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
The average high-temperature shows a slight dip in December, from November's cool 50.9°F (10.5°C) to a cold 42.4°F (5.8°C). Throughout December, MacArthur witnesses a nighttime temperature average of 30.4°F (-0.9°C).Humidity
In MacArthur, West Virginia, the average relative humidity in December is 81%.Rainfall
In MacArthur, in December, during 12.5 rainfall days, 3.5" (89mm) of precipitation is typically accumulated. Throughout the year, there are 189.8 rainfall days, and 36.54" (928mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in MacArthur. In MacArthur, during December, snow falls for 12 days and regularly aggregates up to 7.36" (187mm) of snow. In MacArthur, West Virginia, during the entire year, snow falls for 60.8 days and aggregates up to 39.41" (1001mm) of snow.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year in MacArthur.On the first day of the month, sunrise is at 7:22 am and sunset at 5:06 pm. On the last day of December, in MacArthur, sunrise is at 7:40 am and sunset at 5:16 pm EST.
Sunshine
In December, the average sunshine in MacArthur is 4.6h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in MacArthur. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold in MacArthur during December?
What is the average humidity in December in MacArthur?
How many days does it rain in December in MacArthur?
How much does it snow in MacArthur in December?
What is the month with the shortest days in MacArthur?
What is the average length of the day in December in MacArthur?
What time are sunrise and sunset in December in MacArthur?
How long on average sun shines in December in MacArthur?
What is the month with the lowest UV index in MacArthur?
How high is the UV index in December in MacArthur?
Average temperature in December
MacArthur, WV
- Average high temperature in December: 42.4°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in December: 30.4°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in December
MacArthur, WV
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
MacArthur, WV
- Average wind speed in December: 6.8mph
The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
MacArthur, WV
- Average humidity in December: 81%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are April, June, July, August and November (78%).
Average rainfall in December
MacArthur, WV
- Average rainfall in December: 3.5"
The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in December
MacArthur, WV
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is May (22.3 days).
The month with the least rainy days is November (11.4 days).
Average snowfall in December
MacArthur, WV
- Average snowfall in December: 7.36"
The month with the highest snowfall is January (8.7").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
MacArthur, WV
- Average snowfall days in December: 12 days
The month with the highest number of snowfall days is January (15.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
MacArthur, WV
- 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: 4h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
MacArthur, WV
- Average sunshine days in December: 10.7 days
The month with the most sunshine days is November (15.1 days).
The month with the least sunshine days is May (7 days).
Average UV index in December
MacArthur, WV
- Average UV index in December: 2
The months with the highest UV index are June 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
MacArthur, WV
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in December
MacArthur, WV
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February and September (4mi).
MacArthur, West Virginia, USA
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