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
Sistersville's average high-temperature decreases in December, falling from a fresh 50.7°F (10.4°C) in November to a wintry 41.4°F (5.2°C). Sistersville records a steady low-temperature average of 29.3°F (-1.5°C) during December.Humidity
In Sistersville, the average relative humidity in December is 83%.Rainfall
In Sistersville, in December, during 13.5 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. In Sistersville, 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 Sistersville. In Sistersville, in December, during 10.2 snowfall days, 2.05" (52mm) of snow is typically accumulated. Throughout the year, in Sistersville, there are 46.7 snowfall days, and 11.38" (289mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of December in Sistersville, sunrise is at 7:26 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:10 pm EST.
Sunshine
In December, the average sunshine in Sistersville is 3.7h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In December, the maximum UV index of 1 suggests this advice:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
How cold is it in Sistersville in December?
What is the average humidity in December in Sistersville?
How much does it rain in Sistersville in December?
How much does it snow in Sistersville in December?
What is the month with the shortest days in Sistersville?
How many hours of daylight does Sistersville have in December?
When is the sunrise / sunset in December in Sistersville?
How many hours of sunshine does Sistersville have in December?
What is the month with the lowest UV index in Sistersville?
What is the UV index intensity in December in Sistersville?
Average temperature in December
Sistersville, 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
Sistersville, 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
Sistersville, 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
Sistersville, 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
Sistersville, 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
Sistersville, 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
Sistersville, 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
Sistersville, 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
Sistersville, 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
Sistersville, 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
Sistersville, 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
Sistersville, 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
Sistersville, WV
- Average visibility in December: 5mi
The month with the highest visibility is November (6mi).
The month with the lowest visibility is January (4mi).
Sistersville, West Virginia, USA
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