December weather forecast
Willowmere, PA

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Weather in December

The first month of the winter, December, is still a chilly month in Willowmere, Pennsylvania, with temperature in the range of an average low of 31.6°F (-0.2°C) and an average high of 42.8°F (6°C).

Temperature

As December arrives, Willowmere's weather displays a decrease in high-temperatures, transitioning from November's fresh 52.2°F (11.2°C) to a frosty 42.8°F (6°C). December's nights observe an average temperature of 31.6°F (-0.2°C).

Humidity

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

Rainfall

In Willowmere, Pennsylvania, during December, the rain falls for 7.5 days and regularly aggregates up to 1.14" (29mm) of precipitation. In Willowmere, Pennsylvania, during the entire year, the rain falls for 122.4 days and collects up to 12.68" (322mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Willowmere. In Willowmere, in December, snow falls for 2.5 days, with typically accumulated 0.71" (18mm) of snow. Throughout the year, in Willowmere, Pennsylvania, there are 16.3 snowfall days, and 4.72" (120mm) of snow is accumulated.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:04 am and sunset at 4:35 pm. On the last day of the month, 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 in Willowmere 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 radiation for ordinary individuals.
Note: In December, a daily UV index of 2 turns into the following recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Frequently asked questions

Is December cold in Willowmere?

The average high-temperature, in December, in Willowmere, is 42.8°F (6°C), while the average low-temperature is 31.6°F (-0.2°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is calculated to be 89.6°F (32°C).

What are the most humid months in Willowmere?

February, October and December, with an average relative humidity of 78%, are most humid months in Willowmere, Pennsylvania.

What is the average humidity in December in Willowmere?

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

How much does it rain in Willowmere in December?

In Willowmere, Pennsylvania, during December, the rain falls for 7.5 days and regularly aggregates up to 1.14" (29mm) of precipitation.

How many days does it snow in December in Willowmere?

In Willowmere, Pennsylvania, during December, snow falls for 2.5 days and regularly aggregates up to 0.71" (18mm) of snow.

What is the month with the shortest days in Willowmere?

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

What is the average length of the day in December in Willowmere?

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

When is the sunrise / sunset in December in Willowmere?

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, in Willowmere, sunrise is at 7:23 am and sunset at 4:45 pm EST.

How many hours of sunshine does Willowmere have in December?

In Willowmere, the average sunshine duration in December is 5h.

What are the months with the lowest UV index in Willowmere?

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

What is the UV index reading in December in Willowmere?

The average daily maximum UV index in December in Willowmere is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Willowmere, PA

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

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in December: 31.6°F

The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).

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Average pressure in December
Willowmere, PA

Average pressure in December - Willowmere, 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
Willowmere, PA

Average wind speed in December - Willowmere, PA
  • Average wind speed in December: 7.6mph

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity in December
Willowmere, PA

Average humidity in December - Willowmere, 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%).

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Average rainfall in December
Willowmere, PA

Average rainfall in December - Willowmere, PA
  • Average rainfall in December: 1.14"

The wettest month (with the highest rainfall) is August (1.54").
The driest month (with the least rainfall) is September (0.75").

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Average rainfall days in December
Willowmere, PA

Average rainfall days in December - Willowmere, PA
  • Average rainfall days in December: 7.5 days

The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is November (6.4 days).

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Average snowfall in December
Willowmere, PA

Average snowfall in December - Willowmere, PA
  • Average snowfall in December: 0.71"

The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Willowmere, PA

Average snowfall days in December - Willowmere, PA
  • Average snowfall days in December: 2.5 days

The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Willowmere, 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).

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Average sunshine days in December
Willowmere, PA

Average sunshine days in December - Willowmere, PA
  • Average sunshine days in December: 20.9 days

The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is May (14.4 days).

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Average UV index in December
Willowmere, PA

Average UV index in December - Willowmere, 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).

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Average cloud cover in December
Willowmere, PA

Average cloud cover in December - Willowmere, 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).

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Average visibility in December
Willowmere, PA

Average visibility in December - Willowmere, 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).

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Willowmere, Pennsylvania, USA

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