December weather forecast
Shelby, NC

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Weather in December

The first month of the winter, December, is still a cool month in Shelby, North Carolina, with an average temperature fluctuating between 52.2°F (11.2°C) and 37°F (2.8°C).

Temperature

Transition into December subtly marks a drop in the average high-temperature, moderately moving from a moderate 58.6°F (14.8°C) in November to a fresh 52.2°F (11.2°C). December witnesses an average nighttime temperature of 37°F (2.8°C).

Humidity

The months with the highest humidity in Shelby are May and December, with an average relative humidity of 76%.

Rainfall

The month with the most rainfall is December, when the rain falls for 11.5 days and typically aggregates up to 3.46" (88mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. December is the month with the most snowfall. Snow falls for 0.7 days and accumulates 2.36" (60mm) of snow.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:17 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:24 pm EST.

Sunshine

With an average of 5.4h of sunshine, December has the least sunshine of the year.

UV index

January 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 average person.
Note: In December, the average maximum UV index of 2 translates into the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.

Frequently asked questions

What is the temperature in December in Shelby?

In December, in Shelby, the average high-temperature is 52.2°F (11.2°C), and the average low-temperature is 37°F (2.8°C). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 87.8°F (31°C).

What is the most humid month?

May and December, with an average relative humidity of 76%, are most humid months.

What is the average humidity in December?

The average relative humidity in December is 76%.

What is the rainiest month?

December is the month with the most rainfall in Shelby, North Carolina. Rain falls for 11.5 days and accumulates 3.46" (88mm) of precipitation.

How many days does it rain in December?

In Shelby, North Carolina, during December, the rain falls for 11.5 days and regularly aggregates up to 3.46" (88mm) of precipitation.

What is the snowiest month in Shelby?

The month with the most snowfall is December, when snow falls for 0.7 days and typically aggregates up to 2.36" (60mm) of snow.

How many days does it snow in December?

In Shelby, during December, snow falls for 0.7 days and regularly aggregates up to 2.36" (60mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Shelby have in December?

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

When are sunrise and sunset in December in Shelby?

On the first day of December, sunrise is at 7:17 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:24 pm EST.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 5.4h of sunshine.

How long on average sun shines in December?

In December, the average sunshine duration is 5.4h.

What are the months with the lowest UV index?

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

What is the UV index reading in December?

In Shelby, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk 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
Shelby, NC

Average temperature in December - Shelby, NC
  • Average high temperature in December: 52.2°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (47.8°F).

  • Average low temperature in December: 37°F

The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).

Average pressure in December
Shelby, NC

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

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in December
Shelby, NC

Average wind speed in December - Shelby, NC
  • Average wind speed in December: 5.7mph

The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is August (4mph).

Average humidity in December
Shelby, NC

Average humidity in December - Shelby, NC
  • Average humidity in December: 76%

The months with the highest relative humidity are May and December (76%).
The month with the lowest relative humidity is July (70%).

Average rainfall in December
Shelby, NC

Average rainfall in December - Shelby, NC
  • Average rainfall in December: 3.46"

The wettest month (with the highest rainfall) is December (3.46").
The driest months (with the least rainfall) are September and October (2.13").

Average rainfall days in December
Shelby, NC

Average rainfall days in December - Shelby, NC
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is November (9.9 days).

Average snowfall in December
Shelby, NC

Average snowfall in December - Shelby, NC
  • Average snowfall in December: 2.36"

The month with the highest snowfall is December (2.36").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Shelby, NC

Average snowfall days in December - Shelby, NC
  • Average snowfall days in December: 0.7 days

The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Shelby, NC

Average daylight in December / Average sunshine in December - Shelby, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

Average sunshine days in December
Shelby, NC

Average sunshine days in December - Shelby, NC
  • Average sunshine days in December: 18.2 days

The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is July (10.3 days).

Average UV index in December
Shelby, NC

Average UV index in December - Shelby, 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).

Average cloud cover in December
Shelby, NC

Average cloud cover in December - Shelby, NC
  • Average cloud cover in December: 42

The months with the most cloud cover are February, March and December (Cloud cover 42).
The months with the least cloud cover are June and July (Cloud cover 29).

Average visibility in December
Shelby, NC

Average visibility in December - Shelby, 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).

Shelby, North Carolina, USA

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