December weather forecast
Salina, PA

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Weather in December

December, the first month of the winter in Salina, is still a cold month, with an average temperature varying between 27.3°F (-2.6°C) and 38.7°F (3.7°C).

Temperature

December's arrival coincides with a drop in the average high-temperature, decreasing from November's frosty 48.4°F (9.1°C) to a wintry 38.7°F (3.7°C). Salina's nights in December experience an average temperature drop to a freezing cold 27.3°F (-2.6°C).

Humidity

The average relative humidity in December is 84%.

Rainfall

In December, the rain falls for 10.1 days. Throughout December, 1.38" (35mm) of precipitation is accumulated. Throughout the year, there are 147.1 rainfall days, and 18.54" (471mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Salina, Pennsylvania, are January through May, October through December. In Salina, Pennsylvania, during December, snow falls for 9.1 days and regularly aggregates up to 2.2" (56mm) of snow. In Salina, during the entire year, snow falls for 45.9 days and aggregates up to 11.3" (287mm) 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 7:22 am and sunset at 4:51 pm. On the last day of December, in Salina, sunrise is at 7:41 am and sunset at 5:01 pm EST.

Sunshine

In Salina, the average sunshine in December is 3.1h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.
Note: A typical high UV index of 1 in December suggests the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
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Frequently asked questions

How cold is it in Salina in December?

The high-temperature in Salina, Pennsylvania, during December is 38.7°F (3.7°C) and the low-temperature is 27.3°F (-2.6°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, is calculated to be 86°F (30°C).

What is the average humidity in December in Salina?

In December, the average relative humidity is 84%.

How many days does it rain in December in Salina?

In Salina, Pennsylvania, in December, it is raining for 10.1 days, with typically 1.38" (35mm) of accumulated precipitation.

How many days does it snow in December in Salina?

In Salina, in December, during 9.1 snowfall days, 2.2" (56mm) of snow is typically accumulated.

What is the month with the shortest days in Salina?

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

How many hours of daylight does Salina have in December?

The average day length in December is 9h and 20min.

When are sunrise and sunset in December in Salina?

In December, on the first day of the month, sunrise is at 7:22 am and sunset at 4:51 pm. On the last day of the month, in Salina, sunrise is at 7:41 am and sunset at 5:01 pm EST.

How many hours of sunshine does Salina have in December?

In Salina, Pennsylvania, the average sunshine duration in December is 3.1h.

What is the month with the lowest UV index in Salina?

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

How high is the UV index in December in Salina?

In December, the average daily maximum UV index is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unsafe 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
Salina, PA

Average temperature in December - Salina, PA
  • Average high temperature in December: 38.7°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in December: 27.3°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure in December
Salina, PA

Average pressure in December - Salina, PA
  • Average pressure in December: 30.1"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).

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Average wind speed in December
Salina, PA

Average wind speed in December - Salina, PA
  • Average wind speed in December: 7.6mph

The windiest month (with the highest average wind speed) is January (8.2mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in December
Salina, PA

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

The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, July and August (77%).

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Average rainfall in December
Salina, PA

Average rainfall in December - Salina, PA
  • Average rainfall in December: 1.38"

The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is November (1.02").

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Average rainfall days in December
Salina, PA

Average rainfall days in December - Salina, PA
  • Average rainfall days in December: 10.1 days

The month with the highest number of rainy days is May (17.6 days).
The months with the least rainy days are January and February (7.8 days).

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Average snowfall in December
Salina, PA

Average snowfall in December - Salina, PA
  • Average snowfall in December: 2.2"

The month with the highest snowfall is February (2.8").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Salina, PA

Average snowfall days in December - Salina, PA
  • Average snowfall days in December: 9.1 days

The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Salina, 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 18min).

  • Average sunshine in December: 3h and 1min

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 48min).

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Average sunshine days in December
Salina, PA

Average sunshine days in December - Salina, PA
  • Average sunshine days in December: 14 days

The month with the most sunshine days is November (18.1 days).
The month with the least sunshine days is May (10 days).

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Average UV index in December
Salina, PA

Average UV index in December - Salina, 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).

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Average cloud cover in December
Salina, PA

Average cloud cover in December - Salina, PA
  • Average cloud cover in December: 67

The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in December
Salina, PA

Average visibility in December - Salina, 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, February, March, May, June, July, August, September, October and December (5mi).

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Salina, Pennsylvania, USA

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