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 onset of December results in a small decrease in the average high-temperature, moderately receding from a comfortable 62.1°F (16.7°C) in November to a fresh 55.2°F (12.9°C). Throughout December, the average low-temperature in Rio dips to a cold 40.5°F (4.7°C).Humidity
December is the most humid month, with an average relative humidity of 78%.Rainfall
In Rio, during December, the rain falls for 13.4 days and regularly aggregates up to 4.06" (103mm) of precipitation. Throughout the year, in Rio, there are 179.6 rainfall days, and 39.84" (1012mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Rio, in December, snow falls for 0.5 days, with typically accumulated 0.08" (2mm) of snow. In Rio, Georgia, during the entire year, snow falls for 2.7 days and aggregates up to 0.94" (24mm) of snow.Daylight
The month with the shortest days is December, with an average of 10h and 0min of daylight.On the first day of December in Rio, sunrise is at 7:23 am and sunset at 5:30 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:40 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 5.1h of sunshine.UV index
January, February and December, with an average maximum UV index of 3, are months with the lowest UV index in Rio. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, a daily maximum UV index of 3 leads to the following instructions:
Guard yourself - An obligation to protect skin and eyes from harm exists. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the average December temperature in Rio?
What is the most humid month in Rio?
What is the average humidity in December in Rio?
How many days does it rain in December in Rio?
How much does it snow in Rio in December?
What is the month with the shortest days in Rio?
What is the average length of the day in December in Rio?
When are sunrise and sunset in December in Rio?
What is the month with the least sunshine in Rio?
How long on average sun shines in December in Rio?
When is the lowest UV index in Rio?
How high is the UV index in December in Rio?
Average temperature in December
Rio, GA
- Average high temperature in December: 55.2°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (52.2°F).
- Average low temperature in December: 40.5°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).
Average pressure in December
Rio, GA
- Average pressure in December: 30.15"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in December
Rio, GA
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in December
Rio, GA
- Average humidity in December: 78%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are October and November (72%).
Average rainfall in December
Rio, GA
- Average rainfall in December: 4.06"
The wettest month (with the highest rainfall) is August (4.61").
The driest month (with the least rainfall) is October (2.09").
Average rainfall days in December
Rio, GA
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is July (22.6 days).
The month with the least rainy days is October (9.3 days).
Average snowfall in December
Rio, GA
- Average snowfall in December: 0.08"
The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Rio, GA
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is January (1 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
Rio, GA
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in December
Rio, GA
- Average sunshine days in December: 16.4 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is July (7.4 days).
Average UV index in December
Rio, GA
- 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 and December (UV index 3).
Average cloud cover in December
Rio, GA
- Average cloud cover in December: 45
The month with the most cloud cover is December (Cloud cover 45).
The months with the least cloud cover are June, September and October (Cloud cover 31).
Average visibility in December
Rio, GA
- 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).
Rio, Georgia, USA
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