January weather forecast and climate
Trenton, MO

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

Temperature

January is the coldest month, with an average high-temperature of 33.1°F (0.6°C) and an average low-temperature of 19.2°F (-7.1°C).

Humidity

In January, the average relative humidity is 78%.

Rainfall

January is the month with the least rainfall in Trenton. Rain falls for 4.8 days and accumulates 0.94" (24mm) of precipitation.

Snowfall

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

Daylight

In Trenton, the average length of the day in January is 9.7h.

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 in Trenton. A UV Index estimate of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV rays for ordinary individuals.
Note: In January, the average maximum UV index of 2 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the coldest month in Trenton?

With an average high-temperature of 33.1°F (0.6°C) and an average low-temperature of 19.2°F (-7.1°C), January is the coldest month.

What is the temperature in January in Trenton?

The average high-temperature, in January, is 33.1°F (0.6°C), while the average low-temperature is 19.2°F (-7.1°C).

What is the average humidity in January in Trenton?

In Trenton, the average relative humidity in January is 78%.

How many days does it rain in January in Trenton?

In Trenton, during January, the rain falls for 4.8 days and regularly aggregates up to 0.94" (24mm) of precipitation.

What is the driest month in Trenton?

January is the month with the least rainfall in Trenton. Rain falls for 4.8 days and accumulates 0.94" (24mm) of precipitation.

How much does it snow in Trenton in January?

In January, in Trenton, it is snowing for 6.8 days. Throughout January, 3.7" (94mm) of snow 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 many hours of daylight does Trenton have in January?

In Trenton, the average length of the day in January is 9.7h.

What is the month with the least sunshine in Trenton?

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

How long on average sun shines in January in Trenton?

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

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

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

How high is the UV index in January in Trenton?

In Trenton, Missouri, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low health threat from unprotected exposure to the UV radiation.
Average temperature in January - Trenton, MO
  • Average high temperature in January: 0.6°C

The warmest month (with the highest average high temperature) is July (29.2°C).
The month with the lowest average high temperature is January (0.6°C).

  • Average low temperature in January: -7.1°C

The month with the highest average low temperature is July (19.5°C).
The coldest month (with the lowest average low temperature) is January (-7.1°C).

Average pressure in January - Trenton, MO
  • Average pressure in January: 1021.5mbar

The month with the highest atmospheric pressure is January (1021.5mbar).
The month with the lowest atmospheric pressure is June (1012.2mbar).

Average wind speed in January - Trenton, MO
  • Average wind speed in January: 15.6km/h

The windiest month (with the highest average wind speed) is March (16.1km/h).
The calmest month (with the lowest average wind speed) is August (10.3km/h).

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%).

Average rainfall in January - Trenton, MO
  • Average rainfall in January: 24mm

The wettest month (with the highest rainfall) is June (99mm).
The driest month (with the least rainfall) is January (24mm).

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).

Average snowfall in January - Trenton, MO
  • Average snowfall in January: 94mm

The month with the highest snowfall is January (94mm).
Months with the least snowfall are June, July, August and September (0mm).

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).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January / Average sunshine in January - Trenton, MO
  • Average daylight in January: 9.7h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in January: 4.7h

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is January (Average sunshine: 4.7h).

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).

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

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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

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 January - Trenton, MO
  • Average visibility in January: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).