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
Trenton's December weather comes with a decrease in average high-temperatures, moving from a cool 50.5°F (10.3°C) in November to a cold 38.1°F (3.4°C). Throughout December nights, Trenton registers an average low-temperature of 25.2°F (-3.8°C).Humidity
In Trenton, the average relative humidity in December is 78%.Rainfall
In Trenton, in December, it is raining for 6 days, with typically 1.22" (31mm) of accumulated precipitation. In Trenton, during the entire year, the rain falls for 131.5 days and collects up to 26.85" (682mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Trenton, in December, during 4.6 snowfall days, 1.26" (32mm) of snow is typically accumulated. In Trenton, during the entire year, snow falls for 22.4 days and aggregates up to 11.18" (284mm) of snow.Daylight
The month with the shortest days in Trenton is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:17 am and sunset at 4:49 pm. On the last day of December, in Trenton, sunrise is at 7:36 am and sunset at 4:59 pm CST.
Sunshine
The average sunshine in December in Trenton is 5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Trenton. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. To guard against the harmful effects of the Sun, minimize exposure during midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in Trenton in December?
What is the average humidity in December in Trenton?
How many days does it rain in December in Trenton?
How many days does it snow in December in Trenton?
What is the month with the shortest days in Trenton?
How many hours of daylight does Trenton have in December?
When is the sunrise / sunset in December in Trenton?
How many hours of sunshine does Trenton have in December?
When is the lowest UV index in Trenton?
What is the UV index reading in December in Trenton?
Average temperature in December
Trenton, MO
- Average high temperature in December: 38.1°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (33.1°F).
- Average low temperature in December: 25.2°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure in December
Trenton, MO
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Trenton, MO
- Average wind speed in December: 9.2mph
The windiest month (with the highest average wind speed) is March (10mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in December
Trenton, MO
- Average humidity in December: 78%
The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Trenton, MO
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is June (3.9").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in December
Trenton, MO
- Average rainfall days in December: 6 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in December
Trenton, MO
- Average snowfall in December: 1.26"
The month with the highest snowfall is January (3.7").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Trenton, MO
- Average snowfall days in December: 4.6 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Trenton, MO
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Trenton, MO
- Average sunshine days in December: 20.5 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in December
Trenton, MO
- 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
Trenton, MO
- Average cloud cover in December: 45
The months with the most cloud cover are January and March (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Trenton, MO
- 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, Missouri, USA
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