December weather forecast
Frackville, PA

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Weather in December

December, the first month of the winter in Frackville, is also a wintry month, with temperature in the range of an average low of 27.5°F (-2.5°C) and an average high of 37.9°F (3.3°C).

Temperature

A shift in Frackville's weather is observed as November turns into December, with the average high temperature reducing from a chilly 47.5°F (8.6°C) to a cold 37.9°F (3.3°C). Frackville's temperature in December lowers to a consistent average of 27.5°F (-2.5°C) during the nights.

Humidity

In Frackville, the average relative humidity in December is 82%.

Rainfall

In Frackville, in December, during 12.8 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. In Frackville, during the entire year, the rain falls for 169.3 days and collects up to 33.58" (853mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In December, it is snowing for 8.5 days. Throughout December, 4.06" (103mm) of snow is accumulated. Throughout the year, there are 48.3 snowfall days, and 27.56" (700mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:10 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:47 pm EST.

Sunshine

The average sunshine in December is 4.4h.

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 estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.
Note: The daily maximum UV index of 2 in December interprets into the following advice:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. 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?

The high-temperature during December is 37.9°F (3.3°C) and the low-temperature is 27.5°F (-2.5°C). In July, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is estimated at 86°F (30°C).

What is the average humidity in December?

In Frackville, the average relative humidity in December is 82%.

How many days does it rain in December?

In Frackville, in December, during 12.8 rainfall days, 2.8" (71mm) of precipitation is typically accumulated.

How many days does it snow in December?

In Frackville, during December, snow falls for 8.5 days and regularly aggregates up to 4.06" (103mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 18min of daylight.

How many hours of daylight does Frackville have in December?

In December, the average day length is 9h and 19min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:10 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:47 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration is 4.4h.

When is the lowest UV index in Frackville?

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?

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Frackville, PA

Average temperature in December - Frackville, PA
  • Average high temperature in December: 37.9°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.6°F).

  • Average low temperature in December: 27.5°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in December
Frackville, PA

Average pressure in December - Frackville, 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
Frackville, PA

Average wind speed in December - Frackville, PA
  • Average wind speed in December: 7.7mph

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

Average humidity in December
Frackville, PA

Average humidity in December - Frackville, PA
  • Average humidity in December: 82%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).

Average rainfall in December
Frackville, PA

Average rainfall in December - Frackville, PA
  • Average rainfall in December: 2.8"

The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is September (2.09").

Average rainfall days in December
Frackville, PA

Average rainfall days in December - Frackville, PA
  • Average rainfall days in December: 12.8 days

The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is January (9.9 days).

Average snowfall in December
Frackville, PA

Average snowfall in December - Frackville, PA
  • Average snowfall in December: 4.06"

The month with the highest snowfall is January (6.93").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Frackville, PA

Average snowfall days in December - Frackville, PA
  • Average snowfall days in December: 8.5 days

The month with the highest number of snowfall days is February (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Frackville, 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 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 18min).

Average sunshine days in December
Frackville, PA

Average sunshine days in December - Frackville, PA
  • Average sunshine days in December: 13.7 days

The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is May (9.7 days).

Average UV index in December
Frackville, PA

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

The month with the highest UV index is 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
Frackville, PA

Average cloud cover in December - Frackville, PA
  • Average cloud cover in December: 54

The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in December
Frackville, PA

Average visibility in December - Frackville, 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).

Frackville, Pennsylvania, USA

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