December weather forecast
Warrington, PA

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Weather in December

The first month of the winter, December, is also a frosty month in Warrington, Pennsylvania, with an average temperature fluctuating between 31.1°F (-0.5°C) and 42.8°F (6°C).

Temperature

Warrington's December weather features a mild decline in high-temperatures, reducing from a cool 51.8°F (11°C) in November to a frosty 42.8°F (6°C). An average temperature of 31.1°F (-0.5°C) is recorded during the nights in December.

Humidity

The months with the highest humidity are February, October and December, with an average relative humidity of 78%.

Rainfall

December is the month with the most rainfall. Rain falls for 5.8 days and accumulates 0.75" (19mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. In Warrington, in December, snow falls for 1.7 days, with typically accumulated 0.28" (7mm) of snow. Throughout the year, there are 12.6 snowfall days, and 1.73" (44mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:04 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:22 am and sunset at 4:44 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 of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In December, the maximum UV index of 2 suggests these recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Updated: Jun 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold during December?

The high-temperature during December is 42.8°F (6°C) and the low-temperature is 31.1°F (-0.5°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, in August is estimated at 89.6°F (32°C).

What are the most humid months?

The months with the highest humidity are February, October and December, with an average relative humidity of 78%.

What is the average humidity in December?

In Warrington, the average relative humidity in December is 78%.

What is the wettest month?

December is the month with the most rainfall in Warrington. Rain falls for 5.8 days and accumulates 0.75" (19mm) of precipitation.

How many days does it rain in December?

In Warrington, during December, the rain falls for 5.8 days and regularly aggregates up to 0.75" (19mm) of precipitation.

How many days does it snow in December?

In Warrington, during December, snow falls for 1.7 days and regularly aggregates up to 0.28" (7mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

How many hours of daylight does Warrington have in December?

In December, the average day length in Warrington is 9h and 22min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:04 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:44 pm EST.

How many hours of sunshine does Warrington have in December?

In December, the average sunshine duration is 5h.

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.

How high is the UV index in December?

In Warrington, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk 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
Warrington, PA

Average temperature in December - Warrington, PA
  • Average high temperature in December: 42.8°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in December: 31.1°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in December
Warrington, PA

Average pressure in December - Warrington, 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
Warrington, PA

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

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in December
Warrington, PA

Average humidity in December - Warrington, PA
  • Average humidity in December: 78%

The months with the highest relative humidity are February, October and December (78%).
The months with the lowest relative humidity are April, July and August (72%).

Average rainfall in December
Warrington, PA

Average rainfall in December - Warrington, PA
  • Average rainfall in December: 0.75"

The wettest month (with the highest rainfall) is December (0.75").
The driest month (with the least rainfall) is September (0.2").

Average rainfall days in December
Warrington, PA

Average rainfall days in December - Warrington, PA
  • Average rainfall days in December: 5.8 days

The month with the highest number of rainy days is July (10.3 days).
The month with the least rainy days is January (4.3 days).

Average snowfall in December
Warrington, PA

Average snowfall in December - Warrington, PA
  • Average snowfall in December: 0.28"

The month with the highest snowfall is February (0.43").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Warrington, PA

Average snowfall days in December - Warrington, PA
  • Average snowfall days in December: 1.7 days

The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Warrington, 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 48min).

Average sunshine days in December
Warrington, PA

Average sunshine days in December - Warrington, PA
  • Average sunshine days in December: 23.2 days

The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is July (17.4 days).

Average UV index in December
Warrington, PA

Average UV index in December - Warrington, 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
Warrington, PA

Average cloud cover in December - Warrington, 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
Warrington, PA

Average visibility in December - Warrington, 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).

Warrington, Pennsylvania, USA

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