December weather forecast
Mohrsville, PA

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Weather in December

The first month of the winter, December, is still a cold month in Mohrsville, Pennsylvania, with an average temperature ranging between max 40.1°F (4.5°C) and min 28.6°F (-1.9°C).

Temperature

The average high-temperature drops in December, from November's chilly 49.5°F (9.7°C) to a wintry 40.1°F (4.5°C). Mohrsville experiences an average temperature drop to a freezing cold 28.6°F (-1.9°C) during December nights.

Humidity

In December, the average relative humidity in Mohrsville is 81%.

Rainfall

In Mohrsville, during December, the rain falls for 10.8 days and regularly aggregates up to 2.01" (51mm) of precipitation. Throughout the year, there are 148.7 rainfall days, and 26.42" (671mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Mohrsville. In Mohrsville, during December, snow falls for 4.5 days and regularly aggregates up to 1.38" (35mm) of snow. In Mohrsville, during the entire year, snow falls for 26.2 days and aggregates up to 13.58" (345mm) 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 7:08 am and sunset at 4:37 pm. On the last day of December, sunrise is at 7:27 am and sunset at 4:47 pm EST.

Sunshine

In Mohrsville, the average sunshine in December is 4.6h.

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 vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

During December, Mohrsville experiences an average high-temperature of 40.1°F (4.5°C) and a low-temperature of 28.6°F (-1.9°C). In July, the average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 89.6°F (32°C).

What is the average humidity in December?

In December, the average relative humidity is 81%.

How much does it rain in December?

In Mohrsville, in December, it is raining for 10.8 days, with typically 2.01" (51mm) of accumulated precipitation.

How much does it snow in December?

In Mohrsville, Pennsylvania, in December, during 4.5 snowfall days, 1.38" (35mm) of snow is typically accumulated.

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.

What is the average length of the day in December?

In December, the average day length is 9h and 20min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:08 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:47 pm EST.

How long on average sun shines in December?

In Mohrsville, the average sunshine duration in December is 4.6h.

What is the month with the lowest UV index?

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 value of 2, and less, symbolizes a minimal health vulnerability from 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
Mohrsville, PA

Average temperature in December - Mohrsville, PA
  • Average high temperature in December: 40.1°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 (33.6°F).

  • Average low temperature in December: 28.6°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in December
Mohrsville, PA

Average pressure in December - Mohrsville, PA
  • Average pressure in December: 30.09"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
Mohrsville, PA

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

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

Average humidity in December
Mohrsville, PA

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

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

Average rainfall in December
Mohrsville, PA

Average rainfall in December - Mohrsville, PA
  • Average rainfall in December: 2.01"

The wettest month (with the highest rainfall) is August (2.87").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in December
Mohrsville, PA

Average rainfall days in December - Mohrsville, PA
  • Average rainfall days in December: 10.8 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (7.7 days).

Average snowfall in December
Mohrsville, PA

Average snowfall in December - Mohrsville, PA
  • Average snowfall in December: 1.38"

The month with the highest snowfall is March (3.86").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Mohrsville, PA

Average snowfall days in December - Mohrsville, PA
  • Average snowfall days in December: 4.5 days

The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Mohrsville, 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 18min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

Average sunshine days in December
Mohrsville, PA

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

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in December
Mohrsville, PA

Average UV index in December - Mohrsville, 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
Mohrsville, PA

Average cloud cover in December - Mohrsville, PA
  • Average cloud cover in December: 51

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in December
Mohrsville, PA

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

The months with the highest visibility are January, March, April, June, July and November (6mi).
The months with the lowest visibility are February, May, August, September, October and December (5mi).

Mohrsville, Pennsylvania, USA

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