December weather forecastHighland Park, SC
December
Weather in December
December, the first month of the winter in Highland Park, is also a moderate month, with an average temperature ranging between min 45.9°F (7.7°C) and max 60.6°F (15.9°C).Temperature
Highland Park's progression into December involves a minor drop in the average high-temperature, slightly receding from a comfortable 66.2°F (19°C) in November to a moderate 60.6°F (15.9°C). During December nights, Highland Park witnesses a consistent average temperature of 45.9°F (7.7°C).Humidity
With an average relative humidity of 77%, December is the most humid month.Rainfall
In Highland Park, in December, it is raining for 10.8 days, with typically 4.17" (106mm) of accumulated precipitation. In Highland Park, 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 Highland Park 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 Highland Park, during the entire year, snow falls for 0.9 days and aggregates up to 0.39" (10mm) of snow.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year.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
The month with the least sunshine is December, with an average of 5.6h of sunshine.UV index
In Highland Park, the average daily maximum UV index in December is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 4 suggests these recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Highland Park, 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
Highland Park, 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
Highland Park, 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
Highland Park, 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
Highland Park, 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
Highland Park, 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
Highland Park, 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
Highland Park, 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
Highland Park, 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 36min
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
Highland Park, 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
Highland Park, 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
Highland Park, 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
Highland Park, 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).
