August weather forecast
Altona, MO

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Weather in August

The last month of the summer, August, is another warm month in Altona, Missouri, with temperature in the range of an average low of 65.8°F (18.8°C) and an average high of 84.9°F (29.4°C).

Temperature

August notes an average high-temperature of a warm 84.9°F (29.4°C), subtly differing from July's 86.5°F (30.3°C). The mean low-temperature during August nights in Altona is a comfortable 65.8°F (18.8°C).

Heat index

The average heat index in August is estimated at a torrid 95°F (35°C). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

The average relative humidity in August in Altona, Missouri, is 77%.

Rainfall

In Altona, in August, during 12 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. In Altona, during the entire year, the rain falls for 114.1 days and collects up to 13.9" (353mm) of precipitation.

Snowfall

In Altona, snow does not fall in April, June through September.

Daylight

The average length of the day in August is 13h and 37min.
On the first day of the month, sunrise is at 6:19 am and sunset at 8:26 pm. On the last day of August, sunrise is at 6:46 am and sunset at 7:47 pm CDT.

Sunshine

The average sunshine in August in Altona is 10.2h.

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 exposure to the Sun's UV rays for average individuals.
Note: The UV index of 6 during August leads to these advisories:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
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Frequently asked questions

Is it hot in Altona during August?

During August, Altona experiences an average high-temperature of 84.9°F (29.4°C) and a low-temperature of 65.8°F (18.8°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 95°F (35°C).

What is the average humidity in August in Altona?

In Altona, the average relative humidity in August is 77%.

How many days does it rain in August in Altona?

In Altona, in August, during 12 rainfall days, 1.5" (38mm) of precipitation is typically accumulated.

When it does not snow in Altona?

April, June through September are months without snowfall in Altona.

How many hours of daylight does Altona have in August?

In Altona, Missouri, the average day length in August is 13h and 37min.

What time are sunrise and sunset in August in Altona?

On the first day of August in Altona, Missouri, sunrise is at 6:19 am and sunset at 8:26 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 7:47 pm CDT.

How many hours of sunshine does Altona have in August?

In Altona, Missouri, the average sunshine duration in August is 10.2h.

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

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

What is the UV index intensity in August in Altona?

In Altona, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
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
Altona, MO

Average temperature in August - Altona, MO
  • Average high temperature in August: 84.9°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in August: 65.8°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 (24.3°F).

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Average pressure in August
Altona, MO

Average pressure in August - Altona, MO
  • Average pressure in August: 29.96"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in August
Altona, MO

Average wind speed in August - Altona, MO
  • Average wind speed in August: 6.6mph

The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

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Average humidity in August
Altona, MO

Average humidity in August - Altona, MO
  • Average humidity in August: 77%

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in August
Altona, MO

Average rainfall in August - Altona, MO
  • Average rainfall in August: 1.5"

The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is January (0.35").

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Average rainfall days in August
Altona, MO

Average rainfall days in August - Altona, MO
  • Average rainfall days in August: 12 days

The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (3.5 days).

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Average snowfall in August
Altona, MO

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

The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, June, July, August and September (0").

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Average snowfall days in August
Altona, MO

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

The month with the highest number of snowfall days is February (3.8 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
Altona, MO

Average daylight in August / Average sunshine in August - Altona, 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 30min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).

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Average sunshine days in August
Altona, MO

Average sunshine days in August - Altona, MO
  • Average sunshine days in August: 16.6 days

The month with the most sunshine days is January (25.2 days).
The month with the least sunshine days is May (12.8 days).

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Average UV index in August
Altona, MO

Average UV index in August - Altona, 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
Altona, MO

Average cloud cover in August - Altona, MO
  • Average cloud cover in August: 26

The month with the most cloud cover is March (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 26).

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Average visibility in August
Altona, MO

Average visibility in August - Altona, 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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Altona, Missouri, USA

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