December weather forecast
Wallingford, PA

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Weather in December

The first month of the winter, December, is still a chilly month in Wallingford, Pennsylvania, with an average temperature fluctuating between 32.9°F (0.5°C) and 44.1°F (6.7°C).

Temperature

In Wallingford, the average high-temperature in December slightly decreases from a fresh 52.7°F (11.5°C) in November to a frosty 44.1°F (6.7°C). An average low-temperature of 32.9°F (0.5°C) marks the nights in Wallingford throughout December.

Humidity

February, October and December, with an average relative humidity of 77%, are the most humid months.

Rainfall

In Wallingford, in December, during 8.7 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, there are 148.4 rainfall days, and 25.94" (659mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall in Wallingford, Pennsylvania. In Wallingford, during December, snow falls for 1.5 days and regularly aggregates up to 0.91" (23mm) of snow. Throughout the year, there are 12.6 snowfall days, and 7.28" (185mm) of snow is accumulated.

Daylight

December has the shortest days of the year, 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 4:37 pm. On the last day of December, in Wallingford, sunrise is at 7:22 am and sunset at 4:46 pm EST.

Sunshine

The average sunshine in December is 5.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 2 during December translates into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Frequently asked questions

How cold is it in Wallingford in December?

During December, Wallingford experiences an average high-temperature of 44.1°F (6.7°C) and a low-temperature of 32.9°F (0.5°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is evaluated at 89.6°F (32°C).

What are the most humid months in Wallingford?

The months with the highest humidity in Wallingford, Pennsylvania, are February, October and December, with an average relative humidity of 77%.

What is the average humidity in December in Wallingford?

In Wallingford, the average relative humidity in December is 77%.

How many days does it rain in December in Wallingford?

In Wallingford, during December, the rain falls for 8.7 days and regularly aggregates up to 2.32" (59mm) of precipitation.

How many days does it snow in December in Wallingford?

In Wallingford, Pennsylvania, in December, during 1.5 snowfall days, 0.91" (23mm) of snow is typically accumulated.

What is the month with the shortest days in Wallingford?

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 in Wallingford?

The average day length in December in Wallingford, Pennsylvania, is 9h and 24min.

When is the sunrise / sunset in December in Wallingford?

In December, on the first day of the month, sunrise is at 7:04 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:46 pm EST.

How many hours of sunshine does Wallingford have in December?

In December, the average sunshine duration in Wallingford is 5.1h.

What is the month with the lowest UV index in Wallingford?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Wallingford, Pennsylvania.

What is the UV index reading in December in Wallingford?

In Wallingford, Pennsylvania, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to 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
Wallingford, PA

Average temperature in December - Wallingford, PA
  • Average high temperature in December: 44.1°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 (37.4°F).

  • Average low temperature in December: 32.9°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

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Average pressure in December
Wallingford, PA

Average pressure in December - Wallingford, 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).

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Average wind speed in December
Wallingford, PA

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

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in December
Wallingford, PA

Average humidity in December - Wallingford, PA
  • Average humidity in December: 77%

The months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in December
Wallingford, PA

Average rainfall in December - Wallingford, PA
  • Average rainfall in December: 2.32"

The wettest month (with the highest rainfall) is August (3.11").
The driest month (with the least rainfall) is January (1.61").

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Average rainfall days in December
Wallingford, PA

Average rainfall days in December - Wallingford, PA
  • Average rainfall days in December: 8.7 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (7.1 days).

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Average snowfall in December
Wallingford, PA

Average snowfall in December - Wallingford, PA
  • Average snowfall in December: 0.91"

The month with the highest snowfall is March (2.32").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Wallingford, PA

Average snowfall days in December - Wallingford, PA
  • Average snowfall days in December: 1.5 days

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Wallingford, 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 1min

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 54min).

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Average sunshine days in December
Wallingford, PA

Average sunshine days in December - Wallingford, PA
  • Average sunshine days in December: 20.5 days

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index in December
Wallingford, PA

Average UV index in December - Wallingford, 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, November and December (UV index 2).

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Average cloud cover in December
Wallingford, PA

Average cloud cover in December - Wallingford, PA
  • Average cloud cover in December: 45

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in December
Wallingford, PA

Average visibility in December - Wallingford, PA
  • Average visibility in December: 6mi

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

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Wallingford, Pennsylvania, USA

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