December weather forecast
Salona, PA

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Weather in December

The first month of the winter, December, is also a wintry month in Salona, Pennsylvania, with an average temperature varying between 36.7°F (2.6°C) and 25.9°F (-3.4°C).

Temperature

Salona's December weather shows a moderate shift in high-temperatures, falling from November's frosty 46.2°F (7.9°C) to a cold 36.7°F (2.6°C). Salona's December nights cool down to an average low-temperature of 25.9°F (-3.4°C).

Humidity

February and December, with an average relative humidity of 84%, are the most humid months.

Rainfall

In Salona, in December, during 12.4 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. In Salona, during the entire year, the rain falls for 174.7 days and collects up to 32.09" (815mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In December, in Salona, it is snowing for 12.2 days. Throughout December, 4.76" (121mm) of snow is accumulated. In Salona, during the entire year, snow falls for 56.1 days and aggregates up to 24.84" (631mm) of snow.

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 7:16 am and sunset at 4:42 pm. On the last day of December, sunrise is at 7:34 am and sunset at 4:51 pm EST.

Sunshine

The average sunshine in December is 3.4h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 1 in December translates into this advice:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Updated: Aug 14, 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 36.7°F (2.6°C) and a low-temperature of 25.9°F (-3.4°C). In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 87.8°F (31°C).

What are the most humid months?

The months with the highest humidity are February and December, with an average relative humidity of 84%.

What is the average humidity in December?

The average relative humidity in December is 84%.

How many days does it rain in December?

In December, the rain falls for 12.4 days. Throughout December, 2.68" (68mm) of precipitation is accumulated.

How many days does it snow in December?

In Salona, in December, during 12.2 snowfall days, 4.76" (121mm) of snow is typically accumulated.

What is the month with the shortest days?

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

What is the average length of the day in December?

The average day length in December is 9h and 17min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:16 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:51 pm EST.

How long on average sun shines in December?

The average sunshine duration in December in Salona, Pennsylvania, is 3.4h.

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?

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

Average temperature in December - Salona, PA
  • Average high temperature in December: 36.7°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (30.9°F).

  • Average low temperature in December: 25.9°F

The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

Average pressure in December
Salona, PA

Average pressure in December - Salona, PA
  • Average pressure in December: 30.09"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
Salona, PA

Average wind speed in December - Salona, PA
  • Average wind speed in December: 7mph

The windiest months (with the highest average wind speed) are January and April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in December
Salona, PA

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

The months with the highest relative humidity are February and December (84%).
The months with the lowest relative humidity are April, June and July (77%).

Average rainfall in December
Salona, PA

Average rainfall in December - Salona, PA
  • Average rainfall in December: 2.68"

The wettest month (with the highest rainfall) is April (3.54").
The driest month (with the least rainfall) is November (2.09").

Average rainfall days in December
Salona, PA

Average rainfall days in December - Salona, PA
  • Average rainfall days in December: 12.4 days

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is February (10.3 days).

Average snowfall in December
Salona, PA

Average snowfall in December - Salona, PA
  • Average snowfall in December: 4.76"

The month with the highest snowfall is February (7.13").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Salona, PA

Average snowfall days in December - Salona, PA
  • Average snowfall days in December: 12.2 days

The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Salona, PA
  • Average daylight in December: 9h and 2min

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 18min).

  • Average sunshine in December: 3h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

Average sunshine days in December
Salona, PA

Average sunshine days in December - Salona, PA
  • Average sunshine days in December: 10.3 days

The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is February (8.8 days).

Average UV index in December
Salona, PA

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

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

Average cloud cover in December
Salona, PA

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

The months with the most cloud cover are January and December (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 37).

Average visibility in December
Salona, PA

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

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

Salona, Pennsylvania, USA

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