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 heralds a minor drop in average high-temperature, sliding from November's mild 60.3°F (15.7°C) to a cool 53.4°F (11.9°C). During the month of December, Mean Crossroads's nighttime temperature lowers to an average of 38.3°F (3.5°C).Humidity
With an average relative humidity of 76%, December is the most humid month.Rainfall
December is the month with the most rainfall. Rain falls for 10.8 days and accumulates 3.43" (87mm) of precipitation.Snowfall
January through March and December are months with snowfall. December is the month with the most snowfall. Snow falls for 0.4 days and accumulates 2.2" (56mm) 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 December, sunrise is at 7:16 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:26 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 are January and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 2 during December leads to these instructions:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. 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 are the temperatures in December?
What is the most humid month?
What is the average humidity in December in Mean Crossroads?
What is the wettest month?
How many days does it rain in December?
When does it snow the most?
When does it start snowing?
What is the month with the shortest days?
How many hours of daylight does Mean Crossroads have in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Mean Crossroads have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Mean Crossroads, SC
- Average high temperature in December: 53.4°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 (49.6°F).
- Average low temperature in December: 38.3°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (33.8°F).
Average pressure in December
Mean Crossroads, 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
Mean Crossroads, SC
- Average wind speed in December: 6.1mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Mean Crossroads, SC
- Average humidity in December: 76%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (69%).
Average rainfall in December
Mean Crossroads, SC
- Average rainfall in December: 3.43"
The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in December
Mean Crossroads, SC
- Average rainfall days in December: 10.8 days
The month with the highest number of rainy days is August (16.6 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in December
Mean Crossroads, SC
- Average snowfall in December: 2.2"
The month with the highest snowfall is December (2.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Mean Crossroads, SC
- Average snowfall days in December: 0.4 days
The month with the highest number of snowfall days is February (1.3 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
Mean Crossroads, SC
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
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 24min).
Average sunshine days in December
Mean Crossroads, SC
- Average sunshine days in December: 19 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (12.2 days).
Average UV index in December
Mean Crossroads, 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
Mean Crossroads, SC
- Average cloud cover in December: 42
The months with the most cloud cover are February and December (Cloud cover 42).
The months with the least cloud cover are June and July (Cloud cover 29).
Average visibility in December
Mean Crossroads, 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).
Mean Crossroads, South Carolina, USA
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