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
The shift into August finds Vienna at an average high-temperature of a still hot 87.3°F (30.7°C), closely comparable to July's conditions. Vienna anticipates an average minimum temperature of 65.8°F (18.8°C) in the month of August.Heat index
For most parts of August, the heat index is evaluated at a torrid 100.4°F (38°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to 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.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.
Humidity
In August, the average relative humidity is 74%.Rainfall
In Vienna, in August, during 15.2 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. In Vienna, during the entire year, the rain falls for 147.2 days and collects up to 31.02" (788mm) of precipitation.Snowfall
In Vienna, Missouri, snow does not fall in May through September.Daylight
In August, the average length of the day is 13h and 36min.On the first day of August, sunrise is at 6:11 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 7:38 pm CDT.
Sunshine
In Vienna, the average sunshine in August is 10.2h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In August, the average maximum UV index of 6 translates into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in August?
What is the average humidity in August?
How many days does it rain in August in Vienna?
When it does not snow?
What is the average length of the day in August?
What time are sunrise and sunset in August?
How long on average sun shines in August?
When is the highest UV index?
What is the UV index intensity in August?
Average temperature in August
Vienna, MO
- Average high temperature in August: 87.3°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (39.2°F).
- Average low temperature in August: 65.8°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in August
Vienna, MO
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Vienna, MO
- Average wind speed in August: 5.5mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in August
Vienna, MO
- Average humidity in August: 74%
The months with the highest relative humidity are March and May (77%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Vienna, MO
- Average rainfall in August: 2.68"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is November (1.65").
Average rainfall days in August
Vienna, MO
- Average rainfall days in August: 15.2 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is December (7 days).
Average snowfall in August
Vienna, MO
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Vienna, MO
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (7.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Vienna, 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 1min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in August
Vienna, MO
- Average sunshine days in August: 13.7 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in August
Vienna, 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).
Average cloud cover in August
Vienna, MO
- Average cloud cover in August: 30
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in August
Vienna, MO
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Vienna, Missouri, USA
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