December weather forecast
Adamsburg, PA

Share

Weather in December

The first month of the winter, December, is still a cold month in Adamsburg, Pennsylvania, with temperature in the range of an average low of 27.9°F (-2.3°C) and an average high of 39°F (3.9°C).

Temperature

In Adamsburg, the beginning of December is marked by a lowered average high-temperature, shifting from November's frosty 48.7°F (9.3°C) to a cold 39°F (3.9°C). During the month of December, an average temperature of 27.9°F (-2.3°C) is noted during the nights.

Humidity

In Adamsburg, Pennsylvania, the average relative humidity in December is 84%.

Rainfall

In Adamsburg, in December, during 13.5 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. Throughout the year, there are 186 rainfall days, and 34.84" (885mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Adamsburg, Pennsylvania, in December, snow falls for 12.8 days, with typically accumulated 5.67" (144mm) of snow. Throughout the year, there are 63.3 snowfall days, and 27.44" (697mm) of snow is accumulated.

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 7:22 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:02 pm EST.

Sunshine

The average sunshine in December is 3.5h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: The UV index of 1 during December leads to these advisories:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.

Frequently asked questions

How cold does it get in December?

December temperatures in Adamsburg vary between a high-temperature of 39°F (3.9°C) and a low-temperature of 27.9°F (-2.3°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is estimated at 86°F (30°C).

What is the average humidity in December?

In Adamsburg, the average relative humidity in December is 84%.

How much does it rain in December?

In December, the rain falls for 13.5 days. Throughout December, 3.07" (78mm) of precipitation is accumulated.

How much does it snow in December?

In Adamsburg, in December, during 12.8 snowfall days, 5.67" (144mm) of snow is typically accumulated.

What is the month with the shortest days?

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

How many hours of daylight does Adamsburg have in December?

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 7:22 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:02 pm EST.

How long on average sun shines in December?

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.

How high is the UV index in December?

In December, the average daily maximum UV index is 1. A UV Index reading of 2, and below, represents a low health threat from exposure to the Sun's 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
Adamsburg, PA

Average temperature in December - Adamsburg, PA
  • Average high temperature in December: 39°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.9°F).

  • Average low temperature in December: 27.9°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in December
Adamsburg, PA

Average pressure in December - Adamsburg, 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
Adamsburg, PA

Average wind speed in December - Adamsburg, PA
  • Average wind speed in December: 7.9mph

The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in December
Adamsburg, PA

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

The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, July and August (77%).

Average rainfall in December
Adamsburg, PA

Average rainfall in December - Adamsburg, PA
  • Average rainfall in December: 3.07"

The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is November (2.01").

Average rainfall days in December
Adamsburg, PA

Average rainfall days in December - Adamsburg, PA
  • Average rainfall days in December: 13.5 days

The month with the highest number of rainy days is May (20.9 days).
The month with the least rainy days is January (9.8 days).

Average snowfall in December
Adamsburg, PA

Average snowfall in December - Adamsburg, PA
  • Average snowfall in December: 5.67"

The month with the highest snowfall is January (6.65").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Adamsburg, PA

Average snowfall days in December - Adamsburg, PA
  • Average snowfall days in December: 12.8 days

The month with the highest number of snowfall days is January (17.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Adamsburg, 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: 3h and 0min).

Average sunshine days in December
Adamsburg, PA

Average sunshine days in December - Adamsburg, PA
  • Average sunshine days in December: 8.8 days

The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is January (6.4 days).

Average UV index in December
Adamsburg, PA

Average UV index in December - Adamsburg, 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
Adamsburg, PA

Average cloud cover in December - Adamsburg, PA
  • Average cloud cover in December: 65

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in December
Adamsburg, PA

Average visibility in December - Adamsburg, PA
  • Average visibility in December: 5mi

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).

Adamsburg, Pennsylvania, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location