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 ushers in a minute temperature change, with average high-temperatures reducing from November's moderate 58.6°F (14.8°C) to a fresh 50.4°F (10.2°C). An average low-temperature of 37.6°F (3.1°C) marks the nights in Williston, Tennessee throughout December.Humidity
The average relative humidity in December in Williston is 79%.Rainfall
In Williston, in December, during 9.6 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, in Williston, Tennessee, there are 132.5 rainfall days, and 16.26" (413mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Williston, in December, snow falls for 0.7 days, with typically accumulated 0.04" (1mm) of snow. Throughout the year, in Williston, there are 4.9 snowfall days, and 0.87" (22mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 6:48 am and sunset at 4:45 pm. On the last day of December, sunrise is at 7:05 am and sunset at 4:55 pm CST.
Sunshine
The average sunshine in December in Williston is 4.9h.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Williston. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: During December, 3 as the daily maximum UV index converts into the following advice:
Make use of precautions - Suggestions to resist sunburn are communicated. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Williston in December?
What is the average humidity in December in Williston?
How much does it rain in Williston in December?
How many days does it snow in December in Williston?
What is the month with the shortest days in Williston?
What is the average length of the day in December in Williston?
When is the sunrise / sunset in December in Williston?
How many hours of sunshine does Williston have in December?
What is the month with the lowest UV index in Williston?
What is the UV index reading in December in Williston?
Average temperature in December
Williston, TN
- Average high temperature in December: 50.4°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (46.4°F).
- Average low temperature in December: 37.6°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (32.7°F).
Average pressure in December
Williston, TN
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Williston, TN
- Average wind speed in December: 8.2mph
The windiest month (with the highest average wind speed) is February (9.1mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).
Average humidity in December
Williston, TN
- Average humidity in December: 79%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Williston, TN
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is July (1.89").
The driest months (with the least rainfall) are September and November (0.75").
Average rainfall days in December
Williston, TN
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in December
Williston, TN
- Average snowfall in December: 0.04"
The month with the highest snowfall is February (0.39").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Williston, TN
- Average snowfall days in December: 0.7 days
The month with the highest number of snowfall days is February (1.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Williston, TN
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Williston, TN
- Average sunshine days in December: 20.3 days
The month with the most sunshine days is October (21.6 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in December
Williston, TN
- Average UV index in December: 3
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Williston, TN
- Average cloud cover in December: 46
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in December
Williston, TN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Williston, Tennessee, USA
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