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
The transition into December involves a small decrease in the average high-temperature, dipping slightly from a fresh 52.2°F (11.2°C) in November to a frosty 43.2°F (6.2°C). The average low-temperature, in December, in Rock Enon, is a subzero cold 29.7°F (-1.3°C).Humidity
In December, the average relative humidity in Rock Enon is 78%.Rainfall
In December, the rain falls for 11 days. Throughout December, 2.4" (61mm) of precipitation is accumulated. Throughout the year, there are 167.2 rainfall days, and 29.61" (752mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Rock Enon, in December, during 4.5 snowfall days, 3.15" (80mm) of snow is typically accumulated. Throughout the year, in Rock Enon, there are 26.2 snowfall days, and 17.83" (453mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year in Rock Enon.On the first day of December, sunrise is at 7:14 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:00 pm EST.
Sunshine
In Rock Enon, Virginia, the average sunshine in December is 5.2h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Always opt for UVA and UVB-resistant sunglasses on radiant days. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold in Rock Enon during December?
What is the average humidity in December in Rock Enon?
How much does it rain in Rock Enon in December?
How many days does it snow in December in Rock Enon?
What is the month with the shortest days in Rock Enon?
What is the average length of the day in December in Rock Enon?
When are sunrise and sunset in December in Rock Enon?
How long on average sun shines in December in Rock Enon?
What are the months with the lowest UV index in Rock Enon?
How high is the UV index in December in Rock Enon?
Average temperature in December
Rock Enon, VA
- Average high temperature in December: 43.2°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in December: 29.7°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in December
Rock Enon, VA
- Average pressure in December: 30.11"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
Rock Enon, VA
- Average wind speed in December: 6.1mph
The windiest month (with the highest average wind speed) is March (7mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Rock Enon, VA
- Average humidity in December: 78%
The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is July (73%).
Average rainfall in December
Rock Enon, VA
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is January (1.97").
Average rainfall days in December
Rock Enon, VA
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in December
Rock Enon, VA
- Average snowfall in December: 3.15"
The month with the highest snowfall is February (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Rock Enon, VA
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rock Enon, VA
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Rock Enon, VA
- Average sunshine days in December: 16.7 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (10 days).
Average UV index in December
Rock Enon, VA
- 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, November and December (UV index 2).
Average cloud cover in December
Rock Enon, VA
- Average cloud cover in December: 46
The months with the most cloud cover are February, March and December (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Rock Enon, VA
- Average visibility in December: 6mi
The months with the highest visibility are February, April, June, July, August, November and December (6mi).
The months with the lowest visibility are January, March, May, September and October (5mi).
Rock Enon, Virginia, USA
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