Metro area air quality · 2025

Cleveland-Elyria, OH

Median AQI 54 (Moderate). 42.6% of monitored days rated Good across this metro's EPA monitoring network.

54
Median AQI
42.6%
Good-air days
0
Unhealthy days
7%
Cleaner than US metros

Aggregated from EPA Air Quality System (2025), 305 monitored days. EPA AQS →

The verdict

The Cleveland-Elyria, OH metro runs moderate on the EPA scale, among the more polluted US metros, a median AQI of 54 with 42.6% of 305 monitored days in the Good band.

54
median AQI · Moderate
42.6%
days rated Good
7%
cleaner than US metros
150
worst single reading

No day crossed into the Unhealthy tier across the metro's monitors in 2025.

Insights: Cleveland-Elyria, OH metro. Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 54 over 305 measured days in 2025, which corresponds to a Moderate band and a Poor metro-wide health grade. The monitored-day split lands at 130 Good days (43%), 168 Moderate (55%), and 7 Unhealthy-for-Sensitive-Groups (2%). The 90th-percentile AQI finished at 84 while the highest single-day reading hit 150 (USG). Metro residents averaged roughly 12.8 clean-air days per 30-day window across the reporting year.

Across the 2020–2025 trend window, good days shifted by -17 and the median AQI moved +0 points, which classifies the multi-year trajectory as stable. The metro avoided any Unhealthy-tier days entirely, an outcome that typically reflects favorable wind patterns, lower industrial density, or effective regional emission controls. Metros with comparable AQI profiles include Baton Rouge, LA (35.0% good, AQI 54); Bishop, CA (40.7% good, AQI 54); Chicago-Naperville-Elgin, IL-IN-WI (34.3% good, AQI 54).

Air Quality Summary

Median AQI

54

Moderate

Good Days

42.6%

130 of 305 days

Max AQI

150

USG

Health Grade

Poor

90th pct: 84

AQI Day Breakdown (2025)

Distribution of 305 monitored days across EPA AQI categories.

Good

130

43%

Moderate

168

55%

USG

7

2%

Unhealthy

0

0%

Very Unhealthy

0

0%

Hazardous

0

0%

Health Impact Assessment

Poor

The Cleveland-Elyria, OH metro area's air quality is rated Poor based on 42.6% good air days. No unhealthy air days were recorded in 2025.

Air quality is generally acceptable. Unusually sensitive people should monitor real-time conditions at AirNow.gov during high-pollution events.

How does the Cleveland-Elyria, OH metro compare?

How Cleveland-Elyria, OH compares

Good-day share worse than US avg
Cleveland-Elyria, OH 42.6%
Baton Rouge, LA 35.0%
US average 71.3%
Median AQI worse than US avg
Cleveland-Elyria, OH 54
Baton Rouge, LA 54
US average 41
Unhealthy days / yr better than US avg
Cleveland-Elyria, OH 0
Baton Rouge, LA 0
US average 1

5-Year Air Quality Trend

Air quality is stable in the Cleveland-Elyria, OH metro. Best year: 2020 (147 good days).

Year Good Moderate Unhealthy Median AQI
2020 147 208 1 54
2021 96 261 0 57
2022 133 224 2 54
2023 115 234 4 57
2024 134 223 0 55
2025 130 168 0 54

Metros with Similar Air Quality

Metro areas across the US with a similar median AQI to Cleveland-Elyria, OH.

Baton Rouge, LA

AQI 54 · 35.0% good

54

Bishop, CA

AQI 54 · 40.7% good

54

Chicago-Naperville-Elgin, IL-IN-WI

AQI 54 · 34.3% good

54

Columbus, OH

AQI 54 · 39.0% good

54

Fort Collins, CO

AQI 54 · 40.1% good

54

Fresno, CA

AQI 54 · 40.1% good

54

More Air Quality Data

Explore EPA air quality rankings and guides across U.S. metros and counties.

Cleanest Metro Areas

U.S. metros ranked by their share of Good air-quality days.

Worst Air Quality

Counties and metros with the most unhealthy air days.

All Metro Areas

Annual AQI by CBSA for every monitored U.S. metro area.

Best and Worst City Air

What drives urban air quality and how metro areas compare.

Air Quality Guides

Frequently Asked Questions

What is the air quality in the Cleveland-Elyria, OH metro area? ▼
The Cleveland-Elyria, OH metro area has a median Air Quality Index (AQI) of 54, rated "Moderate." 42.6% of monitored days (130 out of 305) had good air quality in 2025.
How many unhealthy air days does Cleveland-Elyria, OH have? ▼
In 2025, the Cleveland-Elyria, OH metro area recorded 0 unhealthy air days (0 Unhealthy, 0 Very Unhealthy, 0 Hazardous). The maximum AQI reached 150.
Is air quality in Cleveland-Elyria, OH getting better or worse? ▼
Air quality in the Cleveland-Elyria, OH metro is stable based on 5-year trends (2020-2025). Best year: 2020 with 147 good days. Worst year: 2021 with 96 good days.
What does AQI 54 mean for health? ▼
An AQI of 54 is "Moderate", air quality is acceptable, but some pollutants may pose a moderate health concern for a small number of sensitive individuals.
What is the 90th percentile AQI for Cleveland-Elyria, OH? ▼
The 90th percentile AQI for the Cleveland-Elyria, OH metro area is 84, meaning 90% of monitored days had an AQI at or below this level. The maximum AQI recorded was 150 (USG).
How does Cleveland-Elyria, OH compare to other metro areas? ▼
The Cleveland-Elyria, OH metro has 42.6% good air days. Similar metros: Baton Rouge, LA (35.0% good), Bishop, CA (40.7% good), Chicago-Naperville-Elgin, IL-IN-WI (34.3% good).

Data Sources

Primary Source: U.S. Environmental Protection Agency (EPA), Air Quality System (AQS), Annual AQI by CBSA dataset, 2020–2025. See our methodology for how AQI, median, and coverage figures are computed.

Read our methodology , how this data is sourced, computed, and verified.

Source: U.S. EPA Air Quality System (AQS) Annual AQI by CBSA summary files (metro-level) · 2020–2025

Every figure on PlainAir 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.