December weather forecastRock Branch North, SC
December
Weather in December
The first month of the winter, December, is still a refreshing month in Rock Branch North, South Carolina, with an average temperature fluctuating between 41.5°F (5.3°C) and 55.6°F (13.1°C).Temperature
The beginning of December brings a minor change in the average high-temperature, shifting from a refreshing 61.7°F (16.5°C) in November to a moderate 55.6°F (13.1°C). The average nighttime temperature lowers to a wintry 41.5°F (5.3°C) throughout December.Humidity
In December, the average relative humidity is 74%.Rainfall
In Rock Branch North, during December, the rain falls for 10.5 days and regularly aggregates up to 3.27" (83mm) of precipitation. Throughout the year, there are 157 rainfall days, and 31.54" (801mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Rock Branch North, in December, during 0.1 snowfall days, 0.16" (4mm) of snow is typically accumulated. In Rock Branch North, during the entire year, snow falls for 1.4 days and aggregates up to 0.75" (19mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 7:11 am and sunset at 5:13 pm. On the last day of December, sunrise is at 7:29 am and sunset at 5:24 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 reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the average maximum UV index of 3 translates into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rock Branch North, SC
- Average high temperature in December: 55.6°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (52.2°F).
- Average low temperature in December: 41.5°F
The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (37.6°F).
Average pressure in December
Rock Branch North, 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
Rock Branch North, SC
- Average wind speed in December: 7.1mph
The windiest months (with the highest average wind speed) are February and April (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Rock Branch North, SC
- Average humidity in December: 74%
The month with the highest relative humidity is May (75%).
The months with the lowest relative humidity are January and November (70%).
Average rainfall in December
Rock Branch North, SC
- Average rainfall in December: 3.27"
The wettest month (with the highest rainfall) is August (3.66").
The driest months (with the least rainfall) are January and November (1.97").
Average rainfall days in December
Rock Branch North, SC
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is October (8.2 days).
Average snowfall in December
Rock Branch North, SC
- Average snowfall in December: 0.16"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Rock Branch North, SC
- Average snowfall days in December: 0.1 days
The months with the highest number of snowfall days are January and February (0.5 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
Rock Branch North, SC
- Average daylight in December: 9h and 54min
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 30min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in December
Rock Branch North, SC
- Average sunshine days in December: 19.3 days
The month with the most sunshine days is October (21.8 days).
The month with the least sunshine days is July (8.9 days).
Average UV index in December
Rock Branch North, 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
Rock Branch North, SC
- Average cloud cover in December: 40
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in December
Rock Branch North, 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).
