December weather forecast
Stony Creek Mills, PA

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Weather in December

December, the first month of the winter in Stony Creek Mills, is also a wintry month, with an average temperature varying between 30°F (-1.1°C) and 41.4°F (5.2°C).

Temperature

A minor decrease in the average high-temperature is observed during December, shifting from a fresh 50.2°F (10.1°C) in November to an icy 41.4°F (5.2°C). During December, Stony Creek Mills experiences an average low-temperature of 30°F (-1.1°C) at night.

Humidity

The average relative humidity in December is 80%.

Rainfall

In Stony Creek Mills, in December, it is raining for 8.4 days, with typically 0.91" (23mm) of accumulated precipitation. In Stony Creek Mills, during the entire year, the rain falls for 129 days and collects up to 13.5" (343mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. In Stony Creek Mills, Pennsylvania, in December, snow falls for 3.2 days, with typically accumulated 0.39" (10mm) of snow. Throughout the year, there are 19.4 snowfall days, and 4.45" (113mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:07 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:47 pm EST.

Sunshine

In Stony Creek Mills, the average sunshine in December is 4.8h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: A typical high UV index of 2 in December suggests the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

In December, in Stony Creek Mills, the average high-temperature is 41.4°F (5.2°C), and the average low-temperature is 30°F (-1.1°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is calculated to be 86°F (30°C).

What is the average humidity in December?

In December, the average relative humidity is 80%.

How much does it rain in December?

In Stony Creek Mills, in December, during 8.4 rainfall days, 0.91" (23mm) of precipitation is typically accumulated.

How much does it snow in December?

In Stony Creek Mills, during December, snow falls for 3.2 days and regularly aggregates up to 0.39" (10mm) of snow.

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.

What is the average length of the day in December in Stony Creek Mills?

The average day length in December is 9h and 21min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:07 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:47 pm EST.

How many hours of sunshine does Stony Creek Mills have in December?

The average sunshine duration in December is 4.8h.

When is the lowest UV index?

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

What is the UV index intensity in December?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents 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
Stony Creek Mills, PA

Average temperature in December - Stony Creek Mills, PA
  • Average high temperature in December: 41.4°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in December: 30°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in December
Stony Creek Mills, PA

Average pressure in December - Stony Creek Mills, 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 (29.94"Hg).

Average wind speed in December
Stony Creek Mills, PA

Average wind speed in December - Stony Creek Mills, PA
  • Average wind speed in December: 7.8mph

The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in December
Stony Creek Mills, PA

Average humidity in December - Stony Creek Mills, PA
  • Average humidity in December: 80%

The months with the highest relative humidity are February and October (81%).
The month with the lowest relative humidity is April (76%).

Average rainfall in December
Stony Creek Mills, PA

Average rainfall in December - Stony Creek Mills, PA
  • Average rainfall in December: 0.91"

The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is February (0.79").

Average rainfall days in December
Stony Creek Mills, PA

Average rainfall days in December - Stony Creek Mills, PA
  • Average rainfall days in December: 8.4 days

The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (7.1 days).

Average snowfall in December
Stony Creek Mills, PA

Average snowfall in December - Stony Creek Mills, PA
  • Average snowfall in December: 0.39"

The month with the highest snowfall is February (1.54").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Stony Creek Mills, PA

Average snowfall days in December - Stony Creek Mills, PA
  • Average snowfall days in December: 3.2 days

The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Stony Creek Mills, PA

Average daylight in December / Average sunshine in December - Stony Creek Mills, 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: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in December
Stony Creek Mills, PA

Average sunshine days in December - Stony Creek Mills, PA
  • Average sunshine days in December: 19.3 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is May (12.3 days).

Average UV index in December
Stony Creek Mills, PA

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

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

Average cloud cover in December
Stony Creek Mills, PA

Average cloud cover in December - Stony Creek Mills, PA
  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in December
Stony Creek Mills, PA

Average visibility in December - Stony Creek Mills, PA
  • Average visibility in December: 6mi

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

Stony Creek Mills, Pennsylvania, USA

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