December weather forecast
Fair Hills, PA

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Weather in December

December, the first month of the winter in Fair Hills, is also an icy month, with an average temperature fluctuating between 30.7°F (-0.7°C) and 42.1°F (5.6°C).

Temperature

The start of December comes with a reduction in the average high-temperature, receding from a cool 51.3°F (10.7°C) in November to a wintry 42.1°F (5.6°C). Throughout the month of December, Fair Hills witnesses an average temperature of 30.7°F (-0.7°C).

Humidity

The months with the highest humidity are February, October and December, with an average relative humidity of 79%.

Rainfall

In Fair Hills, during December, the rain falls for 7.3 days and regularly aggregates up to 1.02" (26mm) of precipitation. In Fair Hills, during the entire year, the rain falls for 116.6 days and collects up to 10.63" (270mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. In Fair Hills, during December, snow falls for 1.8 days and regularly aggregates up to 0.43" (11mm) of snow. In Fair Hills, during the entire year, snow falls for 14.8 days and aggregates up to 3.5" (89mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:05 am and sunset at 4:36 pm. On the last day of December, in Fair Hills, sunrise is at 7:23 am and sunset at 4:45 pm EST.

Sunshine

The average sunshine in December is 5h.

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 estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 2 during December translates into the following guidance:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.

Frequently asked questions

Is it cold during December?

In Fair Hills, in December, the average high-temperature is 42.1°F (5.6°C), and the average low-temperature is 30.7°F (-0.7°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 estimated at 87.8°F (31°C).

What are the most humid months?

February, October and December, with an average relative humidity of 79%, are most humid months.

What is the average humidity in December?

In December, the average relative humidity is 79%.

How much does it rain in December?

In Fair Hills, during December, the rain falls for 7.3 days and regularly aggregates up to 1.02" (26mm) of precipitation.

How many days does it snow in December?

In December, it is snowing for 1.8 days. Throughout December, 0.43" (11mm) of snow is accumulated.

What is the month with the shortest days?

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

What is the average length of the day in December?

The average day length in December is 9h and 22min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:05 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:45 pm EST.

How many hours of sunshine does Fair Hills have in December?

In December, the average sunshine duration is 5h.

When is the lowest UV index?

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

What is the UV index reading in December?

In December, the average daily maximum UV index 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
Fair Hills, PA

Average temperature in December - Fair Hills, PA
  • Average high temperature in December: 42.1°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in December: 30.7°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

Average pressure in December
Fair Hills, PA

Average pressure in December - Fair Hills, 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
Fair Hills, PA

Average wind speed in December - Fair Hills, PA
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in December
Fair Hills, PA

Average humidity in December - Fair Hills, PA
  • Average humidity in December: 79%

The months with the highest relative humidity are February, October and December (79%).
The months with the lowest relative humidity are April, July and August (73%).

Average rainfall in December
Fair Hills, PA

Average rainfall in December - Fair Hills, PA
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is September (0.59").

Average rainfall days in December
Fair Hills, PA

Average rainfall days in December - Fair Hills, PA
  • Average rainfall days in December: 7.3 days

The month with the highest number of rainy days is July (13.8 days).
The months with the least rainy days are January and February (6.3 days).

Average snowfall in December
Fair Hills, PA

Average snowfall in December - Fair Hills, PA
  • Average snowfall in December: 0.43"

The month with the highest snowfall is March (1.02").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Fair Hills, PA

Average snowfall days in December - Fair Hills, PA
  • Average snowfall days in December: 1.8 days

The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Fair Hills, PA

Average daylight in December / Average sunshine in December - Fair Hills, 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: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in December
Fair Hills, PA

Average sunshine days in December - Fair Hills, PA
  • Average sunshine days in December: 21.7 days

The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is July (13.9 days).

Average UV index in December
Fair Hills, PA

Average UV index in December - Fair Hills, PA
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (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
Fair Hills, PA

Average cloud cover in December - Fair Hills, PA
  • Average cloud cover in December: 47

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in December
Fair Hills, PA

Average visibility in December - Fair Hills, PA
  • Average visibility in December: 6mi

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

Fair Hills, Pennsylvania, USA

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