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 arrival of December corresponds with a temperature reduction, down from November's fresh 54.9°F (12.7°C) to a frosty 45.5°F (7.5°C). The month of December records an average low-temperature of 33.6°F (0.9°C).Humidity
The average relative humidity in December is 78%.Rainfall
In Clay, in December, during 8.9 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. In Clay, Kentucky, during the entire year, the rain falls for 143.8 days and collects up to 22.68" (576mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Clay, in December, snow falls for 2.6 days, with typically accumulated 0.35" (9mm) of snow. Throughout the year, there are 12.2 snowfall days, and 2.09" (53mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 6:47 am and sunset at 4:33 pm. On the last day of December, sunrise is at 7:05 am and sunset at 4:43 pm CST.
Sunshine
In December, the average sunshine in Clay is 4.8h.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 value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. To guard against the harmful effects of the Sun, minimize exposure during midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December in Clay?
When are sunrise and sunset in December?
How many hours of sunshine does Clay have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Clay, KY
- Average high temperature in December: 45.5°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 (40.5°F).
- Average low temperature in December: 33.6°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).
Average pressure in December
Clay, KY
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Clay, KY
- Average wind speed in December: 9mph
The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
Clay, KY
- Average humidity in December: 78%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Clay, KY
- Average rainfall in December: 1.61"
The wettest month (with the highest rainfall) is April (2.56").
The driest month (with the least rainfall) is September (1.06").
Average rainfall days in December
Clay, KY
- Average rainfall days in December: 8.9 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is November (8.7 days).
Average snowfall in December
Clay, KY
- Average snowfall in December: 0.35"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Clay, KY
- Average snowfall days in December: 2.6 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
Clay, 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 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in December
Clay, KY
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is May (12 days).
Average UV index in December
Clay, 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
Clay, KY
- Average cloud cover in December: 50
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in December
Clay, 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).
Clay, Kentucky, USA
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