Metro area air quality · 2025

Red Wing, MN

Median AQI 38 (Good). 89.5% of monitored days rated Good across this metro's EPA monitoring network.

38
Median AQI
89.5%
Good-air days
0
Unhealthy days
85%
Cleaner than US metros

Red Wing, MN posted a 2025 median AQI of 38 (Good) with 89.5% Good days

According to the U.S. EPA Air Quality System, the Red Wing, MN CBSA recorded a median AQI of 38 across 239 monitored days in 2025, with 89.5% 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 Red Wing, MN CBSA's 89.5% Good-day share places it cleaner than 85% of US metros in 2025.
Closest median-AQI peer
Appleton, WI (72.3% Good, median AQI 38) is the closest nationwide median-AQI peer to Red Wing, MN.
2020–2025 Good-day shift
Red Wing, MN's Good-day share moved -6.2 points from 2020 to 2025 (median AQI +3).
Median AQI
Median AQI: 38

Aggregated from EPA Air Quality System (2025), 239 monitored days. EPA AQS →

The verdict

Red Wing, MN sits in the upper Good-day tercile among EPA CBSA metros on this site (89.5% of 239 monitored days). On the EPA scale the metro runs good, cleaner than most US metros, with a median AQI of 38 and 89.5% of 239 monitored days in the Good band.

38
median AQI · Good
89.5%
days rated Good
85%
cleaner than US metros
97
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
  • Red Wing, MN metro's Good-day share fell from 93.5% to 89.5% between the 2024 and 2025 EPA annual releases, a change of -4.0 percentage points.
  • Red Wing, MN metro's peak single-day AQI rose from 67 to 97 between the 2024 and 2025 EPA annual releases, a change of +30 points.

Compared against 248 monitored days in 2024 and 239 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

Red Wing, MN sits in the upper Good-day tercile among EPA CBSA metros on this site (89.5% of 239 monitored days). Signature read: 89.5% 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 38 over 239 measured days in 2025 (Good / Good). The monitored-day split lands at 214 Good (90%), 25 Moderate (10%), and 0 Unhealthy-for-Sensitive-Groups (0%). The 90th-percentile AQI finished at 51; the highest single-day reading hit 97 (Moderate).

Across 2020–2025, Good-day share shifted -6.2 points and median AQI moved +3 (worsening). No Unhealthy-tier days appear in this annual dataset. Metros with comparable AQI profiles include Appleton, WI (72.3% good, AQI 38); Billings, MT (86.3% good, AQI 38); Burlington-South Burlington, VT (87.7% good, AQI 38).

Best and worst city air quality →

Air Quality Summary

Median AQI

38

Good

Good Days

89.5%

214 of 239 days

Max AQI

97

Moderate

Health Grade

Good

90th pct: 51

AQI Day Breakdown (2025)

Distribution of 239 monitored days across EPA AQI categories.

Good

214

90%

Moderate

25

10%

USG

0

0%

Unhealthy

0

0%

Very Unhealthy

0

0%

Hazardous

0

0%

Health Impact Assessment

Good

The Red Wing, MN metro area's air quality is rated Good based on 89.5% 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 Red Wing, MN metro compare?

How Red Wing, MN compares

Good-day share better than typical
Red Wing, MN 89.5%
Appleton, WI 72.3%
Typical US metro 70.6%
Median AQI better than typical
Red Wing, MN 38
Appleton, WI 38
Typical US metro 41
Unhealthy days / yr better than typical
Red Wing, MN 0
Appleton, WI 6
Typical US metro 1

5-Year Air Quality Trend

Air quality is worsening in the Red Wing, MN metro. Highest Good-day share: 2020 (95.7%, 201 of 210 monitored days).

Year Good Moderate Unhealthy Median AQI
2020 201 9 0 35
2021 193 23 0 39
2022 210 10 0 38
2023 198 35 0 43
2024 232 16 0 38
2025 214 25 0 38

Metros with a similar median AQI

CBSA peers nationwide whose annual median AQI sits near Red Wing, MN (38).

Appleton, WI

Median AQI 38 · 72.3% Good-day share

38

Billings, MT

Median AQI 38 · 86.3% Good-day share

38

Burlington-South Burlington, VT

Median AQI 38 · 87.7% Good-day share

38

Charlottesville, VA

Median AQI 38 · 81.0% Good-day share

38

Corning, NY

Median AQI 38 · 83.3% Good-day share

38

Dickinson, ND

Median AQI 38 · 82.7% Good-day share

38

Metros with similar unhealthy-day exposure

A second relationship type: metros whose unhealthy-or-worse day count is closest to Red Wing, MN'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 Red Wing, MN have? ▼
In 2025, the Red Wing, MN metro area recorded 0 unhealthy air days (0 Unhealthy, 0 Very Unhealthy, 0 Hazardous). The maximum AQI reached 97.
What is the air quality in the Red Wing, MN metro area? ▼
The Red Wing, MN metro area has a median Air Quality Index (AQI) of 38, rated "Good." 89.5% of monitored days (214 out of 239) had good air quality in 2025.
Is air quality in Red Wing, MN getting better or worse? ▼
Air quality in the Red Wing, MN 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 95.7% (201 of 210 days). Lowest qualifying Good-day share: 2023 at 85.0% (198 of 233 days).
What does AQI 38 mean for health? ▼
An AQI of 38 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 Red Wing, MN compare to other metro areas? ▼
The Red Wing, MN metro has 89.5% good air days. Similar metros: Appleton, WI (72.3% good), Billings, MT (86.3% good), Burlington-South Burlington, VT (87.7% good).
What is the 90th percentile AQI for Red Wing, MN? ▼
The 90th percentile AQI for the Red Wing, MN metro area is 51, meaning 90% of monitored days had an AQI at or below this level. The maximum AQI recorded was 97 (Moderate).

Data Sources

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