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
As South Union enters December, the average high-temperature subtly lowers from the a refreshing 55.6°F (13.1°C) of November to a frosty 47.3°F (8.5°C). During the nights in December, South Union experiences a consistent average temperature of 34.5°F (1.4°C).Humidity
March, May and December, with an average relative humidity of 79%, are the most humid months.Rainfall
In December, the rain falls for 12.6 days. Throughout December, 2.95" (75mm) of precipitation is accumulated. Throughout the year, in South Union, there are 171.5 rainfall days, and 37.2" (945mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In December, it is snowing for 3 days. Throughout December, 0.83" (21mm) of snow is accumulated. Throughout the year, in South Union, there are 14.8 snowfall days, and 5.55" (141mm) of snow is accumulated.Daylight
The month with the shortest days in South Union is December, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 6:41 am and sunset at 4:30 pm. On the last day of December, sunrise is at 6:59 am and sunset at 4:40 pm CST.
Sunshine
In South Union, the average sunshine in December is 4.6h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 during December translates into the following directions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
What are December temperatures in South Union?
What are the most humid months in South Union?
What is the average humidity in December in South Union?
How much does it rain in South Union in December?
How much does it snow in South Union in December?
What is the month with the shortest days in South Union?
What is the average length of the day in December in South Union?
What time are sunrise and sunset in December in South Union?
How long on average sun shines in December in South Union?
What is the month with the lowest UV index in South Union?
How high is the UV index in December in South Union?
Average temperature in December
South Union, KY
- Average high temperature in December: 47.3°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (42.3°F).
- Average low temperature in December: 34.5°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in December
South Union, KY
- 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 (29.96"Hg).
Average wind speed in December
South Union, KY
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is February (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in December
South Union, KY
- Average humidity in December: 79%
The months with the highest relative humidity are March, May and December (79%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
South Union, KY
- Average rainfall in December: 2.95"
The wettest month (with the highest rainfall) is July (4.13").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in December
South Union, KY
- Average rainfall days in December: 12.6 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (10.2 days).
Average snowfall in December
South Union, KY
- Average snowfall in December: 0.83"
The month with the highest snowfall is February (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
South Union, KY
- Average snowfall days in December: 3 days
The month with the highest number of snowfall days is January (4.2 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
South Union, KY
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 4h and 4min
The months with the most sunshine are June and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in December
South Union, KY
- Average sunshine days in December: 16 days
The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in December
South Union, KY
- 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
South Union, KY
- Average cloud cover in December: 52
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in December
South Union, KY
- 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).
South Union, Kentucky, USA
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