August weather forecast
Tulsa, OK

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A bridge over the Arkansas River overlooking the scenic Tulsa city in Oklahoma
A bridge over the Arkansas River overlooking the scenic Tulsa city in Oklahoma

Weather in August

August continues July's hot weather streak in Tulsa, with a slight cooling trend towards its tail end. The heat doesn't subside significantly but with August, there's a sense of anticipation in the air for cooler fall days ahead. The saturation of humidity remains high, providing a certain stickiness to the air. Rainfall is relatively higher in August than July, although not dramatically enough to offer a substantial break from the heat. Despite these rains, sunshine hours remain high, reinforcing the lingering summer.

Temperature

As July transitions into August, Tulsa records an average high-temperature of a still tropical 90.5°F (32.5°C), showing a gentle shift from the preceding month. The average temperature drops to a pleasant 70.3°F (21.3°C) during the night in the month of August.

Heat index

The heat index value during August is calculated to be a scorching 105.8°F (41°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', takes into account both air temperature and humidity to illustrate what people actually feel. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. 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.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

The months with the lowest humidity are January, August and October, with an average relative humidity of 67%.

Rainfall

In August, the rain falls for 11.5 days. Throughout August, 2.17" (55mm) of precipitation is accumulated. In Tulsa, during the entire year, the rain falls for 117.1 days and collects up to 20.28" (515mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In August, the average length of the day in Tulsa is 13h and 29min.
On the first day of the month, sunrise is at 6:31 am and sunset at 8:28 pm. On the last day of August, in Tulsa, sunrise is at 6:55 am and sunset at 7:52 pm CDT.

Sunshine

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

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 7. 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: The maximum UV index, 7 during August, leads to the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.

Frequently asked questions

How hot is it in August?

The average high-temperature and low-temperature during August are 90.5°F (32.5°C) and 70.3°F (21.3°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is calculated to be 105.8°F (41°C).

What is the least humid month in Tulsa?

January, August and October, with an average relative humidity of 67%, are the least humid months.

What is the average humidity in August?

The average relative humidity in August is 67%.

How many days does it rain in August?

In Tulsa, in August, during 11.5 rainfall days, 2.17" (55mm) of precipitation is typically accumulated.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in August?

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

What time are sunrise and sunset in August in Tulsa?

On the first day of August, sunrise is at 6:31 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 7:52 pm CDT.

What month has the most sunshine?

The month with the most sunshine is August, with an average of 11h of sunshine.

How long on average sun shines in August?

The average sunshine duration in August is 11h.

What is the month with the highest UV index?

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

What is the UV index intensity in August?

In August, the average daily maximum UV index 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
Tulsa, OK

Average temperature in August - Tulsa, OK
  • Average high temperature in August: 90.5°F

The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (46.6°F).

  • Average low temperature in August: 70.3°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).

Average pressure in August
Tulsa, OK

Average pressure in August - Tulsa, 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 (29.89"Hg).

Average wind speed in August
Tulsa, OK

Average wind speed in August - Tulsa, OK
  • Average wind speed in August: 7.1mph

The windiest month (with the highest average wind speed) is March (10.7mph).
The calmest month (with the lowest average wind speed) is July (7mph).

Average humidity in August
Tulsa, OK

Average humidity in August - Tulsa, OK
  • Average humidity in August: 67%

The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January, August and October (67%).

Average rainfall in August
Tulsa, OK

Average rainfall in August - Tulsa, OK
  • Average rainfall in August: 2.17"

The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is January (0.75").

Average rainfall days in August
Tulsa, OK

Average rainfall days in August - Tulsa, OK
  • Average rainfall days in August: 11.5 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is December (4.9 days).

Average snowfall in August
Tulsa, OK

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

The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Tulsa, OK

Average snowfall days in August - Tulsa, 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, September and October (0 days).

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

Average daylight in August / Average sunshine in August - Tulsa, 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 42min).

  • 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).

Average sunshine days in August
Tulsa, OK

Average sunshine days in August - Tulsa, OK
  • Average sunshine days in August: 17.4 days

The month with the most sunshine days is December (22.7 days).
The month with the least sunshine days is May (14.3 days).

Average UV index in August
Tulsa, OK

Average UV index in August - Tulsa, 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
Tulsa, OK

Average cloud cover in August - Tulsa, OK
  • Average cloud cover in August: 21

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in August
Tulsa, OK

Average visibility in August - Tulsa, 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).

Tulsa, Oklahoma, USA

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