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
Rio Vista's December weather features a light decline in high-temperatures, reducing from a moderate 57°F (13.9°C) in November to a chilly 49.3°F (9.6°C). In December, Rio Vista experiences an average nighttime temperature of 35.4°F (1.9°C).Humidity
The months with the highest humidity in Rio Vista are February and December, with an average relative humidity of 79%.Rainfall
In Rio Vista, Tennessee, in December, it is raining for 8.8 days, with typically 1.22" (31mm) of accumulated precipitation. Throughout the year, in Rio Vista, there are 117.7 rainfall days, and 11.34" (288mm) of precipitation is accumulated.Snowfall
Months with snowfall in Rio Vista are January through March, October through December. In Rio Vista, in December, snow falls for 2.4 days, with typically accumulated 0.2" (5mm) of snow. In Rio Vista, during the entire year, snow falls for 13.1 days and aggregates up to 1.38" (35mm) of snow.Daylight
December has the shortest days of the year in Rio Vista, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 7:28 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 5:33 pm EST.
Sunshine
In Rio Vista, Tennessee, the average sunshine in December is 5.2h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Rio Vista. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 2 during December translates into the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Frequently asked questions
What is the average December temperature in Rio Vista?
What is the most humid month in Rio Vista?
What is the average humidity in December in Rio Vista?
How many days does it rain in December in Rio Vista?
How many days does it snow in December in Rio Vista?
What is the month with the shortest days in Rio Vista?
What is the average length of the day in December in Rio Vista?
What time are sunrise and sunset in December in Rio Vista?
How many hours of sunshine does Rio Vista have in December?
What are the months with the lowest UV index in Rio Vista?
What is the UV index intensity in December in Rio Vista?
Average temperature in December
Rio Vista, TN
- Average high temperature in December: 49.3°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (44.8°F).
- Average low temperature in December: 35.4°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in December
Rio Vista, TN
- Average pressure in December: 30.14"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Rio Vista, TN
- Average wind speed in December: 5.3mph
The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in December
Rio Vista, TN
- Average humidity in December: 79%
The months with the highest relative humidity are February and December (79%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in December
Rio Vista, TN
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is February (1.3").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in December
Rio Vista, TN
- Average rainfall days in December: 8.8 days
The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in December
Rio Vista, TN
- Average snowfall in December: 0.2"
The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in December
Rio Vista, TN
- Average snowfall days in December: 2.4 days
The months with the highest number of snowfall days are January and February (3.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rio Vista, 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: 5h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Rio Vista, TN
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is October (21.5 days).
The months with the least sunshine days are February and July (15.9 days).
Average UV index in December
Rio Vista, TN
- 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 and December (UV index 2).
Average cloud cover in December
Rio Vista, TN
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in December
Rio Vista, TN
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Rio Vista, Tennessee, USA
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