December weather forecast
Eldersville, PA

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Weather in December

The first month of the winter, December, is also a wintry month in Eldersville, Pennsylvania, with an average temperature varying between 27.9°F (-2.3°C) and 39.4°F (4.1°C).

Temperature

The commencement of December indicates a shift in the average high-temperature, receding from November's chilly 48.9°F (9.4°C) to a wintry 39.4°F (4.1°C). Eldersville's average low-temperature in the month of December is recorded at a freezing cold 27.9°F (-2.3°C).

Humidity

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

Rainfall

In Eldersville, in December, it is raining for 12.9 days, with typically 2.95" (75mm) of accumulated precipitation. Throughout the year, there are 183.5 rainfall days, and 34.37" (873mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In December, it is snowing for 13.2 days. Throughout December, 4.49" (114mm) of snow is accumulated. Throughout the year, there are 61.6 snowfall days, and 23.9" (607mm) 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 7:26 am and sunset at 4:56 pm. On the last day of December, sunrise is at 7:44 am and sunset at 5:05 pm EST.

Sunshine

The average sunshine in December is 3.4h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A daily high UV index of 1 in December leads to these guidelines:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.

Frequently asked questions

How cold is December?

An average high-temperature, in December, in Eldersville, is 39.4°F (4.1°C) and the average low-temperature is 27.9°F (-2.3°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 87.8°F (31°C).

What is the average humidity in December?

In December, the average relative humidity is 84%.

How much does it rain in December?

In Eldersville, in December, it is raining for 12.9 days, with typically 2.95" (75mm) of accumulated precipitation.

How much does it snow in December?

In Eldersville, during December, snow falls for 13.2 days and regularly aggregates up to 4.49" (114mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 24min of daylight.

How many hours of daylight does Eldersville have in December?

In Eldersville, the average day length in December is 9h and 21min.

When are sunrise and sunset in December in Eldersville?

In December, on the first day of the month, sunrise is at 7:26 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:05 pm EST.

How long on average sun shines in December?

In Eldersville, the average sunshine duration in December is 3.4h.

When is the lowest UV index?

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

How high is the UV index in December?

In Eldersville, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Eldersville, PA

Average temperature in December - Eldersville, PA
  • Average high temperature in December: 39.4°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 (33.1°F).

  • Average low temperature in December: 27.9°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

Average pressure in December
Eldersville, PA

Average pressure in December - Eldersville, PA
  • Average pressure in December: 30.11"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
Eldersville, PA

Average wind speed in December - Eldersville, PA
  • Average wind speed in December: 7.3mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

Average humidity in December
Eldersville, PA

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

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (77%).

Average rainfall in December
Eldersville, PA

Average rainfall in December - Eldersville, PA
  • Average rainfall in December: 2.95"

The wettest month (with the highest rainfall) is April (3.54").
The driest month (with the least rainfall) is November (2.28").

Average rainfall days in December
Eldersville, PA

Average rainfall days in December - Eldersville, PA
  • Average rainfall days in December: 12.9 days

The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is January (10.7 days).

Average snowfall in December
Eldersville, PA

Average snowfall in December - Eldersville, PA
  • Average snowfall in December: 4.49"

The month with the highest snowfall is January (6.1").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Eldersville, PA

Average snowfall days in December - Eldersville, PA
  • Average snowfall days in December: 13.2 days

The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Eldersville, 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: 3h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in December
Eldersville, PA

Average sunshine days in December - Eldersville, PA
  • Average sunshine days in December: 9.5 days

The month with the most sunshine days is November (15.1 days).
The month with the least sunshine days is January (7.8 days).

Average UV index in December
Eldersville, PA

Average UV index in December - Eldersville, PA
  • Average UV index in December: 1

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Eldersville, PA

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

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in December
Eldersville, PA

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

The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January and February (4mi).

Eldersville, Pennsylvania, USA

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