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 Dillon, the average high-temperature in December slightly decreases from an enjoyable 61.9°F (16.6°C) in November to a still refreshing 55.4°F (13°C). During December, the nighttime temperature averages of 40.8°F (4.9°C).Humidity
The average relative humidity in December in Dillon is 76%.Rainfall
In Dillon, in December, it is raining for 10.5 days, with typically 3.03" (77mm) of accumulated precipitation. In Dillon, South Carolina, during the entire year, the rain falls for 159.1 days and collects up to 32.17" (817mm) of precipitation.Snowfall
January through March and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.24" (6mm) of snow. Throughout the year, there are 1.6 snowfall days, and 1.65" (42mm) 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 the month, sunrise is at 7:06 am and sunset at 5:07 pm. On the last day of December, sunrise is at 7:23 am and sunset at 5:17 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 5.5h of sunshine.UV index
In December, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: A typical high UV index of 3 in December suggests the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What is the average humidity in December?
How much does it rain in December?
When does it start snowing?
What is the month with the shortest days?
How many hours of daylight does Dillon have in December?
When are sunrise and sunset in December in Dillon?
What is the month with the least sunshine?
How long on average sun shines in December?
How high is the UV index in December?
Average temperature in December
Dillon, SC
- Average high temperature in December: 55.4°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (52.2°F).
- Average low temperature in December: 40.8°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).
Average pressure in December
Dillon, SC
- Average pressure in December: 30.13"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Dillon, SC
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is April (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in December
Dillon, SC
- Average humidity in December: 76%
The months with the highest relative humidity are May and September (78%).
The months with the lowest relative humidity are January and November (73%).
Average rainfall in December
Dillon, SC
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is August (3.66").
The driest month (with the least rainfall) is January (1.54").
Average rainfall days in December
Dillon, SC
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is October (7.8 days).
Average snowfall in December
Dillon, SC
- Average snowfall in December: 0.24"
The month with the highest snowfall is February (1.02").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Dillon, SC
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is February (0.8 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
Dillon, 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 3min
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 30min).
Average sunshine days in December
Dillon, SC
- Average sunshine days in December: 19 days
The month with the most sunshine days is October (21.6 days).
The month with the least sunshine days is July (9.6 days).
Average UV index in December
Dillon, SC
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in December
Dillon, SC
- Average cloud cover in December: 41
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in December
Dillon, 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).
Dillon, South Carolina, USA
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