Oklahoma City Air Quality in August
Across 2019–2025, Oklahoma City's August air quality had a median AQI of 58 (Moderate) over 217 monitored days in the Oklahoma City, OK area. 9.7% of August days (21 of 217) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 50.7% of days. The cleanest August on record here was 2019 (median AQI 54, 1 day above 100) and the worst was 2023 (median 77, 7 days above 100, peak AQI 143).
- Good: 18.0%
- Moderate: 72.4%
- Unhealthy for Sensitive Groups: 9.7%
- Unhealthy or worse: 0.0%
Extra Protection for Oklahoma City Homes
Air quality in Oklahoma City is moderate (AQI 73), with fine particles (PM2.5) the main concern. A True-HEPA purifier gives sensitive groups — kids, seniors and anyone with asthma or allergies — cleaner air indoors on days like today.
Recommended: Coway AP-1512HH Mighty — True HEPA + carbon · CADR ~246 CFM · rooms up to 361 sq ft
As an Amazon Associate, we earn from qualifying purchases.
How is the air in Oklahoma City in August?
Moderate on a typical day: median AQI 58 across 2019–2025, with 9.7% of August days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓18.0% of August days were Good (AQI 0–50), 72.4% Moderate (51–100).
- ✓21 days of 217 reached AQI 101+; the August peak was 143.
- ✓Best August: 2019; worst August: 2023.
Frequently asked questions
What is the air quality like in Oklahoma City in August?▾
Across 2019–2025, the median daily AQI in Oklahoma City in August was 58 (Moderate). 18.0% of days were Good, 72.4% Moderate, and 9.7% reached Unhealthy for Sensitive Groups or worse, based on 217 monitored days in EPA's Air Quality System.
Is August a good time for outdoor exercise in Oklahoma City?▾
A typical August day in Oklahoma City is Moderate (median AQI 58): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 10 of August days (9.7%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
Which pollutant causes Oklahoma City's August air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 50.7% of August days in Oklahoma City. The highest August AQI recorded in 2019–2025 was 143 (Unhealthy for Sensitive Groups), in 2023.
Oklahoma City August air quality, year by year
Oklahoma City August air quality by year (Oklahoma City, OK, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019cleanest | 31 | 54 | 1 | 119 | PM2.5 |
| 2020 | 31 | 58 | 1 | 108 | PM2.5 |
| 2021 | 31 | 58 | 3 | 138 | PM2.5 |
| 2022 | 31 | 56 | 1 | 105 | PM2.5 |
| 2023worst | 31 | 77 | 7 | 143 | O3 |
| 2024 | 31 | 71 | 7 | 136 | O3 |
| 2025 | 31 | 54 | 1 | 101 | PM2.5 |
What August air means in Oklahoma City
A typical August day in Oklahoma City is Moderate (median AQI 58): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 10 of August days (9.7%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.
August's median AQI of 58 is above Oklahoma City's whole-year median of 54, making it one of the area's dirtier periods. Nationally, the median August AQI across every EPA metro area (104,152 metro-days, 2019–2025) is 45, so Oklahoma City runs above the national August norm; 9.7% of its August days topped AQI 100 versus 3.5% nationally (above average).
August is part of Oklahoma City's summer season (June, July, August); the summer page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Oklahoma City
The latest EPA AirNow observation puts Oklahoma City's AQI at 73 (PM2.5). The figures above are multi-year month statistics, not today's reading.
View current Oklahoma City air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Oklahoma City, OK), 2019–2025. Daily AQI per CBSA is the highest AQI reported by any monitor in the area that day; the defining parameter is the pollutant that set it. Month and season statistics pool every such day in the period across all years listed. Retrieved 2026-09-09.