St. Petersburg Air Quality in 2024
In 2024, St. Petersburg's air quality (Tampa-St. Petersburg-Clearwater, FL area) had a median daily AQI of 51 (Moderate) across 362 monitored days. 5 days (1.4%) reached Unhealthy for Sensitive Groups or worse, 167 were Good, and the year's peak AQI was 143 (Unhealthy for Sensitive Groups). Fine particulate matter (PM2.5) set the daily AQI on 250 of those days. The cleanest month of 2024 was September (median AQI 44, 0 days above 100) and the worst was May (median 55, 2 days above 100, peak 143).
- Good: 46.1%
- Moderate: 52.5%
- Unhealthy for Sensitive Groups: 1.4%
- Unhealthy or worse: 0.0%
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How was St. Petersburg's air quality in 2024?
Moderate on a typical day: median AQI 51, with 5 days above AQI 100 out of 362 monitored — the 6th cleanest of 7 years on record for the area.
- ✓Peak AQI in 2024: 143 (Unhealthy for Sensitive Groups).
- ✓Fine particulate matter (PM2.5) was the main pollutant on 250 days.
- ✓Cleanest month: September; worst: May.
Frequently asked questions
What was the average AQI in St. Petersburg in 2024?▾
EPA's Air Quality System puts St. Petersburg's (Tampa-St. Petersburg-Clearwater, FL) median daily AQI for 2024 at 51, which is Moderate. 5 days were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 143.
Which month had the worst air quality in St. Petersburg in 2024?▾
The cleanest month of 2024 was September (median AQI 44, 0 days above 100) and the worst was May (median 55, 2 days above 100, peak 143).
Was 2024 a good or bad year for St. Petersburg's air?▾
Among the 7 years EPA has published for the area (2019–2025), 2024 ranks 6th cleanest by days above AQI 100. 2024's median of 51 is in line with the area's typical annual median of 51.
St. Petersburg month by month in 2024
St. Petersburg air quality month by month, 2024 (Tampa-St. Petersburg-Clearwater, FL, EPA AQS daily AQI)
| Month | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| January | 31 | 50 | 1 | 132 | PM2.5 |
| February | 29 | 55 | 0 | 83 | PM2.5 |
| March | 31 | 52 | 0 | 90 | PM2.5 |
| April | 30 | 59 | 1 | 108 | O3 |
| Mayworst | 31 | 55 | 2 | 143 | PM2.5 |
| June | 30 | 47 | 0 | 97 | PM2.5 |
| July | 31 | 52 | 0 | 79 | PM2.5 |
| August | 31 | 50 | 0 | 74 | PM2.5 |
| Septembercleanest | 30 | 44 | 0 | 58 | PM2.5 |
| October | 27 | 48 | 1 | 105 | O3 |
| November | 30 | 49 | 0 | 71 | PM2.5 |
| December | 31 | 47 | 0 | 61 | PM2.5 |
How 2024 compares
Among the 7 years EPA has published for the area (2019–2025), 2024 ranks 6th cleanest by days above AQI 100.
2024's median of 51 is in line with the area's typical annual median of 51.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in St. Petersburg
The latest EPA AirNow observation puts St. Petersburg's AQI at 38 (PM2.5). The figures above are multi-year annual statistics, not today's reading.
View current St. Petersburg air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Tampa-St. Petersburg-Clearwater, FL), 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.