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 comes with a mild decrease in the average high-temperature, moving subtly from a frosty 48.4°F (9.1°C) in November to an icy 39.9°F (4.4°C). An average low-temperature of 27.3°F (-2.6°C) is noted during the month of December.Humidity
The average relative humidity in December is 83%.Rainfall
In Mill Creek, in December, during 14.9 rainfall days, 3.54" (90mm) of precipitation is typically accumulated. Throughout the year, there are 197.4 rainfall days, and 37.87" (962mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Mill Creek, in December, snow falls for 13.2 days, with typically accumulated 7.01" (178mm) of snow. In Mill Creek, during the entire year, snow falls for 67 days and aggregates up to 41.3" (1049mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of December in Mill Creek, sunrise is at 7:19 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:08 pm EST.
Sunshine
In December, the average sunshine is 4.2h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: In December, a daily UV index of 2 turns into the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Safeguard your eyes, ears, and face from sun rays with the aid of 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
Is December cold?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Mill Creek have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Mill Creek, WV
- Average high temperature in December: 39.9°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in December
Mill Creek, WV
- Average pressure in December: 30.12"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
Mill Creek, WV
- Average wind speed in December: 7.2mph
The windiest months (with the highest average wind speed) are January and February (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Mill Creek, WV
- Average humidity in December: 83%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are June, July, August and November (79%).
Average rainfall in December
Mill Creek, WV
- Average rainfall in December: 3.54"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in December
Mill Creek, WV
- Average rainfall days in December: 14.9 days
The month with the highest number of rainy days is May (21.8 days).
The month with the least rainy days is February (11.5 days).
Average snowfall in December
Mill Creek, WV
- Average snowfall in December: 7.01"
The month with the highest snowfall is February (9.84").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Mill Creek, WV
- Average snowfall days in December: 13.2 days
The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mill Creek, WV
- 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: 4h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Mill Creek, WV
- Average sunshine days in December: 8.5 days
The month with the most sunshine days is October (12.7 days).
The month with the least sunshine days is January (6.5 days).
Average UV index in December
Mill Creek, WV
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Mill Creek, WV
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in December
Mill Creek, 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).
Mill Creek, West Virginia, USA
Weather forecast for your location
2. Allow the app to use your location