December weather forecast
Spring Run, PA

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Weather in December

December, the first month of the winter in Spring Run, is still a cold month, with an average temperature ranging between min 27.5°F (-2.5°C) and max 38.8°F (3.8°C).

Temperature

Spring Run's progression into December includes a drop in the average high-temperature, from a frosty 48.4°F (9.1°C) in November to a cold 38.8°F (3.8°C). Spring Run throughout December, records an average low-temperature of 27.5°F (-2.5°C).

Humidity

The average relative humidity in December is 81%.

Rainfall

In Spring Run, during December, the rain falls for 10.9 days and regularly aggregates up to 2.36" (60mm) of precipitation. Throughout the year, in Spring Run, there are 164.3 rainfall days, and 28.19" (716mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In December, it is snowing for 7.7 days. Throughout December, 2.56" (65mm) of snow is accumulated. Throughout the year, there are 40.6 snowfall days, and 17.91" (455mm) 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 7:14 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 4:55 pm EST.

Sunshine

In Spring Run, the average sunshine in December is 4.3h.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Spring Run. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold during December?

The high-temperature, in December, in Spring Run, records 38.8°F (3.8°C), while the low-temperature is 27.5°F (-2.5°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, is appraised at 86°F (30°C).

What is the average humidity in December?

In Spring Run, the average relative humidity in December is 81%.

How many days does it rain in December?

In Spring Run, during December, the rain falls for 10.9 days and regularly aggregates up to 2.36" (60mm) of precipitation.

How many days does it snow in December?

In Spring Run, in December, during 7.7 snowfall days, 2.56" (65mm) of snow is typically 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 Spring Run have in December?

In Spring Run, Pennsylvania, the average day length in December is 9h and 22min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:14 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 4:55 pm EST.

How long on average sun shines in December?

In Spring Run, the average sunshine duration in December is 4.3h.

What are the months with the lowest UV index?

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

What is the UV index intensity in December?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health risk 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
Spring Run, PA

Average temperature in December - Spring Run, PA
  • Average high temperature in December: 38.8°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (32.9°F).

  • Average low temperature in December: 27.5°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure in December
Spring Run, PA

Average pressure in December - Spring Run, 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
Spring Run, PA

Average wind speed in December - Spring Run, PA
  • Average wind speed in December: 7.1mph

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in December
Spring Run, PA

Average humidity in December - Spring Run, PA
  • Average humidity in December: 81%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is July (75%).

Average rainfall in December
Spring Run, PA

Average rainfall in December - Spring Run, PA
  • Average rainfall in December: 2.36"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in December
Spring Run, PA

Average rainfall days in December - Spring Run, PA
  • Average rainfall days in December: 10.9 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (9.5 days).

Average snowfall in December
Spring Run, PA

Average snowfall in December - Spring Run, PA
  • Average snowfall in December: 2.56"

The month with the highest snowfall is January (5.24").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Spring Run, PA

Average snowfall days in December - Spring Run, PA
  • Average snowfall days in December: 7.7 days

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

Average daylight in December /
Average sunshine in December
Spring Run, PA

Average daylight in December / Average sunshine in December - Spring Run, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in December
Spring Run, PA

Average sunshine days in December - Spring Run, PA
  • Average sunshine days in December: 14.2 days

The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is May (10.7 days).

Average UV index in December
Spring Run, PA

Average UV index in December - Spring Run, PA
  • Average UV index in December: 2

The months with the highest UV index are May and June (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
Spring Run, PA

Average cloud cover in December - Spring Run, PA
  • Average cloud cover in December: 55

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 34).

Average visibility in December
Spring Run, PA

Average visibility in December - Spring Run, 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).

Spring Run, Pennsylvania, USA

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