Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December brings an average high-temperature of a moderate 60.6°F (15.9°C), showing a slight difference from November's 65.8°F (18.8°C). Riverland reports an average nighttime low-temperature of 51.1°F (10.6°C) in December.Humidity
December is the most humid month in Riverland, South Carolina, with an average relative humidity of 78%.Rainfall
In Riverland, during December, the rain falls for 6.2 days and regularly aggregates up to 1.14" (29mm) of precipitation. Throughout the year, there are 113.3 rainfall days, and 10" (254mm) of precipitation is accumulated.Snowfall
January and December are months with snowfall in Riverland. December is the first month it typically snows. Throughout December, there are 0.1 snowfall days. In Riverland, South Carolina, during the entire year, snow falls for 0.3 days.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year in Riverland.On the first day of the month, sunrise is at 7:04 am and sunset at 5:13 pm. On the last day of December, sunrise is at 7:21 am and sunset at 5:24 pm EST.
Sunshine
The month with the least sunshine in Riverland is December, with an average of 5.7h of sunshine.UV index
The average daily maximum UV index in December in Riverland is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: In December, a daily UV index of 4 turns into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. Around midday, solar radiation is most harmful; hence, exposure should be limited. Stay sun-safe with clothing that is both closely woven and worn loosely. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What is the usual temperature for Riverland in December?
What is the most humid month in Riverland?
What is the average humidity in December in Riverland?
How much does it rain in Riverland in December?
When does it start to snow in Riverland?
What is the month with the shortest days in Riverland?
How many hours of daylight does Riverland have in December?
When are sunrise and sunset in December in Riverland?
What is the month with the least sunshine in Riverland?
How many hours of sunshine does Riverland have in December?
What is the UV index reading in December in Riverland?
Average temperature in December
Riverland, SC
- Average high temperature in December: 60.6°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (57°F).
- Average low temperature in December: 51.1°F
The months with the highest average low temperature are July and August (78.4°F).
The coldest month (with the lowest average low temperature) is January (46.4°F).
Average pressure in December
Riverland, SC
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Riverland, SC
- Average wind speed in December: 10.2mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.8mph).
Average humidity in December
Riverland, SC
- Average humidity in December: 78%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are January, March and October (73%).
Average rainfall in December
Riverland, SC
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is August (1.93").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in December
Riverland, SC
- Average rainfall days in December: 6.2 days
The month with the highest number of rainy days is August (17.3 days).
The month with the least rainy days is November (5.2 days).
Average snowfall days in December
Riverland, SC
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Riverland, 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 4min
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 42min).
Average sunshine days in December
Riverland, SC
- Average sunshine days in December: 23.5 days
The month with the most sunshine days is January (23.9 days).
The month with the least sunshine days is August (8.5 days).
Average UV index in December
Riverland, SC
- Average UV index in December: 4
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in December
Riverland, SC
- Average cloud cover in December: 39
The month with the most cloud cover is December (Cloud cover 39).
The months with the least cloud cover are June and July (Cloud cover 25).
Average visibility in December
Riverland, 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).
Riverland, South Carolina, USA
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