Metro area air quality · 2025

Dyersburg, TN

Median AQI 34 (Good). 76.9% of monitored days rated Good across this metro's EPA monitoring network.

34
Median AQI
76.9%
Good-air days
0
Unhealthy days
60%
Cleaner than US metros

Dyersburg, TN posted a 2025 median AQI of 34 (Good) with 76.9% Good days

According to the U.S. EPA Air Quality System, the Dyersburg, TN CBSA recorded a median AQI of 34 across 359 monitored days in 2025, with 76.9% rated Good and 0 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 Dyersburg, TN CBSA's 76.9% Good-day share places it cleaner than 60% of US metros in 2025.
Closest median-AQI peer
Arkadelphia, AR (96.7% Good, median AQI 34) is the closest nationwide median-AQI peer to Dyersburg, TN.
2020–2025 Good-day shift
Dyersburg, TN's Good-day share moved -6.8 points from 2020 to 2025 (median AQI +3).
Median AQI
Median AQI: 34

Aggregated from EPA Air Quality System (2025), 359 monitored days. EPA AQS →

The verdict

Dyersburg, TN's median AQI 34 is in the lower (cleaner) CBSA tercile on this site. On the EPA scale the metro runs good, cleaner than the median US metro, with a median AQI of 34 and 76.9% of 359 monitored days in the Good band.

34
median AQI · Good
76.9%
days rated Good
60%
cleaner than US metros
72
worst single reading

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

Annual release change

What changed in the 2025 EPA annual release

2024 → 2025
  • Dyersburg, TN metro's Good-day share fell from 82.4% to 76.9% between the 2024 and 2025 EPA annual releases, a change of -5.5 percentage points.
  • Dyersburg, TN metro's peak single-day AQI fell from 92 to 72 between the 2024 and 2025 EPA annual releases, a change of -20 points.
  • Dyersburg, TN metro's median AQI rose from 31 to 34 between the 2024 and 2025 EPA annual releases, a change of +3 points.

Compared against 347 monitored days in 2024 and 359 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

Dyersburg, TN's median AQI 34 is in the lower (cleaner) CBSA tercile on this site. Signature read: median AQI 34 (low tercile vs CBSA corpus). Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 34 over 359 measured days in 2025 (Good / Good). The monitored-day split lands at 276 Good (77%), 83 Moderate (23%), and 0 Unhealthy-for-Sensitive-Groups (0%). The 90th-percentile AQI finished at 55; the highest single-day reading hit 72 (Moderate).

Across 2020–2025, Good-day share shifted -6.8 points and median AQI moved +3 (worsening). No Unhealthy-tier days appear in this annual dataset. Metros with comparable AQI profiles include Arkadelphia, AR (96.7% good, AQI 34); Augusta-Waterville, ME (85.2% good, AQI 34); Beatrice, NE (75.8% good, AQI 34).

Understanding AQI →

Air Quality Summary

Median AQI

34

Good

Good Days

76.9%

276 of 359 days

Max AQI

72

Moderate

Health Grade

Good

90th pct: 55

AQI Day Breakdown (2025)

Distribution of 359 monitored days across EPA AQI categories.

Good

276

77%

Moderate

83

23%

USG

0

0%

Unhealthy

0

0%

Very Unhealthy

0

0%

Hazardous

0

0%

Health Impact Assessment

Good

The Dyersburg, TN metro area's air quality is rated Good based on 76.9% 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 Dyersburg, TN metro compare?

How Dyersburg, TN compares

Good-day share better than typical
Dyersburg, TN 76.9%
Arkadelphia, AR 96.7%
Typical US metro 70.6%
Median AQI better than typical
Dyersburg, TN 34
Arkadelphia, AR 34
Typical US metro 41
Unhealthy days / yr better than typical
Dyersburg, TN 0
Arkadelphia, AR 0
Typical US metro 1

5-Year Air Quality Trend

Air quality is worsening in the Dyersburg, TN metro. Highest Good-day share: 2020 (83.7%, 293 of 350 monitored days).

Year Good Moderate Unhealthy Median AQI
2020 293 57 0 31
2021 242 107 0 39
2022 258 97 0 39
2023 267 93 0 39
2024 286 61 0 31
2025 276 83 0 34

Metros with a similar median AQI

CBSA peers nationwide whose annual median AQI sits near Dyersburg, TN (34).

Arkadelphia, AR

Median AQI 34 · 96.7% Good-day share

34

Augusta-Waterville, ME

Median AQI 34 · 85.2% Good-day share

34

Beatrice, NE

Median AQI 34 · 75.8% Good-day share

34

Erie, PA

Median AQI 34 · 76.7% Good-day share

34

Grand Island, NE

Median AQI 34 · 82.5% Good-day share

34

Lakeland-Winter Haven, FL

Median AQI 34 · 95.5% Good-day share

34

Metros with similar unhealthy-day exposure

A second relationship type: metros whose unhealthy-or-worse day count is closest to Dyersburg, TN's 0 (independent of median AQI).

Aberdeen, SD

0 unhealthy-or-worse days · median AQI 27

27

Aberdeen, WA

0 unhealthy-or-worse days · median AQI 22

22

Adrian, MI

0 unhealthy-or-worse days · median AQI 41

41

Akron, OH

0 unhealthy-or-worse days · median AQI 45

45

Albany, GA

0 unhealthy-or-worse days · median AQI 46

46

Albany, OR

0 unhealthy-or-worse days · median AQI 27

27

Frequently Asked Questions

What does AQI 34 mean for health? ▼
An AQI of 34 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 Dyersburg, TN have? ▼
In 2025, the Dyersburg, TN metro area recorded 0 unhealthy air days (0 Unhealthy, 0 Very Unhealthy, 0 Hazardous). The maximum AQI reached 72.
What is the air quality in the Dyersburg, TN metro area? ▼
The Dyersburg, TN metro area has a median Air Quality Index (AQI) of 34, rated "Good." 76.9% of monitored days (276 out of 359) had good air quality in 2025.
Is air quality in Dyersburg, TN getting better or worse? ▼
Air quality in the Dyersburg, TN metro is worsening across floor-qualifying years (2020-2025); years with fewer than 100 monitored days are excluded from that direction. Highest qualifying Good-day share: 2020 at 83.7% (293 of 350 days). Lowest qualifying Good-day share: 2021 at 69.3% (242 of 349 days).
How does Dyersburg, TN compare to other metro areas? ▼
The Dyersburg, TN metro has 76.9% good air days. Similar metros: Arkadelphia, AR (96.7% good), Augusta-Waterville, ME (85.2% good), Beatrice, NE (75.8% good).
What is the 90th percentile AQI for Dyersburg, TN? ▼
The 90th percentile AQI for the Dyersburg, TN metro area is 55, meaning 90% of monitored days had an AQI at or below this level. The maximum AQI recorded was 72 (Moderate).

Data Sources

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