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 arrival of December corresponds with a minor reduction in the average high-temperature, down from November's cool 53.2°F (11.8°C) to a chilly 44.8°F (7.1°C). Whirlwind's average low-temperature in December is measured at a cold 32.7°F (0.4°C).Humidity
In Whirlwind, 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 Whirlwind, during the entire year, the rain falls for 166.7 days and collects up to 26.57" (675mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Whirlwind, in December, snow falls for 7.6 days, with typically accumulated 3.23" (82mm) of snow. Throughout the year, in Whirlwind, there are 38.3 snowfall days, and 14.53" (369mm) of snow is accumulated.Daylight
December has the shortest days of the year in Whirlwind, 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 Whirlwind, the average sunshine in December is 4.1h.UV index
The months with the lowest UV index in Whirlwind are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: The UV index of 2 during December leads to these advisories:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Frequently asked questions
What is the usual temperature for Whirlwind in December?
What is the average humidity in December in Whirlwind?
How many days does it rain in December in Whirlwind?
How many days does it snow in December in Whirlwind?
What is the month with the shortest days in Whirlwind?
How many hours of daylight does Whirlwind have in December?
What time are sunrise and sunset in December in Whirlwind?
How long on average sun shines in December in Whirlwind?
What is the month with the lowest UV index in Whirlwind?
How high is the UV index in December in Whirlwind?
Average temperature in December
Whirlwind, 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
Whirlwind, 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
Whirlwind, 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
Whirlwind, 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
Whirlwind, 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
Whirlwind, 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
Whirlwind, 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
Whirlwind, 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
Whirlwind, 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
Whirlwind, 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
Whirlwind, 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
Whirlwind, 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
Whirlwind, 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).
Whirlwind, West Virginia, USA
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