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 shows a mild decline in the average high-temperature, falling from November's fresh 52.9°F (11.6°C) to a chilly 43.9°F (6.6°C). Ryan, during December nights, observes an average temperature of 32.2°F (0.1°C).Humidity
The average relative humidity in December is 81%.Rainfall
In December, the rain falls for 12.7 days. Throughout December, 2.68" (68mm) of precipitation is accumulated. Throughout the year, there are 169.9 rainfall days, and 31.54" (801mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Ryan. In Ryan, during December, snow falls for 6.9 days and regularly aggregates up to 2.52" (64mm) of snow. In Ryan, West Virginia, during the entire year, snow falls for 34.5 days and aggregates up to 12.76" (324mm) of snow.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year in Ryan, West Virginia.On the first day of December in Ryan, sunrise is at 7:25 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:14 pm EST.
Sunshine
The average sunshine in December is 4h.UV index
The months with the lowest UV index in Ryan are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: A maximum high UV index of 2 in December translates into the following recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is December in Ryan?
What is the average humidity in December in Ryan?
How many days does it rain in December in Ryan?
How many days does it snow in December in Ryan?
What is the month with the shortest days in Ryan?
How many hours of daylight does Ryan have in December?
When is the sunrise / sunset in December in Ryan?
How long on average sun shines in December in Ryan?
What are the months with the lowest UV index in Ryan?
What is the UV index intensity in December in Ryan?
Average temperature in December
Ryan, WV
- Average high temperature in December: 43.9°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in December: 32.2°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 (25°F).
Average pressure in December
Ryan, 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 (29.97"Hg).
Average wind speed in December
Ryan, WV
- Average wind speed in December: 6.1mph
The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in December
Ryan, WV
- Average humidity in December: 81%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is August (75%).
Average rainfall in December
Ryan, WV
- Average rainfall in December: 2.68"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in December
Ryan, WV
- Average rainfall days in December: 12.7 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is November (10.6 days).
Average snowfall in December
Ryan, WV
- Average snowfall in December: 2.52"
The month with the highest snowfall is January (3.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Ryan, WV
- Average snowfall days in December: 6.9 days
The month with the highest number of snowfall days is January (11.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ryan, 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 0min
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
Ryan, WV
- Average sunshine days in December: 12.8 days
The month with the most sunshine days is October (17.9 days).
The months with the least sunshine days are February and May (10.2 days).
Average UV index in December
Ryan, 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 and December (UV index 2).
Average cloud cover in December
Ryan, WV
- Average cloud cover in December: 59
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
Ryan, 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).
Ryan, West Virginia, USA
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