December weather forecast
Linglestown, PA

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Weather in December

The first month of the winter, December, is still a cold month in Linglestown, Pennsylvania, with temperature in the range of an average high of 40.8°F (4.9°C) and an average low of 29.3°F (-1.5°C).

Temperature

In December, the average high-temperature goes from a chilly 49.8°F (9.9°C) in November to a cold 40.8°F (4.9°C). Linglestown records a steady low-temperature average of 29.3°F (-1.5°C) during December.

Humidity

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

Rainfall

In Linglestown, in December, during 8.4 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In Linglestown, during the entire year, the rain falls for 128.8 days and collects up to 15" (381mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Linglestown, in December, snow falls for 3.4 days, with typically accumulated 1.02" (26mm) of snow. Throughout the year, there are 19.2 snowfall days, and 7.52" (191mm) 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 the month, sunrise is at 7:11 am and sunset at 4:41 pm. On the last day of December, sunrise is at 7:29 am and sunset at 4:51 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 in Linglestown. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: In December, the maximum UV index of 2 suggests this advice:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. To guard against the harmful effects of the Sun, minimize exposure during midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Updated: Jun 30, 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 40.8°F (4.9°C) and the low-temperature is 29.3°F (-1.5°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in July is evaluated at 89.6°F (32°C).

What is the average humidity in December?

The average relative humidity in December is 79%.

How many days does it rain in December?

In Linglestown, in December, during 8.4 rainfall days, 1.02" (26mm) of precipitation is typically accumulated.

How many days does it snow in December in Linglestown?

In Linglestown, in December, during 3.4 snowfall days, 1.02" (26mm) 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.

What is the average length of the day in December?

The average day length in December is 9h and 21min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:11 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:51 pm EST.

How long on average sun shines in December?

In Linglestown, the average sunshine duration in December 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 Linglestown, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat from 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
Linglestown, PA

Average temperature in December - Linglestown, PA
  • Average high temperature in December: 40.8°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 (34°F).

  • Average low temperature in December: 29.3°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

Average pressure in December
Linglestown, PA

Average pressure in December - Linglestown, 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
Linglestown, PA

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

The windiest months (with the highest average wind speed) are March and April (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in December
Linglestown, PA

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

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

Average rainfall in December
Linglestown, PA

Average rainfall in December - Linglestown, PA
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is August (1.73").
The driest month (with the least rainfall) is September (0.91").

Average rainfall days in December
Linglestown, PA

Average rainfall days in December - Linglestown, PA
  • Average rainfall days in December: 8.4 days

The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (6.8 days).

Average snowfall in December
Linglestown, PA

Average snowfall in December - Linglestown, PA
  • Average snowfall in December: 1.02"

The months with the highest snowfall are January and March (2.17").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Linglestown, PA

Average snowfall days in December - Linglestown, PA
  • Average snowfall days in December: 3.4 days

The month with the highest number of snowfall days is January (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
Linglestown, PA

Average daylight in December / Average sunshine in December - Linglestown, 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: 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 30min).

Average sunshine days in December
Linglestown, PA

Average sunshine days in December - Linglestown, PA
  • Average sunshine days in December: 19.1 days

The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is July (12.3 days).

Average UV index in December
Linglestown, PA

Average UV index in December - Linglestown, 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
Linglestown, PA

Average cloud cover in December - Linglestown, PA
  • Average cloud cover in December: 51

The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in December
Linglestown, PA

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

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

Linglestown, Pennsylvania, USA

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