December weather forecast
Hanahan, SC

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Weather in December

Completing a calendar year in Hanahan, December comes with the onset of winter, which introduces lower temperatures and an increase in rainfall. With a trivial amount of snowfall, just 0.04" (1mm), December weather conditions incorporate some aspects of winter without reaching severe cold conditions. Compared to November, December experiences shorter days, lower temperatures, and more rainfall. As January approaches, the weather trends seem to remain more or less constant with minimal fluctuations. Nonetheless, despite the winter chill, December offers a festive charm with the holiday season in full swing.

Temperature

Hanahan's transition into December involves a gentle shift in temperature, receding from a comfortable 66.2°F (19°C) in November to a still refreshing 60.6°F (15.9°C). Hanahan, during the nights of December, experiences an average temperature drop to a chilly 45.9°F (7.7°C).

Humidity

The most humid month is December, with an average relative humidity of 77%.

Rainfall

In Hanahan, during December, the rain falls for 10.8 days and regularly aggregates up to 4.17" (106mm) of precipitation. Throughout the year, there are 172.6 rainfall days, and 39.13" (994mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January, February and December. December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow. In Hanahan, during the entire year, snow falls for 0.9 days and aggregates up to 0.39" (10mm) of snow.

Daylight

The month with the shortest days is December, with an average of 10h and 0min of daylight.
On the first day of the month, sunrise is at 7:05 am and sunset at 5:13 pm. On the last day of December, sunrise is at 7:22 am and sunset at 5:24 pm EST.

Sunshine

December has the least sunshine of the year, with an average of 5.6h of sunshine.

UV index

In Hanahan, the average daily maximum UV index in December is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 4 in December translates into these instructions:
Adopt protective measures - Suggestions to resist sunburn are offered. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Updated: Jul 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average December temperature?

The high-temperature, in December, in Hanahan, records 60.6°F (15.9°C), while the low-temperature is 45.9°F (7.7°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in September is appraised at 95°F (35°C).

What is the most humid month?

The most humid month in Hanahan is December, with an average relative humidity of 77%.

What is the average humidity in December?

In December, the average relative humidity is 77%.

How much does it rain in December?

In December, the rain falls for 10.8 days. Throughout December, 4.17" (106mm) of precipitation is accumulated.

When does it start snowing?

December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 10h and 0min of daylight.

What is the average length of the day in December?

In December, the average day length is 10h and 1min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:05 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:24 pm EST.

What is the month with the least sunshine?

With an average of 5.6h of sunshine, December has the least sunshine of the year.

How many hours of sunshine does Hanahan have in December?

In Hanahan, South Carolina, the average sunshine duration in December is 5.6h.

What is the UV index reading in December?

The average daily maximum UV index in December is 4. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Hanahan, SC

Average temperature in December - Hanahan, SC
  • Average high temperature in December: 60.6°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in December: 45.9°F

The month with the highest average low temperature is July (75.7°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).

Average pressure in December
Hanahan, SC

Average pressure in December - Hanahan, SC
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).

Average wind speed in December
Hanahan, SC

Average wind speed in December - Hanahan, SC
  • Average wind speed in December: 6.9mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in December
Hanahan, SC

Average humidity in December - Hanahan, SC
  • Average humidity in December: 77%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are January and March (72%).

Average rainfall in December
Hanahan, SC

Average rainfall in December - Hanahan, SC
  • Average rainfall in December: 4.17"

The wettest month (with the highest rainfall) is August (6.22").
The driest month (with the least rainfall) is January (1.46").

Average rainfall days in December
Hanahan, SC

Average rainfall days in December - Hanahan, SC
  • Average rainfall days in December: 10.8 days

The month with the highest number of rainy days is August (23.4 days).
The month with the least rainy days is November (8.2 days).

Average snowfall in December
Hanahan, SC

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

The month with the highest snowfall is February (0.28").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Hanahan, SC

Average snowfall days in December - Hanahan, SC
  • Average snowfall days in December: 0.2 days

The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in December /
Average sunshine in December
Hanahan, SC

Average daylight in December / Average sunshine in December - Hanahan, SC
  • Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 5h and 4min

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 36min).

Average sunshine days in December
Hanahan, SC

Average sunshine days in December - Hanahan, SC
  • Average sunshine days in December: 19.1 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is August (5.8 days).

Average UV index in December
Hanahan, SC

Average UV index in December - Hanahan, SC
  • Average UV index in December: 4

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 3).

Average cloud cover in December
Hanahan, SC

Average cloud cover in December - Hanahan, SC
  • Average cloud cover in December: 41

The month with the most cloud cover is December (Cloud cover 41).
The months with the least cloud cover are June and July (Cloud cover 27).

Average visibility in December
Hanahan, SC

Average visibility in December - Hanahan, 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).

Hanahan, South Carolina, USA

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