December weather forecast
Avella, PA

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Weather in December

December, the first month of the winter in Avella, is also a wintry month, with temperature in the range of an average low of 27.9°F (-2.3°C) and an average high of 39.4°F (4.1°C).

Temperature

The beginning of December marks a decrease in the average high-temperature, transitioning from a frosty 49.1°F (9.5°C) in November to a wintry 39.4°F (4.1°C). During December, Avella's temperature averages to a subzero cold 27.9°F (-2.3°C) at night.

Humidity

In December, the average relative humidity in Avella, Pennsylvania, is 83%.

Rainfall

In December, the rain falls for 12.9 days. Throughout December, 2.91" (74mm) of precipitation is accumulated. Throughout the year, there are 182.9 rainfall days, and 33.07" (840mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In Avella, in December, snow falls for 11.3 days, with typically accumulated 3.19" (81mm) of snow. Throughout the year, there are 53.3 snowfall days, and 18.39" (467mm) 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 7:25 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.

Sunshine

In Avella, the average sunshine in December is 3.5h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: An average UV index of 1 in December transforms into this advice:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Updated: Jul 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

December temperatures vary between a high-temperature of 39.4°F (4.1°C) and a low-temperature of 27.9°F (-2.3°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 87.8°F (31°C).

What is the average humidity in December?

In Avella, the average relative humidity in December is 83%.

How much does it rain in December?

In December, the rain falls for 12.9 days. Throughout December, 2.91" (74mm) of precipitation is accumulated.

How much does it snow in Avella in December?

In Avella, during December, snow falls for 11.3 days and regularly aggregates up to 3.19" (81mm) of snow.

What is the month with the shortest days in Avella?

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

What is the average length of the day in December?

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

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:25 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 many hours of sunshine does Avella have in December?

In Avella, the average sunshine duration in December is 3.5h.

When is 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?

The average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a low health threat 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
Avella, PA

Average temperature in December - Avella, PA
  • Average high temperature in December: 39.4°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (33.4°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 (20.7°F).

Average pressure in December
Avella, PA

Average pressure in December - Avella, 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
Avella, PA

Average wind speed in December - Avella, 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
Avella, PA

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

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
Avella, PA

Average rainfall in December - Avella, PA
  • Average rainfall in December: 2.91"

The wettest month (with the highest rainfall) is April (3.5").
The driest month (with the least rainfall) is November (2.17").

Average rainfall days in December
Avella, PA

Average rainfall days in December - Avella, 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 November (11.1 days).

Average snowfall in December
Avella, PA

Average snowfall in December - Avella, PA
  • Average snowfall in December: 3.19"

The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Avella, PA

Average snowfall days in December - Avella, PA
  • Average snowfall days in December: 11.3 days

The month with the highest number of snowfall days is January (15.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Avella, 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 3min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

Average sunshine days in December
Avella, PA

Average sunshine days in December - Avella, PA
  • Average sunshine days in December: 10.9 days

The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is January (8.5 days).

Average UV index in December
Avella, PA

Average UV index in December - Avella, 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
Avella, PA

Average cloud cover in December - Avella, 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 35).

Average visibility in December
Avella, PA

Average visibility in December - Avella, 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).

Avella, Pennsylvania, USA

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