December weather forecast
Garland, PA

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Weather in December

December, the first month of the winter in Garland, is also an icy month, with an average temperature fluctuating between 34.7°F (1.5°C) and 25.2°F (-3.8°C).

Temperature

As November transitions into December, Garland sees a drop in the average high-temperature, transitioning from a frosty 44.1°F (6.7°C) to a cold 34.7°F (1.5°C). The average temperature during December nights is registered at a freezing cold 25.2°F (-3.8°C).

Humidity

In Garland, the average relative humidity in December is 88%.

Rainfall

In Garland, Pennsylvania, in December, it is raining for 10.2 days, with typically 1.81" (46mm) of accumulated precipitation. Throughout the year, there are 162.1 rainfall days, and 21.81" (554mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. December is the month with the most snowfall. Snow falls for 18.1 days and accumulates 6.77" (172mm) of snow.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year in Garland, Pennsylvania.
On the first day of December, sunrise is at 7:26 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 4:57 pm EST.

Sunshine

In December, the average sunshine is 2.3h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 1 during December leads to these instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.

Frequently asked questions

How cold is it in December?

The high-temperature, in December, in Garland, is 34.7°F (1.5°C), while the low-temperature averages to 25.2°F (-3.8°C).

What is the average humidity in December?

In December, the average relative humidity is 88%.

How many days does it rain in December?

In Garland, during December, the rain falls for 10.2 days and regularly aggregates up to 1.81" (46mm) of precipitation.

When does it snow the most?

The month with the most snowfall is December, when snow falls for 18.1 days and typically aggregates up to 6.77" (172mm) of snow.

How much does it snow in December?

In December, it is snowing for 18.1 days. Throughout December, 6.77" (172mm) of snow is accumulated.

What is the month with the shortest days?

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

How many hours of daylight does Garland have in December?

The average day length in December is 9h and 12min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:26 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 4:57 pm EST.

How many hours of sunshine does Garland have in December?

In December, the average sunshine duration is 2.3h.

What are the months with the lowest UV index?

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

What is the UV index reading in December?

The average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health risk 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
Garland, PA

Average temperature in December - Garland, PA
  • Average high temperature in December: 34.7°F

The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (28.2°F).

  • Average low temperature in December: 25.2°F

The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

Average pressure in December
Garland, PA

Average pressure in December - Garland, PA
  • Average pressure in December: 30.08"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Garland, PA

Average wind speed in December - Garland, PA
  • Average wind speed in December: 8.6mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in December
Garland, PA

Average humidity in December - Garland, PA
  • Average humidity in December: 88%

The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (80%).

Average rainfall in December
Garland, PA

Average rainfall in December - Garland, PA
  • Average rainfall in December: 1.81"

The wettest month (with the highest rainfall) is April (2.52").
The driest month (with the least rainfall) is March (1.42").

Average rainfall days in December
Garland, PA

Average rainfall days in December - Garland, PA
  • Average rainfall days in December: 10.2 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (7.3 days).

Average snowfall in December
Garland, PA

Average snowfall in December - Garland, PA
  • Average snowfall in December: 6.77"

The month with the highest snowfall is December (6.77").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Garland, PA

Average snowfall days in December - Garland, PA
  • Average snowfall days in December: 18.1 days

The month with the highest number of snowfall days is January (22 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

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

  • Average sunshine in December: 2h and 2min

The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 6min).

Average sunshine days in December
Garland, PA

Average sunshine days in December - Garland, PA
  • Average sunshine days in December: 6.6 days

The month with the most sunshine days is September (12.9 days).
The month with the least sunshine days is January (5.1 days).

Average UV index in December
Garland, PA

Average UV index in December - Garland, 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 and December (UV index 1).

Average cloud cover in December
Garland, PA

Average cloud cover in December - Garland, PA
  • Average cloud cover in December: 77

The month with the most cloud cover is January (Cloud cover 80).
The months with the least cloud cover are July and August (Cloud cover 40).

Average visibility in December
Garland, PA

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

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

Garland, Pennsylvania, USA

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