Pittsburgh Air Quality in 2024
In 2024, Pittsburgh's air quality (Pittsburgh, PA area) had a median daily AQI of 53 (Moderate) across 366 monitored days. 10 days (2.7%) reached Unhealthy for Sensitive Groups or worse, 164 were Good, and the year's peak AQI was 129 (Unhealthy for Sensitive Groups). Fine particulate matter (PM2.5) set the daily AQI on 193 of those days. The cleanest month of 2024 was November (median AQI 42, 0 days above 100) and the worst was July (median 71, 4 days above 100, peak 129).
- Good: 44.8%
- Moderate: 52.5%
- Unhealthy for Sensitive Groups: 2.7%
- Unhealthy or worse: 0.0%
Extra Protection for Pittsburgh Homes
Air quality in Pittsburgh is moderate (AQI 56), 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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How was Pittsburgh's air quality in 2024?
Moderate on a typical day: median AQI 53, with 10 days above AQI 100 out of 366 monitored — the 3rd cleanest of 7 years on record for the area.
- ✓Peak AQI in 2024: 129 (Unhealthy for Sensitive Groups).
- ✓Fine particulate matter (PM2.5) was the main pollutant on 193 days.
- ✓Cleanest month: November; worst: July.
Frequently asked questions
What was the average AQI in Pittsburgh in 2024?▾
EPA's Air Quality System puts Pittsburgh's (Pittsburgh, PA) median daily AQI for 2024 at 53, which is Moderate. 10 days were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 129.
Which month had the worst air quality in Pittsburgh in 2024?▾
The cleanest month of 2024 was November (median AQI 42, 0 days above 100) and the worst was July (median 71, 4 days above 100, peak 129).
Was 2024 a good or bad year for Pittsburgh's air?▾
Among the 7 years EPA has published for the area (2019–2025), 2024 ranks 3rd cleanest by days above AQI 100. 2024's median of 53 is below the area's typical annual median of 58.
Pittsburgh month by month in 2024
Pittsburgh air quality month by month, 2024 (Pittsburgh, PA, EPA AQS daily AQI)
| Month | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| January | 31 | 44 | 0 | 83 | PM2.5 |
| February | 29 | 54 | 1 | 103 | PM2.5 |
| March | 31 | 43 | 0 | 93 | O3 |
| April | 30 | 50 | 0 | 93 | O3 |
| May | 31 | 54 | 0 | 100 | O3 |
| June | 30 | 62 | 0 | 100 | O3 |
| Julyworst | 31 | 71 | 4 | 129 | O3 |
| August | 31 | 59 | 3 | 112 | O3 |
| September | 30 | 49 | 1 | 105 | O3 |
| October | 31 | 54 | 1 | 107 | PM2.5 |
| Novembercleanest | 30 | 42 | 0 | 86 | PM2.5 |
| December | 31 | 52 | 0 | 63 | PM2.5 |
How 2024 compares
Among the 7 years EPA has published for the area (2019–2025), 2024 ranks 3rd cleanest by days above AQI 100.
2024's median of 53 is below the area's typical annual median of 58.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Pittsburgh
The latest EPA AirNow observation puts Pittsburgh's AQI at 56 (PM2.5). The figures above are multi-year annual statistics, not today's reading.
View current Pittsburgh air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Pittsburgh, PA), 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.