December weather forecastCayce, SC
December
Weather in December
December rounds out the year in Cayce with the arrival of the winter season. It is one of the wetter months, recording a relatively high rainfall of 2.05" (52mm). The forecast predicts fewer daylight hours and a further reduction in the amount of sunshine. The month also sees an increase in wind speed, adding a further cold touch to the winter days. With the higher cloud cover than previous months, December embraces the winter, presenting colder and shorter days.Temperature
The move into December indicates a slight reduction in the average high-temperature, down from November's 62.6°F (17°C) to a still refreshing 56.7°F (13.7°C). During the December nights, an average temperature of 41.9°F (5.5°C) is observed in Cayce.Humidity
The most humid month is December, with an average relative humidity of 75%.Rainfall
In Cayce, during December, the rain falls for 10 days and regularly aggregates up to 2.05" (52mm) of precipitation. In Cayce, during the entire year, the rain falls for 130.3 days and collects up to 20.55" (522mm) of precipitation.Snowfall
March through December are months without snowfall.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 5:15 pm. On the last day of December, in Cayce, sunrise is at 7:29 am and sunset at 5:25 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 5.4h of sunshine.UV index
January, February and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 3 in December transforms into the following instructions:
Guard yourself - Precautionary measures against sun damage are advocated. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cayce, SC
- Average high temperature in December: 56.7°F
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (52.9°F).
- Average low temperature in December: 41.9°F
The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (37.8°F).
Average pressure in December
Cayce, 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
Cayce, SC
- Average wind speed in December: 7.5mph
The windiest months (with the highest average wind speed) are February and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Cayce, SC
- Average humidity in December: 75%
The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is July (69%).
Average rainfall in December
Cayce, SC
- Average rainfall in December: 2.05"
The wettest month (with the highest rainfall) is August (2.17").
The driest month (with the least rainfall) is September (0.98").
Average rainfall days in December
Cayce, SC
- Average rainfall days in December: 10 days
The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is October (6.6 days).
Average snowfall in December
Cayce, SC
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Cayce, SC
- Average snowfall days in December: 0 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 March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Cayce, 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: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Cayce, SC
- Average sunshine days in December: 19.8 days
The month with the most sunshine days is October (23 days).
The month with the least sunshine days is July (13.9 days).
Average UV index in December
Cayce, SC
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in December
Cayce, 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 October (Cloud cover 28).
Average visibility in December
Cayce, 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).
