December weather forecast
Morgan, PA

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Weather in December

The first month of the winter, December, is also an icy month in Morgan, Pennsylvania, with temperature in the range of an average high of 39.7°F (4.3°C) and an average low of 28.4°F (-2°C).

Temperature

Transition from November to December is accompanied by a temperature drop, with average high-temperatures decreasing from a frosty 49.3°F (9.6°C) to a cold 39.7°F (4.3°C). December nights cool down to an average low-temperature of 28.4°F (-2°C).

Humidity

In Morgan, the average relative humidity in December is 83%.

Rainfall

In Morgan, Pennsylvania, in December, during 8.2 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. Throughout the year, there are 132.6 rainfall days, and 11.5" (292mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. In Morgan, during December, snow falls for 6.4 days and regularly aggregates up to 0.59" (15mm) of snow. Throughout the year, in Morgan, there are 32.5 snowfall days, and 3.66" (93mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:24 am and sunset at 4:54 pm. On the last day of December, sunrise is at 7:43 am and sunset at 5:04 pm EST.

Sunshine

In Morgan, the average sunshine in December is 3.4h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 1 in December translates into these instructions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.

Frequently asked questions

How cold does it get in Morgan in December?

During December, Morgan experiences an average high-temperature of 39.7°F (4.3°C) and a low-temperature of 28.4°F (-2°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is appraised at 87.8°F (31°C).

What is the average humidity in December?

The average relative humidity in December is 83%.

How much does it rain in December?

In Morgan, during December, the rain falls for 8.2 days and regularly aggregates up to 0.87" (22mm) of precipitation.

How many days does it snow in December?

In Morgan, in December, snow falls for 6.4 days, with typically accumulated 0.59" (15mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Morgan have in December?

In December, the average day length is 9h and 21min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:24 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:04 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration is 3.4h.

What is the month with the lowest UV index?

December is the month with the lowest UV index, with an average maximum UV index of 1.

What is the UV index reading in December?

In Morgan, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to 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
Morgan, PA

Average temperature in December - Morgan, PA
  • Average high temperature in December: 39.7°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in December: 28.4°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (21°F).

Average pressure in December
Morgan, PA

Average pressure in December - Morgan, 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
Morgan, PA

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

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity in December
Morgan, PA

Average humidity in December - Morgan, PA
  • Average humidity in December: 83%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (75%).

Average rainfall in December
Morgan, PA

Average rainfall in December - Morgan, PA
  • Average rainfall in December: 0.87"

The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is November (0.67").

Average rainfall days in December
Morgan, PA

Average rainfall days in December - Morgan, PA
  • Average rainfall days in December: 8.2 days

The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is February (6.4 days).

Average snowfall in December
Morgan, PA

Average snowfall in December - Morgan, PA
  • Average snowfall in December: 0.59"

The month with the highest snowfall is February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Morgan, PA

Average snowfall days in December - Morgan, PA
  • Average snowfall days in December: 6.4 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
Morgan, PA

Average daylight in December / Average sunshine in December - Morgan, 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 2min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in December
Morgan, PA

Average sunshine days in December - Morgan, PA
  • Average sunshine days in December: 18.5 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (12.2 days).

Average UV index in December
Morgan, PA

Average UV index in December - Morgan, PA
  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Morgan, PA

Average cloud cover in December - Morgan, PA
  • Average cloud cover in December: 64

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in December
Morgan, PA

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

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

Morgan, Pennsylvania, USA

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