December weather forecastKilmarnock, VA
December
Weather in December
The first month of the winter, December, is still a chilly month in Kilmarnock, Virginia, with temperature in the range of an average high of 49.6°F (9.8°C) and an average low of 36.1°F (2.3°C).Temperature
Transition into December subtly marks a drop in the average high-temperature, moderately moving from a mild 57.2°F (14°C) in November to a frosty 49.6°F (9.8°C). In Kilmarnock, December is marked by an average low-temperature of 36.1°F (2.3°C).Humidity
December is the most humid month, with an average relative humidity of 79%.Rainfall
In Kilmarnock, in December, during 9.6 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. Throughout the year, there are 132.5 rainfall days, and 15.47" (393mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In December, it is snowing for 1.5 days. Throughout December, 0.35" (9mm) of snow is accumulated. Throughout the year, there are 8.3 snowfall days, and 2.17" (55mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 7:02 am and sunset at 4:47 pm. On the last day of December, sunrise is at 7:20 am and sunset at 4:57 pm EST.
Sunshine
In December, the average sunshine is 5.3h.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 minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: In December, an average UV index of 2 transforms into the following instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Stay sun-safe with clothing that is both closely woven and worn loosely. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Kilmarnock, VA
- Average high temperature in December: 49.6°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (44.6°F).
- Average low temperature in December: 36.1°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).
Average pressure in December
Kilmarnock, VA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Kilmarnock, VA
- Average wind speed in December: 6.5mph
The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Kilmarnock, VA
- Average humidity in December: 79%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is July (73%).
Average rainfall in December
Kilmarnock, VA
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is August (1.85").
The driest month (with the least rainfall) is September (0.94").
Average rainfall days in December
Kilmarnock, VA
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in December
Kilmarnock, VA
- Average snowfall in December: 0.35"
The months with the highest snowfall are January and February (0.55").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Kilmarnock, VA
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Kilmarnock, VA
- Average daylight in December: 9h and 36min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 5h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in December
Kilmarnock, VA
- Average sunshine days in December: 19.2 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is May (14.5 days).
Average UV index in December
Kilmarnock, VA
- Average UV index in December: 2
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Kilmarnock, VA
- Average cloud cover in December: 44
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Kilmarnock, VA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).





