January weather forecast
Mount Vernon, IN

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Weather in January

January, like December, in Mount Vernon, Indiana, is an icy winter month, with an average temperature ranging between max 39.4°F (4.1°C) and min 26.4°F (-3.1°C).

Temperature

January is the month that records the lowest temperatures, with averages ranging from a high of 39.4°F (4.1°C) to a low of 26.4°F (-3.1°C).

Humidity

The average relative humidity in January in Mount Vernon is 77%.

Rainfall

In Mount Vernon, in January, it is raining for 10.3 days, with typically 2.76" (70mm) of accumulated precipitation. In Mount Vernon, Indiana, during the entire year, the rain falls for 169.9 days and collects up to 39.41" (1001mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Mount Vernon. January is the month with the most snowfall. Snow falls for 6.5 days and accumulates 1.85" (47mm) of snow.

Daylight

The average length of the day in January is 9h and 53min.
On the first day of January, sunrise is at 7:07 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 5:13 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 4.4h of sunshine.

UV index

The months with the lowest UV index in Mount Vernon are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 2 in January translates into these instructions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month in Mount Vernon?

In Mount Vernon, Indiana, the lowest temperatures are generally noted in January, averaging a high of 39.4°F (4.1°C) and a low of 26.4°F (-3.1°C).

Is January cold in Mount Vernon?

During January, Mount Vernon experiences an average high-temperature of 39.4°F (4.1°C) and a low-temperature of 26.4°F (-3.1°C).

What is the average humidity in January in Mount Vernon?

The average relative humidity in January in Mount Vernon is 77%.

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

In Mount Vernon, Indiana, during January, the rain falls for 10.3 days and regularly aggregates up to 2.76" (70mm) of precipitation.

What is the snowiest month in Mount Vernon?

The month with the most snowfall in Mount Vernon, Indiana, is January, when snow falls for 6.5 days and typically aggregates up to 1.85" (47mm) of snow.

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

In Mount Vernon, Indiana, during January, snow falls for 6.5 days and regularly aggregates up to 1.85" (47mm) of snow.

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

The average day length in January is 9h and 53min.

When is the sunrise / sunset in January in Mount Vernon?

On the first day of January in Mount Vernon, sunrise is at 7:07 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 5:13 pm CST.

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

January has the least sunshine of the year in Mount Vernon, Indiana, with an average of 4.4h of sunshine.

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

In January, the average sunshine duration in Mount Vernon, Indiana, is 4.4h.

When is the lowest UV index in Mount Vernon?

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

What is the UV index intensity in January in Mount Vernon?

In Mount Vernon, Indiana, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health threat from exposure to the Sun's 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
Mount Vernon, IN

Average temperature in January - Mount Vernon, IN
  • Average high temperature in January: 39.4°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (39.4°F).

  • Average low temperature in January: 26.4°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

Average pressure in January
Mount Vernon, IN

Average pressure in January - Mount Vernon, IN
  • 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 (29.95"Hg).

Average wind speed in January
Mount Vernon, IN

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

The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).

Average humidity in January
Mount Vernon, IN

Average humidity in January - Mount Vernon, IN
  • Average humidity in January: 77%

The months with the highest relative humidity are May and July (79%).
The month with the lowest relative humidity is October (69%).

Average rainfall in January
Mount Vernon, IN

Average rainfall in January - Mount Vernon, IN
  • Average rainfall in January: 2.76"

The wettest month (with the highest rainfall) is April (5.28").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in January
Mount Vernon, IN

Average rainfall days in January - Mount Vernon, IN
  • Average rainfall days in January: 10.3 days

The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is January (10.3 days).

Average snowfall in January
Mount Vernon, IN

Average snowfall in January - Mount Vernon, IN
  • Average snowfall in January: 1.85"

The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Mount Vernon, IN

Average snowfall days in January - Mount Vernon, IN
  • Average snowfall days in January: 6.5 days

The month with the highest number of snowfall days is January (6.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Mount Vernon, IN

Average daylight in January / Average sunshine in January - Mount Vernon, IN
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in January: 4h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in January
Mount Vernon, IN

Average sunshine days in January - Mount Vernon, IN
  • Average sunshine days in January: 14.7 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (9.3 days).

Average UV index in January
Mount Vernon, IN

Average UV index in January - Mount Vernon, IN
  • 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, February and December (UV index 2).

Average cloud cover in January
Mount Vernon, IN

Average cloud cover in January - Mount Vernon, IN
  • Average cloud cover in January: 53

The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 28).

Average visibility in January
Mount Vernon, IN

Average visibility in January - Mount Vernon, IN
  • 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).

Mount Vernon, Indiana, USA

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