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
In the transition to December, Dyson observes a minor drop in the average high-temperature, shifting from an enjoyable 61.7°F (16.5°C) in November to a fresh 55.2°F (12.9°C). Nighttime temperatures in December average to a wintry 39.7°F (4.3°C).Humidity
The most humid month is December, with an average relative humidity of 77%.Rainfall
In December, the rain falls for 11.1 days. Throughout December, 2.99" (76mm) of precipitation is accumulated. Throughout the year, there are 146 rainfall days, and 28.31" (719mm) of precipitation is accumulated.Snowfall
In Dyson, snow does not fall in April through December.Daylight
December has the shortest days of the year, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 7:15 am and sunset at 5:18 pm. On the last day of December, sunrise is at 7:33 am and sunset at 5:28 pm EST.
Sunshine
With an average of 5.3h of sunshine, December has the least sunshine of the year.UV index
In Dyson, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 3 during December translates into the following guidance:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the most humid month?
What is the average humidity in December?
How much 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 Dyson have in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Dyson have in December?
What is the UV index intensity in December in Dyson?
Average temperature in December
Dyson, SC
- Average high temperature in December: 55.2°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (51.8°F).
- Average low temperature in December: 39.7°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in December
Dyson, 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
Dyson, SC
- Average wind speed in December: 7mph
The windiest months (with the highest average wind speed) are February and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Dyson, 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 (70%).
Average rainfall in December
Dyson, SC
- Average rainfall in December: 2.99"
The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in December
Dyson, SC
- Average rainfall days in December: 11.1 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is October (8.3 days).
Average snowfall in December
Dyson, SC
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Dyson, SC
- Average snowfall days in December: 0.1 days
The months with the highest number of snowfall days are January and February (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
Dyson, 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 54min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in December
Dyson, SC
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is July (12.1 days).
Average UV index in December
Dyson, SC
- Average UV index in December: 3
The months with the highest UV index are June and August (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in December
Dyson, SC
- Average cloud cover in December: 43
The month with the most cloud cover is December (Cloud cover 43).
The months with the least cloud cover are June and October (Cloud cover 29).
Average visibility in December
Dyson, 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).
Dyson, South Carolina, USA
Weather forecast for your location
2. Allow the app to use your location