Metro area air quality · 2025

Bennington, VT

Median AQI 37 (Good). 83.6% of monitored days rated Good across this metro's EPA monitoring network.

37
Median AQI
83.6%
Good-air days
0
Unhealthy days
75%
Cleaner than US metros

Bennington, VT posted a 2025 median AQI of 37 (Good) with 83.6% Good days

According to the U.S. EPA Air Quality System, the Bennington, VT CBSA recorded a median AQI of 37 across 360 monitored days in 2025, with 83.6% 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 Bennington, VT CBSA's 83.6% Good-day share places it cleaner than 75% of US metros in 2025.
Closest median-AQI peer
Alexandria, LA (73.7% Good, median AQI 37) is the closest nationwide median-AQI peer to Bennington, VT.
2020–2025 Good-day shift
Bennington, VT's Good-day share moved -6.1 points from 2020 to 2025 (median AQI +0).
Median AQI
Median AQI: 37

Aggregated from EPA Air Quality System (2025), 360 monitored days. EPA AQS →

The verdict

Bennington, VT sits in the upper Good-day tercile among EPA CBSA metros on this site (83.6% of 360 monitored days). On the EPA scale the metro runs good, cleaner than most US metros, with a median AQI of 37 and 83.6% of 360 monitored days in the Good band.

37
median AQI · Good
83.6%
days rated Good
75%
cleaner than US metros
122
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
  • Bennington, VT metro's Good-day share fell from 91.0% to 84.1% between the 2024 and 2025 EPA annual releases, a change of -6.9 percentage points.
  • Bennington, VT metro's peak single-day AQI rose from 80 to 122 between the 2024 and 2025 EPA annual releases, a change of +42 points.

Compared against 365 monitored days in 2024 and 358 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

Bennington, VT sits in the upper Good-day tercile among EPA CBSA metros on this site (83.6% of 360 monitored days). Signature read: 83.6% Good-day share (high tercile vs CBSA corpus). Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 37 over 360 measured days in 2025 (Good / Good). The monitored-day split lands at 301 Good (84%), 57 Moderate (16%), and 2 Unhealthy-for-Sensitive-Groups (1%). The 90th-percentile AQI finished at 54; the highest single-day reading hit 122 (USG).

Across 2020–2025, Good-day share shifted -6.1 points and median AQI moved +0 (worsening). No Unhealthy-tier days appear in this annual dataset. Metros with comparable AQI profiles include Alexandria, LA (73.7% good, AQI 37); Athens, TN (78.2% good, AQI 37); Blacksburg-Christiansburg-Radford, VA (94.4% good, AQI 37).

Best and worst city air quality →

Air Quality Summary

Median AQI

37

Good

Good Days

83.6%

301 of 360 days

Max AQI

122

USG

Health Grade

Good

90th pct: 54

AQI Day Breakdown (2025)

Distribution of 360 monitored days across EPA AQI categories.

Good

301

84%

Moderate

57

16%

USG

2

1%

Unhealthy

0

0%

Very Unhealthy

0

0%

Hazardous

0

0%

Health Impact Assessment

Good

The Bennington, VT metro area's air quality is rated Good based on 83.6% 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 Bennington, VT metro compare?

How Bennington, VT compares

Good-day share better than typical
Bennington, VT 83.6%
Alexandria, LA 73.7%
Typical US metro 70.6%
Median AQI better than typical
Bennington, VT 37
Alexandria, LA 37
Typical US metro 41
Unhealthy days / yr better than typical
Bennington, VT 0
Alexandria, LA 0
Typical US metro 1

5-Year Air Quality Trend

Air quality is worsening in the Bennington, VT metro. Highest Good-day share: 2024 (91.0%, 332 of 365 monitored days).

Year Good Moderate Unhealthy Median AQI
2020 330 36 0 37
2021 307 57 0 37
2022 324 41 0 37
2023 290 63 2 38
2024 332 33 0 36
2025 301 57 0 37

Metros with a similar median AQI

CBSA peers nationwide whose annual median AQI sits near Bennington, VT (37).

Alexandria, LA

Median AQI 37 · 73.7% Good-day share

37

Athens, TN

Median AQI 37 · 78.2% Good-day share

37

Blacksburg-Christiansburg-Radford, VA

Median AQI 37 · 94.4% Good-day share

37

Cadillac, MI

Median AQI 37 · 86.0% Good-day share

37

Chambersburg-Waynesboro, PA

Median AQI 37 · 91.5% Good-day share

37

Columbia, MO

Median AQI 37 · 93.2% Good-day share

37

Metros with similar unhealthy-day exposure

A second relationship type: metros whose unhealthy-or-worse day count is closest to Bennington, VT'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 Bennington, VT have? ▼
In 2025, the Bennington, VT metro area recorded 0 unhealthy air days (0 Unhealthy, 0 Very Unhealthy, 0 Hazardous). The maximum AQI reached 122.
What is the air quality in the Bennington, VT metro area? ▼
The Bennington, VT metro area has a median Air Quality Index (AQI) of 37, rated "Good." 83.6% of monitored days (301 out of 360) had good air quality in 2025.
Is air quality in Bennington, VT getting better or worse? ▼
Air quality in the Bennington, VT 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: 2024 at 91.0% (332 of 365 days). Lowest qualifying Good-day share: 2023 at 81.7% (290 of 355 days).
What does AQI 37 mean for health? ▼
An AQI of 37 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 Bennington, VT compare to other metro areas? ▼
The Bennington, VT metro has 83.6% good air days. Similar metros: Alexandria, LA (73.7% good), Athens, TN (78.2% good), Blacksburg-Christiansburg-Radford, VA (94.4% good).
What is the 90th percentile AQI for Bennington, VT? ▼
The 90th percentile AQI for the Bennington, VT metro area is 54, meaning 90% of monitored days had an AQI at or below this level. The maximum AQI recorded was 122 (USG).

Data Sources

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