December weather forecast
Claysburg, PA

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Weather in December

The first month of the winter, December, is also an icy month in Claysburg, Pennsylvania, with an average temperature ranging between min 26.8°F (-2.9°C) and max 37.2°F (2.9°C).

Temperature

Claysburg's progression into December includes a drop in the average high-temperature, from a chilly 46.8°F (8.2°C) in November to an icy 37.2°F (2.9°C). An average temperature of 26.8°F (-2.9°C) marks the nights in December.

Humidity

In December, the average relative humidity is 83%.

Rainfall

In Claysburg, in December, during 9.7 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. In Claysburg, during the entire year, the rain falls for 162.4 days and collects up to 30" (762mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Claysburg, in December, during 8.6 snowfall days, 3.7" (94mm) of snow is typically accumulated. In Claysburg, during the entire year, snow falls for 47.1 days and aggregates up to 24.8" (630mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:17 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:57 pm EST.

Sunshine

The average sunshine in December is 3.9h.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In December, a daily UV index of 2 turns into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

Claysburg in December has an average high-temperature of 37.2°F (2.9°C) and an average low-temperature of 26.8°F (-2.9°C). In July, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 84.2°F (29°C).

What is the average humidity in December in Claysburg?

The average relative humidity in December is 83%.

How much does it rain in December?

In Claysburg, during December, the rain falls for 9.7 days and regularly aggregates up to 2.52" (64mm) of precipitation.

How many days does it snow in December?

In December, it is snowing for 8.6 days. Throughout December, 3.7" (94mm) of snow is accumulated.

What is the month with the shortest days?

With an average of 9h and 24min of daylight, December has the shortest days of the year.

How many hours of daylight does Claysburg have in December?

The average day length in December is 9h and 22min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:17 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:57 pm EST.

How many hours of sunshine does Claysburg have in December?

The average sunshine duration in December is 3.9h.

What are the months with the lowest UV index?

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in December?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk 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
Claysburg, PA

Average temperature in December - Claysburg, PA
  • Average high temperature in December: 37.2°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in December: 26.8°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°F).

Average pressure in December
Claysburg, PA

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

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Claysburg, PA

Average wind speed in December - Claysburg, PA
  • Average wind speed in December: 8.8mph

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in December
Claysburg, PA

Average humidity in December - Claysburg, PA
  • Average humidity in December: 83%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is July (77%).

Average rainfall in December
Claysburg, PA

Average rainfall in December - Claysburg, PA
  • Average rainfall in December: 2.52"

The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is November (1.65").

Average rainfall days in December
Claysburg, PA

Average rainfall days in December - Claysburg, PA
  • Average rainfall days in December: 9.7 days

The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is February (7.3 days).

Average snowfall in December
Claysburg, PA

Average snowfall in December - Claysburg, PA
  • Average snowfall in December: 3.7"

The month with the highest snowfall is February (6.18").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Claysburg, PA

Average snowfall days in December - Claysburg, PA
  • Average snowfall days in December: 8.6 days

The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Claysburg, 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 24min).

  • Average sunshine in December: 3h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in December
Claysburg, PA

Average sunshine days in December - Claysburg, PA
  • Average sunshine days in December: 15.2 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is May (9.8 days).

Average UV index in December
Claysburg, PA

Average UV index in December - Claysburg, PA
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in December
Claysburg, PA

Average cloud cover in December - Claysburg, PA
  • Average cloud cover in December: 60

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 37).

Average visibility in December
Claysburg, PA

Average visibility in December - Claysburg, 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).

Claysburg, Pennsylvania, USA

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