December weather forecastGreenwood, SC
December
Weather in December
In December, Greenwood embraces the winter season with the year’s coldest average temperatures. The decline from November is prominent, and the city settles for a cool Christmas and colder weather ahead. The pressure starts to rise, reaching 30.14" (766mm), the highest in the year, due to colder air. As Greenwood sighs under the winter air, it does not forget to celebrate the festive season despite the chill. Even amidst the cold, the city lights up in festive spirit, bringing warmth to the winter days.Temperature
Greenwood's transition into December involves a gentle shift in temperature, receding from a refreshing 61.5°F (16.4°C) in November to a fresh 54.5°F (12.5°C). During the nights in December, Greenwood observes an average low-temperature of 39.7°F (4.3°C).Humidity
With an average relative humidity of 77%, December is the most humid month.Rainfall
The month with the most rainfall is December, when the rain falls for 11.5 days and typically aggregates up to 3.39" (86mm) of precipitation.Snowfall
April through December are months without snowfall in Greenwood.Daylight
December has the shortest days of the year, with an average of 9h and 54min of daylight.On the first day of December, sunrise is at 7:16 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:29 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 5.3h of sunshine.UV index
In Greenwood, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the average maximum UV index of 3 translates into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Greenwood, SC
- Average high temperature in December: 54.5°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (51.4°F).
- Average low temperature in December: 39.7°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (35.1°F).
Average pressure in December
Greenwood, SC
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Greenwood, SC
- Average wind speed in December: 6.8mph
The windiest months (with the highest average wind speed) are February and April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in December
Greenwood, 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 (70%).
Average rainfall in December
Greenwood, SC
- Average rainfall in December: 3.39"
The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in December
Greenwood, SC
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is October (8.5 days).
Average snowfall in December
Greenwood, SC
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.87").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Greenwood, SC
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (0.7 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
Greenwood, 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 18min
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 18min).
Average sunshine days in December
Greenwood, SC
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is October (21.1 days).
The month with the least sunshine days is August (11.4 days).
Average UV index in December
Greenwood, SC
- Average UV index in December: 3
The months with the highest UV index are June and August (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in December
Greenwood, SC
- Average cloud cover in December: 43
The month with the most cloud cover is December (Cloud cover 43).
The months with the least cloud cover are June, July and October (Cloud cover 29).
Average visibility in December
Greenwood, 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).
