August weather forecast and climate
Potosi, MO

Weather in August

August, the last month of the summer, in Potosi, is another tropical month, with average temperature ranging between max 86.7°F (30.4°C) and min 65.5°F (18.6°C).

Temperature

In August, the average high-temperature is practically the same as in July - a still hot 86.7°F (30.4°C). In August, the average low-temperature is 65.5°F (18.6°C).

Heat index

The average heat index in August is calculated to be a very hot 99.3°F (37.4°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'feels like', or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like wind, metabolic differences, pregnancy, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In August, the average relative humidity is 75%.

Rainfall

In August, in Potosi, the rain falls for 15.2 days. Throughout August, 2.91" (74mm) of precipitation is accumulated. Throughout the year, in Potosi, there are 142.5 rainfall days, and 28.58" (726mm) of precipitation is accumulated.

Snowfall

In Potosi, Missouri, snow does not fall in April through October.

Daylight

In Potosi, Missouri, the average length of the day is 13.6h.

Sunshine

The average sunshine in August is 10h.

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 health vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in August in Potosi?

In August, in Potosi, Missouri, the average high-temperature is 86.7°F (30.4°C), and the average low-temperature is 65.5°F (18.6°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 99.3°F (37.4°C).

What is the average humidity in August in Potosi?

In Potosi, Missouri, the average relative humidity in August is 75%.

How many days does it rain in August in Potosi?

In Potosi, in August, during 15.2 rainfall days, 2.91" (74mm) of precipitation is typically accumulated.

When it does not snow in Potosi?

In Potosi snow does not fall in April through October.

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

In Potosi, the average length of the day in August is 13.6h.

How long on average sun shines in August in Potosi?

The average sunshine in August is 10h.

When is the highest UV index in Potosi?

Months with the highest UV index in Potosi are May through August, with an average maximum UV index of 6.

How high is the UV index in August in Potosi?

In August, the average daily maximum UV index in Potosi, Missouri, is 6. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to the Sun's UV rays.

Average temperature in August
Potosi, MO

Average temperature in August - Potosi, 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 (39.6°F).

  • Average low temperature in August: 65.5°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

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Average pressure in August
Potosi, MO

Average pressure in August - Potosi, MO
  • Average pressure in August: 29.98"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.92").

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Average wind speed in August
Potosi, MO

Average wind speed in August - Potosi, MO
  • Average wind speed in August: 5.2mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in August
Potosi, MO

Average humidity in August - Potosi, MO
  • Average humidity in August: 75%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in August
Potosi, MO

Average rainfall in August - Potosi, MO
  • Average rainfall in August: 2.91"

The wettest month (with the highest rainfall) is May (3.03").
The driest months (with the least rainfall) are February, September and November (1.73").

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Average rainfall days in August
Potosi, MO

Average rainfall days in August - Potosi, MO
  • Average rainfall days in August: 15.2 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (7.2 days).

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Average snowfall in August
Potosi, MO

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

The month with the highest snowfall is February (2.8").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in August
Potosi, MO

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

The month with the highest number of snowfall days is January (5.3 days).
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
Potosi, MO

Average daylight in August / Average sunshine in August - Potosi, MO
  • Average daylight in August: 13.6h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in August: 10h

The month with the most sunshine is June (Average sunshine: 10.4h).
The month with the least sunshine is January (Average sunshine: 4.7h).

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Average sunshine days in August
Potosi, MO

Average sunshine days in August - Potosi, MO
  • Average sunshine days in August: 13.8 days

The month with the most sunshine days is October (21 days).
The month with the least sunshine days is July (12.3 days).

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Average UV index in August
Potosi, MO

Average UV index in August - Potosi, MO
  • Average UV index in August: 6

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in August
Potosi, MO

Average cloud cover in August - Potosi, MO
  • Average cloud cover in August: 31

Months with the most cloud cover are January, February and March (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in August
Potosi, MO

Average visibility in August - Potosi, MO
  • Average visibility in August: 5mi

Months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
Months with the lowest visibility are May, July, August and September (5mi).

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