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 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 brings a minor shift in the average high-temperature, adjusting from a pleasant 68.9°F (20.5°C) in November to an enjoyable 62.8°F (17.1°C). Throughout the nights in December, Viviani experiences an average low-temperature of 47.3°F (8.5°C).Humidity
The average relative humidity in December is 77%.Rainfall
In December, the rain falls for 8.5 days. Throughout December, 1.18" (30mm) of precipitation is accumulated. In Viviani, during the entire year, the rain falls for 139 days and collects up to 15.12" (384mm) of precipitation.Daylight
December has the shortest days of the year, with an average of 10h and 12min of daylight.On the first day of the month, sunrise is at 7:11 am and sunset at 5:27 pm. On the last day of December, sunrise is at 7:28 am and sunset at 5:38 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 5.6h of sunshine.UV index
The average daily maximum UV index in December is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 4 in December translates into these instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. Around midday, solar radiation is most harmful; hence, exposure should be limited. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the average humidity in December?
How much does it rain in December?
What is the month with the shortest days?
How many hours of daylight does Viviani have in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Viviani have in December?
What is the UV index intensity in December?
Average temperature in December
Viviani, GA
- Average high temperature in December: 62.8°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in December: 47.3°F
The month with the highest average low temperature is August (74.1°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).
Average pressure in December
Viviani, GA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in December
Viviani, GA
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Viviani, GA
- Average humidity in December: 77%
The month with the highest relative humidity is August (78%).
The month with the lowest relative humidity is January (71%).
Average rainfall in December
Viviani, GA
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is August (2.4").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in December
Viviani, GA
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is August (18.7 days).
The month with the least rainy days is November (6.2 days).
Average daylight in December /
Average sunshine in December
Viviani, GA
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in December
Viviani, GA
- Average sunshine days in December: 19.8 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is August (7.8 days).
Average UV index in December
Viviani, GA
- Average UV index in December: 4
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in December
Viviani, GA
- Average cloud cover in December: 43
The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in December
Viviani, 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).
Viviani, Georgia, USA
Weather forecast for your location
2. Allow the app to use your location