December weather forecast
Luthersburg, PA

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Weather in December

The first month of the winter, December, is also an icy month in Luthersburg, Pennsylvania, with an average temperature varying between 36.1°F (2.3°C) and 25.5°F (-3.6°C).

Temperature

December's arrival comes with a decrease in the average high-temperature, moving from a frosty 45.7°F (7.6°C) in November to a wintry 36.1°F (2.3°C). During the month of December, Luthersburg anticipates a mean low-temperature of 25.5°F (-3.6°C).

Humidity

In December, the average relative humidity in Luthersburg is 86%.

Rainfall

In Luthersburg, in December, it is raining for 12.6 days, with typically 2.95" (75mm) of accumulated precipitation. In Luthersburg, during the entire year, the rain falls for 177 days and collects up to 34.29" (871mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In December, in Luthersburg, it is snowing for 16.5 days. Throughout December, 7.44" (189mm) of snow is accumulated. In Luthersburg, during the entire year, snow falls for 79.7 days and aggregates up to 36.38" (924mm) 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 December, sunrise is at 7:21 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 4:56 pm EST.

Sunshine

In December, the average sunshine is 2.8h.

UV index

The month with the lowest UV index is 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 the ordinary person.
Note: A maximum daily UV index of 1 during December morphs into the following directions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.

Frequently asked questions

How cold is it in December?

During December, Luthersburg experiences an average high-temperature of 36.1°F (2.3°C) and a low-temperature of 25.5°F (-3.6°C).

What is the average humidity in December?

The average relative humidity in December is 86%.

How many days does it rain in December?

In Luthersburg, during December, the rain falls for 12.6 days and regularly aggregates up to 2.95" (75mm) of precipitation.

How much does it snow in December?

In Luthersburg, in December, during 16.5 snowfall days, 7.44" (189mm) 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.

How many hours of daylight does Luthersburg have in December?

In Luthersburg, the average day length in December is 9h and 17min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:21 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 4:56 pm EST.

How many hours of sunshine does Luthersburg have in December?

In December, the average sunshine duration is 2.8h.

When is the lowest UV index?

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

How high is the UV index in December?

In Luthersburg, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a low health risk 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
Luthersburg, PA

Average temperature in December - Luthersburg, PA
  • Average high temperature in December: 36.1°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (30°F).

  • Average low temperature in December: 25.5°F

The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

Average pressure in December
Luthersburg, PA

Average pressure in December - Luthersburg, PA
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Luthersburg, PA

Average wind speed in December - Luthersburg, PA
  • Average wind speed in December: 8.5mph

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in December
Luthersburg, PA

Average humidity in December - Luthersburg, PA
  • Average humidity in December: 86%

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are June, July and August (78%).

Average rainfall in December
Luthersburg, PA

Average rainfall in December - Luthersburg, PA
  • Average rainfall in December: 2.95"

The wettest month (with the highest rainfall) is April (3.7").
The driest month (with the least rainfall) is November (2.17").

Average rainfall days in December
Luthersburg, PA

Average rainfall days in December - Luthersburg, PA
  • Average rainfall days in December: 12.6 days

The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is January (8.9 days).

Average snowfall in December
Luthersburg, PA

Average snowfall in December - Luthersburg, PA
  • Average snowfall in December: 7.44"

The month with the highest snowfall is January (9.25").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Luthersburg, PA

Average snowfall days in December - Luthersburg, PA
  • Average snowfall days in December: 16.5 days

The month with the highest number of snowfall days is January (20.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Luthersburg, 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: 2h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).

Average sunshine days in December
Luthersburg, PA

Average sunshine days in December - Luthersburg, PA
  • Average sunshine days in December: 7.9 days

The month with the most sunshine days is September (13.3 days).
The month with the least sunshine days is February (6.3 days).

Average UV index in December
Luthersburg, PA

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

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

Average cloud cover in December
Luthersburg, PA

Average cloud cover in December - Luthersburg, PA
  • Average cloud cover in December: 72

The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 39).

Average visibility in December
Luthersburg, PA

Average visibility in December - Luthersburg, PA
  • Average visibility in December: 4mi

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February and December (4mi).

Luthersburg, Pennsylvania, USA

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