December weather forecast
Heaton, PA

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Weather in December

The first month of the winter, December, is still a chilly month in Heaton, Pennsylvania, with temperature in the range of an average low of 31.1°F (-0.5°C) and an average high of 42.8°F (6°C).

Temperature

With December's arrival, Heaton's weather changes as the average high-temperature falls from a cool 51.8°F (11°C) in November to a chilly 42.8°F (6°C). The nighttime temperature, during December, averages of 31.1°F (-0.5°C).

Humidity

The months with the highest humidity are February, October and December, with an average relative humidity of 78%.

Rainfall

The month with the most rainfall is December, when the rain falls for 5.8 days and typically aggregates up to 0.75" (19mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In Heaton, Pennsylvania, in December, snow falls for 1.7 days, with typically accumulated 0.28" (7mm) of snow. Throughout the year, there are 12.6 snowfall days, and 1.73" (44mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of December in Heaton, sunrise is at 7:04 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:44 pm EST.

Sunshine

In Heaton, the average sunshine in December is 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 reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 2 during December translates into the following guidance:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

How cold is December in Heaton?

The average high-temperature, in December, in Heaton, is 42.8°F (6°C), while the average low-temperature is 31.1°F (-0.5°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in August is evaluated at 89.6°F (32°C).

What are the most humid months in Heaton?

February, October and December, with an average relative humidity of 78%, are most humid months in Heaton, Pennsylvania.

What is the average humidity in December in Heaton?

The average relative humidity in December is 78%.

What is the wettest month in Heaton?

December is the month with the most rainfall in Heaton, Pennsylvania. Rain falls for 5.8 days and accumulates 0.75" (19mm) of precipitation.

How many days does it rain in December in Heaton?

In December, in Heaton, Pennsylvania, the rain falls for 5.8 days. Throughout December, 0.75" (19mm) of precipitation is accumulated.

How much does it snow in Heaton in December?

In Heaton, Pennsylvania, during December, snow falls for 1.7 days and regularly aggregates up to 0.28" (7mm) of snow.

What is the month with the shortest days in Heaton?

With an average of 9h and 24min of daylight, December has the shortest days of the year in Heaton, Pennsylvania.

How many hours of daylight does Heaton have in December?

The average day length in December in Heaton is 9h and 22min.

When are sunrise and sunset in December in Heaton?

On the first day of December, sunrise is at 7:04 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:44 pm EST.

How many hours of sunshine does Heaton have in December?

The average sunshine duration in December in Heaton is 5h.

When is the lowest UV index in Heaton?

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

What is the UV index reading in December in Heaton?

In December, the average daily maximum UV index in Heaton, Pennsylvania, 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
Heaton, PA

Average temperature in December - Heaton, PA
  • Average high temperature in December: 42.8°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in December: 31.1°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in December
Heaton, PA

Average pressure in December - Heaton, PA
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in December
Heaton, PA

Average wind speed in December - Heaton, PA
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in December
Heaton, PA

Average humidity in December - Heaton, PA
  • Average humidity in December: 78%

The months with the highest relative humidity are February, October and December (78%).
The months with the lowest relative humidity are April, July and August (72%).

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Average rainfall in December
Heaton, PA

Average rainfall in December - Heaton, PA
  • Average rainfall in December: 0.75"

The wettest month (with the highest rainfall) is December (0.75").
The driest month (with the least rainfall) is September (0.2").

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Average rainfall days in December
Heaton, PA

Average rainfall days in December - Heaton, PA
  • Average rainfall days in December: 5.8 days

The month with the highest number of rainy days is July (10.3 days).
The month with the least rainy days is January (4.3 days).

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Average snowfall in December
Heaton, PA

Average snowfall in December - Heaton, PA
  • Average snowfall in December: 0.28"

The month with the highest snowfall is February (0.43").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Heaton, PA

Average snowfall days in December - Heaton, PA
  • Average snowfall days in December: 1.7 days

The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Heaton, 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: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in December
Heaton, PA

Average sunshine days in December - Heaton, PA
  • Average sunshine days in December: 23.2 days

The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is July (17.4 days).

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Average UV index in December
Heaton, PA

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

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in December
Heaton, PA

Average cloud cover in December - Heaton, PA
  • Average cloud cover in December: 47

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in December
Heaton, PA

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

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

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Heaton, Pennsylvania, USA

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