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 brings a slight decrease in the average high-temperature, shifting from a fresh 51.8°F (11°C) in November to a frosty 43.5°F (6.4°C). In the month of December, the temperature in Rock Creek generally rests at an average low of 31.1°F (-0.5°C).Humidity
In Rock Creek, West Virginia, the average relative humidity in December is 81%.Rainfall
In Rock Creek, in December, it is raining for 9.5 days, with typically 1.57" (40mm) of accumulated precipitation. Throughout the year, in Rock Creek, there are 135.9 rainfall days, and 16.46" (418mm) of precipitation is accumulated.Snowfall
Months with snowfall in Rock Creek, West Virginia, are January through May, October through December. In December, it is snowing for 5.4 days. Throughout December, 2.05" (52mm) of snow is accumulated. Throughout the year, in Rock Creek, there are 30.3 snowfall days, and 8.66" (220mm) of snow is accumulated.Daylight
December has the shortest days of the year in Rock Creek, West Virginia, with an average of 9h and 36min of daylight.On the first day of December in Rock Creek, West Virginia, sunrise is at 7:23 am and sunset at 5:06 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:16 pm EST.
Sunshine
In December, the average sunshine is 4.5h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: A typical high UV index of 2 in December suggests the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Frequently asked questions
How cold is it in Rock Creek in December?
What is the average humidity in December in Rock Creek?
How many days does it rain in December in Rock Creek?
How much does it snow in Rock Creek in December?
What is the month with the shortest days in Rock Creek?
What is the average length of the day in December in Rock Creek?
When is the sunrise / sunset in December in Rock Creek?
How long on average sun shines in December in Rock Creek?
What are the months with the lowest UV index in Rock Creek?
What is the UV index intensity in December in Rock Creek?
Average temperature in December
Rock Creek, WV
- Average high temperature in December: 43.5°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in December
Rock Creek, 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
Rock Creek, WV
- Average wind speed in December: 6.4mph
The windiest months (with the highest average wind speed) are January and February (7mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in December
Rock Creek, 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 (77%).
Average rainfall in December
Rock Creek, WV
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is May (1.85").
The driest month (with the least rainfall) is September (0.71").
Average rainfall days in December
Rock Creek, WV
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in December
Rock Creek, WV
- Average snowfall in December: 2.05"
The month with the highest snowfall is March (2.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Rock Creek, WV
- Average snowfall days in December: 5.4 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rock Creek, 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 3min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Rock Creek, WV
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (12.6 days).
Average UV index in December
Rock Creek, 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
Rock Creek, WV
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Rock Creek, WV
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Rock Creek, West Virginia, USA
Weather forecast for your location
2. Allow the app to use your location
