January weather forecast
Trenton, MO

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Weather in January

January, like December, in Trenton, Missouri, is another cold winter month, with an average temperature varying between 33.1°F (0.6°C) and 19.2°F (-7.1°C).

Temperature

January tends to be the coldest month, with temperatures averaging a daily high of 33.1°F (0.6°C) and a low of 19.2°F (-7.1°C).

Humidity

The average relative humidity in January in Trenton, Missouri, is 78%.

Rainfall

The month with the least rainfall in Trenton, Missouri, is January, when the rain falls for 4.8 days and typically collects 0.94" (24mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. The month with the most snowfall is January, when snow falls for 6.8 days and typically aggregates up to 3.7" (94mm) of snow.

Daylight

The average length of the day in January in Trenton is 9h and 43min.
On the first day of the month, sunrise is at 7:36 am and sunset at 4:59 pm. On the last day of January, sunrise is at 7:24 am and sunset at 5:31 pm CST.

Sunshine

With an average of 4.7h of sunshine, January has the least sunshine of the year in Trenton.

UV index

January, February, November 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 threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily high UV index of 2 in January leads to these guidelines:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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Frequently asked questions

What is the coldest month in Trenton?

Temperature records in Trenton mark January as the coldest month, with highs averaging 33.1°F (0.6°C) and lows at 19.2°F (-7.1°C).

How cold is January in Trenton?

The average high-temperature and low-temperature in Trenton, Missouri, during January are 33.1°F (0.6°C) and 19.2°F (-7.1°C) respectively.

What is the average humidity in January in Trenton?

The average relative humidity in January in Trenton is 78%.

What is the driest month in Trenton?

The month with the least rainfall is January, when the rain falls for 4.8 days and typically collects 0.94" (24mm) of precipitation.

How many days does it rain in January in Trenton?

In January, in Trenton, Missouri, the rain falls for 4.8 days. Throughout January, 0.94" (24mm) of precipitation is accumulated.

What is the snowiest month in Trenton?

January is the month with the most snowfall in Trenton. Snow falls for 6.8 days and accumulates 3.7" (94mm) of snow.

How much does it snow in Trenton in January?

In Trenton, in January, during 6.8 snowfall days, 3.7" (94mm) of snow is typically accumulated.

How many hours of daylight does Trenton have in January?

In January, the average day length in Trenton is 9h and 43min.

When is the sunrise / sunset in January in Trenton?

In January, on the first day of the month, sunrise is at 7:36 am and sunset at 4:59 pm. On the last day of the month, in Trenton, sunrise is at 7:24 am and sunset at 5:31 pm CST.

What is the month with the least sunshine in Trenton?

With an average of 4.7h of sunshine, January has the least sunshine of the year in Trenton, Missouri.

How long on average sun shines in January in Trenton?

In January, the average sunshine duration in Trenton, Missouri, is 4.7h.

What is the month with the lowest UV index in Trenton?

The months with the lowest UV index in Trenton are January, February, November and December, with an average maximum UV index of 2.

What is the UV index intensity in January in Trenton?

In January, the average daily maximum UV index in Trenton, Missouri, is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
38.1°F 3.4°C
33.1°F 0.6°C
37.4°F 3°C
Average low temperature
25.2°F -3.8°C
19.2°F -7.1°C
22.8°F -5.1°C
Average pressure
30.13" 765mmHg
30.16" 766mmHg
30.14" 766mmHg
Average wind speed
9.2mph 14.8km/h
9.7mph 15.6km/h
9.8mph 15.8km/h
Average max. wind speed
9.8mph 15.8km/h
10.4mph 16.7km/h
10.4mph 16.7km/h
Average wind speed gusts
15mph 24.1km/h
15.8mph 25.4km/h
15.6mph 25.1km/h
Average humidity
78%
78%
76%
Average rainfall
1.22" 31mm
0.94" 24mm
1.02" 26mm
Average rainfall days
6
4.8
4.4
Average snowfall
1.26" 32mm
3.7" 94mm
2.87" 73mm
Average snowfall days
4.6
6.8
5.7
Average daylight
9h 2min
9h 4min
10h 4min
Average sunshine
5h 0min
4h 4min
5h 1min
Average sunshine days
20.5
20.4
17.3
Average UV index
2
2
2
Average cloud cover
45%
49%
47%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Trenton, MO

Average temperature in January - Trenton, MO
  • Average high temperature in January: 33.1°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 January: 19.2°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).

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Average pressure in January
Trenton, MO

Average pressure in January - Trenton, MO
  • Average pressure in January: 30.16"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).

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Average wind speed in January
Trenton, MO

Average wind speed in January - Trenton, MO
  • Average wind speed in January: 9.7mph

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).

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Average humidity in January
Trenton, MO

Average humidity in January - Trenton, MO
  • Average humidity in January: 78%

The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in January
Trenton, MO

Average rainfall in January - Trenton, MO
  • Average rainfall in January: 0.94"

The wettest month (with the highest rainfall) is June (3.9").
The driest month (with the least rainfall) is January (0.94").

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Average rainfall days in January
Trenton, MO

Average rainfall days in January - Trenton, MO
  • Average rainfall days in January: 4.8 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).

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Average snowfall in January
Trenton, MO

Average snowfall in January - Trenton, MO
  • Average snowfall in January: 3.7"

The month with the highest snowfall is January (3.7").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Trenton, MO

Average snowfall days in January - Trenton, MO
  • Average snowfall days in January: 6.8 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).

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Average daylight in January /
Average sunshine in January
Trenton, MO

Average daylight in January / Average sunshine in January - Trenton, MO
  • Average daylight in January: 9h and 4min

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 January: 4h and 4min

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).

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Average sunshine days in January
Trenton, MO

Average sunshine days in January - Trenton, MO
  • Average sunshine days in January: 20.4 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).

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Average UV index in January
Trenton, MO

Average UV index in January - Trenton, MO
  • Average UV index in January: 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).

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Average cloud cover in January
Trenton, MO

Average cloud cover in January - Trenton, MO
  • Average cloud cover in January: 49

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).

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Average visibility in January
Trenton, MO

Average visibility in January - Trenton, MO
  • 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).

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Trenton, Missouri, USA

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