December weather forecast
Mossville, PA

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Weather in December

December, the first month of the winter in Mossville, is also a wintry month, with temperature in the range of an average low of 25.7°F (-3.5°C) and an average high of 36°F (2.2°C).

Temperature

A moderate decline in the average high-temperature is seen during December, decreasing from a chilly 45.7°F (7.6°C) in November to a cold 36°F (2.2°C). Mossville records a steady low-temperature average of 25.7°F (-3.5°C) during December.

Humidity

The months with the highest humidity in Mossville are February and December, with an average relative humidity of 84%.

Rainfall

In Mossville, in December, during 10.3 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. Throughout the year, there are 166.2 rainfall days, and 30.83" (783mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In December, it is snowing for 11.1 days. Throughout December, 4.33" (110mm) of snow is accumulated. In Mossville, Pennsylvania, during the entire year, snow falls for 57.9 days and aggregates up to 29.53" (750mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:12 am and sunset at 4:36 pm. On the last day of December, sunrise is at 7:30 am and sunset at 4:46 pm EST.

Sunshine

In Mossville, Pennsylvania, the average sunshine in December is 3.8h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 1 transforms into these recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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Frequently asked questions

How cold is it in Mossville in December?

The average high-temperature and low-temperature in Mossville during December are 36°F (2.2°C) and 25.7°F (-3.5°C) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, in July is computed to be 86°F (30°C).

What are the most humid months in Mossville?

The months with the highest humidity in Mossville are February and December, with an average relative humidity of 84%.

What is the average humidity in December in Mossville?

In Mossville, Pennsylvania, the average relative humidity in December is 84%.

How many days does it rain in December in Mossville?

In December, in Mossville, the rain falls for 10.3 days. Throughout December, 2.17" (55mm) of precipitation is accumulated.

How many days does it snow in December in Mossville?

In Mossville, during December, snow falls for 11.1 days and regularly aggregates up to 4.33" (110mm) of snow.

What is the month with the shortest days in Mossville?

December has the shortest days of the year in Mossville, with an average of 9h and 18min of daylight.

How many hours of daylight does Mossville have in December?

In Mossville, Pennsylvania, the average day length in December is 9h and 16min.

When are sunrise and sunset in December in Mossville?

In December, on the first day of the month, sunrise is at 7:12 am and sunset at 4:36 pm. On the last day of the month, in Mossville, Pennsylvania, sunrise is at 7:30 am and sunset at 4:46 pm EST.

How many hours of sunshine does Mossville have in December?

In Mossville, the average sunshine duration in December is 3.8h.

When is the lowest UV index in Mossville?

The months with the lowest UV index in Mossville are January and December, with an average maximum UV index of 1.

What is the UV index intensity in December in Mossville?

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

Average temperature in December - Mossville, PA
  • Average high temperature in December: 36°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in December: 25.7°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

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Average pressure in December
Mossville, PA

Average pressure in December - Mossville, PA
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in December
Mossville, PA

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

The windiest months (with the highest average wind speed) are March and April (8mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in December
Mossville, PA

Average humidity in December - Mossville, PA
  • Average humidity in December: 84%

The months with the highest relative humidity are February and December (84%).
The months with the lowest relative humidity are April, June and July (78%).

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Average rainfall in December
Mossville, PA

Average rainfall in December - Mossville, PA
  • Average rainfall in December: 2.17"

The wettest month (with the highest rainfall) is July (3.19").
The driest month (with the least rainfall) is January (2.01").

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Average rainfall days in December
Mossville, PA

Average rainfall days in December - Mossville, PA
  • Average rainfall days in December: 10.3 days

The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is January (7.8 days).

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Average snowfall in December
Mossville, PA

Average snowfall in December - Mossville, PA
  • Average snowfall in December: 4.33"

The month with the highest snowfall is February (8.66").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Mossville, PA

Average snowfall days in December - Mossville, PA
  • Average snowfall days in December: 11.1 days

The month with the highest number of snowfall days is January (14.3 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
Mossville, PA

Average daylight in December / Average sunshine in December - Mossville, 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: 3h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).

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Average sunshine days in December
Mossville, PA

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

The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is July (8.8 days).

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Average UV index in December
Mossville, PA

Average UV index in December - Mossville, PA
  • Average UV index in December: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in December
Mossville, PA

Average cloud cover in December - Mossville, PA
  • Average cloud cover in December: 62

The months with the most cloud cover are February and December (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 37).

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Average visibility in December
Mossville, PA

Average visibility in December - Mossville, PA
  • Average visibility in December: 5mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).

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Mossville, Pennsylvania, USA

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