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
With the commencement of December, Westville records a moderate temperature decline, with the average high easing from November's moderate 60.4°F (15.8°C) to a cool 54.5°F (12.5°C). Throughout the December nights, Westville encounters a low-temperature of 40.5°F (4.7°C).Humidity
The average relative humidity in December is 74%.Rainfall
In Westville, in December, it is raining for 11.8 days, with typically 3.35" (85mm) of accumulated precipitation. Throughout the year, in Westville, there are 161.3 rainfall days, and 33.03" (839mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Westville, South Carolina, in December, snow falls for 0.4 days, with typically accumulated 0.2" (5mm) of snow. Throughout the year, in Westville, South Carolina, there are 2.7 snowfall days, and 1.97" (50mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of December, sunrise is at 7:11 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:22 pm EST.
Sunshine
December has the least sunshine of the year in Westville, South Carolina, with an average of 5.4h of sunshine.UV index
In Westville, South Carolina, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, the maximum UV index of 3 translates into these guidelines:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Westville?
What is the average humidity in December in Westville?
How many days does it rain in December in Westville?
How much does it snow in Westville in December?
What is the month with the shortest days in Westville?
How many hours of daylight does Westville have in December?
When are sunrise and sunset in December in Westville?
What is the month with the least sunshine in Westville?
How many hours of sunshine does Westville have in December?
How high is the UV index in December in Westville?
Average temperature in December
Westville, SC
- Average high temperature in December: 54.5°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (50.7°F).
- Average low temperature in December: 40.5°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (36°F).
Average pressure in December
Westville, 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 (29.97"Hg).
Average wind speed in December
Westville, SC
- Average wind speed in December: 7.2mph
The windiest months (with the highest average wind speed) are February and April (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Westville, SC
- Average humidity in December: 74%
The month with the highest relative humidity is May (75%).
The months with the lowest relative humidity are January, March, July and November (71%).
Average rainfall in December
Westville, SC
- Average rainfall in December: 3.35"
The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is October (2.09").
Average rainfall days in December
Westville, SC
- Average rainfall days in December: 11.8 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is October (8.7 days).
Average snowfall in December
Westville, SC
- Average snowfall in December: 0.2"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Westville, SC
- Average snowfall days in December: 0.4 days
The months with the highest number of snowfall days are January and February (0.8 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
Westville, SC
- Average daylight in December: 9h and 5min
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 2min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Westville, SC
- Average sunshine days in December: 17.3 days
The month with the most sunshine days is October (21.1 days).
The month with the least sunshine days is July (10.6 days).
Average UV index in December
Westville, SC
- Average UV index in December: 3
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in December
Westville, SC
- Average cloud cover in December: 42
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in December
Westville, 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).
Westville, South Carolina, USA
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