December weather forecast
Grandfather, NC

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Weather in December

December, the first month of the winter in Grandfather, is also a frosty month, with an average temperature fluctuating between 30.6°F (-0.8°C) and 43.7°F (6.5°C).

Temperature

The arrival of December is marked by a minor reduction in average high-temperature, sliding from a fresh 51.1°F (10.6°C) in November to a frosty 43.7°F (6.5°C). During December, an average low-temperature of 30.6°F (-0.8°C) is observed.

Humidity

February, March, May, September and December, with an average relative humidity of 80%, are the most humid months.

Rainfall

In December, the rain falls for 10.9 days. Throughout December, 2.01" (51mm) of precipitation is accumulated. Throughout the year, there are 178.4 rainfall days, and 25.39" (645mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Grandfather are January through May, October through December. The month with the most snowfall in Grandfather is December, when snow falls for 8.5 days and typically aggregates up to 4.65" (118mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 48min of daylight.
On the first day of December, sunrise is at 7:20 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 5:23 pm EST.

Sunshine

In Grandfather, the average sunshine in December is 5.4h.

UV index

The months with the lowest UV index in Grandfather, North Carolina, are January, February, November and December, with an average maximum UV index of 2. 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: The UV index of 2 during December leads to these advisories:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. To guard against the harmful effects of the Sun, minimize exposure during midday. Always opt for UVA and UVB-resistant sunglasses on radiant days. 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

Is December cold in Grandfather?

The high-temperature, in December, in Grandfather, records 43.7°F (6.5°C), while the low-temperature is 30.6°F (-0.8°C).

What is the most humid month in Grandfather?

February, March, May, September and December, with an average relative humidity of 80%, are most humid months in Grandfather, North Carolina.

What is the average humidity in December in Grandfather?

In Grandfather, the average relative humidity in December is 80%.

How many days does it rain in December in Grandfather?

In December, in Grandfather, North Carolina, the rain falls for 10.9 days. Throughout December, 2.01" (51mm) of precipitation is accumulated.

When does it snow the most in Grandfather?

The month with the most snowfall in Grandfather, North Carolina, is December, when snow falls for 8.5 days and typically aggregates up to 4.65" (118mm) of snow.

How many days does it snow in December in Grandfather?

In Grandfather, during December, snow falls for 8.5 days and regularly aggregates up to 4.65" (118mm) of snow.

What is the month with the shortest days in Grandfather?

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

What is the average length of the day in December in Grandfather?

The average day length in December in Grandfather is 9h and 45min.

When are sunrise and sunset in December in Grandfather?

In December, on the first day of the month, sunrise is at 7:20 am and sunset at 5:13 pm. On the last day of the month, in Grandfather, sunrise is at 7:38 am and sunset at 5:23 pm EST.

How many hours of sunshine does Grandfather have in December?

The average sunshine duration in December is 5.4h.

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

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Grandfather, North Carolina.

How high is the UV index in December in Grandfather?

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

Average temperature in December - Grandfather, NC
  • Average high temperature in December: 43.7°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in December: 30.6°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in December
Grandfather, NC

Average pressure in December - Grandfather, 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
Grandfather, NC

Average wind speed in December - Grandfather, NC
  • Average wind speed in December: 6.4mph

The windiest months (with the highest average wind speed) are January and February (7.1mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

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Average humidity in December
Grandfather, NC

Average humidity in December - Grandfather, NC
  • Average humidity in December: 80%

The months with the highest relative humidity are February, March, May, September and December (80%).
The months with the lowest relative humidity are June and November (77%).

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Average rainfall in December
Grandfather, NC

Average rainfall in December - Grandfather, NC
  • Average rainfall in December: 2.01"

The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is November (1.5").

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Average rainfall days in December
Grandfather, NC

Average rainfall days in December - Grandfather, NC
  • Average rainfall days in December: 10.9 days

The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is November (10.6 days).

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Average snowfall in December
Grandfather, NC

Average snowfall in December - Grandfather, NC
  • Average snowfall in December: 4.65"

The month with the highest snowfall is December (4.65").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Grandfather, NC

Average snowfall days in December - Grandfather, NC
  • Average snowfall days in December: 8.5 days

The month with the highest number of snowfall days is January (12.3 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
Grandfather, NC

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

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in December: 5h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

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Average sunshine days in December
Grandfather, NC

Average sunshine days in December - Grandfather, NC
  • Average sunshine days in December: 13.8 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is July (9 days).

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Average UV index in December
Grandfather, NC

Average UV index in December - Grandfather, NC
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in December
Grandfather, NC

Average cloud cover in December - Grandfather, NC
  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 35).

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Average visibility in December
Grandfather, NC

Average visibility in December - Grandfather, NC
  • Average visibility in December: 5mi

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

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Grandfather, North Carolina, USA

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