PlainClimate

Oklahoma City weather in August: Oklahoma City, Oklahoma: normal highs, lows, rain and records for August

Oklahoma City in August has a normal high of 92°F and a normal low of 69°F, a daily mean of 81°F, falling from 94°F on the 1st to 89°F by the 31st. Measurable precipitation falls on 7 days in a normal August, 3.60 inches in all. (NOAA 1991-2020 normals)

In metric: a normal high of 33°C and low of 21°C, 91 mm of precipitation in August.

  • NOAA stationOklahoma City Will Rogers Airport
  • Station IDUSW00013967
  • Location35.39°N 97.60°W
  • Elevation1,285 ft (392 m)
  • From the center7 miles
  • Population712,919
  1. Jan 49° 27°
  2. Feb 54° 31°
  3. Mar 63° 40°
  4. Apr 71° 48°
  5. May 79° 58°
  6. Jun 88° 66°
  7. Jul 93° 70°
  8. Aug 92° 69°
  9. Sep 84° 62°
  10. Oct 73° 49°
  11. Nov 61° 38°
  12. Dec 50° 30°

Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.

How warm is Oklahoma City in August?

The normal high is 92°F and the normal low 69°F, for a daily mean of 80.7°F. August is 1.0°F cooler than July and 8.0°F warmer than September. August is the 2nd warmest month of the year in Oklahoma City and the 4th wettest. Across the month the normal high falls 5°F, from 94°F on August 1 to 89°F on August 31. From one year to the next August's mean temperature typically moves about 3.1°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 78°F and 84°F.

Oklahoma City in August, day by day: normal high and low

Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 23%).

Normal high and low on five days of August, with the chance of precipitation
DayHighLowChance of 0.01 inChance of 0.10 in
August 194°F71°F21%15%
August 894°F70°F21%16%
August 1593°F70°F22%16%
August 2291°F68°F22%16%
August 3189°F66°F23%17%
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 1, coldest night August 31)
Oklahoma City: NOAA 1991-2020 daily normals for each day of August
DayHighLowChance of 0.01 inChance of 0.10 inDaylight
August 194°F71°F21%15%14 h
August 294°F71°F21%15%14 h
August 394°F71°F21%15%13 h 50 min
August 494°F71°F21%15%13 h 50 min
August 594°F71°F21%15%13 h 50 min
August 694°F71°F21%15%13 h 50 min
August 794°F70°F21%15%13 h 50 min
August 894°F70°F21%16%13 h 50 min
August 994°F70°F21%16%13 h 40 min
August 1094°F70°F22%16%13 h 40 min
August 1193°F70°F22%16%13 h 40 min
August 1293°F70°F22%16%13 h 40 min
August 1393°F70°F22%16%13 h 40 min
August 1493°F70°F22%16%13 h 30 min
August 1593°F70°F22%16%13 h 30 min
August 1693°F69°F22%16%13 h 30 min
August 1792°F69°F22%16%13 h 30 min
August 1892°F69°F22%16%13 h 30 min
August 1992°F69°F22%16%13 h 20 min
August 2092°F69°F22%16%13 h 20 min
August 2192°F69°F22%16%13 h 20 min
August 2291°F68°F22%16%13 h 20 min
August 2391°F68°F22%16%13 h 20 min
August 2491°F68°F22%16%13 h 10 min
August 2591°F68°F22%16%13 h 10 min
August 2690°F68°F22%16%13 h 10 min
August 2790°F67°F23%17%13 h 10 min
August 2890°F67°F23%17%13 h 10 min
August 2990°F67°F23%17%13 h
August 3089°F67°F23%17%13 h
August 3189°F66°F23%17%13 h
Normal high
92°FAugust average
Normal low
69°FAugust average
Precipitation
3.60 inmonth total
Days with precipitation
70.01 inch or more
Days at 90°F or more
22
Daylight
14 h to 13 hAugust 1 to August 31
Days at 70°F or more
31
Days at 80°F or more
30
Sunshine
87%of clear-sky sunlight (NASA)

Source: NOAA NCEI 1991-2020 daily normals, station USW00013967; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.

Does it rain in Oklahoma City in August?

On a given August day the chance of 0.01 inch or more is 22% on average, highest around August 31 (23%). In all, 3.60 in falls on 7 days of a normal August, 1 of them with an inch or more.

In a normal August in Oklahoma City, 22 days reach 90°F.

Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00013967.

How humid and windy is Oklahoma City in August?

At 3 p.m. the normal temperature is 89°F with 43% relative humidity and a dew point of 64°F; at 6 a.m. it is 70°F with 82% humidity. The wind averages 9.0 mph, most often from the south-southeast in the afternoon.

A normal August day at the station, hour by hour (local standard time)
TimeTemperatureDew pointHumidityWindClear or few clouds
6 a.m.70°F64°F82%6.9 mph46%
9 a.m.78°F66°F65%10.3 mph49%
noon87°F65°F49%10.8 mph42%
3 p.m.89°F64°F43%10.7 mph31%
6 p.m.86°F63°F47%10.7 mph48%
9 p.m.77°F65°F65%8.6 mph55%

Source: NOAA NCEI 1991-2020 hourly normals, station USW00013967. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).

What are the records for August in Oklahoma City?

The warmest August temperature on Oklahoma City's official record (since 1890) is 113°F, on August 11, 1936; the coldest is 49°F, on August 23, 1891. The wettest August brought 9.95 in (2008).

The August mean against the 1991-2020 normal of 80.7°F: 2021 80.8°F (+0.1), 2022 82.7°F (+2.0), 2023 84.2°F (+3.5), 2024 82.7°F (+2.0), 2025 79.4°F (−1.3), 2026 87.9°F (+7.2). 5 of 6 ran warmer than normal.

Oklahoma City: August in recent years against the 1991-2020 normal
AugustMeanAgainst normalPrecip.
202180.8°F+0.1°F3.54 in
202282.7°F+2.0°F2.04 in
202384.2°F+3.5°F0.77 in
202482.7°F+2.0°F6.75 in
202579.4°F−1.3°F4.66 in
202687.9°F+7.2°F0.18 in

Source: records: ACIS, NWS threaded record OKCthr; recent months: ACIS, station USW00013967. Records and recent months use complete months only.

How does August in Oklahoma City compare across Oklahoma?

Across the 134 places PlainClimate covers in Oklahoma, August normal highs run from 90°F in Kenton to 96°F in Lawton; Oklahoma City's is 92°F.

Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.

Other months and places