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
December's arrival correlates with a reduction in the average high-temperature, down from a fresh 51.4°F (10.8°C) in November to a cold 42.1°F (5.6°C). Throughout December, an average nighttime temperature of 30.7°F (-0.7°C) is experienced.Humidity
January, February and December, with an average relative humidity of 82%, are the most humid months.Rainfall
In December, the rain falls for 12.6 days. Throughout December, 2.4" (61mm) of precipitation is accumulated. Throughout the year, there are 167.8 rainfall days, and 26.77" (680mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Rockport. In Rockport, in December, during 9.2 snowfall days, 1.97" (50mm) of snow is typically accumulated. Throughout the year, in Rockport, there are 42.5 snowfall days, and 11.97" (304mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:26 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:13 pm EST.
Sunshine
In December, the average sunshine is 3.9h.UV index
The months with the lowest UV index in Rockport are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Guard yourself! Snow reflection 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 during 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 in Rockport?
What is the month with the shortest days?
How many hours of daylight does Rockport have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Rockport have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Rockport, WV
- Average high temperature in December: 42.1°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in December: 30.7°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
Rockport, WV
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Rockport, WV
- Average wind speed in December: 6.2mph
The windiest month (with the highest average wind speed) is February (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Rockport, WV
- Average humidity in December: 82%
The months with the highest relative humidity are January, February and December (82%).
The month with the lowest relative humidity is August (75%).
Average rainfall in December
Rockport, WV
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in December
Rockport, WV
- Average rainfall days in December: 12.6 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is November (10.1 days).
Average snowfall in December
Rockport, WV
- Average snowfall in December: 1.97"
The month with the highest snowfall is January (3.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Rockport, WV
- Average snowfall days in December: 9.2 days
The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rockport, WV
- 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: 3h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Rockport, WV
- Average sunshine days in December: 11.4 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is February (9.6 days).
Average UV index in December
Rockport, WV
- 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
Rockport, WV
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Rockport, WV
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The month with the lowest visibility is January (4mi).
Rockport, West Virginia, USA
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