December weather forecast
Union Mills, NC

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Weather in December

December, the first month of the winter in Union Mills, is still a cool month, with an average temperature fluctuating between 36°F (2.2°C) and 50.9°F (10.5°C).

Temperature

With the arrival of December, Union Mills experiences a modest decline in average high-temperatures, transitioning from a mild 58.5°F (14.7°C) in November to a fresh 50.9°F (10.5°C). An average low-temperature of 36°F (2.2°C) marks the nights throughout December.

Humidity

The most humid month in Union Mills is December, with an average relative humidity of 76%.

Rainfall

The month with the most rainfall is December, when the rain falls for 11.2 days and typically aggregates up to 3.39" (86mm) of precipitation.

Snowfall

Months with snowfall in Union Mills are January through March, November and December. December is the month with the most snowfall. Snow falls for 0.7 days and accumulates 2.52" (64mm) of snow.

Daylight

The month with the shortest days in Union Mills is December, with an average of 9h and 48min of daylight.
On the first day of the month, sunrise is at 7:19 am and sunset at 5:15 pm. On the last day of December, sunrise is at 7:36 am and sunset at 5:25 pm EST.

Sunshine

December has the least sunshine of the year in Union Mills, with an average of 5.5h of sunshine.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Union Mills. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In December, a regular UV index of 2 translates into these guidelines:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. To protect against the Sun's most potent rays, avoid direct exposure around midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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Frequently asked questions

What is the temperature in December in Union Mills?

The average high-temperature and low-temperature during December are 50.9°F (10.5°C) and 36°F (2.2°C) respectively. In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is appraised at 86°F (30°C).

What is the most humid month in Union Mills?

December is the most humid month, with an average relative humidity of 76%.

What is the average humidity in December in Union Mills?

In December, the average relative humidity is 76%.

What is the wettest month in Union Mills?

The month with the most rainfall in Union Mills is December, when the rain falls for 11.2 days and typically aggregates up to 3.39" (86mm) of precipitation.

How many days does it rain in December in Union Mills?

In Union Mills, in December, it is raining for 11.2 days, with typically 3.39" (86mm) of accumulated precipitation.

When does it snow the most in Union Mills?

The month with the most snowfall is December, when snow falls for 0.7 days and typically aggregates up to 2.52" (64mm) of snow.

How much does it snow in Union Mills in December?

In December, in Union Mills, it is snowing for 0.7 days. Throughout December, 2.52" (64mm) of snow is accumulated.

What is the month with the shortest days in Union Mills?

December has the shortest days of the year in Union Mills, North Carolina, with an average of 9h and 48min of daylight.

How many hours of daylight does Union Mills have in December?

In December, the average day length in Union Mills is 9h and 49min.

What time are sunrise and sunset in December in Union Mills?

In December, on the first day of the month, sunrise is at 7:19 am and sunset at 5:15 pm. On the last day of the month, in Union Mills, sunrise is at 7:36 am and sunset at 5:25 pm EST.

What is the month with the least sunshine in Union Mills?

December has the least sunshine of the year, with an average of 5.5h of sunshine.

How long on average sun shines in December in Union Mills?

In Union Mills, North Carolina, the average sunshine duration in December is 5.5h.

When is the lowest UV index in Union Mills?

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

What is the UV index reading in December in Union Mills?

In Union Mills, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health threat 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
Union Mills, NC

Average temperature in December - Union Mills, NC
  • Average high temperature in December: 50.9°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (46.9°F).

  • Average low temperature in December: 36°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).

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Average pressure in December
Union Mills, NC

Average pressure in December - Union Mills, NC
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

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Average wind speed in December
Union Mills, NC

Average wind speed in December - Union Mills, NC
  • Average wind speed in December: 5mph

The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

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Average humidity in December
Union Mills, NC

Average humidity in December - Union Mills, NC
  • Average humidity in December: 76%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in December
Union Mills, NC

Average rainfall in December - Union Mills, NC
  • Average rainfall in December: 3.39"

The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (1.65").

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Average rainfall days in December
Union Mills, NC

Average rainfall days in December - Union Mills, NC
  • Average rainfall days in December: 11.2 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is November (9.5 days).

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Average snowfall in December
Union Mills, NC

Average snowfall in December - Union Mills, NC
  • Average snowfall in December: 2.52"

The month with the highest snowfall is December (2.52").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Union Mills, NC

Average snowfall days in December - Union Mills, NC
  • Average snowfall days in December: 0.7 days

The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Union Mills, NC

Average daylight in December / Average sunshine in December - Union Mills, NC
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in December: 5h and 3min

The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in December
Union Mills, NC

Average sunshine days in December - Union Mills, NC
  • Average sunshine days in December: 18.8 days

The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is July (11.5 days).

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Average UV index in December
Union Mills, NC

Average UV index in December - Union Mills, NC
  • 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 and December (UV index 2).

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Average cloud cover in December
Union Mills, NC

Average cloud cover in December - Union Mills, NC
  • Average cloud cover in December: 40

The months with the most cloud cover are February, March and December (Cloud cover 40).
The month with the least cloud cover is June (Cloud cover 27).

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Average visibility in December
Union Mills, NC

Average visibility in December - Union Mills, NC
  • Average visibility in December: 6mi

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

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Union Mills, North Carolina, USA

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