Oklahoma City, OK weather in August
August in Oklahoma City: hot and humid, with some rain. Highs 92°F, lows 69°F, about 7 wet days. This is the peak of the warm season in Oklahoma City. Midday heat is the main thing to plan around.
- Normal high
- 92°F
- Normal low
- 69°F
- Wet days
- 7
- 3.6 in total
- Muggy days
- 20
- dew point 65°F+
How August changes from start to finish
| August 1 | August 31 | |
|---|---|---|
| Normal high | 94°F | 89°F |
| Normal low | 71°F | 66°F |
| Chance of a wet day | 21% | 23% |
| Sunrise / sunset | 6:38 am / 8:34 pm | 7:01 am / 7:59 pm |
| Daylight | 13.9 h | 13.0 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
- 6 am71°Fdew point 66°F
- 9 am80°Fdew point 67°F
- Noon88°Fdew point 66°F
- 3 pm91°Fdew point 65°F
- 6 pm88°Fdew point 65°F
- 9 pm80°Fdew point 66°F
NOAA hourly normals (local standard time) from Oklahoma City Will Rogers Airport (7 mi away); average wind 9 mph; clear or few clouds in 60% of daytime hours, mostly cloudy or overcast in 26%.
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 more20 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 3.6 in; a dry August brings about 1.6 in and a wet one about 5.3 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 102°F
- Coolest August1992: average high 84°F
- Wettest August2008: 9.9 in
- Driest August2000: no measurable precipitation
- Highest reading113°F (August 3, 2012)
- Lowest reading50°F (August 20, 2015)
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
| July | August | September | |
|---|---|---|---|
| Normal high | 93°F | 92°F | 84°F |
| Normal low | 70°F | 69°F | 62°F |
| Wet days | 6 | 7 | 7 |
| Comfortable days | 0 | 0 | 5 |
| Daylight | 14.3 h | 13.5 h | 12.4 h |
Highs change by -1°F from July and -8°F into September.
How Oklahoma City ranks in August
- Normal high89th warmest of 378 cities; 2nd of 2 in Oklahoma
- Wet days134th driest of 378
- Comfortable days224th most of 341
What to pack for Oklahoma City in August
- Light, breathable clothing – highs near 92°F and about 20 muggy days
Heating and cooling
August has 0 heating degree days and 485 cooling degree days (base 65°F), 9% of the year's total heating and cooling demand.
Questions
How hot is Oklahoma City in August?
The normal high is 92°F and the normal low is 69°F. From 1991 to 2020 the hottest August reading was 113°F (August 3, 2012).
Does it rain a lot in Oklahoma City in August?
About 7 days in August have at least 0.01 in of precipitation, and the normal total is 3.6 in. The wettest August in 1991-2020 was in 2008 (10.0 in); the driest was in 2000, with no measurable precipitation.
Is August a good time to visit Oklahoma City?
August ranks 12th of 12 months on our comfort score for Oklahoma City (38 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: Oklahoma City Will Rogers Airport (USW00013967), 7.2 mi SW of the city center, 1,285 ft (89 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Cloud cover: Oklahoma City Tinker AFB (USW00013919), 8.3 mi ESE of the city center, 1,260 ft (64 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Will Rogers World Airport (723530-13967), 7.2 mi SW of the city center, 1,279 ft (83 ft higher than the city). Hourly observations, 1991-2020.