December weather forecast
Loysville, PA

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Weather in December

The first month of the winter, December, is also an icy month in Loysville, Pennsylvania, with an average temperature varying between 39.7°F (4.3°C) and 28.6°F (-1.9°C).

Temperature

The average high-temperature drops in December, from November's frosty 49.5°F (9.7°C) to a cold 39.7°F (4.3°C). Loysville's average low-temperature in the month of December is recorded at a subzero cold 28.6°F (-1.9°C).

Humidity

In December, the average relative humidity in Loysville, Pennsylvania, is 80%.

Rainfall

In Loysville, during December, the rain falls for 10.6 days and regularly aggregates up to 2.13" (54mm) of precipitation. Throughout the year, there are 157.4 rainfall days, and 28.46" (723mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Loysville, during December, snow falls for 6 days and regularly aggregates up to 1.73" (44mm) of snow. In Loysville, during the entire year, snow falls for 32.9 days and aggregates up to 13.94" (354mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:13 am and sunset at 4:43 pm. On the last day of December, sunrise is at 7:32 am and sunset at 4:53 pm EST.

Sunshine

The average sunshine in December is 4.3h.

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 reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: A daily maximum UV index of 2 in December translates into the following instructions:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Updated: Jun 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold does it get in December?

The high-temperature in Loysville during December is 39.7°F (4.3°C) and the low-temperature is 28.6°F (-1.9°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in August is computed to be 87.8°F (31°C).

What is the average humidity in December?

In December, the average relative humidity is 80%.

How much does it rain in December?

In Loysville, in December, it is raining for 10.6 days, with typically 2.13" (54mm) of accumulated precipitation.

How much does it snow in December?

In Loysville, in December, during 6 snowfall days, 1.73" (44mm) of snow is typically accumulated.

What is the month with the shortest days?

With an average of 9h and 24min of daylight, December has the shortest days of the year in Loysville.

How many hours of daylight does Loysville have in December?

In December, the average day length is 9h and 21min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:13 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 4:53 pm EST.

How many hours of sunshine does Loysville have in December?

In December, the average sunshine duration in Loysville is 4.3h.

What is the month with the lowest UV index?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in December?

In Loysville, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Loysville, PA

Average temperature in December - Loysville, PA
  • Average high temperature in December: 39.7°F

The warmest month (with the highest average high temperature) is July (83.8°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 (62.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in December
Loysville, PA

Average pressure in December - Loysville, 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
Loysville, PA

Average wind speed in December - Loysville, PA
  • Average wind speed in December: 7mph

The windiest months (with the highest average wind speed) are March and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in December
Loysville, PA

Average humidity in December - Loysville, PA
  • Average humidity in December: 80%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (75%).

Average rainfall in December
Loysville, PA

Average rainfall in December - Loysville, PA
  • Average rainfall in December: 2.13"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is February (2.01").

Average rainfall days in December
Loysville, PA

Average rainfall days in December - Loysville, PA
  • Average rainfall days in December: 10.6 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in December
Loysville, PA

Average snowfall in December - Loysville, PA
  • Average snowfall in December: 1.73"

The month with the highest snowfall is February (3.94").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Loysville, PA

Average snowfall days in December - Loysville, PA
  • Average snowfall days in December: 6 days

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Loysville, 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: 4h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 4h and 12min).

Average sunshine days in December
Loysville, PA

Average sunshine days in December - Loysville, PA
  • Average sunshine days in December: 15.1 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in December
Loysville, PA

Average UV index in December - Loysville, PA
  • Average UV index in December: 2

The months with the highest UV index are May, June and July (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
Loysville, PA

Average cloud cover in December - Loysville, PA
  • Average cloud cover in December: 54

The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in December
Loysville, PA

Average visibility in December - Loysville, PA
  • Average visibility in December: 6mi

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

Loysville, Pennsylvania, USA

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