Rochester, NY Air Quality
Current AQI unavailable for Rochester
EPA AirNow was not reporting a monitored air quality observation for Rochester, New York when this page was last updated, so we have no current AQI to show. We do not estimate or model a value in its place.
This usually means no regulatory monitor in the Rochester reporting area submitted data for the current hour, or the nearest monitor is too far away to represent local conditions.
Data source: EPA AirNow reporting area feed
Last checked: October 26, 2026 at 5:41 PM UTC
Get a live reading for Rochester
AirNow's own map can show sensor-level readings near Rochester, including data from monitors we do not aggregate here.
View Rochester on AirNow.govRochester air quality record, 2019–2025
Today's live feed is out, but the measured record is not. EPA's Air Quality System publishes one daily AQI value for the Rochester, NY area — the highest value any regulatory monitor there reported that day. In 2025 monitors reported on 365 days, with a median AQI of 39, a 90th-percentile AQI of 61 and a worst day of 135. 7 days reached AQI 101 or higher, and O3 set the daily AQI on 224 days.
Across 2019–2025, Rochester's air worsened: the area's median AQI held near 42 and days above AQI 100 rose from about 0 to 6 per year (comparing the earlier and later halves of the period).
| Year | Days measured | Median AQI | 90th pct AQI | Worst day | Days AQI 101+ | Main pollutant |
|---|---|---|---|---|---|---|
| 2019 | 365 | 42 | 58 | 90 | 0 | PM2.5 |
| 2020 | 366 | 41 | 58 | 81 | 0 | PM2.5 |
| 2021 | 365 | 44 | 61 | 100 | 0 | PM2.5 |
| 2022 | 365 | 42 | 58 | 126 | 2 | PM2.5 |
| 2023 | 365 | 43 | 64 | 176 | 11 | PM2.5 |
| 2024 | 366 | 39 | 57 | 90 | 0 | PM2.5 |
| 2025 | 365 | 39 | 61 | 135 | 7 | O3 |
Source: EPA Air Quality System (AQS) pre-generated Annual AQI by CBSA files, https://aqs.epa.gov/aqsweb/airdata/download_files.html (retrieved 2026-09-07). Area: Rochester, NY (Core Based Statistical Area 40380).
Rochester pollutant detail
Monitored cities in New York
Rochester Air Quality by Month
Median daily AQI for each calendar month, pooled across 2019–2025 for the Rochester, NY area (EPA Air Quality System). Colour is the EPA category of that median. Open a month for its day counts, worst years and main pollutant.
By season
By year
Rochester’s best and worst air quality days on record (2019–2025) →
Each figure is the median of every monitored day in that period, 2019–2025; a year’s median is EPA’s published annual figure. Source: EPA AQS Daily AQI by CBSA, retrieved 2026-09-09.