December weather forecast
Elco, PA

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Weather in December

December, the first month of the winter in Elco, 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

Elco's transition into December involves a shift in temperature, receding from a chilly 49.6°F (9.8°C) in November to an icy 40.1°F (4.5°C). During the month of December, Elco anticipates a mean low-temperature of 28.8°F (-1.8°C).

Humidity

In December, the average relative humidity is 83%.

Rainfall

In Elco, during December, the rain falls for 14 days and regularly aggregates up to 3.07" (78mm) of precipitation. In Elco, during the entire year, the rain falls for 191.3 days and collects up to 35.24" (895mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Elco, in December, during 12.6 snowfall days, 4.88" (124mm) of snow is typically accumulated. Throughout the year, there are 60.2 snowfall days, and 25.08" (637mm) 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 7:23 am and sunset at 4:54 pm. On the last day of December, sunrise is at 7:41 am and sunset at 5:04 pm EST.

Sunshine

The average sunshine in December is 3.6h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index of 1 during December translates into these guidelines:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Enhance your sun protection with tightly woven, yet airy clothing. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

December temperatures vary between a 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 87.8°F (31°C).

What is the average humidity in December?

The average relative humidity in December is 83%.

How many days does it rain in December?

In Elco, during December, the rain falls for 14 days and regularly aggregates up to 3.07" (78mm) of precipitation.

How much does it snow in December?

In Elco, in December, snow falls for 12.6 days, with typically accumulated 4.88" (124mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Elco have in December?

In December, the average day length is 9h and 23min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:23 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:04 pm EST.

How many hours of sunshine does Elco have in December?

In December, the average sunshine duration is 3.6h.

What is the month with the lowest UV index?

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

What is the UV index intensity in December?

In Elco, the average daily maximum UV index in December is 1. 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
Elco, PA

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

The warmest month (with the highest average high temperature) is July (82.9°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 (61.5°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

Average pressure in December
Elco, PA

Average pressure in December - Elco, PA
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Elco, PA

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

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

Average humidity in December
Elco, PA

Average humidity in December - Elco, PA
  • Average humidity in December: 83%

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (76%).

Average rainfall in December
Elco, PA

Average rainfall in December - Elco, PA
  • Average rainfall in December: 3.07"

The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is November (2.13").

Average rainfall days in December
Elco, PA

Average rainfall days in December - Elco, PA
  • Average rainfall days in December: 14 days

The month with the highest number of rainy days is May (21.8 days).
The months with the least rainy days are January and February (11.7 days).

Average snowfall in December
Elco, PA

Average snowfall in December - Elco, PA
  • Average snowfall in December: 4.88"

The month with the highest snowfall is January (6.26").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Elco, PA

Average snowfall days in December - Elco, PA
  • Average snowfall days in December: 12.6 days

The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Elco, 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 4min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in December
Elco, PA

Average sunshine days in December - Elco, PA
  • Average sunshine days in December: 9.9 days

The month with the most sunshine days is November (14.3 days).
The month with the least sunshine days is January (6.8 days).

Average UV index in December
Elco, PA

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

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

Average cloud cover in December
Elco, PA

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

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in December
Elco, PA

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

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

Elco, Pennsylvania, USA

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