July weather forecast
Mount Vernon, IN

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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).

Temperature

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.

Heat index

The average heat index in July is evaluated at a very hot 98.6°F (37°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

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

Rainfall

In July, in Mount Vernon, Indiana, the rain falls for 18.5 days. Throughout July, 3.23" (82mm) of precipitation is accumulated. Throughout the year, in Mount Vernon, there are 169.9 rainfall days, and 39.41" (1001mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Mount Vernon, Indiana.

Daylight

In July, the average length of the day in Mount Vernon is 14h and 29min.
On the first day of July in Mount Vernon, sunrise is at 5:33 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 8:01 pm CDT.

Sunshine

In July, the average sunshine is 10.4h.

UV index

The months with the highest UV index in Mount Vernon are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 6 during July translates into the following guidance:
Deter overexposure. Protecting against the sun's effects is essential. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the hottest time of year in Mount Vernon?

July is the warmest month, 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).

How hot does it get in Mount Vernon in July?

The average high-temperature and low-temperature in Mount Vernon during July are 85.6°F (29.8°C) and 68.5°F (20.3°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in July is evaluated at 98.6°F (37°C).

What is the most humid month in Mount Vernon?

May and July, with an average relative humidity of 79%, are most humid months in Mount Vernon, Indiana.

What is the average humidity in July in Mount Vernon?

In July, the average relative humidity in Mount Vernon, Indiana, is 79%.

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

In Mount Vernon, Indiana, during July, the rain falls for 18.5 days and regularly aggregates up to 3.23" (82mm) of precipitation.

When it does not snow in Mount Vernon?

May through October are months without snowfall in Mount Vernon.

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

The average day length in July is 14h and 29min.

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

In July, on the first day of the month, sunrise is at 5:33 am and sunset at 8:17 pm. On the last day of the month, in Mount Vernon, sunrise is at 5:54 am and sunset at 8:01 pm CDT.

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

The average sunshine duration in July in Mount Vernon, Indiana, is 10.4h.

What are the months 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.

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

In Mount Vernon, the average daily maximum UV index in July is 6. A UV Index of 6 to 7 symbolizes a high health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Mount Vernon, IN

Average temperature in July - Mount Vernon, IN
  • Average high temperature in July: 85.6°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 July: 68.5°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 July
Mount Vernon, IN

Average pressure in July - Mount Vernon, IN
  • Average pressure in July: 29.98"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 July
Mount Vernon, IN

Average wind speed in July - Mount Vernon, IN
  • Average wind speed in July: 5.9mph

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 July
Mount Vernon, IN

Average humidity in July - Mount Vernon, IN
  • Average humidity in July: 79%

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 July
Mount Vernon, IN

Average rainfall in July - Mount Vernon, IN
  • Average rainfall in July: 3.23"

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 July
Mount Vernon, IN

Average rainfall days in July - Mount Vernon, IN
  • Average rainfall days in July: 18.5 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 July
Mount Vernon, IN

Average snowfall in July - Mount Vernon, IN
  • Average snowfall in July: 0"

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 July
Mount Vernon, IN

Average snowfall days in July - Mount Vernon, IN
  • Average snowfall days in July: 0 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 July /
Average sunshine in July
Mount Vernon, IN

Average daylight in July / Average sunshine in July - Mount Vernon, IN
  • Average daylight in July: 14h and 3min

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 July: 10h 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 July
Mount Vernon, IN

Average sunshine days in July - Mount Vernon, IN
  • Average sunshine days in July: 10.3 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 July
Mount Vernon, IN

Average UV index in July - Mount Vernon, IN
  • Average UV index in July: 6

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 July
Mount Vernon, IN

Average cloud cover in July - Mount Vernon, IN
  • Average cloud cover in July: 30

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 July
Mount Vernon, IN

Average visibility in July - Mount Vernon, IN
  • Average visibility in July: 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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