December weather forecast
Reliance, PA

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Weather in December

The first month of the winter, December, is also an icy month in Reliance, Pennsylvania, with an average temperature ranging between min 30.2°F (-1°C) and max 41.9°F (5.5°C).

Temperature

The beginning of December brings a slight decrease in the average high-temperature, transitioning from a fresh 50.7°F (10.4°C) in November to a cold 41.9°F (5.5°C). The temperature in Reliance lowers to an average of 30.2°F (-1°C) during December nights.

Humidity

The average relative humidity in December in Reliance is 79%.

Rainfall

In Reliance, during December, the rain falls for 10.4 days and regularly aggregates up to 3.03" (77mm) of precipitation. Throughout the year, there are 157.1 rainfall days, and 31.73" (806mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Reliance, in December, during 4.3 snowfall days, 2.48" (63mm) of snow is typically accumulated. In Reliance, during the entire year, snow falls for 26.7 days and aggregates up to 14.37" (365mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year in Reliance, Pennsylvania.
On the first day of December, sunrise is at 7:05 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:45 pm EST.

Sunshine

In Reliance, the average sunshine in December is 4.9h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: In December, the maximum UV index of 2 transforms into these recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

How cold is it in Reliance in December?

An average high-temperature, in December, in Reliance, is 41.9°F (5.5°C) and the average low-temperature is 30.2°F (-1°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is evaluated at 87.8°F (31°C).

What is the average humidity in December in Reliance?

The average relative humidity in December is 79%.

How much does it rain in Reliance in December?

In Reliance, Pennsylvania, in December, during 10.4 rainfall days, 3.03" (77mm) of precipitation is typically accumulated.

How many days does it snow in December in Reliance?

In Reliance, in December, during 4.3 snowfall days, 2.48" (63mm) of snow is typically accumulated.

What is the month with the shortest days in Reliance?

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

How many hours of daylight does Reliance have in December?

In Reliance, the average day length in December is 9h and 22min.

When are sunrise and sunset in December in Reliance?

In December, on the first day of the month, sunrise is at 7:05 am and sunset at 4:35 pm. On the last day of the month, in Reliance, sunrise is at 7:23 am and sunset at 4:45 pm EST.

How long on average sun shines in December in Reliance?

In Reliance, Pennsylvania, the average sunshine duration in December is 4.9h.

What are the months with the lowest UV index in Reliance?

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

What is the UV index intensity in December in Reliance?

In Reliance, Pennsylvania, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from 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
Reliance, PA

Average temperature in December - Reliance, PA
  • Average high temperature in December: 41.9°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in December: 30.2°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (23°F).

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Average pressure in December
Reliance, PA

Average pressure in December - Reliance, 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
Reliance, PA

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

The windiest month (with the highest average wind speed) is March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in December
Reliance, PA

Average humidity in December - Reliance, PA
  • Average humidity in December: 79%

The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are April and July (74%).

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Average rainfall in December
Reliance, PA

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

The wettest months (with the highest rainfall) are July and August (3.07").
The driest month (with the least rainfall) is September (1.85").

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Average rainfall days in December
Reliance, PA

Average rainfall days in December - Reliance, PA
  • Average rainfall days in December: 10.4 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is January (8.8 days).

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Average snowfall in December
Reliance, PA

Average snowfall in December - Reliance, PA
  • Average snowfall in December: 2.48"

The month with the highest snowfall is March (4.13").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Reliance, PA

Average snowfall days in December - Reliance, PA
  • Average snowfall days in December: 4.3 days

The month with the highest number of snowfall days is January (8.2 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
Reliance, PA

Average daylight in December / Average sunshine in December - Reliance, 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: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in December
Reliance, PA

Average sunshine days in December - Reliance, PA
  • Average sunshine days in December: 17.3 days

The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (11.9 days).

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Average UV index in December
Reliance, PA

Average UV index in December - Reliance, 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
Reliance, PA

Average cloud cover in December - Reliance, PA
  • Average cloud cover in December: 49

The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in December
Reliance, PA

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

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

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Reliance, Pennsylvania, USA

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