Metro area air quality · 2025

Ardmore, OK

Median AQI 45 (Good). 67.9% of monitored days rated Good across this metro's EPA monitoring network.

45
Median AQI
67.9%
Good-air days
2
Unhealthy days
40%
Cleaner than US metros

Ardmore, OK posted a 2025 median AQI of 45 (Good) with 67.9% Good days

According to the U.S. EPA Air Quality System, the Ardmore, OK CBSA recorded a median AQI of 45 across 346 monitored days in 2025, with 67.9% rated Good and 2 unhealthy or worse. This is an annual metro comparison, not a live advisory.

Data source EPA Air Quality System (AQS)

Cleaner than US metros
The Ardmore, OK CBSA's 67.9% Good-day share places it cleaner than 40% of US metros in 2025.
Closest median-AQI peer
Akron, OH (61.6% Good, median AQI 45) is the closest nationwide median-AQI peer to Ardmore, OK.
2020–2025 Good-day shift
Ardmore, OK's Good-day share moved +10.7 points from 2020 to 2025 (median AQI -2).
Median AQI
Median AQI: 45

Aggregated from EPA Air Quality System (2025), 346 monitored days. EPA AQS →

The verdict

Ardmore, OK's median AQI 45 is in the upper (dirtier) CBSA tercile on this site. On the EPA scale the metro runs good, more polluted than the median US metro, with a median AQI of 45 and 67.9% of 346 monitored days in the Good band.

45
median AQI · Good
67.9%
days rated Good
40%
cleaner than US metros
169
worst single reading

2 days reached Unhealthy or worse across the metro's monitors in 2025.

Annual release change

What changed in the 2025 EPA annual release

2024 → 2025
  • Ardmore, OK metro's Good-day share rose from 62.2% to 69.1% between the 2024 and 2025 EPA annual releases, a change of +6.9 percentage points.
  • Ardmore, OK metro's peak single-day AQI rose from 143 to 169 between the 2024 and 2025 EPA annual releases, a change of +26 points.
  • Ardmore, OK metro's Unhealthy-category days rose from 0 to 2 between the 2024 and 2025 EPA annual releases, a change of +2 days.
  • Ardmore, OK metro's median AQI fell from 48 to 45 between the 2024 and 2025 EPA annual releases, a change of -3 points.

Compared against 349 monitored days in 2024 and 340 in 2025. These are arithmetic differences between two stored EPA annual summaries, not a cause claim or a live advisory.

National release changes Two-year CSV

Ardmore, OK's median AQI 45 is in the upper (dirtier) CBSA tercile on this site. Signature read: median AQI 45 (high tercile vs CBSA corpus). Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 45 over 346 measured days in 2025 (Good / Moderate). The monitored-day split lands at 235 Good (68%), 103 Moderate (30%), and 6 Unhealthy-for-Sensitive-Groups (2%). The 90th-percentile AQI finished at 74; the highest single-day reading hit 169 (Unhealthy).

Across 2020–2025, Good-day share shifted +10.7 points and median AQI moved -2 (improving). The annual record contains 2 days at Unhealthy or worse. Metros with comparable AQI profiles include Akron, OH (61.6% good, AQI 45); Asheville, NC (69.9% good, AQI 45); Cheyenne, WY (75.1% good, AQI 45).

Health effects of air pollution →

Air Quality Summary

Median AQI

45

Good

Good Days

67.9%

235 of 346 days

Max AQI

169

Unhealthy

Health Grade

Moderate

90th pct: 74

AQI Day Breakdown (2025)

Distribution of 346 monitored days across EPA AQI categories.

Good

235

68%

Moderate

103

30%

USG

6

2%

Unhealthy

2

1%

Very Unhealthy

0

0%

Hazardous

0

0%

Health Impact Assessment

Moderate

The Ardmore, OK metro area's air quality is rated Moderate based on 67.9% good air days. There were 2 unhealthy days in 2025 when outdoor activity should be limited.

Air quality is acceptable most days, but 6 days reached "Unhealthy for Sensitive Groups" and peak AQI reached 169. Sensitive groups should monitor real-time conditions at AirNow.gov.

How does the Ardmore, OK metro compare?

How Ardmore, OK compares

Good-day share worse than typical
Ardmore, OK 67.9%
Akron, OH 61.6%
Typical US metro 70.6%
Median AQI worse than typical
Ardmore, OK 45
Akron, OH 45
Typical US metro 41
Unhealthy days / yr worse than typical
Ardmore, OK 2
Akron, OH 0
Typical US metro 1

5-Year Air Quality Trend

Air quality is improving in the Ardmore, OK metro. Highest Good-day share: 2025 (69.1%, 235 of 340 monitored days).

Year Good Moderate Unhealthy Median AQI
2020 201 143 0 47
2021 196 140 0 49
2022 224 132 1 46
2023 189 138 0 48
2024 217 132 0 48
2025 235 103 2 45

Metros with a similar median AQI

CBSA peers nationwide whose annual median AQI sits near Ardmore, OK (45).

Akron, OH

Median AQI 45 · 61.6% Good-day share

45

Asheville, NC

Median AQI 45 · 69.9% Good-day share

45

Cheyenne, WY

Median AQI 45 · 75.1% Good-day share

45

Clinton, IA

Median AQI 45 · 59.5% Good-day share

45

Fort Dodge, IA

Median AQI 45 · 59.2% Good-day share

45

Gadsden, AL

Median AQI 45 · 61.4% Good-day share

45

Metros with similar unhealthy-day exposure

A second relationship type: metros whose unhealthy-or-worse day count is closest to Ardmore, OK's 2 (independent of median AQI).

Bridgeport-Stamford-Norwalk, CT

2 unhealthy-or-worse days · median AQI 44

44

Chattanooga, TN-GA

2 unhealthy-or-worse days · median AQI 49

49

Cincinnati, OH-KY-IN

2 unhealthy-or-worse days · median AQI 56

56

Columbus, GA-AL

2 unhealthy-or-worse days · median AQI 48

48

Davenport-Moline-Rock Island, IA-IL

2 unhealthy-or-worse days · median AQI 46

46

Grand Rapids-Wyoming, MI

2 unhealthy-or-worse days · median AQI 52

52

Frequently Asked Questions

What does AQI 45 mean for health? ▼
An AQI of 45 is "Good", air quality is satisfactory and poses little or no health risk. This is the best category on the EPA's AQI scale.
How many unhealthy air days does Ardmore, OK have? ▼
In 2025, the Ardmore, OK metro area recorded 2 unhealthy air days (2 Unhealthy, 0 Very Unhealthy, 0 Hazardous). The maximum AQI reached 169.
What is the air quality in the Ardmore, OK metro area? ▼
The Ardmore, OK metro area has a median Air Quality Index (AQI) of 45, rated "Good." 67.9% of monitored days (235 out of 346) had good air quality in 2025.
Is air quality in Ardmore, OK getting better or worse? ▼
Air quality in the Ardmore, OK metro is improving across floor-qualifying years (2020-2025); years with fewer than 100 monitored days are excluded from that direction. Highest qualifying Good-day share: 2025 at 69.1% (235 of 340 days). Lowest qualifying Good-day share: 2023 at 57.8% (189 of 327 days).
How does Ardmore, OK compare to other metro areas? ▼
The Ardmore, OK metro has 67.9% good air days. Similar metros: Akron, OH (61.6% good), Asheville, NC (69.9% good), Cheyenne, WY (75.1% good).
What is the 90th percentile AQI for Ardmore, OK? ▼
The 90th percentile AQI for the Ardmore, OK metro area is 74, meaning 90% of monitored days had an AQI at or below this level. The maximum AQI recorded was 169 (Unhealthy).

Data Sources

Primary Source: U.S. Environmental Protection Agency (EPA), Air Quality System (AQS), Annual AQI by CBSA dataset for Ardmore, OK, 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, Ardmore, OK · 2020–2025