Climate and monthly 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). 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). Weather in January »

Weather in February

February, the last month of the winter in Mount Vernon, is a frosty month, with temperature in the range of an average high of 44.1°F (6.7°C) and an average low of 30.4°F (-0.9°C). The arrival of February records an average high-temperature of a chilly 44.1°F (6.7°C), closely related to the 39.4°F (4.1°C) observed in January. Weather in February »

Weather in March

March, the first month of the spring in Mount Vernon, is a fresh month, with temperature in the range of an average high of 55°F (12.8°C) and an average low of 39.2°F (4°C). As March sets, the average high-temperature shows an increase, moving up from a frosty 44.1°F (6.7°C) in February to a cool 55°F (12.8°C). Weather in March »

Weather in April

April is a comfortable spring month in Mount Vernon, Indiana, with temperature in the range of an average high of 65.8°F (18.8°C) and an average low of 49.1°F (9.5°C). As Mount Vernon, Indiana, transitions into April, the average high-temperature shows a change, moving from a cool 55°F (12.8°C) in March to a refreshing 65.8°F (18.8°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderately hot month in Mount Vernon, Indiana, with an average temperature varying between 75.2°F (24°C) and 58.5°F (14.7°C). May shows a rise in the average high-temperature, moving from April's enjoyable 65.8°F (18.8°C) to a warm 75.2°F (24°C). Weather in May »

Weather in June

The first month of the summer, June, is still a warm month in Mount Vernon, Indiana, with an average temperature fluctuating between 83.7°F (28.7°C) and 66.6°F (19.2°C). June's arrival signals a subtle increase in average high-temperatures, moving from May's 75.2°F (24°C) to a still moderately hot 83.7°F (28.7°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Mount Vernon, Indiana, with an average temperature varying between 85.6°F (29.8°C) and 68.5°F (20.3°C). The month of July, characterized by an average high of 85.6°F (29.8°C) and a low of 68.5°F (20.3°C), is recognized as the warmest. The average heat index in July is evaluated at a very hot 98.6°F (37°C). Weather in July »

Weather in August

August, the last month of the summer in Mount Vernon, is also a moderately hot month, with an average temperature fluctuating between 66°F (18.9°C) and 84.6°F (29.2°C). The transition from July to August sees average high-temperatures adjusting to a still moderately hot 84.6°F (29.2°C), from a not significantly different 85.6°F (29.8°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Mount Vernon, Indiana, with an average temperature varying between 61.2°F (16.2°C) and 79.7°F (26.5°C). As August transitions into September, Mount Vernon records an average high-temperature of a still moderately hot 79.7°F (26.5°C), showing a gentle shift from the preceding month. Weather in September »

Weather in October

October, like September, in Mount Vernon, Indiana, is another comfortable autumn month, with an average temperature ranging between min 50.2°F (10.1°C) and max 67.5°F (19.7°C). The arrival of October indicates a decrease in the average high-temperature, moving from a moderately hot 79.7°F (26.5°C) in September to an enjoyable 67.5°F (19.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Mount Vernon, Indiana, with an average temperature fluctuating between 53.6°F (12°C) and 39.2°F (4°C). As October shifts into November, a slight alteration in temperatures is observed, with average highs reducing from a refreshing 67.5°F (19.7°C) to a fresh 53.6°F (12°C). Weather in November »

Weather in December

December, the first month of the winter in Mount Vernon, is still a chilly month, with an average temperature varying between 32.9°F (0.5°C) and 44.1°F (6.7°C). The arrival of December corresponds with a temperature reduction, down from November's cool 53.6°F (12°C) to a chilly 44.1°F (6.7°C). Weather in December »
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).

How much does it rain in Mount Vernon?

In Mount Vernon, Indiana, during the entire year, the rain falls for 169.9 days and collects up to 39.41" (1001mm) of precipitation.

When does it snow in Mount Vernon?

January through April, November and December are months with snowfall in Mount Vernon, Indiana.

What is the snowiest month in Mount Vernon?

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

How much does it snow in Mount Vernon?

Throughout the year, in Mount Vernon, Indiana, there are 20.3 snowfall days, and 6.22" (158mm) of snow is accumulated.

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

January has the least sunshine of the year, with an average of 4.4h of sunshine.

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.

When is Daylight Saving Time (DST) in Mount Vernon?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

What is the rainiest month in Mount Vernon?

The month with the most rainfall in Mount Vernon is April, when the rain falls for 16.8 days and typically aggregates up to 5.28" (134mm) of precipitation.

What is the most humid month in Mount Vernon?

The months with the highest humidity are May and July, with an average relative humidity of 79%.

When it does not snow in Mount Vernon?

May through October are months without snowfall.

What is the month with the highest UV index in Mount Vernon?

May through August, with an average maximum UV index of 6, are months with the highest UV index in Mount Vernon.

When are the longest days in Mount Vernon?

June has the longest days of the year, with an average of 14h and 48min of daylight.

What month has the most sunshine in Mount Vernon?

June has the most sunshine of the year in Mount Vernon, with an average of 10.5h of sunshine.

What is the hottest time of year in Mount Vernon?

July is the warmest month in Mount Vernon, Indiana, with the temperature often reaching an average high of 85.6°F (29.8°C) and an average low of 68.5°F (20.3°C).

What is the driest month in Mount Vernon?

The month with the least rainfall in Mount Vernon, Indiana, is September, when the rain falls for 12.5 days and typically collects 1.85" (47mm) of precipitation.

What is the least humid month in Mount Vernon?

October is the least humid month, with an average relative humidity of 69%.

What is the month with the shortest days in Mount Vernon?

With an average of 9h and 36min of daylight, December has the shortest days of the year in Mount Vernon, Indiana.

Average temperature
Mount Vernon, IN

Average temperature - Mount Vernon, IN

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).

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
Mount Vernon, IN

Average pressure - Mount Vernon, IN

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
Mount Vernon, IN

Average wind speed - Mount Vernon, IN

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
Mount Vernon, IN

Average humidity - Mount Vernon, IN

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

Average rainfall
Mount Vernon, IN

Average rainfall - Mount Vernon, IN

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
Mount Vernon, IN

Average rainfall days - Mount Vernon, IN

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
Mount Vernon, IN

Average snowfall - Mount Vernon, IN

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
Mount Vernon, IN

Average snowfall days - Mount Vernon, IN

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 / Average sunshine
Mount Vernon, IN

Average daylight / Average sunshine - Mount Vernon, IN

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).

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
Mount Vernon, IN

Average sunshine days - Mount Vernon, IN

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
Mount Vernon, IN

Average UV index - Mount Vernon, IN

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 visibility
Mount Vernon, IN

Average visibility - Mount Vernon, IN

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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