December weather forecast
Melcroft, PA

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Weather in December

The first month of the winter, December, is still a cold month in Melcroft, Pennsylvania, with temperature in the range of an average high of 38.5°F (3.6°C) and an average low of 27.3°F (-2.6°C).

Temperature

December brings a decrease in the average high-temperature, shifting from a chilly 47.8°F (8.8°C) in November to an icy 38.5°F (3.6°C). December witnesses an average nighttime temperature of 27.3°F (-2.6°C).

Humidity

The average relative humidity in December in Melcroft is 85%.

Rainfall

In December, the rain falls for 10.8 days. Throughout December, 3.03" (77mm) of precipitation is accumulated. Throughout the year, in Melcroft, there are 179.1 rainfall days, and 33.43" (849mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Melcroft, Pennsylvania, during December, snow falls for 12.5 days and regularly aggregates up to 6.57" (167mm) of snow. Throughout the year, there are 63.4 snowfall days, and 34.17" (868mm) of snow is accumulated.

Daylight

The month with the shortest days in Melcroft is December, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:20 am and sunset at 4:52 pm. On the last day of December, sunrise is at 7:39 am and sunset at 5:02 pm EST.

Sunshine

In Melcroft, the average sunshine in December is 3.5h.

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 low health risk from unsafe exposure to UV radiation for the average person.
Note: In December, a regular UV index of 2 translates into these guidelines:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Boost your sun resistance with garments that are densely woven yet spacious. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

In Melcroft, in December, the average high-temperature is 38.5°F (3.6°C), and the average low-temperature is 27.3°F (-2.6°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is estimated at 86°F (30°C).

What is the average humidity in December?

In Melcroft, the average relative humidity in December is 85%.

How many days does it rain in December?

In Melcroft, during December, the rain falls for 10.8 days and regularly aggregates up to 3.03" (77mm) of precipitation.

How much does it snow in December?

In Melcroft, in December, snow falls for 12.5 days, with typically accumulated 6.57" (167mm) 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 Melcroft have in December?

In December, the average day length is 9h and 23min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:20 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 5:02 pm EST.

How many hours of sunshine does Melcroft have in December?

In Melcroft, the average sunshine duration in December is 3.5h.

What are the months with the lowest UV index?

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

What is the UV index reading in December?

In December, the average daily maximum UV index is 2. A UV Index value 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
Melcroft, PA

Average temperature in December - Melcroft, PA
  • Average high temperature in December: 38.5°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (32.4°F).

  • Average low temperature in December: 27.3°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 (19.9°F).

Average pressure in December
Melcroft, PA

Average pressure in December - Melcroft, PA
  • Average pressure in December: 30.11"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
Melcroft, PA

Average wind speed in December - Melcroft, PA
  • Average wind speed in December: 8.3mph

The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in December
Melcroft, PA

Average humidity in December - Melcroft, PA
  • Average humidity in December: 85%

The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April, June, July and August (78%).

Average rainfall in December
Melcroft, PA

Average rainfall in December - Melcroft, PA
  • Average rainfall in December: 3.03"

The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is November (1.97").

Average rainfall days in December
Melcroft, PA

Average rainfall days in December - Melcroft, PA
  • Average rainfall days in December: 10.8 days

The month with the highest number of rainy days is May (22.6 days).
The month with the least rainy days is January (8.4 days).

Average snowfall in December
Melcroft, PA

Average snowfall in December - Melcroft, PA
  • Average snowfall in December: 6.57"

The month with the highest snowfall is January (7.99").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Melcroft, PA

Average snowfall days in December - Melcroft, PA
  • Average snowfall days in December: 12.5 days

The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Melcroft, 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 3min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in December
Melcroft, PA

Average sunshine days in December - Melcroft, PA
  • Average sunshine days in December: 10.1 days

The month with the most sunshine days is November (14.6 days).
The month with the least sunshine days is May (7.4 days).

Average UV index in December
Melcroft, PA

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

The month with the highest UV index is July (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
Melcroft, PA

Average cloud cover in December - Melcroft, PA
  • Average cloud cover in December: 65

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 37).

Average visibility in December
Melcroft, PA

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

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).

Melcroft, Pennsylvania, USA

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