December weather forecast
Leesport, PA

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Weather in December

The first month of the winter, December, is also an icy month in Leesport, Pennsylvania, with an average temperature ranging between max 40.6°F (4.8°C) and min 29.7°F (-1.3°C).

Temperature

The shift from November to December involves a decrease in the average high-temperature, dropping from a cool 50.2°F (10.1°C) to an icy 40.6°F (4.8°C). In the month of December, the average low-temperature usually rests at a subzero cold 29.7°F (-1.3°C).

Humidity

In December, the average relative humidity is 80%.

Rainfall

In Leesport, in December, it is raining for 10.4 days, with typically 2.44" (62mm) of accumulated precipitation. Throughout the year, there are 155.7 rainfall days, and 30.83" (783mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In December, it is snowing for 3.7 days. Throughout December, 1.5" (38mm) of snow is accumulated. In Leesport, during the entire year, snow falls for 21.1 days and aggregates up to 12.28" (312mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:08 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:47 pm EST.

Sunshine

In December, the average sunshine is 4.7h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. To guard against the harmful effects of the Sun, minimize exposure during midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold during December?

An average high-temperature, in December, in Leesport, is 40.6°F (4.8°C) and the average low-temperature is 29.7°F (-1.3°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in August is computed to be 86°F (30°C).

What is the average humidity in December?

In Leesport, the average relative humidity in December is 80%.

How many days does it rain in December?

In December, the rain falls for 10.4 days. Throughout December, 2.44" (62mm) of precipitation is accumulated.

How much does it snow in December?

In Leesport, during December, snow falls for 3.7 days and regularly aggregates up to 1.5" (38mm) of snow.

What is the month with the shortest days?

The month with the shortest days in Leesport is December, with an average of 9h and 18min of daylight.

What is the average length of the day in December?

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

When is the sunrise / sunset in December?

On the first day of December in Leesport, sunrise is at 7:08 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:47 pm EST.

How many hours of sunshine does Leesport have in December?

In December, the average sunshine duration is 4.7h.

What is the month with the lowest UV index?

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

What is the UV index intensity in December?

In Leesport, Pennsylvania, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Leesport, PA

Average temperature in December - Leesport, PA
  • Average high temperature in December: 40.6°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in December: 29.7°F

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

Average pressure in December
Leesport, PA

Average pressure in December - Leesport, 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
Leesport, PA

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

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in December
Leesport, PA

Average humidity in December - Leesport, PA
  • Average humidity in December: 80%

The months with the highest relative humidity are February and October (81%).
The month with the lowest relative humidity is April (76%).

Average rainfall in December
Leesport, PA

Average rainfall in December - Leesport, PA
  • Average rainfall in December: 2.44"

The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is February (2.05").

Average rainfall days in December
Leesport, PA

Average rainfall days in December - Leesport, PA
  • Average rainfall days in December: 10.4 days

The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is January (7.9 days).

Average snowfall in December
Leesport, PA

Average snowfall in December - Leesport, PA
  • Average snowfall in December: 1.5"

The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Leesport, PA

Average snowfall days in December - Leesport, PA
  • Average snowfall days in December: 3.7 days

The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Leesport, 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: 4h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in December
Leesport, PA

Average sunshine days in December - Leesport, PA
  • Average sunshine days in December: 17.9 days

The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is July (10.8 days).

Average UV index in December
Leesport, PA

Average UV index in December - Leesport, 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, March, November and December (UV index 2).

Average cloud cover in December
Leesport, PA

Average cloud cover in December - Leesport, PA
  • Average cloud cover in December: 50

The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in December
Leesport, PA

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

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

Leesport, Pennsylvania, USA

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