Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
During August, Mount Vernon observes a subtle ascent to a still tropical 87.1°F (30.6°C) from July's 88.7°F (31.5°C) in the average high-temperature. During the month of August, the nighttime temperature in Mount Vernon falls to an average of 66.7°F (19.3°C).Heat index
In August, the heat index is estimated at a fiery hot 98.6°F (37°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.Heat index specifics point out values are for conditions of shade and a slight breeze. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
January, July, August and October, with an average relative humidity of 73%, are the least humid months.Rainfall
In Mount Vernon, during August, the rain falls for 16.3 days and regularly aggregates up to 3.58" (91mm) of precipitation. Throughout the year, in Mount Vernon, there are 155.3 rainfall days, and 35.59" (904mm) of precipitation is accumulated.Snowfall
June through October are months without snowfall.Daylight
In Mount Vernon, Missouri, the average length of the day in August is 13h and 32min.On the first day of the month, sunrise is at 6:20 am and sunset at 8:22 pm. On the last day of August, in Mount Vernon, sunrise is at 6:45 am and sunset at 7:44 pm CDT.
Sunshine
In August, the average sunshine in Mount Vernon 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 estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 6 during August translates into these guidelines:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Frequently asked questions
How hot is it in Mount Vernon in August?
What are the least humid months in Mount Vernon?
What is the average humidity in August in Mount Vernon?
How many days does it rain in August in Mount Vernon?
When it does not snow in Mount Vernon?
How many hours of daylight does Mount Vernon have in August?
When is the sunrise / sunset in August in Mount Vernon?
How long on average sun shines in August in Mount Vernon?
What is the month with the highest UV index in Mount Vernon?
How high is the UV index in August in Mount Vernon?
Average temperature in August
Mount Vernon, MO
- Average high temperature in August: 87.1°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 August: 66.7°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).
Average pressure in August
Mount Vernon, MO
- Average pressure in August: 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).
Average wind speed in August
Mount Vernon, MO
- Average wind speed in August: 6.8mph
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).
Average humidity in August
Mount Vernon, MO
- Average humidity in August: 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%).
Average rainfall in August
Mount Vernon, MO
- Average rainfall in August: 3.58"
The wettest month (with the highest rainfall) is May (5.31").
The driest month (with the least rainfall) is February (1.69").
Average rainfall days in August
Mount Vernon, MO
- Average rainfall days in August: 16.3 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).
Average snowfall in August
Mount Vernon, MO
- Average snowfall in August: 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").
Average snowfall days in August
Mount Vernon, MO
- Average snowfall days in August: 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).
Average daylight in August /
Average sunshine in August
Mount Vernon, MO
- Average daylight in August: 13h and 3min
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 August: 10h 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).
Average sunshine days in August
Mount Vernon, MO
- Average sunshine days in August: 13.3 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).
Average UV index in August
Mount Vernon, MO
- Average UV index in August: 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).
Average cloud cover in August
Mount Vernon, MO
- Average cloud cover in August: 26
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in August
Mount Vernon, MO
- Average visibility in August: 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, Missouri, USA
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