December weather forecast
Marlin, PA

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Weather in December

December, the first month of the winter in Marlin, is still a cold month, with temperature in the range of an average high of 38.8°F (3.8°C) and an average low of 27.9°F (-2.3°C).

Temperature

Marlin's December weather comes with a decrease in average high-temperatures, moving from a frosty 47.8°F (8.8°C) in November to a cold 38.8°F (3.8°C). Throughout December, an average low-temperature of 27.9°F (-2.3°C) is expected.

Humidity

The average relative humidity in December is 81%.

Rainfall

In Marlin, in December, it is raining for 9.5 days, with typically 1.89" (48mm) of accumulated precipitation. In Marlin, during the entire year, the rain falls for 146 days and collects up to 26.42" (671mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Marlin, during December, snow falls for 3.1 days and regularly aggregates up to 1.46" (37mm) of snow. In Marlin, during the entire year, snow falls for 23 days and aggregates up to 13.46" (342mm) 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 in Marlin, sunrise is at 7:10 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:47 pm EST.

Sunshine

In December, the average sunshine is 4.5h.

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 of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 2 during December translates into the following directions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.

Frequently asked questions

How cold is December?

In December, the average high-temperature and low-temperature are 38.8°F (3.8°C) and 27.9°F (-2.3°C) respectively. In July, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 87.8°F (31°C).

What is the average humidity in December?

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

How many days does it rain in December?

In Marlin, during December, the rain falls for 9.5 days and regularly aggregates up to 1.89" (48mm) of precipitation.

How many days does it snow in December?

In December, it is snowing for 3.1 days. Throughout December, 1.46" (37mm) of snow is accumulated.

What is the month with the shortest days?

With an average of 9h and 18min 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 19min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:10 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:47 pm EST.

How long on average sun shines in December?

The average sunshine duration in December in Marlin is 4.5h.

What are the months 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.

How high is the UV index in December?

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health 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
Marlin, PA

Average temperature in December - Marlin, PA
  • Average high temperature in December: 38.8°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (32.7°F).

  • Average low temperature in December: 27.9°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure in December
Marlin, PA

Average pressure in December - Marlin, 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
Marlin, PA

Average wind speed in December - Marlin, PA
  • Average wind speed in December: 7.7mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in December
Marlin, PA

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

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (77%).

Average rainfall in December
Marlin, PA

Average rainfall in December - Marlin, PA
  • Average rainfall in December: 1.89"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is February (1.69").

Average rainfall days in December
Marlin, PA

Average rainfall days in December - Marlin, PA
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (5.7 days).

Average snowfall in December
Marlin, PA

Average snowfall in December - Marlin, PA
  • Average snowfall in December: 1.46"

The month with the highest snowfall is March (3.86").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Marlin, PA

Average snowfall days in December - Marlin, PA
  • Average snowfall days in December: 3.1 days

The month with the highest number of snowfall days is February (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
Marlin, PA

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

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 24min).

Average sunshine days in December
Marlin, PA

Average sunshine days in December - Marlin, PA
  • Average sunshine days in December: 18.8 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in December
Marlin, PA

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

The months with the highest UV index are 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
Marlin, PA

Average cloud cover in December - Marlin, PA
  • Average cloud cover in December: 53

The months with the most cloud cover are February and December (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in December
Marlin, PA

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

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

Marlin, Pennsylvania, USA

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