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
Royston in December undergoes a slight reduction in the average high-temperature, shifting from November's comfortable 61.2°F (16.2°C) to a fresh 54.1°F (12.3°C). In December, Royston experiences a temperature dip to an average of 39.4°F (4.1°C) at night.Humidity
With an average relative humidity of 77%, December is the most humid month in Royston, Georgia.Rainfall
December is the month with the most rainfall. Rain falls for 12.3 days and accumulates 3.98" (101mm) of precipitation.Snowfall
Months with snowfall in Royston are January through March and December. The month with the most snowfall is December, when snow falls for 0.5 days and typically aggregates up to 1.38" (35mm) of snow.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:20 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 5:33 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 5.3h of sunshine.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Royston in December?
What is the most humid month?
What is the average humidity in December?
What is the rainiest month in Royston?
How much does it rain in December?
What is the snowiest month?
When does it start to snow?
What is the month with the shortest days?
How many hours of daylight does Royston have in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine in Royston?
How many hours of sunshine does Royston have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Royston, GA
- Average high temperature in December: 54.1°F
The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (50.4°F).
- Average low temperature in December: 39.4°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (34.7°F).
Average pressure in December
Royston, GA
- Average pressure in December: 30.14"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in December
Royston, GA
- Average wind speed in December: 6.3mph
The windiest months (with the highest average wind speed) are January and February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Royston, GA
- Average humidity in December: 77%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).
Average rainfall in December
Royston, GA
- Average rainfall in December: 3.98"
The wettest month (with the highest rainfall) is December (3.98").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in December
Royston, GA
- Average rainfall days in December: 12.3 days
The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is October (9.6 days).
Average snowfall in December
Royston, GA
- Average snowfall in December: 1.38"
The month with the highest snowfall is December (1.38").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Royston, GA
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Royston, GA
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in December
Royston, GA
- Average sunshine days in December: 16.8 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in December
Royston, GA
- Average UV index in December: 2
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Royston, GA
- Average cloud cover in December: 42
The months with the most cloud cover are February and December (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in December
Royston, 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).
Royston, Georgia, USA
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