December weather forecast
Coalmont, PA

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Weather in December

December, the first month of the winter in Coalmont, is also an icy month, with an average temperature ranging between min 27.3°F (-2.6°C) and max 38.5°F (3.6°C).

Temperature

With the onset of December, Coalmont's average high-temperature adjusts, receding from November's chilly 48°F (8.9°C) to a cold 38.5°F (3.6°C). In Coalmont, the nighttime temperature averages to a subzero cold 27.3°F (-2.6°C) during December.

Humidity

The average relative humidity in December is 81%.

Rainfall

In December, the rain falls for 10.2 days. Throughout December, 1.57" (40mm) of precipitation is accumulated. Throughout the year, there are 146.6 rainfall days, and 19.84" (504mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In Coalmont, in December, snow falls for 6.7 days, with typically accumulated 2.2" (56mm) of snow. Throughout the year, there are 37.4 snowfall days, and 14.61" (371mm) of snow is accumulated.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:16 am and sunset at 4:47 pm. On the last day of December, sunrise is at 7:35 am and sunset at 4:57 pm EST.

Sunshine

In December, the average sunshine in Coalmont 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 of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In December, a daily UV index of 2 turns into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.

Frequently asked questions

Is it cold during December?

In Coalmont, 38.5°F (3.6°C) is the average high-temperature and 27.3°F (-2.6°C) is the average low-temperature during December. In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is estimated at 89.6°F (32°C).

What is the average humidity in December?

The average relative humidity in December is 81%.

How many days does it rain in December?

In Coalmont, in December, it is raining for 10.2 days, with typically 1.57" (40mm) of accumulated precipitation.

How many days does it snow in December?

In Coalmont, in December, snow falls for 6.7 days, with typically accumulated 2.2" (56mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 24min of daylight.

What is the average length of the day in December?

In Coalmont, the average day length in December is 9h and 22min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:16 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 4:57 pm EST.

How many hours of sunshine does Coalmont have in December?

In December, the average sunshine duration is 4.4h.

What are the months with the lowest UV index?

January through March, 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?

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health threat 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
Coalmont, PA

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

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in December: 27.3°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure in December
Coalmont, PA

Average pressure in December - Coalmont, 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
Coalmont, PA

Average wind speed in December - Coalmont, PA
  • Average wind speed in December: 7.6mph

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in December
Coalmont, PA

Average humidity in December - Coalmont, PA
  • Average humidity in December: 81%

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

Average rainfall in December
Coalmont, PA

Average rainfall in December - Coalmont, PA
  • Average rainfall in December: 1.57"

The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is November (1.18").

Average rainfall days in December
Coalmont, PA

Average rainfall days in December - Coalmont, PA
  • Average rainfall days in December: 10.2 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7.5 days).

Average snowfall in December
Coalmont, PA

Average snowfall in December - Coalmont, PA
  • Average snowfall in December: 2.2"

The month with the highest snowfall is February (3.74").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Coalmont, PA

Average snowfall days in December - Coalmont, PA
  • Average snowfall days in December: 6.7 days

The month with the highest number of snowfall days is January (10.9 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
Coalmont, PA

Average daylight in December / Average sunshine in December - Coalmont, 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
Coalmont, PA

Average sunshine days in December - Coalmont, PA
  • Average sunshine days in December: 16.8 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11 days).

Average UV index in December
Coalmont, PA

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

The month with the highest UV index is June (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
Coalmont, PA

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

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

Average visibility in December
Coalmont, PA

Average visibility in December - Coalmont, 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).

Coalmont, Pennsylvania, USA

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