Metro area air quality · 2025
Oklahoma City, OK
Median AQI 53 (Moderate). 42.0% of monitored days rated Good across this metro's EPA monitoring network.
- 53
- Median AQI
- 42.0%
- Good-air days
- 1
- Unhealthy days
- 7%
- Cleaner than US metros
Aggregated from EPA Air Quality System (2025), 274 monitored days. EPA AQS →
The verdict
The Oklahoma City, OK metro runs moderate on the EPA scale, among the more polluted US metros, a median AQI of 53 with 42.0% of 274 monitored days in the Good band.
- 53
- median AQI · Moderate
- 42.0%
- days rated Good
- 7%
- cleaner than US metros
- 459
- worst single reading
1 day reached Unhealthy or worse across the metro's monitors in 2025.
Insights: Oklahoma City, OK metro. Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 53 over 274 measured days in 2025, which corresponds to a Moderate band and a Poor metro-wide health grade. The monitored-day split lands at 115 Good days (42%), 151 Moderate (55%), and 7 Unhealthy-for-Sensitive-Groups (3%). The 90th-percentile AQI finished at 77 while the highest single-day reading hit 459 (Hazardous). Metro residents averaged roughly 12.6 clean-air days per 30-day window across the reporting year.
Across the 2020–2025 trend window, good days shifted by -19 and the median AQI moved +0 points, which classifies the multi-year trajectory as improving. The metro recorded 1 unhealthy-or-worse days combined, on those days the EPA recommends that sensitive groups limit prolonged outdoor exertion, and many schools and athletic programs adjust outdoor activity accordingly. Metros with comparable AQI profiles include Austin-Round Rock, TX (41.0% good, AQI 53); Beaumont-Port Arthur, TX (35.4% good, AQI 53); Detroit-Warren-Dearborn, MI (45.1% good, AQI 53).
Air Quality Summary
Median AQI
53
Moderate
Good Days
42.0%
115 of 274 days
Max AQI
459
Hazardous
Health Grade
Poor
90th pct: 77
AQI Day Breakdown (2025)
Distribution of 274 monitored days across EPA AQI categories.
Good
115
42%
Moderate
151
55%
USG
7
3%
Unhealthy
0
0%
Very Unhealthy
0
0%
Hazardous
1
0%
Health Impact Assessment
The Oklahoma City, OK metro area's air quality is rated Poor based on 42.0% good air days. There were 1 unhealthy days in 2025 when outdoor activity should be limited.
Air quality posed significant health risk in 2025. Sensitive groups, including people with asthma, COPD, cardiovascular conditions, children, pregnant women, and adults over 65, should monitor AirNow.gov alerts and limit outdoor activity on Unhealthy (AQI 151+) and Very Unhealthy (201+) days. Peak readings reached AQI 459, well into the Hazardous range.
Sensitive group advisory
People with asthma, COPD, heart disease, children, pregnant women, and adults 65+ should follow EPA AQI alerts daily and limit outdoor exertion when AQI exceeds 100. Real-time conditions: airnow.gov.
How does the Oklahoma City, OK metro compare?
How Oklahoma City, OK compares
5-Year Air Quality Trend
Air quality is improving in the Oklahoma City, OK metro. Best year: 2024 (149 good days).
| Year | Good | Moderate | Unhealthy | Median AQI | Max AQI |
|---|---|---|---|---|---|
| 2020 | 134 | 227 | 0 | 53 | 121 |
| 2021 | 110 | 245 | 0 | 56 | 140 |
| 2022 | 131 | 225 | 0 | 54 | 129 |
| 2023 | 128 | 222 | 0 | 54 | 143 |
| 2024 | 149 | 200 | 0 | 53 | 147 |
| 2025 | 115 | 151 | 0 | 53 | 459 |
Metros with Similar Air Quality
Metro areas across the US with a similar median AQI to Oklahoma City, OK.
Austin-Round Rock, TX
AQI 53 · 41.0% good
Beaumont-Port Arthur, TX
AQI 53 · 35.4% good
Detroit-Warren-Dearborn, MI
AQI 53 · 45.1% good
Hanford-Corcoran, CA
AQI 53 · 39.8% good
Indianapolis-Carmel-Anderson, IN
AQI 53 · 40.7% good
Atlanta-Sandy Springs-Roswell, GA
AQI 52 · 45.3% good
More Air Quality Data
Explore EPA air quality rankings and guides across U.S. metros and counties.
Cleanest Metro Areas
U.S. metros ranked by their share of Good air-quality days.
Worst Air Quality
Counties and metros with the most unhealthy air days.
All Metro Areas
Annual AQI by CBSA for every monitored U.S. metro area.
Best and Worst City Air
What drives urban air quality and how metro areas compare.
Air Quality Guides
Frequently Asked Questions
What is the air quality in the Oklahoma City, OK metro area? ▼
How many unhealthy air days does Oklahoma City, OK have? ▼
Is air quality in Oklahoma City, OK getting better or worse? ▼
What does AQI 53 mean for health? ▼
What is the 90th percentile AQI for Oklahoma City, OK? ▼
How does Oklahoma City, OK compare to other metro areas? ▼
Data Sources
Primary Source: U.S. Environmental Protection Agency (EPA), Air Quality System (AQS), Annual AQI by CBSA dataset, 2020–2025. See our methodology for how AQI, median, and coverage figures are computed.
Read our methodology , how this data is sourced, computed, and verified.
Source: U.S. EPA Air Quality System (AQS) Annual AQI by CBSA summary files (metro-level) · 2020–2025
Every figure on PlainAir is rendered directly from EPA AQS air-quality monitoring data, no number is typed in by an editor. This page draws directly on EPA AQS air-quality monitoring data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.