August weather forecast
Halley, OK

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Weather in August

The last month of the summer, August, is also a hot month in Halley, Oklahoma, with an average temperature fluctuating between 71.1°F (21.7°C) and 92.3°F (33.5°C).

Temperature

Upon the beginning of August, Halley's high-temperatures register at a still hot 92.3°F (33.5°C), closely mirroring the preceding month. An average minimum temperature of 71.1°F (21.7°C) marks the month of August.

Heat index

The heat index value during August is appraised at a blisteringly hot 109.4°F (43°C). Stay wary: Heat exhaustion and heat cramps are possible. Heatstroke can ensue from extended effort.
The standards for the heat index are set for locations in shade and under light breezes. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', offers an insight into how hot it feels when we factor in moisture content. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

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

Rainfall

In Halley, in August, it is raining for 12.7 days, with typically 2.95" (75mm) of accumulated precipitation. Throughout the year, there are 138.1 rainfall days, and 30.71" (780mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In August, the average length of the day is 13h and 25min.
On the first day of August, sunrise is at 6:33 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 7:50 pm CDT.

Sunshine

With an average of 10.9h of sunshine, August has the most sunshine of the year.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 7 during August translates into the following guidance:
Ward off overexposure. Defence against solar harm is crucial. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

Halley in August has an average high-temperature of 92.3°F (33.5°C) and an average low-temperature of 71.1°F (21.7°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is appraised at 109.4°F (43°C).

What is the least humid month?

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

What is the average humidity in August?

The average relative humidity in August is 66%.

How much does it rain in August?

In Halley, Oklahoma, during August, the rain falls for 12.7 days and regularly aggregates up to 2.95" (75mm) of precipitation.

When it does not snow?

May through October are months without snowfall.

What is the average length of the day in August?

In August, the average day length is 13h and 25min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:33 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 7:50 pm CDT.

What month has the most sunshine?

The month with the most sunshine in Halley is August, with an average of 10.9h of sunshine.

How long on average sun shines in August?

The average sunshine duration in August is 10.9h.

When is the highest UV index in Halley?

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

What is the UV index intensity in August?

In Halley, the average daily maximum UV index in August is 7. A UV Index reading of 6 to 7 represents a high hazard to health from 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
Halley, OK

Average temperature in August - Halley, OK
  • Average high temperature in August: 92.3°F

The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (48.9°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 (33.3°F).

Average pressure in August
Halley, OK

Average pressure in August - Halley, 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 (29.91"Hg).

Average wind speed in August
Halley, OK

Average wind speed in August - Halley, OK
  • Average wind speed in August: 6.2mph

The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in August
Halley, OK

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

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (66%).

Average rainfall in August
Halley, OK

Average rainfall in August - Halley, OK
  • Average rainfall in August: 2.95"

The wettest month (with the highest rainfall) is May (4.41").
The driest month (with the least rainfall) is February (1.73").

Average rainfall days in August
Halley, OK

Average rainfall days in August - Halley, OK
  • Average rainfall days in August: 12.7 days

The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is January (7.7 days).

Average snowfall in August
Halley, OK

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

The month with the highest snowfall is February (1.14").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Halley, OK

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

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in August / Average sunshine in August - Halley, OK
  • Average daylight in August: 13h and 2min

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 54min).

  • Average sunshine in August: 10h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in August
Halley, OK

Average sunshine days in August - Halley, OK
  • Average sunshine days in August: 15.5 days

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is April (14.5 days).

Average UV index in August
Halley, OK

Average UV index in August - Halley, 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
Halley, OK

Average cloud cover in August - Halley, OK
  • Average cloud cover in August: 22

The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 22).

Average visibility in August
Halley, OK

Average visibility in August - Halley, 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).

Halley, Oklahoma, USA

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