August weather forecast
Hennessey, OK

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Weather in August

August, the last month of the summer in Hennessey, is another tropical month, with an average temperature ranging between max 93.9°F (34.4°C) and min 73°F (22.8°C).

Temperature

The arrival of August denotes a barely perceptible change in the average high-temperatures to a tropical 93.9°F (34.4°C) from July's 95.4°F (35.2°C). In August, Hennessey experiences an average nighttime temperature of 73°F (22.8°C).

Heat index

For August, the heat index is calculated to be a blisteringly hot 107.6°F (42°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', combines both the air temperature and the humidity level to give a perceived human temperature. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

The least humid month in Hennessey, Oklahoma, is August, with an average relative humidity of 56%.

Rainfall

In Hennessey, in August, during 10.5 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. Throughout the year, in Hennessey, there are 107 rainfall days, and 20.75" (527mm) of precipitation is accumulated.

Snowfall

In Hennessey, snow does not fall in April through September.

Daylight

In Hennessey, the average length of the day in August is 13h and 29min.
On the first day of August in Hennessey, sunrise is at 6:39 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 8:00 pm CDT.

Sunshine

The average sunshine in August in Hennessey is 11h.

UV index

June through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: In August, the maximum UV index of 7 transforms into these recommendations:
Deter overexposure. Protecting against the sun's effects is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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Frequently asked questions

How hot does it get in Hennessey in August?

Hennessey in August has an average high-temperature of 93.9°F (34.4°C) and an average low-temperature of 73°F (22.8°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is calculated to be 107.6°F (42°C).

What is the least humid month in Hennessey?

The least humid month in Hennessey, Oklahoma, is August, with an average relative humidity of 56%.

What is the average humidity in August in Hennessey?

In August, the average relative humidity is 56%.

How much does it rain in Hennessey in August?

In Hennessey, Oklahoma, in August, it is raining for 10.5 days, with typically 1.93" (49mm) of accumulated precipitation.

When it does not snow in Hennessey?

April through September are months without snowfall in Hennessey.

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

In August, the average day length in Hennessey, Oklahoma, is 13h and 29min.

When is the sunrise / sunset in August in Hennessey?

In August, on the first day of the month, sunrise is at 6:39 am and sunset at 8:36 pm. On the last day of the month, in Hennessey, Oklahoma, sunrise is at 7:03 am and sunset at 8:00 pm CDT.

How long on average sun shines in August in Hennessey?

The average sunshine duration in August is 11h.

When is the highest UV index in Hennessey?

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

What is the UV index reading in August in Hennessey?

The average daily maximum UV index in August in Hennessey is 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to 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
Hennessey, OK

Average temperature in August - Hennessey, OK
  • Average high temperature in August: 93.9°F

The warmest month (with the highest average high temperature) is July (95.4°F).
The month with the lowest average high temperature is January (48°F).

  • Average low temperature in August: 73°F

The month with the highest average low temperature is July (74.8°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

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Average pressure in August
Hennessey, OK

Average pressure in August - Hennessey, OK
  • Average pressure in August: 29.92"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in August
Hennessey, OK

Average wind speed in August - Hennessey, OK
  • Average wind speed in August: 8.6mph

The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is August (8.6mph).

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Average humidity in August
Hennessey, OK

Average humidity in August - Hennessey, OK
  • Average humidity in August: 56%

The month with the highest relative humidity is May (69%).
The month with the lowest relative humidity is August (56%).

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Average rainfall in August
Hennessey, OK

Average rainfall in August - Hennessey, OK
  • Average rainfall in August: 1.93"

The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is December (0.71").

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Average rainfall days in August
Hennessey, OK

Average rainfall days in August - Hennessey, OK
  • Average rainfall days in August: 10.5 days

The month with the highest number of rainy days is May (13 days).
The month with the least rainy days is January (3.8 days).

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Average snowfall in August
Hennessey, OK

Average snowfall in August - Hennessey, OK
  • 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").

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Average snowfall days in August
Hennessey, OK

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

The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in August: 11h and 0min

The months with the most sunshine are June and July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).

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Average sunshine days in August
Hennessey, OK

Average sunshine days in August - Hennessey, OK
  • Average sunshine days in August: 16.6 days

The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is April (15.8 days).

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Average UV index in August
Hennessey, OK

Average UV index in August - Hennessey, 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
Hennessey, OK

Average cloud cover in August - Hennessey, OK
  • Average cloud cover in August: 19

The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is June (Cloud cover 18).

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Average visibility in August
Hennessey, OK

Average visibility in August - Hennessey, 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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Hennessey, Oklahoma, USA

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