August weather forecast
Vista, MO

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Weather in August

August, the last month of the summer in Vista, is also a hot month, with temperature in the range of an average high of 86.7°F (30.4°C) and an average low of 66.4°F (19.1°C).

Temperature

August's presence records an average high-temperature of a still hot 86.7°F (30.4°C), closely mirroring July's climate. During August, the temperature in Vista tends to dip to an average of 66.4°F (19.1°C) at night.

Heat index

The average heat index in August is appraised at a very hot 98.6°F (37°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In Vista, the average relative humidity in August is 73%.

Rainfall

In Vista, in August, during 13.8 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. In Vista, Missouri, during the entire year, the rain falls for 141.9 days and collects up to 27.52" (699mm) of precipitation.

Snowfall

In Vista, snow does not fall in May through October.

Daylight

The average length of the day in August is 13h and 35min.
On the first day of August in Vista, sunrise is at 6:18 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 7:45 pm CDT.

Sunshine

In Vista, the average sunshine in August is 10.3h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 6 during August leads to these instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
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Frequently asked questions

How hot does it get in Vista in August?

In August, the average high-temperature and low-temperature in Vista, Missouri, are 86.7°F (30.4°C) and 66.4°F (19.1°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, is appraised at 98.6°F (37°C).

What is the average humidity in August in Vista?

The average relative humidity in August in Vista is 73%.

How many days does it rain in August in Vista?

In Vista, in August, it is raining for 13.8 days, with typically 2.83" (72mm) of accumulated precipitation.

When it does not snow in Vista?

In Vista, Missouri, snow does not fall in May through October.

What is the average length of the day in August in Vista?

The average day length in August in Vista, Missouri, is 13h and 35min.

When is the sunrise / sunset in August in Vista?

On the first day of August in Vista, Missouri, sunrise is at 6:18 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 7:45 pm CDT.

How long on average sun shines in August in Vista?

In August, the average sunshine duration is 10.3h.

What are the months with the highest UV index in Vista?

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

What is the UV index intensity in August in Vista?

In August, the average daily maximum UV index in Vista, Missouri, is 6. A UV Index value of 6 to 7 symbolizes a high health threat 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 August
Vista, MO

Average temperature in August - Vista, MO
  • Average high temperature in August: 86.7°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (40.5°F).

  • Average low temperature in August: 66.4°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).

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Average pressure in August
Vista, MO

Average pressure in August - Vista, MO
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in August
Vista, MO

Average wind speed in August - Vista, MO
  • Average wind speed in August: 6.2mph

The windiest month (with the highest average wind speed) is March (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).

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Average humidity in August
Vista, MO

Average humidity in August - Vista, MO
  • Average humidity in August: 73%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in August
Vista, MO

Average rainfall in August - Vista, MO
  • Average rainfall in August: 2.83"

The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is January (1.18").

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Average rainfall days in August
Vista, MO

Average rainfall days in August - Vista, MO
  • Average rainfall days in August: 13.8 days

The months with the highest number of rainy days are May and July (16.7 days).
The month with the least rainy days is December (6 days).

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Average snowfall in August
Vista, MO

Average snowfall in August - Vista, MO
  • Average snowfall in August: 0"

The month with the highest snowfall is February (2.28").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Vista, MO

Average snowfall days in August - Vista, MO
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Vista, MO

Average daylight in August / Average sunshine in August - Vista, MO
  • Average daylight in August: 13h and 4min

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 August: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

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Average sunshine days in August
Vista, MO

Average sunshine days in August - Vista, MO
  • Average sunshine days in August: 14.3 days

The month with the most sunshine days is December (20.7 days).
The month with the least sunshine days is July (11.7 days).

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Average UV index in August
Vista, MO

Average UV index in August - Vista, 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, February, November and December (UV index 2).

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Average cloud cover in August
Vista, MO

Average cloud cover in August - Vista, MO
  • Average cloud cover in August: 27

The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are June and August (Cloud cover 27).

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Average visibility in August
Vista, MO

Average visibility in August - Vista, 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).

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Vista, Missouri, USA

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