August weather forecast
Grayson, OK

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Weather in August

The last month of the summer, August, is another hot month in Grayson, Oklahoma, with temperature in the range of an average high of 91.6°F (33.1°C) and an average low of 71.1°F (21.7°C).

Temperature

Grayson's temperatures peak on average in August, reaching 91.6°F (33.1°C) at their highest and 71.1°F (21.7°C) at their lowest.

Heat index

During August, the heat index is computed to be a blisteringly hot 107.6°F (42°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Remember that heat index calculations are made for conditions in the shade with light wind. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

With an average relative humidity of 66%, August is the least humid month.

Rainfall

In Grayson, Oklahoma, in August, during 12.6 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. In Grayson, during the entire year, the rain falls for 136.7 days and collects up to 30.67" (779mm) of precipitation.

Snowfall

In Grayson, snow does not fall in May through October.

Daylight

In Grayson, the average length of the day in August is 13h and 28min.
On the first day of August, sunrise is at 6:32 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 7:51 pm CDT.

Sunshine

With an average of 11h of sunshine, August has the most sunshine of the year in Grayson.

UV index

June through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 7 in August transforms into the following instructions:
Prevent overexposure. Protection from the sun's harmful effects is needed. 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. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
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Frequently asked questions

What is the hottest time of year in Grayson?

The average temperatures in Grayson reach their apex in August, averaging 91.6°F (33.1°C) at the high end and 71.1°F (21.7°C) at the low end.

How hot is it in Grayson in August?

The high-temperature, in August, in Grayson, is 91.6°F (33.1°C), while the low-temperature averages to 71.1°F (21.7°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is computed to be 107.6°F (42°C).

What is the least humid month in Grayson?

The least humid month in Grayson, Oklahoma, is August, with an average relative humidity of 66%.

What is the average humidity in August in Grayson?

In Grayson, the average relative humidity in August is 66%.

How much does it rain in Grayson in August?

In August, in Grayson, the rain falls for 12.6 days. Throughout August, 2.83" (72mm) of precipitation is accumulated.

When it does not snow in Grayson?

May through October are months without snowfall in Grayson, Oklahoma.

How many hours of daylight does Grayson have in August?

In August, the average day length in Grayson, Oklahoma, is 13h and 28min.

What time are sunrise and sunset in August in Grayson?

On the first day of August in Grayson, sunrise is at 6:32 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 7:51 pm CDT.

What month has the most sunshine in Grayson?

August has the most sunshine of the year in Grayson, Oklahoma, with an average of 11h of sunshine.

How long on average sun shines in August in Grayson?

The average sunshine duration in August in Grayson, Oklahoma, is 11h.

What is the month with the highest UV index in Grayson?

June through August, with an average maximum UV index of 7, are months with the highest UV index in Grayson.

What is the UV index reading in August in Grayson?

In August, the average daily maximum UV index in Grayson is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Grayson, OK

Average temperature in August - Grayson, OK
  • Average high temperature in August: 91.6°F

The warmest month (with the highest average high temperature) is August (91.6°F).
The month with the lowest average high temperature is January (47.7°F).

  • Average low temperature in August: 71.1°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).

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Average pressure in August
Grayson, OK

Average pressure in August - Grayson, OK
  • Average pressure in August: 29.94"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in August
Grayson, OK

Average wind speed in August - Grayson, OK
  • Average wind speed in August: 7mph

The windiest month (with the highest average wind speed) is March (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in August
Grayson, OK

Average humidity in August - Grayson, OK
  • Average humidity in August: 66%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is August (66%).

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Average rainfall in August
Grayson, OK

Average rainfall in August - Grayson, OK
  • Average rainfall in August: 2.83"

The wettest month (with the highest rainfall) is May (5").
The driest month (with the least rainfall) is February (1.46").

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Average rainfall days in August
Grayson, OK

Average rainfall days in August - Grayson, OK
  • Average rainfall days in August: 12.6 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (6.4 days).

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Average snowfall in August
Grayson, OK

Average snowfall in August - Grayson, OK
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.73").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Grayson, OK

Average snowfall days in August - Grayson, OK
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
Grayson, OK

Average daylight in August / Average sunshine in August - Grayson, OK
  • Average daylight in August: 13h and 3min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in August: 11h and 0min

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

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Average sunshine days in August
Grayson, OK

Average sunshine days in August - Grayson, OK
  • Average sunshine days in August: 16.7 days

The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is May (13.1 days).

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Average UV index in August
Grayson, OK

Average UV index in August - Grayson, OK
  • Average UV index in August: 7

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

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Average cloud cover in August
Grayson, OK

Average cloud cover in August - Grayson, OK
  • Average cloud cover in August: 20

The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 20).

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Average visibility in August
Grayson, OK

Average visibility in August - Grayson, OK
  • 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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Grayson, Oklahoma, USA

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