December weather forecast
Allport, PA

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Weather in December

The first month of the winter, December, is also an icy month in Allport, Pennsylvania, with an average temperature fluctuating between 25.9°F (-3.4°C) and 36.3°F (2.4°C).

Temperature

With the onset of December, Allport's average high-temperature adjusts, receding from November's chilly 45.9°F (7.7°C) to an icy 36.3°F (2.4°C). Throughout December, Allport witnesses a consistent average low-temperature of 25.9°F (-3.4°C).

Humidity

In Allport, the average relative humidity in December is 84%.

Rainfall

In December, the rain falls for 11.4 days. Throughout December, 1.57" (40mm) of precipitation is accumulated. Throughout the year, there are 159 rainfall days, and 23.46" (596mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Allport, Pennsylvania, during December, snow falls for 13.8 days and regularly aggregates up to 4.13" (105mm) of snow. Throughout the year, there are 67.7 snowfall days, and 23.54" (598mm) of snow is accumulated.

Daylight

The month with the shortest days in Allport is December, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:18 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:54 pm EST.

Sunshine

The average sunshine in December is 3.5h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, a daily maximum UV index of 1 leads to the following instructions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. To cut down UV radiation exposure by about half, sport a wide-brim hat. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Jul 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Allport in December?

In Allport, in December, the average high-temperature is 36.3°F (2.4°C), and the average low-temperature is 25.9°F (-3.4°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in July is appraised at 86°F (30°C).

What is the average humidity in December?

In Allport, the average relative humidity in December is 84%.

How many days does it rain in December?

In Allport, during December, the rain falls for 11.4 days and regularly aggregates up to 1.57" (40mm) of precipitation.

How much does it snow in December?

In Allport, during December, snow falls for 13.8 days and regularly aggregates up to 4.13" (105mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Allport have in December?

The average day length in December in Allport is 9h and 17min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:18 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:54 pm EST.

How many hours of sunshine does Allport have in December?

The average sunshine duration in December is 3.5h.

What is the month with the lowest UV index?

With an average maximum UV index of 1, December is the month with the lowest UV index.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 1. A UV Index value of 2, and less, symbolizes 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
Allport, PA

Average temperature in December - Allport, PA
  • Average high temperature in December: 36.3°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (30.6°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°F).

Average pressure in December
Allport, PA

Average pressure in December - Allport, 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
Allport, PA

Average wind speed in December - Allport, PA
  • Average wind speed in December: 7.9mph

The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in December
Allport, PA

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

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is July (76%).

Average rainfall in December
Allport, PA

Average rainfall in December - Allport, PA
  • Average rainfall in December: 1.57"

The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is November (1.42").

Average rainfall days in December
Allport, PA

Average rainfall days in December - Allport, PA
  • Average rainfall days in December: 11.4 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (8.1 days).

Average snowfall in December
Allport, PA

Average snowfall in December - Allport, PA
  • Average snowfall in December: 4.13"

The month with the highest snowfall is January (6.02").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Allport, PA

Average snowfall days in December - Allport, PA
  • Average snowfall days in December: 13.8 days

The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Allport, 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 3min

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

Average sunshine days in December
Allport, PA

Average sunshine days in December - Allport, PA
  • Average sunshine days in December: 10.5 days

The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is February (8.7 days).

Average UV index in December
Allport, PA

Average UV index in December - Allport, 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
Allport, PA

Average cloud cover in December - Allport, PA
  • Average cloud cover in December: 64

The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 38).

Average visibility in December
Allport, PA

Average visibility in December - Allport, 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).

Allport, Pennsylvania, USA

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