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
A shift in the average high-temperature occurs in December, reducing from a fresh 52.9°F (11.6°C) in November to a frosty 43.7°F (6.5°C). During the month of December, the nighttime temperature falls to an average of 31.3°F (-0.4°C).Humidity
The average relative humidity in December is 80%.Rainfall
In December, the rain falls for 13.3 days. Throughout December, 3.03" (77mm) of precipitation is accumulated. In Sulphur, during the entire year, the rain falls for 170.6 days and collects up to 35.59" (904mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Sulphur, in December, during 7.5 snowfall days, 2.09" (53mm) of snow is typically accumulated. Throughout the year, there are 33.6 snowfall days, and 10.2" (259mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:40 am and sunset at 5:20 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 5:30 pm EST.
Sunshine
In Sulphur, the average sunshine in December is 4.3h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 2 during December translates into these guidelines:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Boost your sun resistance with garments that are densely woven yet spacious. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days in Sulphur?
How many hours of daylight does Sulphur have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Sulphur have in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Sulphur, KY
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (38.3°F).
- Average low temperature in December: 31.3°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in December
Sulphur, KY
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Sulphur, KY
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is January (8.2mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in December
Sulphur, KY
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are August and October (74%).
Average rainfall in December
Sulphur, KY
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is April (3.94").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in December
Sulphur, KY
- Average rainfall days in December: 13.3 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is February (11 days).
Average snowfall in December
Sulphur, KY
- Average snowfall in December: 2.09"
The month with the highest snowfall is February (2.72").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Sulphur, KY
- Average snowfall days in December: 7.5 days
The month with the highest number of snowfall days is January (9.4 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
Sulphur, KY
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Sulphur, KY
- Average sunshine days in December: 12.5 days
The month with the most sunshine days is October (17.9 days).
The month with the least sunshine days is May (9.9 days).
Average UV index in December
Sulphur, KY
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Sulphur, KY
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Sulphur, KY
- Average visibility in December: 5mi
The months with the highest visibility are April, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July and December (5mi).
Sulphur, Kentucky, USA
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