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
Transitioning from November to December involves a subtle drop in average high-temperatures, descending from a fresh 52.3°F (11.3°C) to a frosty 43.5°F (6.4°C). Millwood encounters a steady low-temperature average of 30.4°F (-0.9°C) throughout the month of December.Humidity
The months with the highest humidity are May, October and December, with an average relative humidity of 78%.Rainfall
In Millwood, during December, the rain falls for 9.3 days and regularly aggregates up to 1.65" (42mm) of precipitation. In Millwood, during the entire year, the rain falls for 152.4 days and collects up to 23.5" (597mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 3 days. Throughout December, 1.54" (39mm) of snow is accumulated. Throughout the year, there are 19.9 snowfall days, and 9.69" (246mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:12 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:59 pm EST.
Sunshine
The months with the least sunshine in Millwood are January and December, with an average of 5h of sunshine.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 exposure to the Sun's UV rays for the ordinary person.Note: In December, a daily UV index of 2 turns into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. During bright days, sunglasses that offer UVA and UVB defense are recommended. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What are the most humid months?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
What are the months with the least sunshine?
How many hours of sunshine does Millwood have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Millwood, VA
- Average high temperature in December: 43.5°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 (38.3°F).
- Average low temperature in December: 30.4°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure in December
Millwood, 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
Millwood, VA
- Average wind speed in December: 6.3mph
The windiest months (with the highest average wind speed) are March and April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Millwood, VA
- Average humidity in December: 78%
The months with the highest relative humidity are May, October and December (78%).
The month with the lowest relative humidity is July (73%).
Average rainfall in December
Millwood, VA
- Average rainfall in December: 1.65"
The wettest months (with the highest rainfall) are May, July and August (2.68").
The driest month (with the least rainfall) is January (1.3").
Average rainfall days in December
Millwood, VA
- Average rainfall days in December: 9.3 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in December
Millwood, VA
- Average snowfall in December: 1.54"
The month with the highest snowfall is January (2.68").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Millwood, VA
- Average snowfall days in December: 3 days
The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Millwood, 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 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 5h and 0min).
Average sunshine days in December
Millwood, VA
- Average sunshine days in December: 18.4 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.5 days).
Average UV index in December
Millwood, 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
Millwood, VA
- Average cloud cover in December: 47
The months with the most cloud cover are March and December (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Millwood, VA
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, June, July, August and November (6mi).
The months with the lowest visibility are May, September, October and December (5mi).
Millwood, Virginia, USA
Weather forecast for your location
2. Allow the app to use your location