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 onset of December is marked by a minor decrease in temperature, transitioning from a cool 53.2°F (11.8°C) in November to a frosty 44.8°F (7.1°C). In the month of December, the temperature in Halcyon generally rests at an average low of 32.7°F (0.4°C).Humidity
In Halcyon, the average relative humidity in December is 80%.Rainfall
In December, the rain falls for 12.5 days. Throughout December, 2.36" (60mm) of precipitation is accumulated. In Halcyon, during the entire year, the rain falls for 166.7 days and collects up to 26.57" (675mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Halcyon, in December, during 7.6 snowfall days, 3.23" (82mm) of snow is typically accumulated. Throughout the year, in Halcyon, West Virginia, there are 38.3 snowfall days, and 14.53" (369mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 7:26 am and sunset at 5:09 pm. On the last day of December, sunrise is at 7:44 am and sunset at 5:19 pm EST.
Sunshine
In Halcyon, the average sunshine in December is 4.1h.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 average individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. To guard against the harmful effects of the Sun, minimize exposure during midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Halcyon in December?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Halcyon have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Halcyon have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Halcyon, WV
- Average high temperature in December: 44.8°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in December: 32.7°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in December
Halcyon, 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
Halcyon, WV
- Average wind speed in December: 6mph
The windiest months (with the highest average wind speed) are January, February and April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in December
Halcyon, WV
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are August and November (75%).
Average rainfall in December
Halcyon, WV
- Average rainfall in December: 2.36"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is September (1.38").
Average rainfall days in December
Halcyon, WV
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is November (10.2 days).
Average snowfall in December
Halcyon, WV
- Average snowfall in December: 3.23"
The month with the highest snowfall is January (3.82").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Halcyon, WV
- Average snowfall days in December: 7.6 days
The month with the highest number of snowfall days is January (11.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Halcyon, WV
- Average daylight in December: 9h and 4min
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 36min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Halcyon, WV
- Average sunshine days in December: 12.7 days
The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in December
Halcyon, 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
Halcyon, WV
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Halcyon, 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).
Halcyon, West Virginia, USA
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