December weather forecast
Rogersville, PA

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Weather in December

December, the first month of the winter in Rogersville, is still a cold month, with an average temperature fluctuating between 40.6°F (4.8°C) and 28.9°F (-1.7°C).

Temperature

The onset of December comes with a shift in the average high-temperature, falling from a fresh 50.2°F (10.1°C) in November to an icy 40.6°F (4.8°C). December brings Rogersville a consistent average low-temperature of 28.9°F (-1.7°C).

Humidity

In December, the average relative humidity is 83%.

Rainfall

In Rogersville, in December, during 12.9 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. Throughout the year, there are 183 rainfall days, and 30.91" (785mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Rogersville, in December, during 11.9 snowfall days, 3.98" (101mm) of snow is typically accumulated. Throughout the year, there are 56.4 snowfall days, and 20.35" (517mm) 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 the month, sunrise is at 7:24 am and sunset at 4:56 pm. On the last day of December, sunrise is at 7:42 am and sunset at 5:06 pm EST.

Sunshine

In December, the average sunshine is 3.7h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.

Frequently asked questions

Is it cold during December?

The high-temperature, in December, in Rogersville, is 40.6°F (4.8°C), while the low-temperature averages to 28.9°F (-1.7°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 87.8°F (31°C).

What is the average humidity in December?

In December, the average relative humidity is 83%.

How many days does it rain in December?

In Rogersville, in December, during 12.9 rainfall days, 2.52" (64mm) of precipitation is typically accumulated.

How much does it snow in December?

In December, it is snowing for 11.9 days. Throughout December, 3.98" (101mm) of snow is accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

What is the average length of the day in December?

The average day length in December is 9h and 24min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:24 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:06 pm EST.

How many hours of sunshine does Rogersville have in December?

The average sunshine duration in December is 3.7h.

What is the month with the lowest UV index?

January, February, November and 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 minimal hazard to health 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
Rogersville, PA

Average temperature in December - Rogersville, PA
  • Average high temperature in December: 40.6°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (34.3°F).

  • Average low temperature in December: 28.9°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in December
Rogersville, PA

Average pressure in December - Rogersville, 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
Rogersville, PA

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

The windiest month (with the highest average wind speed) is January (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in December
Rogersville, PA

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

The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are April, July and August (77%).

Average rainfall in December
Rogersville, PA

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

The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is November (1.77").

Average rainfall days in December
Rogersville, PA

Average rainfall days in December - Rogersville, PA
  • Average rainfall days in December: 12.9 days

The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is February (10.6 days).

Average snowfall in December
Rogersville, PA

Average snowfall in December - Rogersville, PA
  • Average snowfall in December: 3.98"

The month with the highest snowfall is February (5.35").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Rogersville, PA

Average snowfall days in December - Rogersville, PA
  • Average snowfall days in December: 11.9 days

The month with the highest number of snowfall days is January (16.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Rogersville, 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 4min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days in December
Rogersville, PA

Average sunshine days in December - Rogersville, PA
  • Average sunshine days in December: 10.6 days

The month with the most sunshine days is November (15.7 days).
The month with the least sunshine days is February (7.5 days).

Average UV index in December
Rogersville, PA

Average UV index in December - Rogersville, 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, November and December (UV index 2).

Average cloud cover in December
Rogersville, PA

Average cloud cover in December - Rogersville, PA
  • Average cloud cover in December: 63

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in December
Rogersville, PA

Average visibility in December - Rogersville, 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).

Rogersville, Pennsylvania, USA

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