Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The start of December involves a subtle temperature drop, shifting from a comfortable 61.7°F (16.5°C) in November to a still refreshing 55.8°F (13.2°C). Shannon Hill records an average nighttime low-temperature of 41.9°F (5.5°C) throughout December.Humidity
In December, the average relative humidity in Shannon Hill is 75%.Rainfall
In Shannon Hill, in December, during 10.4 rainfall days, 3.31" (84mm) of precipitation is typically accumulated. Throughout the year, there are 158.4 rainfall days, and 31.38" (797mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Shannon Hill, in December, snow falls for 0.1 days, with typically accumulated 0.2" (5mm) of snow. Throughout the year, there are 1.8 snowfall days, and 1.38" (35mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 7:09 am and sunset at 5:11 pm. On the last day of December, sunrise is at 7:26 am and sunset at 5:21 pm EST.
Sunshine
With an average of 5.5h of sunshine, December has the least sunshine of the year.UV index
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: The maximum daily UV index of 3 during December translates into the following directions:
Take precautions - Protection against sun damage is advised. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine in Shannon Hill?
How long on average sun shines in December in Shannon Hill?
What is the UV index intensity in December in Shannon Hill?
Average temperature in December
Shannon Hill, SC
- Average high temperature in December: 55.8°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (52.2°F).
- Average low temperature in December: 41.9°F
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (37°F).
Average pressure in December
Shannon Hill, 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
Shannon Hill, SC
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Shannon Hill, SC
- Average humidity in December: 75%
The months with the highest relative humidity are May and September (76%).
The months with the lowest relative humidity are January, March and November (71%).
Average rainfall in December
Shannon Hill, SC
- Average rainfall in December: 3.31"
The wettest month (with the highest rainfall) is August (3.66").
The driest month (with the least rainfall) is January (1.73").
Average rainfall days in December
Shannon Hill, SC
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in December
Shannon Hill, SC
- Average snowfall in December: 0.2"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Shannon Hill, SC
- Average snowfall days in December: 0.1 days
The months with the highest number of snowfall days are January and February (0.7 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
Shannon Hill, 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 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
Shannon Hill, SC
- Average sunshine days in December: 19.4 days
The month with the most sunshine days is October (21.6 days).
The month with the least sunshine days is August (9 days).
Average UV index in December
Shannon Hill, SC
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in December
Shannon Hill, SC
- Average cloud cover in December: 41
The months with the most cloud cover are February and December (Cloud cover 41).
The months with the least cloud cover are June and October (Cloud cover 28).
Average visibility in December
Shannon Hill, 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).
Shannon Hill, South Carolina, USA
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