Syracuse Air Quality in Fall
Across 2019–2025, Syracuse's fall (September–November) air quality had a median AQI of 31 (Good) over 637 monitored days in the Syracuse, NY area. 0.0% of fall days (0 of 637) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 64.4% of days. The cleanest fall on record here was 2024 (median AQI 30, 0 days above 100) and the worst was 2020 (median 33, 0 days above 100, peak AQI 67).
- Good: 91.8%
- Moderate: 8.2%
- Unhealthy for Sensitive Groups: 0.0%
- Unhealthy or worse: 0.0%
Extra Protection for Syracuse Homes
Air quality in Syracuse 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.
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 Syracuse in fall?
Good on a typical day: median AQI 31 across 2019–2025, with 0.0% of fall days above AQI 100. Ground-level ozone is the main driver.
- ✓91.8% of fall days were Good (AQI 0–50), 8.2% Moderate (51–100).
- ✓0 days of 637 reached AQI 101+; the fall peak was 69.
- ✓Cleanest month: October; worst month: September.
Frequently asked questions
What is the air quality like in Syracuse in fall?▾
Across 2019–2025, the median daily AQI in Syracuse in fall was 31 (Good). 91.8% of days were Good, 8.2% Moderate, and 0.0% reached Unhealthy for Sensitive Groups or worse, based on 637 monitored days in EPA's Air Quality System.
Is fall a good time for outdoor exercise in Syracuse?▾
A typical fall day in Syracuse sits in the Good range (median AQI 31), 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 Syracuse's fall air quality problems?▾
Ground-level ozone set the daily AQI on 64.4% of fall days in Syracuse. The highest fall AQI recorded in 2019–2025 was 69 (Moderate), in 2020.
Syracuse fall air quality, year by year
Syracuse fall air quality by year (Syracuse, NY, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 91 | 33 | 0 | 63 | O3 |
| 2020worst | 91 | 33 | 0 | 67 | O3 |
| 2021 | 91 | 32 | 0 | 64 | O3 |
| 2022 | 91 | 32 | 0 | 69 | O3 |
| 2023 | 91 | 31 | 0 | 64 | O3 |
| 2024cleanest | 91 | 30 | 0 | 64 | O3 |
| 2025 | 91 | 31 | 0 | 64 | O3 |
What fall air means in Syracuse
A typical fall day in Syracuse sits in the Good range (median AQI 31), 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 31 is below Syracuse's whole-year median of 38, making it one of the area's cleaner periods. Nationally, the median Fall AQI across every EPA metro area (296,275 metro-days, 2019–2025) is 40, so Syracuse runs below the national Fall norm; 0.0% of its Fall days topped AQI 100 versus 1.5% nationally (below average).
Within the season, October is the cleanest month (median AQI 31, 0.0% of days above 100) and September the worst (median 33, 0.0% above 100).
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Syracuse
The latest EPA AirNow observation puts Syracuse's AQI at 56 (PM2.5). The figures above are multi-year season statistics, not today's reading.
View current Syracuse air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Syracuse, NY), 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.