Yonkers Air Quality in 2020
In 2020, Yonkers's air quality (New York-Newark-Jersey City, NY-NJ-PA area) had a median daily AQI of 54 (Moderate) across 366 monitored days. 11 days (3.0%) reached Unhealthy for Sensitive Groups or worse, 131 were Good, and the year's peak AQI was 140 (Unhealthy for Sensitive Groups). Fine particulate matter (PM2.5) set the daily AQI on 240 of those days. The cleanest month of 2020 was April (median AQI 45, 0 days above 100) and the worst was July (median 80, 6 days above 100, peak 140).
- Good: 35.8%
- Moderate: 61.2%
- Unhealthy for Sensitive Groups: 3.0%
- Unhealthy or worse: 0.0%
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How was Yonkers's air quality in 2020?
Moderate on a typical day: median AQI 54, with 11 days above AQI 100 out of 366 monitored — the 1st cleanest of 7 years on record for the area.
- ✓Peak AQI in 2020: 140 (Unhealthy for Sensitive Groups).
- ✓Fine particulate matter (PM2.5) was the main pollutant on 240 days.
- ✓Cleanest month: April; worst: July.
Frequently asked questions
What was the average AQI in Yonkers in 2020?▾
EPA's Air Quality System puts Yonkers's (New York-Newark-Jersey City, NY-NJ-PA) median daily AQI for 2020 at 54, which is Moderate. 11 days were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 140.
Which month had the worst air quality in Yonkers in 2020?▾
The cleanest month of 2020 was April (median AQI 45, 0 days above 100) and the worst was July (median 80, 6 days above 100, peak 140).
Was 2020 a good or bad year for Yonkers's air?▾
Among the 7 years EPA has published for the area (2019–2025), 2020 ranks 1st cleanest by days above AQI 100 — the best year on record here. 2020's median of 54 is in line with the area's typical annual median of 54.
Yonkers month by month in 2020
Yonkers air quality month by month, 2020 (New York-Newark-Jersey City, NY-NJ-PA, EPA AQS daily AQI)
| Month | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| January | 31 | 55 | 0 | 88 | PM2.5 |
| February | 29 | 57 | 0 | 74 | PM2.5 |
| March | 31 | 47 | 0 | 67 | PM2.5 |
| Aprilcleanest | 30 | 45 | 0 | 57 | O3 |
| May | 31 | 46 | 0 | 64 | O3 |
| June | 30 | 60 | 2 | 112 | O3 |
| Julyworst | 31 | 80 | 6 | 140 | O3 |
| August | 31 | 64 | 2 | 119 | O3 |
| September | 30 | 53 | 0 | 80 | PM2.5 |
| October | 31 | 53 | 0 | 80 | PM2.5 |
| November | 30 | 55 | 0 | 99 | PM2.5 |
| December | 31 | 55 | 1 | 127 | PM2.5 |
How 2020 compares
Among the 7 years EPA has published for the area (2019–2025), 2020 ranks 1st cleanest by days above AQI 100 — the best year on record here.
2020's median of 54 is in line with the area's typical annual median of 54.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Yonkers
The latest EPA AirNow observation puts Yonkers's AQI at 32 (PM2.5). The figures above are multi-year annual statistics, not today's reading.
View current Yonkers air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (New York-Newark-Jersey City, NY-NJ-PA), 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.