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 shift from November to December coincides with a small decrease in the average high-temperature, down to a frosty 47.3°F (8.5°C) from a mild 55.9°F (13.3°C). Throughout the December nights, Trenton encounters a low-temperature of 34.7°F (1.5°C).Humidity
The months with the highest humidity are March, May and December, with an average relative humidity of 79%.Rainfall
In Trenton, during December, the rain falls for 9.1 days and regularly aggregates up to 1.14" (29mm) of precipitation. In Trenton, during the entire year, the rain falls for 135.7 days and collects up to 14.96" (380mm) of precipitation.Snowfall
Months with snowfall in Trenton are January through March and December. The months with the most snowfall are January, March and December, with an average 0.2" (5mm) of accumulated snow.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:43 am and sunset at 4:33 pm. On the last day of December, sunrise is at 7:01 am and sunset at 4:43 pm CST.
Sunshine
In Trenton, the average sunshine in December is 4.8h.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 low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high UV index of 2 in December translates into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
When does it snow the most?
When does it start to snow?
What is the month with the shortest days?
How many hours of daylight does Trenton have in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Trenton, KY
- Average high temperature in December: 47.3°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 (42.4°F).
- Average low temperature in December: 34.7°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 (28.9°F).
Average pressure in December
Trenton, KY
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Trenton, KY
- Average wind speed in December: 8.1mph
The windiest month (with the highest average wind speed) is February (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Trenton, 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 (73%).
Average rainfall in December
Trenton, KY
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is September (0.75").
Average rainfall days in December
Trenton, KY
- Average rainfall days in December: 9.1 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in December
Trenton, KY
- Average snowfall in December: 0.2"
The months with the highest snowfall are January, March and December (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Trenton, KY
- Average snowfall days in December: 1.7 days
The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Trenton, 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 5min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Trenton, KY
- Average sunshine days in December: 19.6 days
The month with the most sunshine days is January (20.4 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in December
Trenton, 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
Trenton, KY
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in December
Trenton, 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).
Trenton, Kentucky, USA
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