December weather forecast
Austin, PA

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Weather in December

December, the first month of the winter in Austin, is also a wintry month, with an average temperature ranging between min 24.6°F (-4.1°C) and max 34.9°F (1.6°C).

Temperature

In Austin, the average high-temperature in December drops from a chilly 44.2°F (6.8°C) in November to a wintry 34.9°F (1.6°C). Austin throughout December, records an average low-temperature of 24.6°F (-4.1°C).

Humidity

The average relative humidity in December in Austin is 86%.

Rainfall

In December, the rain falls for 11.5 days. Throughout December, 2.91" (74mm) of precipitation is accumulated. In Austin, during the entire year, the rain falls for 166.5 days and collects up to 31.93" (811mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Austin, in December, snow falls for 18 days, with typically accumulated 9.25" (235mm) of snow. Throughout the year, there are 88.7 snowfall days, and 45.47" (1155mm) of snow is accumulated.

Daylight

The month with the shortest days in Austin is December, with an average of 9h and 12min of daylight.
On the first day of December, sunrise is at 7:20 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 4:52 pm EST.

Sunshine

The months with the least sunshine are January and December, with an average of 2.7h of sunshine.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 1 in December transforms into the following instructions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Updated: Jul 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

In Austin, in December, the average high-temperature is 34.9°F (1.6°C), and the average low-temperature is 24.6°F (-4.1°C).

What is the average humidity in December?

In Austin, the average relative humidity in December is 86%.

How many days does it rain in December?

In Austin, during December, the rain falls for 11.5 days and regularly aggregates up to 2.91" (74mm) of precipitation.

How many days does it snow in December?

In Austin, in December, during 18 snowfall days, 9.25" (235mm) of snow is typically accumulated.

What is the month with the shortest days?

With an average of 9h and 12min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

The average day length in December is 9h and 13min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:20 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 4:52 pm EST.

What are the months with the least sunshine?

January and December, with an average of 2.7h of sunshine, are months with the least sunshine in Austin.

How many hours of sunshine does Austin have in December?

The average sunshine duration in December is 2.7h.

When is the lowest UV index?

The months with the lowest UV index are January, February and December, with an average maximum UV index of 1.

How high is the UV index in December?

In Austin, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents 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
Austin, PA

Average temperature in December - Austin, PA
  • Average high temperature in December: 34.9°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in December: 24.6°F

The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

Average pressure in December
Austin, PA

Average pressure in December - Austin, 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).

Average wind speed in December
Austin, PA

Average wind speed in December - Austin, PA
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in December
Austin, PA

Average humidity in December - Austin, PA
  • Average humidity in December: 86%

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are June and July (78%).

Average rainfall in December
Austin, PA

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

The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is August (2.13").

Average rainfall days in December
Austin, PA

Average rainfall days in December - Austin, PA
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in December
Austin, PA

Average snowfall in December - Austin, PA
  • Average snowfall in December: 9.25"

The month with the highest snowfall is February (11.61").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Austin, PA

Average snowfall days in December - Austin, PA
  • Average snowfall days in December: 18 days

The month with the highest number of snowfall days is January (21 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Austin, PA
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 2h and 4min

The months with the most sunshine are July and August (Average sunshine: 9h and 30min).
The months with the least sunshine are January and December (Average sunshine: 2h and 42min).

Average sunshine days in December
Austin, PA

Average sunshine days in December - Austin, PA
  • Average sunshine days in December: 6.5 days

The month with the most sunshine days is September (14.2 days).
The month with the least sunshine days is February (6.1 days).

Average UV index in December
Austin, PA

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

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).

Average cloud cover in December
Austin, PA

Average cloud cover in December - Austin, PA
  • Average cloud cover in December: 74

The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 42).

Average visibility in December
Austin, PA

Average visibility in December - Austin, PA
  • Average visibility in December: 4mi

The months with the highest visibility are March, April, May, June, July and November (5mi).
The months with the lowest visibility are January, February, August, September, October and December (4mi).

Austin, Pennsylvania, USA

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