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's arrival subtly correlates with a reduction in the average high-temperature, down from a moderate 55.8°F (13.2°C) in November to a chilly 47.3°F (8.5°C). December nights observe an average temperature dip to a cold 34.7°F (1.5°C).Humidity
With an average relative humidity of 80%, December is the most humid month.Rainfall
In Rockbridge, during December, the rain falls for 13.8 days and regularly aggregates up to 3.58" (91mm) of precipitation. Throughout the year, there are 182.5 rainfall days, and 41.85" (1063mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In Rockbridge, during December, snow falls for 4.9 days and regularly aggregates up to 1.38" (35mm) of snow. Throughout the year, there are 23.4 snowfall days, and 8.82" (224mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 6:37 am and sunset at 4:26 pm. On the last day of December, in Rockbridge, sunrise is at 6:55 am and sunset at 4:36 pm CST.
Sunshine
The average sunshine in December is 4.5h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Rockbridge. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Rockbridge have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Rockbridge, KY
- Average high temperature in December: 47.3°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (42.1°F).
- Average low temperature in December: 34.7°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in December
Rockbridge, KY
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Rockbridge, KY
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is February (8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in December
Rockbridge, KY
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are April, October and November (76%).
Average rainfall in December
Rockbridge, KY
- Average rainfall in December: 3.58"
The wettest months (with the highest rainfall) are February and July (4.25").
The driest month (with the least rainfall) is September (2.4").
Average rainfall days in December
Rockbridge, KY
- Average rainfall days in December: 13.8 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (11.2 days).
Average snowfall in December
Rockbridge, KY
- Average snowfall in December: 1.38"
The month with the highest snowfall is February (2.4").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Rockbridge, KY
- Average snowfall days in December: 4.9 days
The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rockbridge, KY
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 4h and 3min
The months with the most sunshine are June and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in December
Rockbridge, KY
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is July (9.5 days).
Average UV index in December
Rockbridge, KY
- 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, February and December (UV index 2).
Average cloud cover in December
Rockbridge, KY
- Average cloud cover in December: 53
The month with the most cloud cover is February (Cloud cover 55).
The months with the least cloud cover are June and August (Cloud cover 30).
Average visibility in December
Rockbridge, KY
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are January, May, July and August (5mi).
Rockbridge, Kentucky, USA
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