December weather forecast
McConnellstown, PA

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Weather in December

The first month of the winter, December, is also a wintry month in McConnellstown, Pennsylvania, with an average temperature ranging between min 27.5°F (-2.5°C) and max 38.7°F (3.7°C).

Temperature

The shift to December brings a decrease in the average high-temperature, falling from a chilly 48.2°F (9°C) in November to a wintry 38.7°F (3.7°C). During December, the average low-temperature is a subzero cold 27.5°F (-2.5°C).

Humidity

In McConnellstown, the average relative humidity in December is 81%.

Rainfall

In McConnellstown, Pennsylvania, in December, during 8.5 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. In McConnellstown, during the entire year, the rain falls for 128.8 days and collects up to 16.34" (415mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In December, in McConnellstown, it is snowing for 4.8 days. Throughout December, 1.38" (35mm) of snow is accumulated. In McConnellstown, during the entire year, snow falls for 29.1 days and aggregates up to 10.08" (256mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year in McConnellstown.
On the first day of the month, sunrise is at 7:16 am and sunset at 4:46 pm. On the last day of December, in McConnellstown, sunrise is at 7:35 am and sunset at 4:55 pm EST.

Sunshine

In December, the average sunshine is 4.1h.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, the UV index of 2 transforms into the following advice:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Updated: Feb 13, 2024 | Published by: Weather U.S. | About Us / Weather Forecasting / Data Sources

Frequently asked questions

How cold does it get in McConnellstown in December?

In December, in McConnellstown, the average high-temperature is 38.7°F (3.7°C), and the average low-temperature is 27.5°F (-2.5°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 86°F (30°C).

What is the average humidity in December in McConnellstown?

The average relative humidity in December is 81%.

How much does it rain in McConnellstown in December?

In McConnellstown, in December, during 8.5 rainfall days, 1.3" (33mm) of precipitation is typically accumulated.

How many days does it snow in December in McConnellstown?

In December, in McConnellstown, Pennsylvania, it is snowing for 4.8 days. Throughout December, 1.38" (35mm) of snow is accumulated.

What is the month with the shortest days in McConnellstown?

With an average of 9h and 18min of daylight, December has the shortest days of the year in McConnellstown, Pennsylvania.

How many hours of daylight does McConnellstown have in December?

In McConnellstown, the average day length in December is 9h and 20min.

When are sunrise and sunset in December in McConnellstown?

In December, on the first day of the month, sunrise is at 7:16 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 4:55 pm EST.

How long on average sun shines in December in McConnellstown?

The average sunshine duration in December is 4.1h.

When is the lowest UV index in McConnellstown?

The months with the lowest UV index in McConnellstown are January through March, October through December, with an average maximum UV index of 2.

What is the UV index reading in December in McConnellstown?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents 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
McConnellstown, PA

Average temperature in December - McConnellstown, PA
  • Average high temperature in December: 38.7°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (33.1°F).

  • Average low temperature in December: 27.5°F

The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure in December
McConnellstown, PA

Average pressure in December - McConnellstown, PA
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
McConnellstown, PA

Average wind speed in December - McConnellstown, PA
  • Average wind speed in December: 7.3mph

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in December
McConnellstown, PA

Average humidity in December - McConnellstown, PA
  • Average humidity in December: 81%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is July (75%).

Average rainfall in December
McConnellstown, PA

Average rainfall in December - McConnellstown, PA
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is November (1.02").

Average rainfall days in December
McConnellstown, PA

Average rainfall days in December - McConnellstown, PA
  • Average rainfall days in December: 8.5 days

The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is February (6.4 days).

Average snowfall in December
McConnellstown, PA

Average snowfall in December - McConnellstown, PA
  • Average snowfall in December: 1.38"

The month with the highest snowfall is February (3.23").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
McConnellstown, PA

Average snowfall days in December - McConnellstown, PA
  • Average snowfall days in December: 4.8 days

The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - McConnellstown, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in December
McConnellstown, PA

Average sunshine days in December - McConnellstown, PA
  • Average sunshine days in December: 18.1 days

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (13.3 days).

Average UV index in December
McConnellstown, PA

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

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in December
McConnellstown, PA

Average cloud cover in December - McConnellstown, PA
  • Average cloud cover in December: 56

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 35).

Average visibility in December
McConnellstown, PA

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

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

McConnellstown, Pennsylvania, USA

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