Climateby Month

Tulsa, OK weather in August

NOAA 1991-2020 normals and daily records · Tulsa all year

In August, Tulsa sees highs around 93°F and lows around 72°F: hot and oppressively humid, with some rain. Rain falls on about 7 days. It is one of the warmest months in Tulsa. Plan outdoor time for mornings and evenings.

Normal high
93°F
Normal low
72°F
Wet days
7
3.4 in total
Muggy days
24
dew point 65°F+

How August changes from start to finish

Normal values at the start and end of August
August 1August 31
Normal high95°F90°F
Normal low73°F68°F
Chance of a wet day22%24%
Sunrise / sunset6:31 am / 8:29 pm6:54 am / 7:53 pm
Daylight14.0 h13.0 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).

A typical August day

  1. 6 am73°Fdew point 67°F
  2. 9 am81°Fdew point 68°F
  3. Noon88°Fdew point 68°F
  4. 3 pm91°Fdew point 67°F
  5. 6 pm89°Fdew point 66°F
  6. 9 pm81°Fdew point 68°F

NOAA hourly normals (local standard time) from Tulsa Intl Airport (7 mi away); average wind 8 mph.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
  • Hot dayshigh 90°F or more22 of 31
  • Muggy daysdaily mean dew point 65°F or more24 of 31
  • Wet daysat least 0.01 in of rain or melted snow7 of 31
  • Notable rainat least 0.10 in5 of 31
  • Freezing nightslow 32°F or below0 of 31
  • Snow on the groundsnow depth 1 in or more0 of 31

Average days per August, counted from daily records for each year 1991-2020.

Rain in August

Normal precipitation is 3.4 in; a dry August brings about 1.5 in and a wet one about 4.8 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.

How August varies from year to year

  • Warmest August, 1991-20202011: average high 100°F
  • Coolest August1992: average high 86°F
  • Wettest August2003: 8.8 in
  • Driest August2000: 0.01 in
  • Highest reading113°F (August 3, 2011)
  • Lowest reading50°F (August 31, 2009)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

August compared with July and September

JulyAugustSeptember
Normal high94°F93°F85°F
Normal low73°F72°F63°F
Wet days778
Comfortable days005
Daylight14.3 h13.5 h12.4 h

Highs change by -1°F from July and -8°F into September.

Nearby alternatives in August

How Tulsa ranks in August

  • Normal high80th warmest of 378 cities; 1st of 2 in Oklahoma
  • Wet days138th driest of 378
  • Comfortable days216th most of 341

What to pack for Tulsa in August

  • Light, breathable clothing – highs near 93°F and about 24 muggy days

Heating and cooling

August has 0 heating degree days and 535 cooling degree days (base 65°F), 10% of the year's total heating and cooling demand.

Questions

How hot is Tulsa in August?

The normal high is 93°F and the normal low is 72°F. From 1991 to 2020 the hottest August reading was 113°F (August 3, 2011).

Does it rain a lot in Tulsa in August?

About 7 days in August have at least 0.01 in of precipitation, and the normal total is 3.4 in. The wettest August in 1991-2020 was in 2003 (8.8 in); the driest was in 2000 (0.01 in).

Is August a good time to visit Tulsa?

August ranks 12th of 12 months on our comfort score for Tulsa (39 out of 100). It has almost no comfortable days and about 22 days at 90°F or hotter. The best month is April.

Where the numbers come from

  • Temperature, rain, snowfall, snow depth, frost dates and humidity and wind by hour: Tulsa Intl Airport (USW00013968), 6.7 mi ENE of the city center, 650 ft (72 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Tulsa International Airport (723560-13968), 7.1 mi ENE of the city center, 639 ft (83 ft lower than the city). Hourly observations, 1991-2020.
  • Not available for this location: cloud cover (no station close enough or similar enough in elevation).