27°F (-2.8°C).

Temperature

In Clarksburg, entering December brings a temperature decrement, reducing from November's frosty 47.8°F (8.8°C) to a wintry 38.3°F (3.5°C). Clarksburg registers a consistent average low-temperature of 27°F (-2.8°C) during December.

Humidity

In December, the average relative humidity is 85%.

Rainfall

In Clarksburg, in December, during 12.5 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. Throughout the year, there are 183.4 rainfall days, and 33.5" (851mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Clarksburg, in December, snow falls for 13.5 days, with typically accumulated 6.22" (158mm) of snow. In Clarksburg, during the entire year, snow falls for 64.7 days and aggregates up to 29.06" (738mm) 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 7:22 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:00 pm EST.

Sunshine

The average sunshine in December is 3.3h.

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 vulnerability from unsafe exposure to UV radiation for average individuals.
Note: A maximum high daily UV index of 1 during December translates into the following directions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.

Frequently asked questions

Is it cold in Clarksburg during December?

An average high-temperature, in December, in Clarksburg, is 38.3°F (3.5°C) and the average low-temperature is 27°F (-2.8°C). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in July is evaluated at 87.8°F (31°C).

What is the average humidity in December?

The average relative humidity in December is 85%.

How many days does it rain in December?

In Clarksburg, in December, during 12.5 rainfall days, 3.03" (77mm) of precipitation is typically accumulated.

How many days does it snow in December?

In Clarksburg, in December, snow falls for 13.5 days, with typically accumulated 6.22" (158mm) 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 Clarksburg have in December?

The average day length in December is 9h and 20min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:22 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:00 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration in Clarksburg is 3.3h.

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

Average temperature in December - Clarksburg, PA
  • Average high temperature in December: 38.3°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.4°F).

  • Average low temperature in December: 27°F

The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).

Average pressure in December
Clarksburg, PA

Average pressure in December - Clarksburg, PA
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Clarksburg, PA

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

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in December
Clarksburg, PA

Average humidity in December - Clarksburg, PA
  • Average humidity in December: 85%

The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April and July (77%).

Average rainfall in December
Clarksburg, PA

Average rainfall in December - Clarksburg, PA
  • Average rainfall in December: 3.03"

The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is November (1.97").

Average rainfall days in December
Clarksburg, PA

Average rainfall days in December - Clarksburg, PA
  • Average rainfall days in December: 12.5 days

The month with the highest number of rainy days is May (20.9 days).
The month with the least rainy days is January (10.3 days).

Average snowfall in December
Clarksburg, PA

Average snowfall in December - Clarksburg, PA
  • Average snowfall in December: 6.22"

The month with the highest snowfall is January (7.48").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Clarksburg, PA

Average snowfall days in December - Clarksburg, PA
  • Average snowfall days in December: 13.5 days

The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Clarksburg, 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 2min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

Average sunshine days in December
Clarksburg, PA

Average sunshine days in December - Clarksburg, PA
  • Average sunshine days in December: 8.6 days

The month with the most sunshine days is September (14.2 days).
The month with the least sunshine days is January (6.1 days).

Average UV index in December
Clarksburg, PA

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

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

Average cloud cover in December
Clarksburg, PA

Average cloud cover in December - Clarksburg, PA
  • Average cloud cover in December: 67

The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 37).

Average visibility in December
Clarksburg, PA

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

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).

Clarksburg, Pennsylvania, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location