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
The start of December comes with a reduction in the average high-temperature, receding from a chilly 45.7°F (7.6°C) in November to a wintry 35.8°F (2.1°C). Trenton's nocturnal December readings average at a subzero cold 28.4°F (-2°C), showing little variation from the daytime temperatures.Humidity
In December, the average relative humidity in Trenton is 82%.Rainfall
December is the month with the least rainfall. Rain falls for 7.7 days and accumulates 1.26" (32mm) of precipitation.Snowfall
January through May, November and December are months with snowfall in Trenton. In Trenton, during December, snow falls for 6.7 days and regularly aggregates up to 1.57" (40mm) of snow. Throughout the year, in Trenton, Michigan, there are 37.5 snowfall days, and 12.24" (311mm) of snow is accumulated.Ocean temperature
In December, the average ocean temperature in Trenton is 38.1°F (3.4°C).Note: For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.
Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Trenton.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, in Trenton, sunrise is at 8:01 am and sunset at 5:11 pm EST.
Sunshine
In Trenton, the average sunshine in December is 3.6h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: In December, a regular UV index of 1 translates into these guidelines:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Frequently asked questions
How cold is December in Trenton?
What is the average humidity in December in Trenton?
What is the driest month 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 ocean temperature 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 are sunrise and sunset in December in Trenton?
How long on average sun shines in December in Trenton?
What is the month with the lowest UV index in Trenton?
What is the UV index reading in December in Trenton?
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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