Metro area air quality · 2025
Miami, OK
Median AQI 49 (Good). 53.1% of monitored days rated Good across this metro's EPA monitoring network.
- 49
- Median AQI
- 53.1%
- Good-air days
- 1
- Unhealthy days
- 16%
- Cleaner than US metros
Aggregated from EPA Air Quality System (2025), 273 monitored days. EPA AQS →
The verdict
The Miami, OK metro runs good on the EPA scale, among the more polluted US metros, a median AQI of 49 with 53.1% of 273 monitored days in the Good band.
- 49
- median AQI · Good
- 53.1%
- days rated Good
- 16%
- cleaner than US metros
- 305
- worst single reading
1 day reached Unhealthy or worse across the metro's monitors in 2025.
Insights: Miami, OK metro. Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 49 over 273 measured days in 2025, which corresponds to a Good band and a Moderate metro-wide health grade. The monitored-day split lands at 145 Good days (53%), 126 Moderate (46%), and 1 Unhealthy-for-Sensitive-Groups (0%). The 90th-percentile AQI finished at 66 while the highest single-day reading hit 305 (Hazardous). Metro residents averaged roughly 15.9 clean-air days per 30-day window across the reporting year.
Across the 2020–2025 trend window, good days shifted by -57 and the median AQI moved +3 points, which classifies the multi-year trajectory as worsening. 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 Colorado Springs, CO (58.2% good, AQI 49); Farmington, NM (58.2% good, AQI 49); Greenville-Anderson-Mauldin, SC (53.5% good, AQI 49).
Air Quality Summary
Median AQI
49
Good
Good Days
53.1%
145 of 273 days
Max AQI
305
Hazardous
Health Grade
Moderate
90th pct: 66
AQI Day Breakdown (2025)
Distribution of 273 monitored days across EPA AQI categories.
Good
145
53%
Moderate
126
46%
USG
1
0%
Unhealthy
0
0%
Very Unhealthy
0
0%
Hazardous
1
0%
Health Impact Assessment
The Miami, OK metro area's air quality is rated Moderate based on 53.1% 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 305, 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 Miami, OK metro compare?
How Miami, OK compares
5-Year Air Quality Trend
Air quality is worsening in the Miami, OK metro. Best year: 2020 (202 good days).
| Year | Good | Moderate | Unhealthy | Median AQI | Max AQI |
|---|---|---|---|---|---|
| 2020 | 202 | 148 | 1 | 46 | 154 |
| 2021 | 90 | 258 | 3 | 59 | 169 |
| 2022 | 151 | 203 | 4 | 53 | 238 |
| 2023 | 141 | 215 | 1 | 54 | 162 |
| 2024 | 181 | 184 | 0 | 51 | 288 |
| 2025 | 145 | 126 | 0 | 49 | 305 |
Metros with Similar Air Quality
Metro areas across the US with a similar median AQI to Miami, OK.
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 Miami, OK metro area? ▼
How many unhealthy air days does Miami, OK have? ▼
Is air quality in Miami, OK getting better or worse? ▼
What does AQI 49 mean for health? ▼
What is the 90th percentile AQI for Miami, OK? ▼
How does Miami, 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.