December weather forecast
Fayette City, PA

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Weather in December

December, the first month of the winter in Fayette City, is also an icy month, with an average temperature varying between 40.1°F (4.5°C) and 28.8°F (-1.8°C).

Temperature

In Fayette City, the average high-temperature in December drops from a frosty 49.6°F (9.8°C) in November to a wintry 40.1°F (4.5°C). In Fayette City, December nights cool down to an average of 28.8°F (-1.8°C).

Humidity

The average relative humidity in December is 83%.

Rainfall

In Fayette City, in December, during 14 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. Throughout the year, there are 191.3 rainfall days, and 35.24" (895mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Fayette City. In Fayette City, during December, snow falls for 12.6 days and regularly aggregates up to 4.88" (124mm) of snow. Throughout the year, in Fayette City, there are 60.2 snowfall days, and 25.08" (637mm) 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 December, sunrise is at 7:22 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:04 pm EST.

Sunshine

The average sunshine in December is 3.6h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.
Note: In December, the maximum UV index of 1 transforms into these recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Frequently asked questions

How cold does it get in Fayette City in December?

In Fayette City, in December, the average high-temperature is 40.1°F (4.5°C), and the average low-temperature is 28.8°F (-1.8°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, in August is appraised at 87.8°F (31°C).

What is the average humidity in December in Fayette City?

In December, the average relative humidity is 83%.

How many days does it rain in December in Fayette City?

In December, in Fayette City, the rain falls for 14 days. Throughout December, 3.07" (78mm) of precipitation is accumulated.

How much does it snow in Fayette City in December?

In Fayette City, in December, snow falls for 12.6 days, with typically accumulated 4.88" (124mm) of snow.

What is the month with the shortest days in Fayette City?

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

What is the average length of the day in December in Fayette City?

In Fayette City, Pennsylvania, the average day length in December is 9h and 23min.

When are sunrise and sunset in December in Fayette City?

In December, on the first day of the month, sunrise is at 7:22 am and sunset at 4:54 pm. On the last day of the month, in Fayette City, Pennsylvania, sunrise is at 7:41 am and sunset at 5:04 pm EST.

How many hours of sunshine does Fayette City have in December?

In Fayette City, the average sunshine duration in December is 3.6h.

What is the month with the lowest UV index in Fayette City?

The month with the lowest UV index is December, with an average maximum UV index of 1.

What is the UV index reading in December in Fayette City?

The average daily maximum UV index in December in Fayette City, Pennsylvania, is 1. A UV Index of 2, and less, symbolizes a low health threat 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
Fayette City, PA

Average temperature in December - Fayette City, PA
  • Average high temperature in December: 40.1°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in December: 28.8°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

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Average pressure in December
Fayette City, PA

Average pressure in December - Fayette City, 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).

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Average wind speed in December
Fayette City, PA

Average wind speed in December - Fayette City, PA
  • Average wind speed in December: 7.3mph

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

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Average humidity in December
Fayette City, PA

Average humidity in December - Fayette City, PA
  • Average humidity in December: 83%

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (76%).

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Average rainfall in December
Fayette City, PA

Average rainfall in December - Fayette City, PA
  • Average rainfall in December: 3.07"

The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is November (2.13").

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Average rainfall days in December
Fayette City, PA

Average rainfall days in December - Fayette City, PA
  • Average rainfall days in December: 14 days

The month with the highest number of rainy days is May (21.8 days).
The months with the least rainy days are January and February (11.7 days).

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Average snowfall in December
Fayette City, PA

Average snowfall in December - Fayette City, PA
  • Average snowfall in December: 4.88"

The month with the highest snowfall is January (6.26").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Fayette City, PA

Average snowfall days in December - Fayette City, PA
  • Average snowfall days in December: 12.6 days

The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Fayette City, PA

Average daylight in December / Average sunshine in December - Fayette City, 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 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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Average sunshine days in December
Fayette City, PA

Average sunshine days in December - Fayette City, PA
  • Average sunshine days in December: 9.9 days

The month with the most sunshine days is November (14.3 days).
The month with the least sunshine days is January (6.8 days).

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Average UV index in December
Fayette City, PA

Average UV index in December - Fayette City, PA
  • Average UV index in December: 1

The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
Fayette City, PA

Average cloud cover in December - Fayette City, PA
  • Average cloud cover in December: 64

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in December
Fayette City, PA

Average visibility in December - Fayette City, PA
  • Average visibility in December: 5mi

The months with the highest visibility are April, August and November (6mi).
The months with the lowest visibility are January and February (4mi).

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Fayette City, Pennsylvania, USA

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