August weather forecast
Armstrong, MO

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Weather in August

August, the last month of the summer in Armstrong, is also a moderately hot month, with an average temperature ranging between min 65.8°F (18.8°C) and max 85.5°F (29.7°C).

Temperature

The arrival of August marks a slight shift to an average high-temperature of a warm 85.5°F (29.7°C) from July's 86.2°F (30.1°C). An average low-temperature of 65.8°F (18.8°C) is common during the nights of August.

Heat index

August's heat index is evaluated at a very hot 96.8°F (36°C). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Heat index determinations are made taking into account the shade and light air movements. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'real feel', gives an indication of how one might feel in terms of heat after considering humidity. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. 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.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In August, the average relative humidity is 76%.

Rainfall

In Armstrong, in August, during 10 rainfall days, 0.91" (23mm) of precipitation is typically accumulated. Throughout the year, there are 102.5 rainfall days, and 10.91" (277mm) of precipitation is accumulated.

Snowfall

April through September are months without snowfall.

Daylight

In Armstrong, the average length of the day in August is 13h and 40min.
On the first day of August, sunrise is at 6:11 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 7:42 pm CDT.

Sunshine

The average sunshine in August is 10.3h.

UV index

June 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 unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high daily UV index of 6 during August translates into the following directions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Updated: Jun 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

In Armstrong, 85.5°F (29.7°C) is the average high-temperature and 65.8°F (18.8°C) is the average low-temperature during August. In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is evaluated at 96.8°F (36°C).

What is the average humidity in August?

In August, the average relative humidity is 76%.

How many days does it rain in August in Armstrong?

In Armstrong, during August, the rain falls for 10 days and regularly aggregates up to 0.91" (23mm) of precipitation.

When it does not snow?

April through September are months without snowfall.

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

In Armstrong, the average day length in August is 13h and 40min.

When is the sunrise / sunset in August in Armstrong?

In August, on the first day of the month, sunrise is at 6:11 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 7:42 pm CDT.

How long on average sun shines in August?

In Armstrong, Missouri, the average sunshine duration in August is 10.3h.

What are the months with the highest UV index?

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

What is the UV index intensity in August?

In August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health threat from unsafe 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
Armstrong, MO

Average temperature in August - Armstrong, MO
  • Average high temperature in August: 85.5°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (36.1°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 (22.6°F).

Average pressure in August
Armstrong, MO

Average pressure in August - Armstrong, MO
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in August
Armstrong, MO

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

The windiest months (with the highest average wind speed) are January and March (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in August
Armstrong, MO

Average humidity in August - Armstrong, MO
  • Average humidity in August: 76%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in August
Armstrong, MO

Average rainfall in August - Armstrong, MO
  • Average rainfall in August: 0.91"

The wettest month (with the highest rainfall) is May (1.73").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in August
Armstrong, MO

Average rainfall days in August - Armstrong, MO
  • Average rainfall days in August: 10 days

The month with the highest number of rainy days is May (13.2 days).
The months with the least rainy days are February and December (4.3 days).

Average snowfall in August
Armstrong, MO

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

The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in August
Armstrong, MO

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

The month with the highest number of snowfall days is January (5.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

Average sunshine days in August
Armstrong, MO

Average sunshine days in August - Armstrong, MO
  • Average sunshine days in August: 18.8 days

The month with the most sunshine days is December (23.6 days).
The month with the least sunshine days is May (15.2 days).

Average UV index in August
Armstrong, MO

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

The months with the highest UV index are 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
Armstrong, MO

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

The months with the most cloud cover are January and February (Cloud cover 48).
The months with the least cloud cover are June, July and August (Cloud cover 27).

Average visibility in August
Armstrong, MO

Average visibility in August - Armstrong, 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).

Armstrong, Missouri, USA

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