Tallahassee Air Quality in Fall
Across 2019–2025, Tallahassee's fall (September–November) air quality had a median AQI of 46 (Good) over 632 monitored days in the Tallahassee, FL area. 0.2% of fall days (1 of 632) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 85.1% of days. The cleanest fall on record here was 2024 (median AQI 43, 0 days above 100) and the worst was 2023 (median 42, 1 day above 100, peak AQI 124).
- Good: 58.2%
- Moderate: 41.6%
- Unhealthy for Sensitive Groups: 0.2%
- Unhealthy or worse: 0.0%
Extra Protection for Tallahassee Homes
Air quality in Tallahassee is moderate (AQI 53), 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.
Recommended: Coway AP-1512HH Mighty — True HEPA + carbon · CADR ~246 CFM · rooms up to 361 sq ft
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How is the air in Tallahassee in fall?
Good on a typical day: median AQI 46 across 2019–2025, with 0.2% of fall days above AQI 100. Fine particulate matter (PM2.5) is the main driver.
- ✓58.2% of fall days were Good (AQI 0–50), 41.6% Moderate (51–100).
- ✓1 day of 632 reached AQI 101+; the fall peak was 124.
- ✓Cleanest month: September; worst month: October.
Frequently asked questions
What is the air quality like in Tallahassee in fall?▾
Across 2019–2025, the median daily AQI in Tallahassee in fall was 46 (Good). 58.2% of days were Good, 41.6% Moderate, and 0.2% reached Unhealthy for Sensitive Groups or worse, based on 632 monitored days in EPA's Air Quality System.
Is fall a good time for outdoor exercise in Tallahassee?▾
A typical fall day in Tallahassee sits in the Good range (median AQI 46), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of fall days reached AQI 101+ in 2019–2025.
Which pollutant causes Tallahassee's fall air quality problems?▾
Fine particulate matter (PM2.5) set the daily AQI on 85.1% of fall days in Tallahassee. The highest fall AQI recorded in 2019–2025 was 124 (Unhealthy for Sensitive Groups), in 2023.
Tallahassee fall air quality, year by year
Tallahassee fall air quality by year (Tallahassee, FL, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 91 | 46 | 0 | 65 | PM2.5 |
| 2020 | 91 | 45 | 0 | 85 | PM2.5 |
| 2021 | 91 | 51 | 0 | 64 | PM2.5 |
| 2022 | 91 | 47 | 0 | 73 | PM2.5 |
| 2023worst | 91 | 42 | 1 | 124 | PM2.5 |
| 2024cleanest | 86 | 43 | 0 | 87 | PM2.5 |
| 2025 | 91 | 47 | 0 | 80 | PM2.5 |
What fall air means in Tallahassee
A typical fall day in Tallahassee sits in the Good range (median AQI 46), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of fall days reached AQI 101+ in 2019–2025.
Fall's median AQI of 46 is in line with Tallahassee's whole-year median of 49, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median Fall AQI across every EPA metro area (296,275 metro-days, 2019–2025) is 40, so Tallahassee runs above the national Fall norm; 0.2% of its Fall days topped AQI 100 versus 1.5% nationally (below average).
Within the season, September is the cleanest month (median AQI 46, 0.0% of days above 100) and October the worst (median 45, 0.5% above 100).
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Tallahassee
The latest EPA AirNow observation puts Tallahassee's AQI at 53 (PM2.5). The figures above are multi-year season statistics, not today's reading.
View current Tallahassee air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Tallahassee, 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.