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 move into December indicates a slight reduction in the average high-temperature, down from November's cool 54°F (12.2°C) to a chilly 45.3°F (7.4°C). During December, Thelma records a consistent average nighttime temperature of 33.1°F (0.6°C).Humidity
February and December, with an average relative humidity of 80%, are the most humid months.Rainfall
In Thelma, in December, it is raining for 13.3 days, with typically 2.68" (68mm) of accumulated precipitation. Throughout the year, there are 173.4 rainfall days, and 30.24" (768mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Thelma, in December, during 6.6 snowfall days, 2.8" (71mm) of snow is typically accumulated. Throughout the year, there are 35.6 snowfall days, and 13.82" (351mm) of snow is accumulated.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:28 am and sunset at 5:12 pm. On the last day of December, sunrise is at 7:46 am and sunset at 5:22 pm EST.
Sunshine
The average sunshine in December is 4.5h.UV index
January, February 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 minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What are the most humid months?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Thelma have in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Thelma, KY
- Average high temperature in December: 45.3°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (40.3°F).
- Average low temperature in December: 33.1°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in December
Thelma, 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 (29.98"Hg).
Average wind speed in December
Thelma, KY
- Average wind speed in December: 6.2mph
The windiest months (with the highest average wind speed) are January, February and April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Thelma, KY
- Average humidity in December: 80%
The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
Thelma, KY
- Average rainfall in December: 2.68"
The wettest month (with the highest rainfall) is February (3.27").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in December
Thelma, KY
- Average rainfall days in December: 13.3 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (10.8 days).
Average snowfall in December
Thelma, KY
- Average snowfall in December: 2.8"
The month with the highest snowfall is February (3.78").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Thelma, KY
- Average snowfall days in December: 6.6 days
The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Thelma, KY
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 4h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Thelma, KY
- Average sunshine days in December: 13.1 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in December
Thelma, 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
Thelma, KY
- Average cloud cover in December: 54
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Thelma, KY
- Average visibility in December: 5mi
The months with the highest visibility are April, June, August, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, September and December (5mi).
Thelma, Kentucky, USA
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