July weather forecast
Mount Vernon, MO

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Weather in July

July in Mount Vernon, Missouri, is a hot summer month, with an average temperature varying between 88.7°F (31.5°C) and 68.9°F (20.5°C).

Temperature

July, marked by an average high-temperature of 88.7°F (31.5°C) and a low-temperature of 68.9°F (20.5°C), is the warmest month.

Heat index

July's average heat index is estimated at a blisteringly hot 104°F (40°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

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

Rainfall

In Mount Vernon, during July, the rain falls for 17 days and regularly aggregates up to 4.09" (104mm) of 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

June through October are months without snowfall.

Daylight

In Mount Vernon, Missouri, the average length of the day in July is 14h and 25min.
On the first day of the month, sunrise is at 5:59 am and sunset at 8:39 pm. On the last day of July, in Mount Vernon, sunrise is at 6:20 am and sunset at 8:23 pm CDT.

Sunshine

In Mount Vernon, the average sunshine in July is 10.6h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Mount Vernon. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 6 in July converts into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
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Frequently asked questions

What is the hottest time of year in Mount Vernon?

July, marked by an average high-temperature of 88.7°F (31.5°C) and a low-temperature of 68.9°F (20.5°C), is the warmest month.

Is it hot in Mount Vernon during July?

July temperatures in Mount Vernon, Missouri, vary between a high-temperature of 88.7°F (31.5°C) and a low-temperature of 68.9°F (20.5°C). In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is estimated at 104°F (40°C).

What are the least humid months 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 July in Mount Vernon?

In Mount Vernon, the average relative humidity in July is 73%.

How much does it rain in Mount Vernon in July?

In Mount Vernon, in July, during 17 rainfall days, 4.09" (104mm) of precipitation is typically accumulated.

When it does not snow in Mount Vernon?

June through October are months without snowfall in Mount Vernon, Missouri.

What is the average length of the day in July in Mount Vernon?

In Mount Vernon, the average day length in July is 14h and 25min.

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

On the first day of July in Mount Vernon, Missouri, sunrise is at 5:59 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 8:23 pm CDT.

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

The average sunshine duration in July is 10.6h.

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.

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 estimate of 6 to 7 represents a high health risk from exposure to Sun's UV rays.
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, MO

Average temperature in July - Mount Vernon, MO
  • Average high temperature in July: 88.7°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 July: 68.9°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 July
Mount Vernon, MO

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

Average wind speed in July - Mount Vernon, MO
  • Average wind speed in July: 6.6mph

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 July
Mount Vernon, MO

Average humidity in July - Mount Vernon, MO
  • Average humidity in July: 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 July
Mount Vernon, MO

Average rainfall in July - Mount Vernon, MO
  • Average rainfall in July: 4.09"

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 July
Mount Vernon, MO

Average rainfall days in July - Mount Vernon, MO
  • Average rainfall days in July: 17 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 July
Mount Vernon, MO

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

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 July
Mount Vernon, MO

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

Average daylight in July / Average sunshine in July - Mount Vernon, MO
  • Average daylight in July: 14h and 2min

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 July: 10h and 4min

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 July
Mount Vernon, MO

Average sunshine days in July - Mount Vernon, MO
  • Average sunshine days in July: 10.6 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 July
Mount Vernon, MO

Average UV index in July - Mount Vernon, MO
  • 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 and December (UV index 2).

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Average cloud cover in July
Mount Vernon, MO

Average cloud cover in July - Mount Vernon, MO
  • Average cloud cover in July: 27

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 July
Mount Vernon, MO

Average visibility in July - Mount Vernon, MO
  • 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).

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Mount Vernon, Missouri, USA

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