Syracuse Air Quality in October
Across 2019–2025, Syracuse's October air quality had a median AQI of 31 (Good) over 217 monitored days in the Syracuse, NY area. 0.0% of October days (0 of 217) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 67.3% of days. The cleanest October on record here was 2023 (median AQI 28, 0 days above 100) and the worst was 2022 (median 34, 0 days above 100, peak AQI 46).
- Good: 96.3%
- Moderate: 3.7%
- 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 October?
Good on a typical day: median AQI 31 across 2019–2025, with 0.0% of October days above AQI 100. Ground-level ozone is the main driver.
- ✓96.3% of October days were Good (AQI 0–50), 3.7% Moderate (51–100).
- ✓0 days of 217 reached AQI 101+; the October peak was 64.
- ✓Best October: 2023; worst October: 2022.
Frequently asked questions
What is the air quality like in Syracuse in October?▾
Across 2019–2025, the median daily AQI in Syracuse in October was 31 (Good). 96.3% of days were Good, 3.7% Moderate, and 0.0% reached Unhealthy for Sensitive Groups or worse, based on 217 monitored days in EPA's Air Quality System.
Is October a good time for outdoor exercise in Syracuse?▾
A typical October 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 October days reached AQI 101+ in 2019–2025.
Which pollutant causes Syracuse's October air quality problems?▾
Ground-level ozone set the daily AQI on 67.3% of October days in Syracuse. The highest October AQI recorded in 2019–2025 was 64 (Moderate), in 2022.
Syracuse October air quality, year by year
Syracuse October air quality by year (Syracuse, NY, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 31 | 31 | 0 | 55 | O3 |
| 2020 | 31 | 31 | 0 | 52 | O3 |
| 2021 | 31 | 32 | 0 | 51 | PM2.5 |
| 2022worst | 31 | 34 | 0 | 46 | O3 |
| 2023cleanest | 31 | 28 | 0 | 53 | O3 |
| 2024 | 31 | 31 | 0 | 54 | O3 |
| 2025 | 31 | 29 | 0 | 64 | O3 |
What October air means in Syracuse
A typical October 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 October days reached AQI 101+ in 2019–2025.
October'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 October AQI across every EPA metro area (102,872 metro-days, 2019–2025) is 38, so Syracuse runs below the national October norm; 0.0% of its October days topped AQI 100 versus 1.3% nationally (below average).
October is part of Syracuse's fall season (September, October, November); the fall page pools all three months.
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 month 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.