January weather forecast
Trenton, MI

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Weather in January

January, the same as December, in Trenton, Michigan, is a freezing cold winter month, with an average temperature varying between 19.8°F (-6.8°C) and 29.5°F (-1.4°C).

Temperature

Trenton's temperature records reveal January as the coldest month, marked by average highs of 29.5°F (-1.4°C) and lows of 19.8°F (-6.8°C).

Humidity

The average relative humidity in January is 84%.

Rainfall

In Trenton, during January, the rain falls for 6.6 days and regularly aggregates up to 1.38" (35mm) of precipitation. In Trenton, during the entire year, the rain falls for 151.6 days and collects up to 26.97" (685mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In January, it is snowing for 10.3 days. Throughout January, 2.87" (73mm) of snow is 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 January, the average ocean temperature is 33.6°F (0.9°C).
Note: During swimming, this state is an instant threat to life. Breathing is uncontrollable, and coherent thought processes nearly vanish. A specialized swimsuit is crucial to minimize thermal dissipation.

Daylight

In Trenton, the average length of the day in January is 9h and 31min.
On the first day of January, sunrise is at 8:01 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 5:45 pm EST.

Sunshine

The month with the least sunshine is January, with an average of 3.1h of sunshine.

UV index

The average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 2 in January translates into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. During bright days, sunglasses that offer UVA and UVB defense are recommended. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

With average temperatures fluctuating between a high of 29.5°F (-1.4°C) and a low of 19.8°F (-6.8°C), January stands out as the coldest month.

How cold is it in January?

The average high-temperature and low-temperature during January are 29.5°F (-1.4°C) and 19.8°F (-6.8°C) respectively.

What is the average humidity in January?

In Trenton, the average relative humidity in January is 84%.

How much does it rain in January?

In Trenton, during January, the rain falls for 6.6 days and regularly aggregates up to 1.38" (35mm) of precipitation.

How much does it snow in January?

In Trenton, in January, during 10.3 snowfall days, 2.87" (73mm) of snow is typically accumulated.

What is the water temperature in January?

In Trenton, the average seawater temperature in January is 33.6°F (0.9°C). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

How many hours of daylight does Trenton have in January?

In January, the average day length is 9h and 31min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 8:01 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 5:45 pm EST.

What is the month with the least sunshine?

With an average of 3.1h of sunshine, January has the least sunshine of the year.

How long on average sun shines in January?

The average sunshine duration in January in Trenton is 3.1h.

What is the UV index reading in January?

The average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Trenton, MI

Average temperature in January - Trenton, MI
  • Average high temperature in January: 29.5°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 January: 19.8°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 January
Trenton, MI

Average pressure in January - Trenton, MI
  • Average pressure in January: 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 January
Trenton, MI

Average wind speed in January - Trenton, MI
  • Average wind speed in January: 10.8mph

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 January
Trenton, MI

Average humidity in January - Trenton, MI
  • Average humidity in January: 84%

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is October (75%).

Average rainfall in January
Trenton, MI

Average rainfall in January - Trenton, MI
  • Average rainfall in January: 1.38"

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 January
Trenton, MI

Average rainfall days in January - Trenton, MI
  • Average rainfall days in January: 6.6 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 January
Trenton, MI

Average snowfall in January - Trenton, MI
  • Average snowfall in January: 2.87"

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 January
Trenton, MI

Average snowfall days in January - Trenton, MI
  • Average snowfall days in January: 10.3 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 January
Trenton, MI

Average sea temperature in January - Trenton, MI
  • Average sea temperature in January: 33.6°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 January /
Average sunshine in January
Trenton, MI

Average daylight in January / Average sunshine in January - Trenton, MI
  • Average daylight in January: 9h and 3min

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 January: 3h and 1min

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 January
Trenton, MI

Average sunshine days in January - Trenton, MI
  • Average sunshine days in January: 15.7 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 January
Trenton, MI

Average UV index in January - Trenton, MI
  • Average UV index in January: 2

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 January
Trenton, MI

Average cloud cover in January - Trenton, MI
  • Average cloud cover in January: 67

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 January
Trenton, MI

Average visibility in January - Trenton, MI
  • Average visibility in January: 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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