August weather forecast
Grays Valley, MO

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Weather in August

The last month of the summer, August, is another hot month in Grays Valley, Missouri, with an average temperature varying between 66.7°F (19.3°C) and 87.1°F (30.6°C).

Temperature

As Grays Valley transitions into August, the average high-temperature stands at a still tropical 87.1°F (30.6°C), offering little variation from the preceding month. An average nighttime temperature of 66.7°F (19.3°C) is recorded in Grays Valley during August.

Heat index

The average heat index in August is computed to be a very hot 98.6°F (37°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. 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 'felt air temperature' or 'real feel', comes about by integrating the temperature readings with the humidity levels. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

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

Rainfall

In Grays Valley, in August, during 14.9 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. In Grays Valley, during the entire year, the rain falls for 151.3 days and collects up to 33.39" (848mm) of precipitation.

Snowfall

In Grays Valley, snow does not fall in June through October.

Daylight

The average length of the day in August is 13h and 34min.
On the first day of the month, sunrise is at 6:20 am and sunset at 8:23 pm. On the last day of August, in Grays Valley, sunrise is at 6:46 am and sunset at 7:45 pm CDT.

Sunshine

The average sunshine in August in Grays Valley is 10.4h.

UV index

In August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum UV index of 6 in August translates into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August in Grays Valley?

Grays Valley in August has an average high-temperature of 87.1°F (30.6°C) and an average low-temperature of 66.7°F (19.3°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, in August is computed to be 98.6°F (37°C).

What is the average humidity in August in Grays Valley?

The average relative humidity in August in Grays Valley is 73%.

How many days does it rain in August in Grays Valley?

In August, the rain falls for 14.9 days. Throughout August, 3.15" (80mm) of precipitation is accumulated.

When it does not snow in Grays Valley?

In Grays Valley, Missouri, snow does not fall in June through October.

What is the average length of the day in August in Grays Valley?

In Grays Valley, the average day length in August is 13h and 34min.

What time are sunrise and sunset in August in Grays Valley?

In August, on the first day of the month, sunrise is at 6:20 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 7:45 pm CDT.

How many hours of sunshine does Grays Valley have in August?

In August, the average sunshine duration in Grays Valley is 10.4h.

What is the UV index reading in August in Grays Valley?

In Grays Valley, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes 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
Grays Valley, MO

Average temperature in August - Grays Valley, MO
  • Average high temperature in August: 87.1°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in August: 66.7°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

Average pressure in August
Grays Valley, MO

Average pressure in August - Grays Valley, 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).

Average wind speed in August
Grays Valley, MO

Average wind speed in August - Grays Valley, MO
  • Average wind speed in August: 6.8mph

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

Average humidity in August
Grays Valley, MO

Average humidity in August - Grays Valley, 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%).

Average rainfall in August
Grays Valley, MO

Average rainfall in August - Grays Valley, MO
  • Average rainfall in August: 3.15"

The wettest month (with the highest rainfall) is May (5.51").
The driest month (with the least rainfall) is December (1.54").

Average rainfall days in August
Grays Valley, MO

Average rainfall days in August - Grays Valley, MO
  • Average rainfall days in August: 14.9 days

The month with the highest number of rainy days is May (17.5 days).
The months with the least rainy days are January and December (6.8 days).

Average snowfall in August
Grays Valley, MO

Average snowfall in August - Grays Valley, MO
  • Average snowfall in August: 0"

The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in August
Grays Valley, MO

Average snowfall days in August - Grays Valley, MO
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (5.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Grays Valley, MO

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

The month with the longest days is June (Average daylight: 14h and 42min).
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 42min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).

Average sunshine days in August
Grays Valley, MO

Average sunshine days in August - Grays Valley, MO
  • Average sunshine days in August: 13.3 days

The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is July (11 days).

Average UV index in August
Grays Valley, MO

Average UV index in August - Grays Valley, MO
  • Average UV index in August: 6

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in August
Grays Valley, MO

Average cloud cover in August - Grays Valley, MO
  • Average cloud cover in August: 26

The months with the most cloud cover are February and March (Cloud cover 46).
The months with the least cloud cover are June and August (Cloud cover 26).

Average visibility in August
Grays Valley, MO

Average visibility in August - Grays Valley, 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).

Grays Valley, Missouri, USA

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