Metro area air quality · 2025

Montgomery, AL

Median AQI 44 (Good). 63.8% of monitored days rated Good across this metro's EPA monitoring network.

44
Median AQI
63.8%
Good-air days
0
Unhealthy days
32%
Cleaner than US metros

Montgomery, AL posted a 2025 median AQI of 44 (Good) with 63.8% Good days

According to the U.S. EPA Air Quality System, the Montgomery, AL CBSA recorded a median AQI of 44 across 359 monitored days in 2025, with 63.8% 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 Montgomery, AL CBSA's 63.8% Good-day share places it cleaner than 32% of US metros in 2025.
Closest median-AQI peer
Bartlesville, OK (68.0% Good, median AQI 44) is the closest nationwide median-AQI peer to Montgomery, AL.
2020–2025 Good-day shift
Montgomery, AL's Good-day share moved +44.3 points from 2020 to 2025 (median AQI -14).
Median AQI
Median AQI: 44

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

The verdict

Montgomery, AL lands in the lower Good-day tercile (63.8% Good), a thinner clean-air share than most CBSA peers here. On the EPA scale the metro runs good, more polluted than the median US metro, with a median AQI of 44 and 63.8% of 359 monitored days in the Good band.

44
median AQI · Good
63.8%
days rated Good
32%
cleaner than US metros
90
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
  • Montgomery, AL metro's Good-day share fell from 69.2% to 63.8% between the 2024 and 2025 EPA annual releases, a change of -5.4 percentage points.
  • Montgomery, AL metro's peak single-day AQI fell from 102 to 90 between the 2024 and 2025 EPA annual releases, a change of -12 points.

Compared against 357 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

Montgomery, AL lands in the lower Good-day tercile (63.8% Good), a thinner clean-air share than most CBSA peers here. Signature read: 63.8% Good-day share (low tercile vs CBSA corpus). Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 44 over 359 measured days in 2025 (Good / Moderate). The monitored-day split lands at 229 Good (64%), 130 Moderate (36%), and 0 Unhealthy-for-Sensitive-Groups (0%). The 90th-percentile AQI finished at 57; the highest single-day reading hit 90 (Moderate).

Across 2020–2025, Good-day share shifted +44.3 points and median AQI moved -14 (improving). No Unhealthy-tier days appear in this annual dataset. Metros with comparable AQI profiles include Bartlesville, OK (68.0% good, AQI 44); Berlin, NH-VT (81.5% good, AQI 44); Bloomington, IL (66.0% good, AQI 44).

Health effects of air pollution →

Air Quality Summary

Median AQI

44

Good

Good Days

63.8%

229 of 359 days

Max AQI

90

Moderate

Health Grade

Moderate

90th pct: 57

AQI Day Breakdown (2025)

Distribution of 359 monitored days across EPA AQI categories.

Good

229

64%

Moderate

130

36%

USG

0

0%

Unhealthy

0

0%

Very Unhealthy

0

0%

Hazardous

0

0%

Health Impact Assessment

Moderate

The Montgomery, AL metro area's air quality is rated Moderate based on 63.8% 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 Montgomery, AL metro compare?

How Montgomery, AL compares

Good-day share worse than typical
Montgomery, AL 63.8%
Bartlesville, OK 68.0%
Typical US metro 70.6%
Median AQI worse than typical
Montgomery, AL 44
Bartlesville, OK 44
Typical US metro 41
Unhealthy days / yr better than typical
Montgomery, AL 0
Bartlesville, OK 1
Typical US metro 1

5-Year Air Quality Trend

Air quality is improving in the Montgomery, AL metro. Highest Good-day share: 2022 (74.0%, 270 of 365 monitored days).

Year Good Moderate Unhealthy Median AQI
2020 70 289 0 58
2021 222 132 0 44
2022 270 95 0 41
2023 138 193 0 52
2024 247 110 0 42
2025 229 130 0 44

Metros with a similar median AQI

CBSA peers nationwide whose annual median AQI sits near Montgomery, AL (44).

Bartlesville, OK

Median AQI 44 · 68.0% Good-day share

44

Berlin, NH-VT

Median AQI 44 · 81.5% Good-day share

44

Bloomington, IL

Median AQI 44 · 66.0% Good-day share

44

Boston-Cambridge-Newton, MA-NH

Median AQI 44 · 71.0% Good-day share

44

Bridgeport-Stamford-Norwalk, CT

Median AQI 44 · 64.7% Good-day share

44

Buffalo-Cheektowaga-Niagara Falls, NY

Median AQI 44 · 63.8% Good-day share

44

Metros with similar unhealthy-day exposure

A second relationship type: metros whose unhealthy-or-worse day count is closest to Montgomery, AL'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

How many unhealthy air days does Montgomery, AL have? ▼
In 2025, the Montgomery, AL metro area recorded 0 unhealthy air days (0 Unhealthy, 0 Very Unhealthy, 0 Hazardous). The maximum AQI reached 90.
What is the air quality in the Montgomery, AL metro area? ▼
The Montgomery, AL metro area has a median Air Quality Index (AQI) of 44, rated "Good." 63.8% of monitored days (229 out of 359) had good air quality in 2025.
Is air quality in Montgomery, AL getting better or worse? ▼
Air quality in the Montgomery, AL 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: 2022 at 74.0% (270 of 365 days). Lowest qualifying Good-day share: 2020 at 19.5% (70 of 359 days).
What does AQI 44 mean for health? ▼
An AQI of 44 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 does Montgomery, AL compare to other metro areas? ▼
The Montgomery, AL metro has 63.8% good air days. Similar metros: Bartlesville, OK (68.0% good), Berlin, NH-VT (81.5% good), Bloomington, IL (66.0% good).
What is the 90th percentile AQI for Montgomery, AL? ▼
The 90th percentile AQI for the Montgomery, AL metro area is 57, 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 CBSA dataset for Montgomery, AL, 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, Montgomery, AL · 2020–2025