December weather forecast
Merrittstown, PA

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Weather in December

The first month of the winter, December, is also a wintry month in Merrittstown, Pennsylvania, with an average temperature varying between 40.1°F (4.5°C) and 28.8°F (-1.8°C).

Temperature

Merrittstown's weather changes with the onset of December, slightly falling from a cool 50°F (10°C) in November to an icy 40.1°F (4.5°C). December in Merrittstown is noted for a mean low-temperature of 28.8°F (-1.8°C).

Humidity

The average relative humidity in December in Merrittstown is 83%.

Rainfall

In Merrittstown, during December, the rain falls for 5 days and regularly aggregates up to 0.51" (13mm) of precipitation. Throughout the year, in Merrittstown, there are 82.6 rainfall days, and 6.1" (155mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall in Merrittstown. The months with the most snowfall in Merrittstown are February and December, with an average 0.35" (9mm) of accumulated snow.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:22 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:04 pm EST.

Sunshine

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

UV index

The months with the lowest UV index in Merrittstown are January through March, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
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Frequently asked questions

How cold is it in Merrittstown in December?

In Merrittstown, in December, the average high-temperature is 40.1°F (4.5°C), and the average low-temperature is 28.8°F (-1.8°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is evaluated at 87.8°F (31°C).

What is the average humidity in December in Merrittstown?

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

How many days does it rain in December in Merrittstown?

In Merrittstown, Pennsylvania, in December, during 5 rainfall days, 0.51" (13mm) of precipitation is typically accumulated.

What is the snowiest month in Merrittstown?

The months with the most snowfall in Merrittstown are February and December, with an average 0.35" (9mm) of accumulated snow.

How many days does it snow in December in Merrittstown?

In Merrittstown, in December, snow falls for 3.6 days, with typically accumulated 0.35" (9mm) of snow.

What is the month with the shortest days in Merrittstown?

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

How many hours of daylight does Merrittstown have in December?

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

When are sunrise and sunset in December in Merrittstown?

On the first day of December in Merrittstown, Pennsylvania, sunrise is at 7:22 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:04 pm EST.

How long on average sun shines in December in Merrittstown?

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

What is the month with the lowest UV index in Merrittstown?

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

What is the UV index intensity in December in Merrittstown?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health 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
Merrittstown, PA

Average temperature in December - Merrittstown, PA
  • Average high temperature in December: 40.1°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34.3°F).

  • Average low temperature in December: 28.8°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

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Average pressure in December
Merrittstown, PA

Average pressure in December - Merrittstown, 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).

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Average wind speed in December
Merrittstown, PA

Average wind speed in December - Merrittstown, PA
  • Average wind speed in December: 7.2mph

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

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Average humidity in December
Merrittstown, PA

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

The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are April, July, August and November (77%).

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Average rainfall in December
Merrittstown, PA

Average rainfall in December - Merrittstown, PA
  • Average rainfall in December: 0.51"

The wettest month (with the highest rainfall) is May (0.71").
The driest month (with the least rainfall) is September (0.28").

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Average rainfall days in December
Merrittstown, PA

Average rainfall days in December - Merrittstown, PA
  • Average rainfall days in December: 5 days

The month with the highest number of rainy days is July (9.8 days).
The month with the least rainy days is February (4 days).

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Average snowfall in December
Merrittstown, PA

Average snowfall in December - Merrittstown, PA
  • Average snowfall in December: 0.35"

The months with the highest snowfall are February and December (0.35").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Merrittstown, PA

Average snowfall days in December - Merrittstown, PA
  • Average snowfall days in December: 3.6 days

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Merrittstown, 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 August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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Average sunshine days in December
Merrittstown, PA

Average sunshine days in December - Merrittstown, PA
  • Average sunshine days in December: 22.4 days

The month with the most sunshine days is November (23.2 days).
The month with the least sunshine days is June (17.3 days).

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Average UV index in December
Merrittstown, PA

Average UV index in December - Merrittstown, 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, October, November and December (UV index 2).

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Average cloud cover in December
Merrittstown, PA

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

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in December
Merrittstown, PA

Average visibility in December - Merrittstown, 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).

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Merrittstown, Pennsylvania, USA

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