December weather forecast
Fredericksburg, PA

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Weather in December

December, the first month of the winter in Fredericksburg, is still a cold month, with temperature in the range of an average low of 29.3°F (-1.5°C) and an average high of 40.3°F (4.6°C).

Temperature

The commencement of December involves a temperature shift, with the average high-temperature dropping from a frosty 49.5°F (9.7°C) in November to an icy 40.3°F (4.6°C). An average nighttime temperature of 29.3°F (-1.5°C) is noted during the month of December.

Humidity

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

Rainfall

In December, the rain falls for 9.2 days. Throughout December, 1.1" (28mm) of precipitation is accumulated. In Fredericksburg, during the entire year, the rain falls for 137.4 days and collects up to 16.26" (413mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Fredericksburg, in December, snow falls for 3.3 days, with typically accumulated 0.98" (25mm) of snow. In Fredericksburg, during the entire year, snow falls for 19.5 days and aggregates up to 6.69" (170mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of December in Fredericksburg, sunrise is at 7:10 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:49 pm EST.

Sunshine

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

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: An average maximum UV index of 2 in December leads to these recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
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Frequently asked questions

Is it cold in Fredericksburg during December?

The average high-temperature and low-temperature in Fredericksburg, Pennsylvania, during December are 40.3°F (4.6°C) and 29.3°F (-1.5°C) respectively. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in July is estimated at 87.8°F (31°C).

What is the average humidity in December in Fredericksburg?

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

How many days does it rain in December in Fredericksburg?

In Fredericksburg, Pennsylvania, in December, during 9.2 rainfall days, 1.1" (28mm) of precipitation is typically accumulated.

How many days does it snow in December in Fredericksburg?

In December, in Fredericksburg, Pennsylvania, it is snowing for 3.3 days. Throughout December, 0.98" (25mm) of snow is accumulated.

What is the month with the shortest days in Fredericksburg?

The month with the shortest days in Fredericksburg, Pennsylvania, is December, with an average of 9h and 18min of daylight.

How many hours of daylight does Fredericksburg have in December?

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

When is the sunrise / sunset in December in Fredericksburg?

On the first day of December in Fredericksburg, sunrise is at 7:10 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:49 pm EST.

How long on average sun shines in December in Fredericksburg?

In December, the average sunshine duration is 4.6h.

When is the lowest UV index in Fredericksburg?

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

What is the UV index reading in December in Fredericksburg?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Fredericksburg, PA

Average temperature in December - Fredericksburg, PA
  • Average high temperature in December: 40.3°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.8°F).

  • Average low temperature in December: 29.3°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in December
Fredericksburg, PA

Average pressure in December - Fredericksburg, 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 (29.94"Hg).

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Average wind speed in December
Fredericksburg, PA

Average wind speed in December - Fredericksburg, PA
  • Average wind speed in December: 8mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in December
Fredericksburg, PA

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

The months with the highest relative humidity are February, May and October (81%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in December
Fredericksburg, PA

Average rainfall in December - Fredericksburg, PA
  • Average rainfall in December: 1.1"

The wettest month (with the highest rainfall) is August (2.13").
The driest month (with the least rainfall) is February (0.94").

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Average rainfall days in December
Fredericksburg, PA

Average rainfall days in December - Fredericksburg, PA
  • Average rainfall days in December: 9.2 days

The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (6.7 days).

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Average snowfall in December
Fredericksburg, PA

Average snowfall in December - Fredericksburg, PA
  • Average snowfall in December: 0.98"

The month with the highest snowfall is January (1.97").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Fredericksburg, PA

Average snowfall days in December - Fredericksburg, PA
  • Average snowfall days in December: 3.3 days

The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Fredericksburg, 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 30min).

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Average sunshine days in December
Fredericksburg, PA

Average sunshine days in December - Fredericksburg, PA
  • Average sunshine days in December: 18.7 days

The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is May (11.5 days).

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Average UV index in December
Fredericksburg, PA

Average UV index in December - Fredericksburg, 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).

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Average cloud cover in December
Fredericksburg, PA

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

The months with the most cloud cover are February and December (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in December
Fredericksburg, PA

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

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

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Fredericksburg, Pennsylvania, USA

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