Oklahoma City Air Quality in 2025

In 2025, Oklahoma City's air quality (Oklahoma City, OK area) had a median daily AQI of 52 (Moderate) across 365 monitored days. 8 days (2.2%) reached Unhealthy for Sensitive Groups or worse, 162 were Good, and the year's peak AQI was 459 (Hazardous). Fine particulate matter (PM2.5) set the daily AQI on 180 of those days. The cleanest month of 2025 was January (median AQI 34, 0 days above 100) and the worst was April (median 60, 2 days above 100, peak 108).

52
Median AQI
Moderate
8
Days above AQI 100
2.2% of 365 days
77
90th percentile AQI
worst 1 day in 10
459
Peak AQI
Hazardous
PM2.5
Main pollutant
180 of 365 days
162
Good days
44.4% of days
  • Good: 44.4%
  • Moderate: 53.4%
  • Unhealthy for Sensitive Groups: 1.9%
  • Unhealthy or worse: 0.3%

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.

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QUICK ANSWER

How was Oklahoma City's air quality in 2025?

Moderate on a typical day: median AQI 52, with 8 days above AQI 100 out of 365 monitored — the 3rd cleanest of 7 years on record for the area.

  • Peak AQI in 2025: 459 (Hazardous).
  • Fine particulate matter (PM2.5) was the main pollutant on 180 days.
  • Cleanest month: January; worst: April.

Frequently asked questions

What was the average AQI in Oklahoma City in 2025?

EPA's Air Quality System puts Oklahoma City's (Oklahoma City, OK) median daily AQI for 2025 at 52, which is Moderate. 8 days were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 459.

Which month had the worst air quality in Oklahoma City in 2025?

The cleanest month of 2025 was January (median AQI 34, 0 days above 100) and the worst was April (median 60, 2 days above 100, peak 108).

Was 2025 a good or bad year for Oklahoma City's air?

Among the 7 years EPA has published for the area (2019–2025), 2025 ranks 3rd cleanest by days above AQI 100. 2025's median of 52 is in line with the area's typical annual median of 54.

Oklahoma City month by month in 2025

Oklahoma City air quality month by month, 2025 (Oklahoma City, OK, EPA AQS daily AQI)

MonthDays monitoredMedian AQIDays above 100Peak AQIMain pollutant
Januarycleanest3134056PM2.5
February2849065PM2.5
March31511459O3
Aprilworst30602108O3
May31532119O3
June30541108O3
July3154078PM2.5
August31541101PM2.5
September30641126O3
October3151090O3
November3046071O3
December3143067PM2.5

How 2025 compares

Among the 7 years EPA has published for the area (2019–2025), 2025 ranks 3rd cleanest by days above AQI 100.

2025's median of 52 is in line with the area's typical annual median of 54.

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 annual 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.