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
Severn's transition into December involves a gentle shift in temperature, receding from a mild 57.4°F (14.1°C) in November to a cool 50.2°F (10.1°C). Severn's average low-temperature is measured at a cold 38.3°F (3.5°C) during December.Humidity
December is the most humid month, with an average relative humidity of 78%.Rainfall
In Severn, during December, the rain falls for 12.2 days and regularly aggregates up to 2.6" (66mm) of precipitation. Throughout the year, there are 165.3 rainfall days, and 34.25" (870mm) of precipitation is accumulated.Snowfall
Months with snowfall in Severn are January through March, November and December. In Severn, during December, snow falls for 1.1 days and regularly aggregates up to 0.51" (13mm) of snow. In Severn, during the entire year, snow falls for 8.3 days and aggregates up to 4.13" (105mm) of snow.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year in Severn.On the first day of December, sunrise is at 7:01 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:58 pm EST.
Sunshine
In December, the average sunshine in Severn is 5.4h.UV index
January 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 minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Severn?
What is the most humid month in Severn?
What is the average humidity in December in Severn?
How much does it rain in Severn in December?
How much does it snow in Severn in December?
What is the month with the shortest days in Severn?
How many hours of daylight does Severn have in December?
When is the sunrise / sunset in December in Severn?
How many hours of sunshine does Severn have in December?
What are the months with the lowest UV index in Severn?
What is the UV index reading in December in Severn?
Average temperature in December
Severn, VA
- Average high temperature in December: 50.2°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in December: 38.3°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).
Average pressure in December
Severn, VA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Severn, VA
- Average wind speed in December: 8mph
The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in December
Severn, VA
- Average humidity in December: 78%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (72%).
Average rainfall in December
Severn, VA
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is September (2.4").
Average rainfall days in December
Severn, VA
- Average rainfall days in December: 12.2 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is November (9.6 days).
Average snowfall in December
Severn, VA
- Average snowfall in December: 0.51"
The month with the highest snowfall is February (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Severn, VA
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is January (3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Severn, VA
- Average daylight in December: 9h and 4min
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 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in December
Severn, VA
- Average sunshine days in December: 17.4 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (11.5 days).
Average UV index in December
Severn, VA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Severn, VA
- Average cloud cover in December: 42
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Severn, VA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Severn, Virginia, USA
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