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 sea temperature 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
In the transition to December, Norfolk observes a minor drop in the average high-temperature, shifting from a moderate 58.3°F (14.6°C) in November to a cool 51.4°F (10.8°C). Norfolk sees an average low-temperature of 40.5°F (4.7°C) during December.Humidity
In Norfolk, Virginia, the average relative humidity in December is 77%.Rainfall
In Norfolk, in December, during 10.8 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. Throughout the year, there are 151.9 rainfall days, and 20.35" (517mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Norfolk, in December, during 0.9 snowfall days, 0.24" (6mm) of snow is typically accumulated. In Norfolk, during the entire year, snow falls for 5.3 days and aggregates up to 1.18" (30mm) of snow.Ocean temperature
In Norfolk, in December, the average water temperature is 52.7°F (11.5°C).Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.
Daylight
The month with the shortest days in Norfolk is December, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 6:59 am and sunset at 4:48 pm. On the last day of December, sunrise is at 7:17 am and sunset at 4:59 pm EST.
Sunshine
The average sunshine in December is 5.5h.UV index
The average daily maximum UV index in December in Norfolk is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A maximum daily UV index of 3 during December morphs into the following directions:
Exercise prevention - Precautions against solar damage are endorsed. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Experience reduced UV exposure by about half when donning a wide-brim hat. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the water temperature in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Norfolk have in December?
What is the UV index intensity in December?
Average temperature in December
Norfolk, VA
- Average high temperature in December: 51.4°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (45.9°F).
- Average low temperature in December: 40.5°F
The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (34.7°F).
Average pressure in December
Norfolk, 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 (29.96"Hg).
Average wind speed in December
Norfolk, VA
- Average wind speed in December: 9.1mph
The windiest months (with the highest average wind speed) are March and April (10.5mph).
The calmest month (with the lowest average wind speed) is August (7.5mph).
Average humidity in December
Norfolk, VA
- Average humidity in December: 77%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are July and November (74%).
Average rainfall in December
Norfolk, VA
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is August (2.52").
The driest month (with the least rainfall) is November (1.1").
Average rainfall days in December
Norfolk, VA
- Average rainfall days in December: 10.8 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is November (8.3 days).
Average snowfall in December
Norfolk, VA
- Average snowfall in December: 0.24"
The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Norfolk, VA
- Average snowfall days in December: 0.9 days
The month with the highest number of snowfall days is January (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in December
Norfolk, VA
- Average sea temperature in December: 52.7°F
The best month for swimming (with the highest average sea temperature) is August (80°F).
The coldest month (with the lowest average sea temperature) is February (44.5°F).
Average daylight in December /
Average sunshine in December
Norfolk, VA
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 5h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in December
Norfolk, VA
- Average sunshine days in December: 19.1 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is August (10.8 days).
Average UV index in December
Norfolk, VA
- Average UV index in December: 3
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in December
Norfolk, VA
- Average cloud cover in December: 41
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in December
Norfolk, 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).
Norfolk, Virginia, USA
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