Syracuse Air Quality in April
Across 2019–2025, Syracuse's April air quality had a median AQI of 41 (Good) over 210 monitored days in the Syracuse, NY area. 0.5% of April days (1 of 210) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 89.0% of days. The cleanest April on record here was 2022 (median AQI 39, 0 days above 100) and the worst was 2023 (median 44, 1 day above 100, peak AQI 119).
- Good: 91.4%
- Moderate: 8.1%
- Unhealthy for Sensitive Groups: 0.5%
- 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 April?
Good on a typical day: median AQI 41 across 2019–2025, with 0.5% of April days above AQI 100. Ground-level ozone is the main driver.
- ✓91.4% of April days were Good (AQI 0–50), 8.1% Moderate (51–100).
- ✓1 day of 210 reached AQI 101+; the April peak was 119.
- ✓Best April: 2022; worst April: 2023.
Frequently asked questions
What is the air quality like in Syracuse in April?▾
Across 2019–2025, the median daily AQI in Syracuse in April was 41 (Good). 91.4% of days were Good, 8.1% Moderate, and 0.5% reached Unhealthy for Sensitive Groups or worse, based on 210 monitored days in EPA's Air Quality System.
Is April a good time for outdoor exercise in Syracuse?▾
A typical April day in Syracuse sits in the Good range (median AQI 41), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of April days reached AQI 101+ in 2019–2025.
Which pollutant causes Syracuse's April air quality problems?▾
Ground-level ozone set the daily AQI on 89.0% of April days in Syracuse. The highest April AQI recorded in 2019–2025 was 119 (Unhealthy for Sensitive Groups), in 2023.
Syracuse April air quality, year by year
Syracuse April air quality by year (Syracuse, NY, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019 | 30 | 43 | 0 | 53 | O3 |
| 2020 | 30 | 41 | 0 | 51 | O3 |
| 2021 | 30 | 43 | 0 | 74 | O3 |
| 2022cleanest | 30 | 39 | 0 | 50 | O3 |
| 2023worst | 30 | 44 | 1 | 119 | O3 |
| 2024 | 30 | 39 | 0 | 54 | O3 |
| 2025 | 30 | 41 | 0 | 67 | O3 |
What April air means in Syracuse
A typical April day in Syracuse sits in the Good range (median AQI 41), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of April days reached AQI 101+ in 2019–2025.
April's median AQI of 41 is in line with Syracuse's whole-year median of 38, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median April AQI across every EPA metro area (100,677 metro-days, 2019–2025) is 44, so Syracuse runs in line with the national April norm; 0.5% of its April days topped AQI 100 versus 0.7% nationally (about the same).
April is part of Syracuse's spring season (March, April, May); the spring 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.