Median AQI
33
Good
New York · County air quality · 2025
Wayne County, New York
Median AQI 33 (Good). 95.8% of monitored days rated Good, direct from EPA Air Quality System stations.
- 33
- Median AQI
- 95.8%
- Good-air days
- 0
- Unhealthy days
- 94%
- Cleaner than US counties
Wayne County's 2025 annual median AQI is 33 (Good), with 95.8% Good days
According to the U.S. EPA Air Quality System, Wayne County, New York posted a 2025 median AQI of 33 (Good) across 354 monitored days, with 95.8% rated Good and 0 unhealthy or worse. This is an annual comparison, not today's advisory.
Data source EPA Air Quality System (AQS)
- Cleaner than US
- Wayne County's 95.8% Good-day share places it cleaner than 94% of US counties in 2025.
- Closest median-AQI peer
- Apache County (86.2% Good, median AQI 33) is the closest nationwide median-AQI peer to Wayne County.
- 2020–2025 trend
- Wayne County's floor-qualifying Good-day share is stable from 2020 to 2025 (93.3% → 95.8%).
- Median AQI
- Median AQI: 33
The verdict
According to EPA Air Quality System monitoring data, Wayne County's air is good on balance, among the cleanest 10% of US counties, a median AQI of 33 with 95.8% of 354 monitored days in the Good band, driven mainly by Ozone.
- 33
- median AQI · Good
- 95.8%
- days rated Good
- Ozone
- main pollutant
- 94%
- cleaner than US counties
Not one day crossed into the Unhealthy tier; the worst single reading was AQI 90.
Data updated August 2026
- Good · 339 d · 95.8%
- Moderate · 15 d · 4.2%
How did Wayne County's air break down in 2025?
Across 354 monitored days, 339 fell in the Good band (AQI 0–50) and 0 reached Unhealthy or worse. The worst single day peaked at AQI 90 (Moderate).
EPA AQS →Air quality data from EPA Air Quality System (2025). 354 days monitored. Median AQI: 33 (Good).
Insights: Wayne County, New York. EPA monitors recorded a median Air Quality Index of 33 across 354 measured days in 2025, earning a Good classification and a Excellent health grade. Of those days, 339 (96%) fell in the Good band (AQI 0–50), 15 (4%) registered Moderate readings, and 0 (0%) reached Unhealthy for Sensitive Groups. The 90th-percentile AQI settled at 45, while the worst single-day peak hit 90 (Moderate). Residents averaged about 28.7 clean-air days per 30-day window during the monitoring year.
The full pollutant mix ranks as Ozone (354 days). Across the 2020–2025 trend window, the share of monitored days rated Good shifted by +2.5 points (measured against 327 monitored days in 2020 and 354 in 2025, so raw day counts are not comparable) and the median AQI moved -1 points, placing the multi-year trajectory at stable. The worst single reading over the 2020–2025 window was AQI 90, moderate but never Unhealthy. Nearby counties show comparable readings: Albany (68.5% good, AQI 39); Bronx (59.2% good, AQI 45); Chautauqua (89.0% good, AQI 36); Dutchess (94.0% good, AQI 34); Erie (63.8% good, AQI 44); Essex (83.8% good, AQI 41).
Air Quality Summary
Good Days
95.8%
339 of 354 monitored days
20.8pp vs 75% target
Max AQI Recorded
90
Moderate
Health Grade
Excellent
90th-pct AQI 45
Wayne County, Good days share 95.8%
National avg
Share of monitored days at AQI 0-50 (Good band).
Wayne County, Unhealthy-or-worse share 0.0%
National avg
Share of monitored days above AQI 150 (Unhealthy or worse). Bar maxes at 10% (worst-county ceiling).
AQI Day Breakdown (2025)
Distribution of 354 monitored days across EPA AQI categories.
Good
339
96%
Moderate
15
4%
USG
0
0%
Unhealthy
0
0%
Very Unhealthy
0
0%
Hazardous
0
0%
Pollutant Breakdown
Days where each pollutant was the primary driver of AQI readings in Wayne County.
- Ozone · 354 days · 100.0%
Health Impact Assessment
Excellent
Wayne County's air quality is rated Excellent based on 95.8% good air days. No unhealthy air days were recorded in 2025.
Air quality was acceptable on 95.8% of monitored days in 2025, with a median AQI of 33. Unusually sensitive people can check real-time conditions at AirNow.gov during high-pollution events.
The dominant pollutant is Ozone, driving AQI on 354 of 354 monitored days.
5-Year Air Quality Trend
Air quality is stable in Wayne County. Highest Good-day share: 2022 (97.1%, 333 of 343 monitored days).
| Year | Good | Moderate | USG | Unhealthy | Median AQI | Max AQI |
|---|---|---|---|---|---|---|
| 2020 | 305 | 22 | 0 | 0 | 34 | 80 |
| 2021 | 333 | 21 | 0 | 0 | 33 | 100 |
| 2022 | 333 | 9 | 1 | 0 | 33 | 101 |
| 2023 | 328 | 17 | 3 | 0 | 33 | 112 |
| 2024 | 339 | 15 | 0 | 0 | 33 | 87 |
| 2025 | 339 | 15 | 0 | 0 | 33 | 90 |
How does Wayne County compare?
How Wayne County compares
Good-day share better than typical
Wayne County 95.8%
Apache County, Arizona 86.2%
Typical US county 76.0%
Median AQI better than typical
Wayne County 33
Apache County, Arizona 33
Typical US county 39
Unhealthy days / yr better than typical
Wayne County 0
Apache County, Arizona 0
Typical US county 1
Counties with a similar median AQI
Nationwide peers within about the same annual median AQI as Wayne County (33), not geographic neighbors.
Apache County, Arizona
Median AQI 33 · 86.2% Good-day share
Ascension County, Louisiana
Median AQI 33 · 95.6% Good-day share
Carlton County, Minnesota
Median AQI 33 · 82.8% Good-day share
Clark County, Illinois
Median AQI 33 · 93.8% Good-day share
Clark County, Washington
Median AQI 33 · 82.7% Good-day share
Clay County, Alabama
Median AQI 33 · 81.1% Good-day share
Same primary pollutant: Ozone
Ozone led the AQI on the most monitored days here. These peers share that driver and the closest Good-day share (a second relationship type beyond median-AQI neighbors).
Person County, North Carolina
95.8% Good-day share · median AQI 36
Brown County, Indiana
95.9% Good-day share · median AQI 34
Dukes County, Massachusetts
95.9% Good-day share · median AQI 35
Prince William County, Virginia
95.6% Good-day share · median AQI 35
Polk County, Florida
95.5% Good-day share · median AQI 34
Effingham County, Illinois
95.5% Good-day share · median AQI 35
New York counties on the map
Geographic containment only, other monitored counties in New York, independent of AQI or pollutant match.
What Wayne County's air means for you
The air here stays in the breathable range year-round, with Ozone the main thing to watch.
- Sensitive groups (asthma, heart conditions, children, older adults) should check the AQI on high-Ozone days, the guide explains what a median of 33 means for exposure. Health guidance
- See how Wayne County ranks against every monitored U.S. county on Good-day share. County rankings
- Compare Wayne County with its New York neighbours before drawing a conclusion about the region. All of New York
Based on 354 EPA-monitored days in 2025; figures reflect only days the monitors reported. Source: EPA Air Quality System annual summaries.
Keep exploring the annual AQI record
Air-quality reading list
Frequently Asked Questions
What is the air quality in Wayne County, New York? ▼
Wayne County has a median Air Quality Index (AQI) of 33, rated "Good." 95.8% of monitored days (339 out of 354) had good air quality in 2025.
What is the main pollutant in Wayne County? ▼
The primary pollutant in Wayne County is Ozone (O3), which was the main AQI driver on 354 days (100% of monitored days). Can trigger asthma, reduce lung function, and cause chest pain.
How many unhealthy air days does Wayne County have? ▼
In 2025, Wayne County recorded 0 unhealthy air days (0 Unhealthy, 0 Very Unhealthy, 0 Hazardous). The maximum AQI reached 90.
Is the air quality in Wayne County getting better or worse? ▼
Air quality in Wayne County is stable across floor-qualifying years (2020-2025); years with fewer than 100 monitored days are excluded from that direction. Highest qualifying Good-day share: 2022 at 97.1% (333 of 343 days). Lowest qualifying Good-day share: 2020 at 93.3% (305 of 327 days).
What does AQI 33 mean for health? ▼
Wayne County's median AQI of 33 falls in the "Good" category. See the AQI category guide for what each range means for health.
How does Wayne County compare to other counties in New York? ▼
Wayne County has 95.8% good air days. Nearby counties in New York: Albany (68.5% good), Bronx (59.2% good), Chautauqua (89.0% good), Dutchess (94.0% good), Erie (63.8% good), Essex (83.8% good).
What is the 90th percentile AQI in Wayne County? ▼
The 90th percentile AQI for Wayne County is 45, meaning 90% of monitored days had an AQI at or below this level. The maximum AQI recorded was 90 (Moderate).
Data Sources
Primary Source: U.S. Environmental Protection Agency (EPA), Air Quality System (AQS), Annual AQI by County dataset, 2020–2025 (aqs.epa.gov). For current conditions (not shown here — this page is historical annual data), see EPA AirNow (airnow.gov). See our methodology for how AQI, median, and coverage figures are computed.
Informational only, not professional advice. Data from EPA AQS. See our disclaimer. Spotted a figure that looks wrong? Report a correction.
Source: U.S. EPA Air Quality System (AQS) Annual AQI by county summary files for Wayne County, New York · 2020–2025
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Every figure on PlainAirData is rendered directly from EPA AQS air-quality monitoring data, no number is typed in by an editor. This page draws directly on EPA AQS air-quality monitoring data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.