December weather forecast
Gilbert, SC

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Weather in December

December, the first month of the winter in Gilbert, is still a mild month, with an average temperature varying between 56.1°F (13.4°C) and 41.2°F (5.1°C).

Temperature

December ushers in a minute temperature change, with average high-temperatures reducing from November's comfortable 61.9°F (16.6°C) to a mild 56.1°F (13.4°C). During December, Gilbert experiences an average low-temperature of 41.2°F (5.1°C) at night.

Humidity

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

Rainfall

December is the month with the most rainfall. Rain falls for 11.8 days and accumulates 3.43" (87mm) of precipitation.

Snowfall

January through March and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Gilbert, during the entire year, snow falls for 1.8 days and aggregates up to 1.5" (38mm) of snow.

Daylight

With an average of 9h and 54min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:13 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:27 pm EST.

Sunshine

The month with the least sunshine is December, with an average of 5.3h of sunshine.

UV index

In Gilbert, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In December, the maximum UV index of 3 suggests these recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Updated: Jul 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average December temperature?

The average high-temperature and low-temperature in Gilbert during December are 56.1°F (13.4°C) and 41.2°F (5.1°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in September is appraised at 91.4°F (33°C).

What is the most humid month?

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

What is the average humidity in December?

In December, the average relative humidity is 76%.

What is the rainiest month?

December is the month with the most rainfall in Gilbert. Rain falls for 11.8 days and accumulates 3.43" (87mm) of precipitation.

How many days does it rain in December?

In December, the rain falls for 11.8 days. Throughout December, 3.43" (87mm) of precipitation is accumulated.

When does it start snowing?

December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 54min of daylight.

How many hours of daylight does Gilbert have in December?

In December, the average day length is 9h and 56min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:13 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:27 pm EST.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 5.3h of sunshine.

How long on average sun shines in December?

The average sunshine duration in December is 5.3h.

How high is the UV index in December?

The average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
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
Gilbert, SC

Average temperature in December - Gilbert, SC
  • Average high temperature in December: 56.1°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (52.3°F).

  • Average low temperature in December: 41.2°F

The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (36.9°F).

Average pressure in December
Gilbert, SC

Average pressure in December - Gilbert, SC
  • Average pressure in December: 30.14"Hg

The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in December
Gilbert, SC

Average wind speed in December - Gilbert, SC
  • Average wind speed in December: 7.6mph

The windiest months (with the highest average wind speed) are February and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in December
Gilbert, SC

Average humidity in December - Gilbert, SC
  • Average humidity in December: 76%

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

Average rainfall in December
Gilbert, SC

Average rainfall in December - Gilbert, SC
  • Average rainfall in December: 3.43"

The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.77").

Average rainfall days in December
Gilbert, SC

Average rainfall days in December - Gilbert, SC
  • Average rainfall days in December: 11.8 days

The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is October (8.9 days).

Average snowfall in December
Gilbert, SC

Average snowfall in December - Gilbert, SC
  • Average snowfall in December: 0.04"

The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Gilbert, SC

Average snowfall days in December - Gilbert, SC
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is January (0.8 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
Gilbert, SC

Average daylight in December / Average sunshine in December - Gilbert, SC
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in December
Gilbert, SC

Average sunshine days in December - Gilbert, SC
  • Average sunshine days in December: 17.9 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (10 days).

Average UV index in December
Gilbert, SC

Average UV index in December - Gilbert, SC
  • Average UV index in December: 3

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 2).

Average cloud cover in December
Gilbert, SC

Average cloud cover in December - Gilbert, SC
  • Average cloud cover in December: 42

The months with the most cloud cover are February and December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 28).

Average visibility in December
Gilbert, SC

Average visibility in December - Gilbert, SC
  • 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).

Gilbert, South Carolina, USA

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