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
With December's onset, the weather shows a temperature decrease, transitioning from a cool 50.7°F (10.4°C) in November to an icy 41.4°F (5.2°C). During the nights in December, Allister observes an average low-temperature of 29.3°F (-1.5°C).Humidity
The average relative humidity in December in Allister is 83%.Rainfall
In Allister, during December, the rain falls for 13.5 days and regularly aggregates up to 2.13" (54mm) of precipitation. In Allister, during the entire year, the rain falls for 176.6 days and collects up to 25.91" (658mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Allister. In Allister, West Virginia, during December, snow falls for 10.2 days and regularly aggregates up to 2.05" (52mm) of snow. In Allister, during the entire year, snow falls for 46.7 days and aggregates up to 11.38" (289mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:24 am and sunset at 4:59 pm. On the last day of December, in Allister, sunrise is at 7:43 am and sunset at 5:08 pm EST.
Sunshine
In December, the average sunshine is 3.7h.UV index
December is the month with the lowest UV index in Allister, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index, 1 during December, leads to the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
How cold is it in Allister in December?
What is the average humidity in December in Allister?
How much does it rain in Allister in December?
How many days does it snow in December in Allister?
What is the month with the shortest days in Allister?
How many hours of daylight does Allister have in December?
When are sunrise and sunset in December in Allister?
How many hours of sunshine does Allister have in December?
What is the month with the lowest UV index in Allister?
How high is the UV index in December in Allister?
Average temperature in December
Allister, WV
- Average high temperature in December: 41.4°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in December
Allister, WV
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Allister, 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 (4.2mph).
Average humidity in December
Allister, WV
- Average humidity in December: 83%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (77%).
Average rainfall in December
Allister, WV
- Average rainfall in December: 2.13"
The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in December
Allister, WV
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is January (10.2 days).
Average snowfall in December
Allister, WV
- Average snowfall in December: 2.05"
The month with the highest snowfall is January (3.19").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Allister, WV
- Average snowfall days in December: 10.2 days
The month with the highest number of snowfall days is January (14.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Allister, WV
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 3h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in December
Allister, WV
- Average sunshine days in December: 10.5 days
The month with the most sunshine days is November (16.9 days).
The months with the least sunshine days are January and February (8.7 days).
Average UV index in December
Allister, WV
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Allister, WV
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Allister, WV
- Average visibility in December: 5mi
The month with the highest visibility is November (6mi).
The month with the lowest visibility is January (4mi).
Allister, West Virginia, USA
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