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 signifies a gentle decline in Saint Stephen's average high-temperature, easing from a refreshing 64°F (17.8°C) in November to a mild 58.5°F (14.7°C). In the month of December, the temperature generally rests at an average low of 42.8°F (6°C).Humidity
May, August, September and December, with an average relative humidity of 78%, are the most humid months.Rainfall
In Saint Stephen, in December, during 8.2 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. In Saint Stephen, during the entire year, the rain falls for 139.5 days and collects up to 15.75" (400mm) of precipitation.Snowfall
March through December are months without snowfall in Saint Stephen.Daylight
December has the shortest days of the year, with an average of 10h and 0min of daylight.On the first day of December, sunrise is at 7:06 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:22 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 5.6h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 3 during December translates into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Saint Stephen in December?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
When it does not snow?
Does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Saint Stephen have in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Saint Stephen, SC
- Average high temperature in December: 58.5°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (55°F).
- Average low temperature in December: 42.8°F
The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (38.3°F).
Average pressure in December
Saint Stephen, SC
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in December
Saint Stephen, SC
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Saint Stephen, SC
- Average humidity in December: 78%
The months with the highest relative humidity are May, August, September and December (78%).
The month with the lowest relative humidity is January (73%).
Average rainfall in December
Saint Stephen, SC
- Average rainfall in December: 1.73"
The wettest month (with the highest rainfall) is August (2.87").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in December
Saint Stephen, SC
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is August (20.1 days).
The month with the least rainy days is November (6.4 days).
Average snowfall in December
Saint Stephen, SC
- Average snowfall in December: 0"
The month with the highest snowfall is January (0.16").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Saint Stephen, 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 April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Saint Stephen, 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: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in December
Saint Stephen, SC
- Average sunshine days in December: 20.5 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is August (6.8 days).
Average UV index in December
Saint Stephen, SC
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in December
Saint Stephen, SC
- Average cloud cover in December: 42
The months with the most cloud cover are February and December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in December
Saint Stephen, 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).
Saint Stephen, South Carolina, USA
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