December weather forecast
Penns Creek, PA

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Weather in December

The first month of the winter, December, is still a cold month in Penns Creek, Pennsylvania, with an average temperature fluctuating between 27.9°F (-2.3°C) and 38.5°F (3.6°C).

Temperature

The average high-temperature drops in December, from November's frosty 47.8°F (8.8°C) to a wintry 38.5°F (3.6°C). The average temperature during December nights is registered at a subzero cold 27.9°F (-2.3°C).

Humidity

In December, the average relative humidity is 81%.

Rainfall

In December, the rain falls for 11.9 days. Throughout December, 2.6" (66mm) of precipitation is accumulated. In Penns Creek, during the entire year, the rain falls for 165.6 days and collects up to 33.54" (852mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In December, it is snowing for 8.2 days. Throughout December, 3.7" (94mm) of snow is accumulated. Throughout the year, there are 43.3 snowfall days, and 23.11" (587mm) of snow is accumulated.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:13 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 4:50 pm EST.

Sunshine

The average sunshine in December is 4.3h.

UV index

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A daily maximum UV index of 2 in December translates into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.

Frequently asked questions

How cold does it get in December?

An average high-temperature, in December, in Penns Creek, is 38.5°F (3.6°C) and the average low-temperature is 27.9°F (-2.3°C). In July, the average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 89.6°F (32°C).

What is the average humidity in December?

The average relative humidity in December is 81%.

How much does it rain in December?

In Penns Creek, in December, during 11.9 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

How much does it snow in December?

In Penns Creek, during December, snow falls for 8.2 days and regularly aggregates up to 3.7" (94mm) of snow.

What is the month with the shortest days?

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

What is the average length of the day in December?

In December, the average day length is 9h and 18min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:13 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 4:50 pm EST.

How many hours of sunshine does Penns Creek have in December?

The average sunshine duration in December is 4.3h.

What are the months with the lowest UV index in Penns Creek?

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

How high is the UV index in December?

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

Average temperature in December - Penns Creek, PA
  • Average high temperature in December: 38.5°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (32°F).

  • Average low temperature in December: 27.9°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).

Average pressure in December
Penns Creek, PA

Average pressure in December - Penns Creek, PA
  • Average pressure in December: 30.1"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
Penns Creek, PA

Average wind speed in December - Penns Creek, PA
  • Average wind speed in December: 6.8mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

Average humidity in December
Penns Creek, PA

Average humidity in December - Penns Creek, PA
  • Average humidity in December: 81%

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are March and April (76%).

Average rainfall in December
Penns Creek, PA

Average rainfall in December - Penns Creek, PA
  • Average rainfall in December: 2.6"

The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is November (2.2").

Average rainfall days in December
Penns Creek, PA

Average rainfall days in December - Penns Creek, PA
  • Average rainfall days in December: 11.9 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (8.9 days).

Average snowfall in December
Penns Creek, PA

Average snowfall in December - Penns Creek, PA
  • Average snowfall in December: 3.7"

The month with the highest snowfall is February (7.52").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Penns Creek, PA

Average snowfall days in December - Penns Creek, PA
  • Average snowfall days in December: 8.2 days

The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Penns Creek, PA

Average daylight in December / Average sunshine in December - Penns Creek, 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: 4h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).

Average sunshine days in December
Penns Creek, PA

Average sunshine days in December - Penns Creek, PA
  • Average sunshine days in December: 13.9 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is February (10.3 days).

Average UV index in December
Penns Creek, PA

Average UV index in December - Penns Creek, PA
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in December
Penns Creek, PA

Average cloud cover in December - Penns Creek, PA
  • Average cloud cover in December: 55

The months with the most cloud cover are January and February (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in December
Penns Creek, PA

Average visibility in December - Penns Creek, PA
  • Average visibility in December: 5mi

The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).

Penns Creek, Pennsylvania, USA

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