December weather forecast
Fountain Hill, PA

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Weather in December

The first month of the winter, December, is still a cold month in Fountain Hill, Pennsylvania, with an average temperature fluctuating between 40.1°F (4.5°C) and 28.8°F (-1.8°C).

Temperature

December's arrival comes with a decrease in the average high-temperature, moving from a cool 50°F (10°C) in November to a wintry 40.1°F (4.5°C). The average low-temperature during December nights is a freezing cold 28.8°F (-1.8°C).

Humidity

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

Rainfall

In Fountain Hill, in December, during 10.7 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, there are 153 rainfall days, and 26.81" (681mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In December, it is snowing for 4.8 days. Throughout December, 2.48" (63mm) of snow is accumulated. Throughout the year, there are 26.7 snowfall days, and 14.49" (368mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Fountain Hill, Pennsylvania, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:06 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:25 am and sunset at 4:44 pm EST.

Sunshine

In December, the average sunshine is 4.7h.

UV index

The months with the lowest UV index in Fountain Hill are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.

Frequently asked questions

Is December cold?

The high-temperature, in December, in Fountain Hill, is 40.1°F (4.5°C), while the low-temperature averages to 28.8°F (-1.8°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is evaluated at 86°F (30°C).

What is the average humidity in December?

In December, the average relative humidity is 80%.

How much does it rain in December?

In December, the rain falls for 10.7 days. Throughout December, 2.24" (57mm) of precipitation is accumulated.

How many days does it snow in December in Fountain Hill?

In Fountain Hill, Pennsylvania, during December, snow falls for 4.8 days and regularly aggregates up to 2.48" (63mm) of snow.

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 Fountain Hill have in December?

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

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:06 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:44 pm EST.

How long on average sun shines in December?

In Fountain Hill, Pennsylvania, the average sunshine duration in December is 4.7h.

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 reading in December?

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

Average temperature in December - Fountain Hill, PA
  • Average high temperature in December: 40.1°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in December: 28.8°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in December
Fountain Hill, PA

Average pressure in December - Fountain Hill, PA
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Fountain Hill, PA

Average wind speed in December - Fountain Hill, PA
  • Average wind speed in December: 7.6mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in December
Fountain Hill, PA

Average humidity in December - Fountain Hill, PA
  • Average humidity in December: 80%

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

Average rainfall in December
Fountain Hill, PA

Average rainfall in December - Fountain Hill, PA
  • Average rainfall in December: 2.24"

The wettest month (with the highest rainfall) is July (2.91").
The driest month (with the least rainfall) is September (1.57").

Average rainfall days in December
Fountain Hill, PA

Average rainfall days in December - Fountain Hill, PA
  • Average rainfall days in December: 10.7 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in December
Fountain Hill, PA

Average snowfall in December - Fountain Hill, PA
  • Average snowfall in December: 2.48"

The month with the highest snowfall is March (4.13").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Fountain Hill, PA

Average snowfall days in December - Fountain Hill, PA
  • Average snowfall days in December: 4.8 days

The months with the highest number of snowfall days are January and February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Fountain Hill, PA

Average daylight in December / Average sunshine in December - Fountain Hill, 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).

Average sunshine days in December
Fountain Hill, PA

Average sunshine days in December - Fountain Hill, PA
  • Average sunshine days in December: 17.2 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11 days).

Average UV index in December
Fountain Hill, PA

Average UV index in December - Fountain Hill, 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
Fountain Hill, PA

Average cloud cover in December - Fountain Hill, PA
  • Average cloud cover in December: 50

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in December
Fountain Hill, PA

Average visibility in December - Fountain Hill, PA
  • Average visibility in December: 5mi

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

Fountain Hill, Pennsylvania, USA

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