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
December is marked by a subtle drop in average high-temperatures, transitioning from a comfortable 66.2°F (19°C) in November to a still refreshing 60.6°F (15.9°C). Throughout the month of December, Runnymede reports a steady low-temperature average of 45.9°F (7.7°C).Humidity
The most humid month is December, with an average relative humidity of 77%.Rainfall
In Runnymede, South Carolina, during December, the rain falls for 10.8 days and regularly aggregates up to 4.17" (106mm) of precipitation. In Runnymede, during the entire year, the rain falls for 172.6 days and collects up to 39.13" (994mm) of precipitation.Snowfall
Months with snowfall in Runnymede, South Carolina, 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 Runnymede, 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 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.
Sunshine
With an average of 5.6h of sunshine, December has the least sunshine of the year in Runnymede.UV index
In December, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 4 in December leads to these guidelines:
Ensure safety - Sun damage prevention is strongly urged. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
What are December temperatures in Runnymede?
What is the most humid month in Runnymede?
What is the average humidity in December in Runnymede?
How many days does it rain in December in Runnymede?
When does it start snowing in Runnymede?
What is the month with the shortest days in Runnymede?
What is the average length of the day in December in Runnymede?
What time are sunrise and sunset in December in Runnymede?
What is the month with the least sunshine in Runnymede?
How long on average sun shines in December in Runnymede?
What is the UV index intensity in December in Runnymede?
Average temperature in December
Runnymede, 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
Runnymede, 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
Runnymede, 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
Runnymede, 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
Runnymede, 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
Runnymede, 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
Runnymede, 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
Runnymede, 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
Runnymede, 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
Runnymede, 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
Runnymede, 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
Runnymede, 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
Runnymede, 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).
Runnymede, South Carolina, USA
Weather forecast for your location
2. Allow the app to use your location
