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 moderate 59.5°F (15.3°C) to a fresh 52.7°F (11.5°C). An average low-temperature of 37.9°F (3.3°C) is recorded in the month of December in Westminster.Humidity
December is the most humid month in Westminster, with an average relative humidity of 77%.Rainfall
The month with the most rainfall in Westminster is December, when the rain falls for 11.6 days and typically aggregates up to 3.7" (94mm) of precipitation.Snowfall
Months with snowfall are January through March and December. The month with the most snowfall in Westminster, South Carolina, is December, when snow falls for 0.6 days and typically aggregates up to 2.28" (58mm) of snow.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:21 am and sunset at 5:21 pm. On the last day of December, in Westminster, South Carolina, sunrise is at 7:39 am and sunset at 5:32 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 5.4h of sunshine.UV index
The months with the lowest UV index in Westminster are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 2 suggests this advice:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
What is the average December temperature in Westminster?
What is the most humid month in Westminster?
What is the average humidity in December in Westminster?
What is the rainiest month in Westminster?
How many days does it rain in December in Westminster?
When does it snow the most in Westminster?
When does it start to snow in Westminster?
What is the month with the shortest days in Westminster?
How many hours of daylight does Westminster have in December?
When is the sunrise / sunset in December in Westminster?
What is the month with the least sunshine in Westminster?
How many hours of sunshine does Westminster have in December?
What are the months with the lowest UV index in Westminster?
What is the UV index intensity in December in Westminster?
Average temperature in December
Westminster, SC
- Average high temperature in December: 52.7°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in December: 37.9°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).
Average pressure in December
Westminster, SC
- Average pressure in December: 30.14"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in December
Westminster, SC
- Average wind speed in December: 5.4mph
The windiest month (with the highest average wind speed) is February (6.1mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in December
Westminster, 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 (71%).
Average rainfall in December
Westminster, SC
- Average rainfall in December: 3.7"
The wettest month (with the highest rainfall) is December (3.7").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in December
Westminster, SC
- Average rainfall days in December: 11.6 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is October (8.5 days).
Average snowfall in December
Westminster, SC
- Average snowfall in December: 2.28"
The month with the highest snowfall is December (2.28").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Westminster, SC
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is February (1 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
Westminster, 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: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Westminster, SC
- Average sunshine days in December: 17.6 days
The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is July (11.6 days).
Average UV index in December
Westminster, 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
Westminster, 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 July (Cloud cover 27).
Average visibility in December
Westminster, SC
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Westminster, South Carolina, USA
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