December weather forecast
Airville, PA

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Weather in December

December, the first month of the winter in Airville, is also a wintry month, with an average temperature fluctuating between 30°F (-1.1°C) and 42.1°F (5.6°C).

Temperature

December brings a decrease in the average high-temperature, falling from November's fresh 51.3°F (10.7°C) to a cold 42.1°F (5.6°C). The temperature dips to an average of 30°F (-1.1°C) during December nights.

Humidity

In December, the average relative humidity is 79%.

Rainfall

In Airville, in December, during 10.7 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. In Airville, during the entire year, the rain falls for 153.4 days and collects up to 28.27" (718mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In December, it is snowing for 3.5 days. Throughout December, 1.22" (31mm) of snow is accumulated. In Airville, during the entire year, snow falls for 20.8 days and aggregates up to 11.46" (291mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:08 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:51 pm EST.

Sunshine

The average sunshine in December is 4.7h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index, 2 in December, converts into 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. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

The high-temperature during December is 42.1°F (5.6°C) and the low-temperature is 30°F (-1.1°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 86°F (30°C).

What is the average humidity in December?

In Airville, the average relative humidity in December is 79%.

How much does it rain in December?

In Airville, during December, the rain falls for 10.7 days and regularly aggregates up to 2.09" (53mm) of precipitation.

How much does it snow in December?

In December, it is snowing for 3.5 days. Throughout December, 1.22" (31mm) of snow is accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

How many hours of daylight does Airville have in December?

In December, the average day length is 9h and 24min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:08 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:51 pm EST.

How many hours of sunshine does Airville have in December?

In Airville, Pennsylvania, the average sunshine duration in December is 4.7h.

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

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

How high is the UV index in December?

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

Average temperature in December - Airville, PA
  • Average high temperature in December: 42.1°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 (35.4°F).

  • Average low temperature in December: 30°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

Average pressure in December
Airville, PA

Average pressure in December - Airville, 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 (29.94"Hg).

Average wind speed in December
Airville, PA

Average wind speed in December - Airville, PA
  • Average wind speed in December: 8.4mph

The windiest month (with the highest average wind speed) is March (9mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in December
Airville, PA

Average humidity in December - Airville, PA
  • Average humidity in December: 79%

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is April (76%).

Average rainfall in December
Airville, PA

Average rainfall in December - Airville, PA
  • Average rainfall in December: 2.09"

The wettest month (with the highest rainfall) is August (3.35").
The driest months (with the least rainfall) are February and September (1.89").

Average rainfall days in December
Airville, PA

Average rainfall days in December - Airville, PA
  • Average rainfall days in December: 10.7 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (8 days).

Average snowfall in December
Airville, PA

Average snowfall in December - Airville, PA
  • Average snowfall in December: 1.22"

The month with the highest snowfall is March (3.66").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Airville, PA

Average snowfall days in December - Airville, PA
  • Average snowfall days in December: 3.5 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in December
Airville, PA

Average sunshine days in December - Airville, PA
  • Average sunshine days in December: 17.1 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in December
Airville, PA

Average UV index in December - Airville, PA
  • Average UV index in December: 2

The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Airville, PA

Average cloud cover in December - Airville, PA
  • Average cloud cover in December: 49

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in December
Airville, PA

Average visibility in December - Airville, PA
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, June, July, October, November and December (6mi).
The months with the lowest visibility are May, August and September (5mi).

Airville, Pennsylvania, USA

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