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 sea temperature 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
With December's arrival, Trenton's weather changes as the average high-temperature falls from a chilly 45.7°F (7.6°C) in November to a cold 35.8°F (2.1°C). Nighttime temperature reflects an average dip to a subzero cold 28.4°F (-2°C) in December, subtly cooler than its daytime highs.Humidity
In Trenton, the average relative humidity in December is 82%.Rainfall
The month with the least rainfall is December, when the rain falls for 7.7 days and typically collects 1.26" (32mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. In Trenton, in December, during 6.7 snowfall days, 1.57" (40mm) of snow is typically accumulated. In Trenton, during the entire year, snow falls for 37.5 days and aggregates up to 12.24" (311mm) of snow.Ocean temperature
In Trenton, the average seawater temperature in December is 38.1°F (3.4°C).Note: In swimming undertakings, this is deemed life-threatening and highly risky. The cold water induces intense discomfort and leads to swift hyperventilation. A specialized swimsuit is indispensable to decrease thermal injuries.
Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:42 am and sunset at 5:01 pm. On the last day of December, sunrise is at 8:01 am and sunset at 5:11 pm EST.
Sunshine
The average sunshine in December is 3.6h.UV index
December is the month with the lowest UV index in Trenton, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. To guard against the harmful effects of the Sun, minimize exposure during midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
What is the driest month?
How much does it rain in Trenton in December?
How much does it snow in December?
How cold is the water in December in Trenton?
What is the month with the shortest days?
How many hours of daylight does Trenton have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Trenton have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Trenton, MI
- Average high temperature in December: 35.8°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in December: 28.4°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Trenton, MI
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Trenton, MI
- Average wind speed in December: 10.7mph
The windiest months (with the highest average wind speed) are January and November (10.8mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in December
Trenton, MI
- Average humidity in December: 82%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Trenton, MI
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is December (1.26").
Average rainfall days in December
Trenton, MI
- Average rainfall days in December: 7.7 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in December
Trenton, MI
- Average snowfall in December: 1.57"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Trenton, MI
- Average snowfall days in December: 6.7 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in December
Trenton, MI
- Average sea temperature in December: 38.2°F
The best month for swimming (with the highest average sea temperature) is August (75.4°F).
The coldest month (with the lowest average sea temperature) is February (32.7°F).
Average daylight in December /
Average sunshine in December
Trenton, MI
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 3h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Trenton, MI
- Average sunshine days in December: 16.8 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in December
Trenton, MI
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Trenton, MI
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in December
Trenton, MI
- 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, Michigan, USA
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