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
The commencement of December indicates a gentle shift in the average high-temperature, receding from November's comfortable 65.3°F (18.5°C) to a mild 59.4°F (15.2°C). Jamestown's average low-temperature in December is measured at a frosty 45.5°F (7.5°C).Humidity
August and December, with an average relative humidity of 78%, are the most humid months in Jamestown, South Carolina.Rainfall
In Jamestown, during December, the rain falls for 10.6 days and regularly aggregates up to 4.69" (119mm) of precipitation. Throughout the year, there are 179.5 rainfall days, and 40.79" (1036mm) of precipitation is accumulated.Snowfall
Months with snowfall are January, February and December. December is the first month it typically snows in Jamestown. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 1 snowfall days, and 0.31" (8mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 10h and 0min of daylight.On the first day of December, sunrise is at 7:04 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:21 pm EST.
Sunshine
With an average of 5.7h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index in Jamestown are January and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 3 suggests these recommendations:
Undertake precautions - Guarding against sun damage is counselled. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the average December temperature in Jamestown?
What is the most humid month in Jamestown?
What is the average humidity in December in Jamestown?
How much does it rain in Jamestown in December?
When does it start to snow in Jamestown?
What is the month with the shortest days in Jamestown?
How many hours of daylight does Jamestown have in December?
What time are sunrise and sunset in December in Jamestown?
What is the month with the least sunshine in Jamestown?
How long on average sun shines in December in Jamestown?
What are the months with the lowest UV index in Jamestown?
What is the UV index intensity in December in Jamestown?
Average temperature in December
Jamestown, SC
- Average high temperature in December: 59.4°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 (55.8°F).
- Average low temperature in December: 45.5°F
The month with the highest average low temperature is July (74.8°F).
The coldest month (with the lowest average low temperature) is January (40.8°F).
Average pressure in December
Jamestown, 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
Jamestown, SC
- Average wind speed in December: 6.5mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in December
Jamestown, SC
- Average humidity in December: 78%
The months with the highest relative humidity are August and December (78%).
The months with the lowest relative humidity are January and March (74%).
Average rainfall in December
Jamestown, SC
- Average rainfall in December: 4.69"
The wettest month (with the highest rainfall) is August (6.46").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days in December
Jamestown, SC
- Average rainfall days in December: 10.6 days
The months with the highest number of rainy days are July and August (23.2 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in December
Jamestown, SC
- Average snowfall in December: 0.04"
The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Jamestown, SC
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (0.5 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
Jamestown, 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 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in December
Jamestown, SC
- Average sunshine days in December: 18.4 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is July (5.5 days).
Average UV index in December
Jamestown, 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
Jamestown, SC
- Average cloud cover in December: 40
The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in December
Jamestown, 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).
Jamestown, South Carolina, USA
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