January weather forecast
Mount Vernon, MO

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Weather in January

January, like December, in Mount Vernon, Missouri, is an icy winter month, with an average temperature varying between 26.6°F (-3°C) and 42.3°F (5.7°C).

Temperature

During the coldest month, January, temperatures average a high of 42.3°F (5.7°C) and a low of 26.6°F (-3°C).

Humidity

The months with the lowest humidity are January, July, August and October, with an average relative humidity of 73%.

Rainfall

In Mount Vernon, in January, it is raining for 7.3 days, with typically 1.93" (49mm) of accumulated precipitation. In Mount Vernon, Missouri, during the entire year, the rain falls for 155.3 days and collects up to 35.59" (904mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall in Mount Vernon. In Mount Vernon, during January, snow falls for 5.1 days and regularly aggregates up to 2.13" (54mm) of snow. Throughout the year, there are 17.9 snowfall days, and 6.93" (176mm) of snow is accumulated.

Daylight

In January, the average length of the day in Mount Vernon is 9h and 58min.
On the first day of January in Mount Vernon, sunrise is at 7:28 am and sunset at 5:08 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:38 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 5.3h of sunshine.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 2 in January, converts into the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the coldest time of year in Mount Vernon?

Mount Vernon experiences its average lowest temperatures in January, reaching a peak of 42.3°F (5.7°C) and a minimum of 26.6°F (-3°C).

How cold does it get in Mount Vernon in January?

In Mount Vernon, in January, the average high-temperature is 42.3°F (5.7°C), and the average low-temperature is 26.6°F (-3°C).

What is the least humid month in Mount Vernon?

January, July, August and October, with an average relative humidity of 73%, are the least humid months in Mount Vernon.

What is the average humidity in January in Mount Vernon?

In January, the average relative humidity is 73%.

How many days does it rain in January in Mount Vernon?

In Mount Vernon, in January, during 7.3 rainfall days, 1.93" (49mm) of precipitation is typically accumulated.

How much does it snow in Mount Vernon in January?

In Mount Vernon, in January, during 5.1 snowfall days, 2.13" (54mm) of snow is typically accumulated.

How many hours of daylight does Mount Vernon have in January?

In January, the average day length in Mount Vernon, Missouri, is 9h and 58min.

What time are sunrise and sunset in January in Mount Vernon?

On the first day of January in Mount Vernon, sunrise is at 7:28 am and sunset at 5:08 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:38 pm CST.

What is the month with the least sunshine in Mount Vernon?

With an average of 5.3h of sunshine, January has the least sunshine of the year in Mount Vernon, Missouri.

How long on average sun shines in January in Mount Vernon?

The average sunshine duration in January in Mount Vernon is 5.3h.

What are the months with the lowest UV index in Mount Vernon?

The months with the lowest UV index in Mount Vernon are January and December, with an average maximum UV index of 2.

How high is the UV index in January in Mount Vernon?

In January, the average daily maximum UV index in Mount Vernon, Missouri, is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to Sun's UV rays.
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
Mount Vernon, MO

Average temperature in January - Mount Vernon, MO
  • Average high temperature in January: 42.3°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (42.3°F).

  • Average low temperature in January: 26.6°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).

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Average pressure in January
Mount Vernon, MO

Average pressure in January - Mount Vernon, MO
  • Average pressure in January: 30.17"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are April and June (29.93"Hg).

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Average wind speed in January
Mount Vernon, MO

Average wind speed in January - Mount Vernon, MO
  • Average wind speed in January: 9.9mph

The windiest months (with the highest average wind speed) are March and April (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

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Average humidity in January
Mount Vernon, MO

Average humidity in January - Mount Vernon, MO
  • Average humidity in January: 73%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, July, August and October (73%).

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Average rainfall in January
Mount Vernon, MO

Average rainfall in January - Mount Vernon, MO
  • Average rainfall in January: 1.93"

The wettest month (with the highest rainfall) is May (5.31").
The driest month (with the least rainfall) is February (1.69").

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Average rainfall days in January
Mount Vernon, MO

Average rainfall days in January - Mount Vernon, MO
  • Average rainfall days in January: 7.3 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in January
Mount Vernon, MO

Average snowfall in January - Mount Vernon, MO
  • Average snowfall in January: 2.13"

The month with the highest snowfall is February (2.24").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in January
Mount Vernon, MO

Average snowfall days in January - Mount Vernon, MO
  • Average snowfall days in January: 5.1 days

The month with the highest number of snowfall days is February (5.3 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
Mount Vernon, MO

Average daylight in January / Average sunshine in January - Mount Vernon, MO
  • Average daylight in January: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in January: 5h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).

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Average sunshine days in January
Mount Vernon, MO

Average sunshine days in January - Mount Vernon, MO
  • Average sunshine days in January: 19.3 days

The month with the most sunshine days is December (20.7 days).
The month with the least sunshine days is July (10.6 days).

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Average UV index in January
Mount Vernon, MO

Average UV index in January - Mount Vernon, MO
  • Average UV index in January: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in January
Mount Vernon, MO

Average cloud cover in January - Mount Vernon, MO
  • Average cloud cover in January: 42

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 26).

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Average visibility in January
Mount Vernon, MO

Average visibility in January - Mount Vernon, 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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Mount Vernon, Missouri, USA

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