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 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's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from November's refreshing 59.9°F (15.5°C) to a cool 52.7°F (11.5°C). During the nights in December, Una experiences a consistent average temperature of 38.5°F (3.6°C).Humidity
December is the most humid month, with an average relative humidity of 76%.Rainfall
The month with the most rainfall is December, when the rain falls for 10.2 days and typically aggregates up to 3.43" (87mm) of precipitation.Snowfall
January through March and December are months with snowfall in Una, South Carolina. The month with the most snowfall in Una, South Carolina, is December, when snow falls for 0.5 days and typically aggregates up to 2.2" (56mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of December in Una, South Carolina, sunrise is at 7:17 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:26 pm EST.
Sunshine
With an average of 5.3h of sunshine, December has the least sunshine of the year in Una.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 2 in December interprets into the following advice:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Avoiding the Sun during its peak radiation time around midday is a healthy practice. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Una?
What is the most humid month in Una?
What is the average humidity in December in Una?
What is the wettest month in Una?
How many days does it rain in December in Una?
What is the snowiest month in Una?
When does it start snowing in Una?
What is the month with the shortest days in Una?
What is the average length of the day in December in Una?
When are sunrise and sunset in December in Una?
What is the month with the least sunshine in Una?
How many hours of sunshine does Una have in December?
What are the months with the lowest UV index in Una?
How high is the UV index in December in Una?
Average temperature in December
Una, SC
- Average high temperature in December: 52.7°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 (49.6°F).
- Average low temperature in December: 38.5°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).
Average pressure in December
Una, 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
Una, SC
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in December
Una, SC
- Average humidity in December: 76%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (68%).
Average rainfall in December
Una, SC
- Average rainfall in December: 3.43"
The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in December
Una, SC
- Average rainfall days in December: 10.2 days
The months with the highest number of rainy days are July and August (15.8 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in December
Una, SC
- Average snowfall in December: 2.2"
The month with the highest snowfall is December (2.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Una, SC
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (1.3 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
Una, SC
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in December
Una, SC
- Average sunshine days in December: 19.8 days
The month with the most sunshine days is October (22 days).
The month with the least sunshine days is July (12.7 days).
Average UV index in December
Una, 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
Una, SC
- Average cloud cover in December: 43
The months with the most cloud cover are February and December (Cloud cover 43).
The months with the least cloud cover are June and July (Cloud cover 29).
Average visibility in December
Una, 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).
Una, South Carolina, USA
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