December weather forecast
Union Grove, NC

Share

Weather in December

The first month of the winter, December, is still a chilly month in Union Grove, North Carolina, with an average temperature fluctuating between 35.1°F (1.7°C) and 49.8°F (9.9°C).

Temperature

With the arrival of December, Union Grove experiences a modest decline in average high-temperatures, transitioning from a mild 56.8°F (13.8°C) in November to a frosty 49.8°F (9.9°C). Nighttime temperatures hover around an average low of 35.1°F (1.7°C) in December.

Humidity

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

Rainfall

In December, in Union Grove, the rain falls for 11.4 days. Throughout December, 3.07" (78mm) of precipitation is accumulated. Throughout the year, there are 160.3 rainfall days, and 30.67" (779mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. December is the month with the most snowfall. Snow falls for 1.1 days and accumulates 2.28" (58mm) 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 the month, sunrise is at 7:16 am and sunset at 5:09 pm. On the last day of December, sunrise is at 7:33 am and sunset at 5:19 pm EST.

Sunshine

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

UV index

The months with the lowest UV index are January 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 rays for average individuals.
Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Updated: Jun 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in December?

Union Grove in December has an average high-temperature of 49.8°F (9.9°C) and an average low-temperature of 35.1°F (1.7°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in September is estimated at 84.2°F (29°C).

What is the most humid month?

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

What is the average humidity in December?

The average relative humidity in December is 76%.

How many days does it rain in December?

In Union Grove, in December, during 11.4 rainfall days, 3.07" (78mm) of precipitation is typically accumulated.

When does it snow the most?

December is the month with the most snowfall. Snow falls for 1.1 days and accumulates 2.28" (58mm) of snow.

How much does it snow in December?

In Union Grove, in December, snow falls for 1.1 days, with typically accumulated 2.28" (58mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 48min of daylight.

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

In December, the average day length is 9h and 46min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:16 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 5:19 pm EST.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 5.5h of sunshine.

How many hours of sunshine does Union Grove have in December?

In December, the average sunshine duration is 5.5h.

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.

How high is the UV index in December?

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
Union Grove, NC

Average temperature in December - Union Grove, NC
  • Average high temperature in December: 49.8°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in December: 35.1°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

Average pressure in December
Union Grove, NC

Average pressure in December - Union Grove, 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 (29.98"Hg).

Average wind speed in December
Union Grove, NC

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

The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).

Average humidity in December
Union Grove, NC

Average humidity in December - Union Grove, 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 (69%).

Average rainfall in December
Union Grove, NC

Average rainfall in December - Union Grove, NC
  • Average rainfall in December: 3.07"

The wettest month (with the highest rainfall) is April (3.31").
The driest month (with the least rainfall) is September (2.01").

Average rainfall days in December
Union Grove, NC

Average rainfall days in December - Union Grove, NC
  • Average rainfall days in December: 11.4 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.7 days).

Average snowfall in December
Union Grove, NC

Average snowfall in December - Union Grove, NC
  • Average snowfall in December: 2.28"

The month with the highest snowfall is December (2.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Union Grove, NC

Average snowfall days in December - Union Grove, NC
  • Average snowfall days in December: 1.1 days

The month with the highest number of snowfall days is February (3.1 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
Union Grove, NC

Average daylight in December / Average sunshine in December - Union Grove, 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 3min

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 30min).

Average sunshine days in December
Union Grove, NC

Average sunshine days in December - Union Grove, NC
  • Average sunshine days in December: 18.2 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11.6 days).

Average UV index in December
Union Grove, NC

Average UV index in December - Union Grove, 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
Union Grove, NC

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

The month with the most cloud cover is March (Cloud cover 42).
The months with the least cloud cover are June and July (Cloud cover 28).

Average visibility in December
Union Grove, NC

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

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

Union Grove, North Carolina, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location