December weather forecast
Rebersburg, PA

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Weather in December

The first month of the winter, December, is still a cold month in Rebersburg, Pennsylvania, with temperature in the range of an average high of 36.9°F (2.7°C) and an average low of 25.9°F (-3.4°C).

Temperature

The decrease of average high-temperatures is mild in December, with a decline from a chilly 46.8°F (8.2°C) in November to a cold 36.9°F (2.7°C). Throughout December, the average low-temperature records at a subzero cold 25.9°F (-3.4°C).

Humidity

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

Rainfall

In December, the rain falls for 10.5 days. Throughout December, 2.48" (63mm) of precipitation is accumulated. Throughout the year, there are 164.5 rainfall days, and 33.11" (841mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Rebersburg, Pennsylvania, during December, snow falls for 8.7 days and regularly aggregates up to 4.41" (112mm) of snow. In Rebersburg, during the entire year, snow falls for 49.1 days and aggregates up to 25.55" (649mm) of snow.

Daylight

The month with the shortest days in Rebersburg is December, with an average of 9h and 18min of daylight.
On the first day of December in Rebersburg, Pennsylvania, sunrise is at 7:15 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:51 pm EST.

Sunshine

In December, the average sunshine is 3.2h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 1 during December translates into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

In Rebersburg, in December, the average high-temperature is 36.9°F (2.7°C), and the average low-temperature is 25.9°F (-3.4°C). In July, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is evaluated at 87.8°F (31°C).

What are the most humid months in Rebersburg?

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 Rebersburg, the average relative humidity in December is 84%.

How many days does it rain in December?

In Rebersburg, in December, during 10.5 rainfall days, 2.48" (63mm) of precipitation is typically accumulated.

How much does it snow in Rebersburg in December?

In December, it is snowing for 8.7 days. Throughout December, 4.41" (112mm) of snow is 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 Rebersburg have in December?

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

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:15 am and sunset at 4:42 pm. On the last day of the month, in Rebersburg, sunrise is at 7:34 am and sunset at 4:51 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration is 3.2h.

What is the month with the lowest UV index?

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

What is the UV index reading in December?

The average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe 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
Rebersburg, PA

Average temperature in December - Rebersburg, PA
  • Average high temperature in December: 36.9°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in December: 25.9°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).

Average pressure in December
Rebersburg, PA

Average pressure in December - Rebersburg, 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
Rebersburg, PA

Average wind speed in December - Rebersburg, PA
  • Average wind speed in December: 6.9mph

The windiest months (with the highest average wind speed) are January and April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in December
Rebersburg, PA

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

The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is July (76%).

Average rainfall in December
Rebersburg, PA

Average rainfall in December - Rebersburg, PA
  • Average rainfall in December: 2.48"

The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is November (2.01").

Average rainfall days in December
Rebersburg, PA

Average rainfall days in December - Rebersburg, PA
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is February (7.3 days).

Average snowfall in December
Rebersburg, PA

Average snowfall in December - Rebersburg, PA
  • Average snowfall in December: 4.41"

The month with the highest snowfall is February (7.4").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Rebersburg, PA

Average snowfall days in December - Rebersburg, PA
  • Average snowfall days in December: 8.7 days

The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Rebersburg, 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 1min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days in December
Rebersburg, PA

Average sunshine days in December - Rebersburg, PA
  • Average sunshine days in December: 15.3 days

The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is May (9.3 days).

Average UV index in December
Rebersburg, PA

Average UV index in December - Rebersburg, 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
Rebersburg, PA

Average cloud cover in December - Rebersburg, PA
  • Average cloud cover in December: 65

The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is July (Cloud cover 39).

Average visibility in December
Rebersburg, PA

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

The months with the highest visibility are January, March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are February and September (4mi).

Rebersburg, Pennsylvania, USA

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