Muskogee, Oklahoma Air Quality Today
AirHistory tracks long-run EPA monitoring rather than live readings, so for the live number check AirNow.gov below. As a baseline, Muskogee, Oklahoma's most recent EPA year (2019) posted a median AQI of 18 (Good) against a 5-year median of 18 and an overall Grade of A. The dominant pollutant is Coarse Particulate Matter (PM10), which tells you which days are most likely to spike.
Check Today's Live AQI in Muskogee, Oklahoma
AirHistory is built on 10 years of EPA Air Quality System records, so it shows you what air quality in Muskogee, Oklahoma typically looks like — not the live reading for this exact hour. For today's real-time AQI, check AirNow.gov (the EPA's official live index) or the AirNow Fire and Smoke Map during wildfire season.
That said, the history is the best predictor of a normal day. In 2019, Muskogee, Oklahoma posted a median AQI of 18 (Good), with 117 "Good" days and 2 days that crossed into "Unhealthy for Sensitive Groups" or worse. The dominant pollutant, Coarse Particulate Matter (PM10), is the one most likely to push today's number up — Coarse particulate matter — particles up to 10 micrometers across — typically comes from dust, construction sites, agriculture, unpaved roads, and natural sources like windblown soil. PM10 is less hazardous than PM2.5 because the larger particles do not penetrate as deeply into the lungs, but high levels still aggravate asthma and irritate airways.
Muskogee, Oklahoma Air Quality Snapshot
| Air Quality Grade | A82/100 |
| 5-Year Median AQI | 18 (Good) |
| Most Recent Median AQI (2019) | 18 (Good) |
| Dominant Pollutant | Coarse Particulate Matter (PM10) |
| 10-Year Trend | Improving (-0.77 AQI/yr) |
| Unhealthy Days (last 5 yr) | 2 |
| National Rank (cleanest = #1) | #52 of 1,020 (5th cleanest percentile) |
| Oklahoma Rank | #2 of 22 |
What Does the A Grade Mean?
Muskogee, Oklahoma earns an A — it is among the cleanest U.S. cities tracked by EPA monitoring, with median AQI averaging just 18 over the past five years. Days in the "Good" category dominate the calendar; air-quality alerts are rare.
Muskogee, Oklahoma's 5-year median AQI of 18 is 23 points below the national average of 41 — meaningfully cleaner than the typical U.S. metro tracked here. Within Oklahoma, Muskogee, Oklahoma runs cleaner than the state average of 42 — a positive signal that local conditions (terrain, wind patterns, emission sources) are working in residents' favor.
For context within Oklahoma: Custer, Oklahoma currently holds the state's cleanest grade (A, AQI 14), while Oklahoma, Oklahoma sits at the bottom (C, AQI 53).
What's in Muskogee, Oklahoma's Air?
The dominant pollutant in Muskogee, Oklahoma is Coarse Particulate Matter (PM10). Coarse particulate matter — particles up to 10 micrometers across — typically comes from dust, construction sites, agriculture, unpaved roads, and natural sources like windblown soil. PM10 is less hazardous than PM2.5 because the larger particles do not penetrate as deeply into the lungs, but high levels still aggravate asthma and irritate airways.
Days by Dominant Pollutant (2019)
| Pollutant | Days as Dominant | Share of Year |
|---|---|---|
| Coarse Particulate Matter (PM10) | 134 | 100% |
Is the Air Getting Better or Worse?
Air quality in Muskogee, Oklahoma has been improving over the past decade, with median AQI dropping by roughly 0.8 points per year. That is consistent with the broader national pattern — most U.S. metros have seen steady reductions in particulate and ozone pollution since the 2010s as cleaner vehicles and power plants come online.
In 2014, Muskogee, Oklahoma posted a median AQI of 24. By 2019 that figure was 18 — a drop of 6 AQI points cleaner across 6 years of EPA records.
Year-by-Year AQI in Muskogee, Oklahoma
| Year | Median AQI | Good Days | Unhealthy Days | Dominant Pollutant |
|---|---|---|---|---|
| 2014 | 24 | 267 | 0 | PM10 |
| 2015 | 19 | 294 | 0 | PM10 |
| 2016 | 17 | 350 | 0 | PM10 |
| 2017 | 20 | 263 | 0 | PM10 |
| 2018 | 19 | 315 | 2 | PM10 |
| 2019 | 18 | 117 | 2 | PM10 |
Health Context for Muskogee, Oklahoma
Across the past five years, this area has logged just 2 days where AQI rose into the "Unhealthy for Sensitive Groups" range or worse — about 0 days per year, or roughly one every other month. That is a low count by national standards.
For most healthy adults, current air quality in this area does not require any change in behavior. People with severe asthma, COPD, or recent cardiac events should still keep an eye on daily AQI alerts, especially during wildfire season. PM10 is largely a near-source pollutant — staying upwind of busy roads, construction, and unpaved areas can substantially reduce exposure.
How This Grade Is Calculated
The AirHistory Air Quality Grade combines four signals: the 5-year median AQI (40% of the score), the 10-year trend direction (30%), the count of unhealthy days per year (20%), and the dominant pollutant type (10%). All four come directly from the EPA Air Quality System (AQS), which aggregates readings from federally certified monitors. Read the full methodology.
More about Muskogee, Oklahoma
Muskogee, Oklahoma has an Air Quality Grade of A (excellent) with a 5-year median AQI of 18. The dominant pollutant is Coarse Particulate Matter (PM10), and air quality has been improving over the past decade.
This answer pulls from the EPA Air Quality System (AQS), the authoritative federal source for U.S. air quality and pollution monitoring. The headline number above is the direct answer; what follows is the additional context most readers need to use the answer for a real decision rather than just a fact lookup.
A practical caveat: the headline answer above reflects the most recent the EPA Air Quality System (AQS) vintage; underlying data is often revised for months after first publication, and the right reference for any specific decision is whichever vintage is current at the time of the decision. The as-of date is stamped on every page.
Source: EPA Outdoor Air Quality Data, 2026.