December weather forecast
Didier, PA

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Weather in December

December, the first month of the winter in Didier, is still a cold month, with an average temperature fluctuating between 28.8°F (-1.8°C) and 40.1°F (4.5°C).

Temperature

December's onset brings a reduction in the average high-temperature, from a fresh 50°F (10°C) in November to an icy 40.1°F (4.5°C). Throughout the month of December, the average temperature dips to a freezing cold 28.8°F (-1.8°C) at night.

Humidity

The average relative humidity in December in Didier is 80%.

Rainfall

In December, the rain falls for 10.7 days. Throughout December, 2.24" (57mm) of precipitation is accumulated. Throughout the year, in Didier, there are 153 rainfall days, and 26.81" (681mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Didier, Pennsylvania, in December, snow falls for 4.8 days, with typically accumulated 2.48" (63mm) of snow. Throughout the year, there are 26.7 snowfall days, and 14.49" (368mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:06 am and sunset at 4:34 pm. On the last day of December, sunrise is at 7:24 am and sunset at 4:44 pm EST.

Sunshine

In December, the average sunshine is 4.7h.

UV index

The months with the lowest UV index in Didier are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
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Frequently asked questions

Is it cold in Didier during December?

During December, Didier experiences an average high-temperature of 40.1°F (4.5°C) and a low-temperature of 28.8°F (-1.8°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in August is evaluated at 86°F (30°C).

What is the average humidity in December in Didier?

In December, the average relative humidity is 80%.

How much does it rain in Didier in December?

In Didier, during December, the rain falls for 10.7 days and regularly aggregates up to 2.24" (57mm) of precipitation.

How many days does it snow in December in Didier?

In Didier, Pennsylvania, in December, during 4.8 snowfall days, 2.48" (63mm) of snow is typically accumulated.

What is the month with the shortest days in Didier?

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

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

In Didier, the average day length in December is 9h and 20min.

When is the sunrise / sunset in December in Didier?

On the first day of December, sunrise is at 7:06 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:44 pm EST.

How many hours of sunshine does Didier have in December?

The average sunshine duration in December in Didier, Pennsylvania, is 4.7h.

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

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

What is the UV index intensity in December in Didier?

The average daily maximum UV index in December in Didier, Pennsylvania, is 2. A UV Index value of 2, and less, symbolizes 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
Didier, PA

Average temperature in December - Didier, PA
  • Average high temperature in December: 40.1°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in December: 28.8°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in December
Didier, PA

Average pressure in December - Didier, 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
Didier, PA

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

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in December
Didier, PA

Average humidity in December - Didier, PA
  • Average humidity in December: 80%

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April and July (76%).

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Average rainfall in December
Didier, PA

Average rainfall in December - Didier, PA
  • Average rainfall in December: 2.24"

The wettest month (with the highest rainfall) is July (2.91").
The driest month (with the least rainfall) is September (1.57").

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Average rainfall days in December
Didier, PA

Average rainfall days in December - Didier, PA
  • Average rainfall days in December: 10.7 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (7.8 days).

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Average snowfall in December
Didier, PA

Average snowfall in December - Didier, PA
  • Average snowfall in December: 2.48"

The month with the highest snowfall is March (4.13").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Didier, PA

Average snowfall days in December - Didier, PA
  • Average snowfall days in December: 4.8 days

The months with the highest number of snowfall days are January and February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Didier, 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 18min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days in December
Didier, PA

Average sunshine days in December - Didier, PA
  • Average sunshine days in December: 17.2 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11 days).

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Average UV index in December
Didier, PA

Average UV index in December - Didier, PA
  • Average UV index in December: 2

The months with the highest UV index are May, June and July (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
Didier, PA

Average cloud cover in December - Didier, PA
  • Average cloud cover in December: 50

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 34).

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Average visibility in December
Didier, PA

Average visibility in December - Didier, PA
  • Average visibility in December: 5mi

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

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Didier, Pennsylvania, USA

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