December weather forecastGrover Square, SC
December
Weather in December
The first month of the winter, December, is still a cool month in Grover Square, South Carolina, with an average temperature ranging between min 37.9°F (3.3°C) and max 52.7°F (11.5°C).Temperature
The onset of December results in a small decrease in the average high-temperature, moderately receding from a refreshing 59.5°F (15.3°C) in November to a cool 52.7°F (11.5°C). During December, Grover Square experiences a consistent low-temperature average of 37.9°F (3.3°C).Humidity
With an average relative humidity of 77%, December is the most humid month in Grover Square.Rainfall
The month with the most rainfall is December, when the rain falls for 11.6 days and typically aggregates up to 3.7" (94mm) of precipitation.Snowfall
January through March and December are months with snowfall in Grover Square. December is the month with the most snowfall. Snow falls for 0.6 days and accumulates 2.28" (58mm) of snow.Daylight
December has the shortest days of the year in Grover Square, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 7:21 am and sunset at 5:21 pm. On the last day of December, sunrise is at 7:38 am and sunset at 5:31 pm EST.
Sunshine
The month with the least sunshine in Grover Square is December, with an average of 5.4h of sunshine.UV index
The months with the lowest UV index in Grover Square are January and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 2 during December translates into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Grover Square, SC
- Average high temperature in December: 52.7°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in December: 37.9°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).
Average pressure in December
Grover Square, SC
- Average pressure in December: 30.14"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in December
Grover Square, SC
- Average wind speed in December: 5.4mph
The windiest month (with the highest average wind speed) is February (6.1mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in December
Grover Square, SC
- Average humidity in December: 77%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (71%).
Average rainfall in December
Grover Square, SC
- Average rainfall in December: 3.7"
The wettest month (with the highest rainfall) is December (3.7").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in December
Grover Square, SC
- Average rainfall days in December: 11.6 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is October (8.5 days).
Average snowfall in December
Grover Square, SC
- Average snowfall in December: 2.28"
The month with the highest snowfall is December (2.28").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Grover Square, SC
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is February (1 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
Grover Square, 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 24min
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 24min).
Average sunshine days in December
Grover Square, SC
- Average sunshine days in December: 17.6 days
The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is July (11.6 days).
Average UV index in December
Grover Square, SC
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Grover Square, 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 July (Cloud cover 27).
Average visibility in December
Grover Square, SC
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
