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 temperature in the range of an average high of 93.9°F (34.4°C) and an average low of 73°F (22.8°C).

Temperature

The introduction of August notes a subtle temperature variation to a hot 93.9°F (34.4°C) from July's 95.4°F (35.2°C). Throughout August, Hennessey anticipates an average low-temperature of 73°F (22.8°C).

Heat index

August's heat index is appraised at a blisteringly hot 107.6°F (42°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Heat index determinations are made taking into account the shade and light air movements. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. 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. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

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

Rainfall

In Hennessey, Oklahoma, in August, during 10.5 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. In Hennessey, during the entire year, the rain falls for 107 days and collects up to 20.75" (527mm) of precipitation.

Snowfall

April through September are months without snowfall.

Daylight

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

Sunshine

In Hennessey, the average sunshine in August 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 estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index of 7 during August translates into these guidelines:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. 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. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.

Frequently asked questions

How hot does it get in August?

The average high-temperature and low-temperature during August are 93.9°F (34.4°C) and 73°F (22.8°C) respectively. The average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is appraised at 107.6°F (42°C).

What is the least humid month?

With an average relative humidity of 56%, August is the least humid month.

What is the average humidity in August?

The average relative humidity in August is 56%.

How many days does it rain in August?

In Hennessey, during August, the rain falls for 10.5 days and regularly aggregates up to 1.93" (49mm) of precipitation.

When it does not snow?

April through September are months without snowfall.

How many hours of daylight does Hennessey have in August?

The average day length in August is 13h and 29min.

When are sunrise and sunset in August?

On the first day of August, 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.

How many hours of sunshine does Hennessey have in August?

In Hennessey, Oklahoma, the average sunshine duration in August is 11h.

What are the months with the highest UV index?

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

How high is the UV index in August?

In August, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health risk 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
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Hennessey, Oklahoma, USA

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