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
A minor decrease in the average high-temperature is observed during December, shifting from a fresh 55.2°F (12.9°C) in November to a frosty 46.9°F (8.3°C). Dumfries, during the nights of December, experiences an average temperature drop to a wintry 33.6°F (0.9°C).Humidity
October and December, with an average relative humidity of 78%, are the most humid months in Dumfries.Rainfall
In Dumfries, in December, it is raining for 10.4 days, with typically 2.6" (66mm) of accumulated precipitation. In Dumfries, during the entire year, the rain falls for 155.6 days and collects up to 31.61" (803mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Dumfries. In Dumfries, Virginia, during December, snow falls for 1.8 days and regularly aggregates up to 1.34" (34mm) of snow. Throughout the year, there are 13.5 snowfall days, and 8.23" (209mm) 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 the month, sunrise is at 7:08 am and sunset at 4:48 pm. On the last day of December, sunrise is at 7:26 am and sunset at 4:58 pm EST.
Sunshine
The months with the least sunshine are February and December, with an average of 5.1h 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 estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily high UV index of 2 in December leads to these guidelines:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. It's recommended to limit sun exposure when its radiation is at its peak during midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What are the temperatures in Dumfries in December?
What are the most humid months in Dumfries?
What is the average humidity in December in Dumfries?
How many days does it rain in December in Dumfries?
How many days does it snow in December in Dumfries?
What is the month with the shortest days in Dumfries?
What is the average length of the day in December in Dumfries?
What time are sunrise and sunset in December in Dumfries?
What are the months with the least sunshine in Dumfries?
How many hours of sunshine does Dumfries have in December?
What is the month with the lowest UV index in Dumfries?
What is the UV index reading in December in Dumfries?
Average temperature in December
Dumfries, VA
- Average high temperature in December: 46.9°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in December: 33.6°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).
Average pressure in December
Dumfries, 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
Dumfries, VA
- Average wind speed in December: 6.1mph
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 (4.7mph).
Average humidity in December
Dumfries, VA
- Average humidity in December: 78%
The months with the highest relative humidity are October and December (78%).
The months with the lowest relative humidity are January, April and July (73%).
Average rainfall in December
Dumfries, VA
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is August (3.66").
The driest month (with the least rainfall) is January (1.97").
Average rainfall days in December
Dumfries, VA
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is November (8.7 days).
Average snowfall in December
Dumfries, VA
- Average snowfall in December: 1.34"
The month with the highest snowfall is January (2.52").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Dumfries, VA
- Average snowfall days in December: 1.8 days
The month with the highest number of snowfall days is January (4.9 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
Dumfries, VA
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
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 30min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).
Average sunshine days in December
Dumfries, VA
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.5 days).
Average UV index in December
Dumfries, 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
Dumfries, VA
- Average cloud cover in December: 46
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Dumfries, VA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Dumfries, Virginia, USA
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