December weather forecast
Park Crest, PA

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Weather in December

The first month of the winter, December, is still a cold month in Park Crest, Pennsylvania, with an average temperature fluctuating between 38.1°F (3.4°C) and 27.3°F (-2.6°C).

Temperature

The average high-temperature drops in December, from November's frosty 47.5°F (8.6°C) to a cold 38.1°F (3.4°C). Park Crest observes an average nighttime low-temperature of 27.3°F (-2.6°C) during the month of December.

Humidity

The months with the highest humidity are February and December, with an average relative humidity of 83%.

Rainfall

In Park Crest, during December, the rain falls for 4.5 days and regularly aggregates up to 0.55" (14mm) of precipitation. In Park Crest, during the entire year, the rain falls for 66.7 days and collects up to 6.38" (162mm) of precipitation.

Snowfall

Months with snowfall are January through March, October through December. In Park Crest, during December, snow falls for 3.8 days and regularly aggregates up to 0.43" (11mm) of snow. Throughout the year, there are 21.5 snowfall days, and 3.15" (80mm) of snow is accumulated.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:09 am and sunset at 4:37 pm. On the last day of December, sunrise is at 7:28 am and sunset at 4:46 pm EST.

Sunshine

In December, the average sunshine is 4.3h.

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 reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 2 during December translates into the following directions:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. It's recommended to limit sun exposure when its radiation is at its peak during midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

In December, in Park Crest, the average high-temperature is 38.1°F (3.4°C), and the average low-temperature is 27.3°F (-2.6°C). In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 86°F (30°C).

What are the most humid months?

February and December, with an average relative humidity of 83%, are most humid months in Park Crest.

What is the average humidity in December?

In Park Crest, the average relative humidity in December is 83%.

How much does it rain in December?

In Park Crest, during December, the rain falls for 4.5 days and regularly aggregates up to 0.55" (14mm) of precipitation.

How much does it snow in December?

In Park Crest, during December, snow falls for 3.8 days and regularly aggregates up to 0.43" (11mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 18min of daylight.

What is the average length of the day in December?

In Park Crest, the average day length in December is 9h and 18min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:09 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:46 pm EST.

How many hours of sunshine does Park Crest have in December?

The average sunshine duration in December is 4.3h.

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?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk 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
Park Crest, PA

Average temperature in December - Park Crest, PA
  • Average high temperature in December: 38.1°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.8°F).

  • Average low temperature in December: 27.3°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in December
Park Crest, PA

Average pressure in December - Park Crest, 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
Park Crest, PA

Average wind speed in December - Park Crest, PA
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in December
Park Crest, PA

Average humidity in December - Park Crest, PA
  • Average humidity in December: 83%

The months with the highest relative humidity are February and December (83%).
The month with the lowest relative humidity is April (77%).

Average rainfall in December
Park Crest, PA

Average rainfall in December - Park Crest, PA
  • Average rainfall in December: 0.55"

The wettest month (with the highest rainfall) is May (0.71").
The driest month (with the least rainfall) is September (0.2").

Average rainfall days in December
Park Crest, PA

Average rainfall days in December - Park Crest, PA
  • Average rainfall days in December: 4.5 days

The month with the highest number of rainy days is April (8.1 days).
The month with the least rainy days is November (3.5 days).

Average snowfall in December
Park Crest, PA

Average snowfall in December - Park Crest, PA
  • Average snowfall in December: 0.43"

The months with the highest snowfall are January and November (0.71").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in December
Park Crest, PA

Average snowfall days in December - Park Crest, PA
  • Average snowfall days in December: 3.8 days

The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Park Crest, PA

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

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

Average sunshine days in December
Park Crest, PA

Average sunshine days in December - Park Crest, PA
  • Average sunshine days in December: 24.9 days

The month with the most sunshine days is December (24.9 days).
The month with the least sunshine days is May (19.9 days).

Average UV index in December
Park Crest, PA

Average UV index in December - Park Crest, PA
  • Average UV index in December: 2

The month with the highest UV index is 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
Park Crest, PA

Average cloud cover in December - Park Crest, PA
  • Average cloud cover in December: 54

The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in December
Park Crest, PA

Average visibility in December - Park Crest, PA
  • Average visibility in December: 5mi

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

Park Crest, Pennsylvania, USA

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