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 an average temperature fluctuating between 25.7°F (-3.5°C) and 36°F (2.2°C).

Temperature

Mossville's December weather shows a moderate shift in high-temperatures, falling from November's chilly 45.7°F (7.6°C) to a wintry 36°F (2.2°C). The month of December records an average low-temperature of 25.7°F (-3.5°C).

Humidity

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

Rainfall

In Mossville, in December, it is raining for 10.3 days, with typically 2.17" (55mm) of accumulated precipitation. 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 Mossville, Pennsylvania, in December, snow falls for 11.1 days, with typically accumulated 4.33" (110mm) of snow. In Mossville, during the entire year, snow falls for 57.9 days and aggregates up to 29.53" (750mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
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, the average sunshine in December is 3.8h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: During December, 1 as the daily maximum UV index converts into the following advice:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

The high-temperature during December is 36°F (2.2°C) and the low-temperature is 25.7°F (-3.5°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in July is appraised at 86°F (30°C).

What is the most humid month?

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

What is the average humidity in December?

In December, the average relative humidity is 84%.

How much does it rain in December?

In Mossville, during December, the rain falls for 10.3 days and regularly aggregates up to 2.17" (55mm) of precipitation.

How much does it snow in December?

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?

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

How many hours of daylight does Mossville have in December?

The average day length in December is 9h and 16min.

What time are sunrise and sunset in December?

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

How long on average sun shines in December?

In December, the average sunshine duration is 3.8h.

What is the month with the lowest UV index?

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

What is the UV index intensity in December?

The average daily maximum UV index in December is 1. A UV Index value 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
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Mossville, Pennsylvania, USA

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