Metro area air quality · 2025
Minot, ND
Median AQI 36 (Good). 79.4% of monitored days rated Good across this metro's EPA monitoring network.
- 36
- Median AQI
- 79.4%
- Good-air days
- 5
- Unhealthy days
- 66%
- Cleaner than US metros
Minot, ND posted a 2025 median AQI of 36 (Good) with 79.4% Good days
According to the U.S. EPA Air Quality System, the Minot, ND CBSA recorded a median AQI of 36 across 364 monitored days in 2025, with 79.4% rated Good and 5 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 Minot, ND CBSA's 79.4% Good-day share places it cleaner than 66% of US metros in 2025.
- Closest median-AQI peer
- Atlantic City-Hammonton, NJ (82.2% Good, median AQI 36) is the closest nationwide median-AQI peer to Minot, ND.
- 2020–2025 Good-day shift
- Minot, ND's Good-day share moved -12.8 points from 2020 to 2025 (median AQI +1).
- Median AQI
- Median AQI: 36
Aggregated from EPA Air Quality System (2025), 364 monitored days. EPA AQS →
The verdict
The Minot, ND metro runs good on the EPA scale, cleaner than the median US metro, a median AQI of 36 with 79.4% of 364 monitored days in the Good band.
- 36
- median AQI · Good
- 79.4%
- days rated Good
- 66%
- cleaner than US metros
- 283
- worst single reading
5 days reached Unhealthy or worse across the metro's monitors in 2025.
Annual release change
What changed in the 2025 EPA annual release
- Minot, ND metro's peak single-day AQI rose from 152 to 283 between the 2024 and 2025 EPA annual releases, a change of +131 points.
- Minot, ND metro's Unhealthy-category days rose from 2 to 4 between the 2024 and 2025 EPA annual releases, a change of +2 days.
- Minot, ND metro's Good-day share fell from 83.0% to 81.2% between the 2024 and 2025 EPA annual releases, a change of -1.8 percentage points.
Insights: Minot, ND metro. Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 36 over 364 measured days in 2025, which corresponds to a Good band and a Good metro-wide health grade. The monitored-day split lands at 289 Good days (79%), 63 Moderate (17%), and 7 Unhealthy-for-Sensitive-Groups (2%). The 90th-percentile AQI finished at 60 while the highest single-day reading hit 283 (Very Unhealthy). Metro residents averaged roughly 23.8 clean-air days per 30-day window across the reporting year.
Across the 2020–2025 trend window, the share of monitored days rated Good shifted by -12.8 points and the median AQI moved +1 points, which classifies the multi-year trajectory as worsening. The annual record contains 5 days at Unhealthy or worse. On those days, the EPA recommends that sensitive groups limit prolonged outdoor exertion. Metros with comparable AQI profiles include Atlantic City-Hammonton, NJ (82.2% good, AQI 36); Barnstable Town, MA (93.7% good, AQI 36); Bemidji, MN (79.1% good, AQI 36).
Air Quality Summary
Median AQI
36
Good
Good Days
79.4%
289 of 364 days
Max AQI
283
Very Unhealthy
Health Grade
Good
90th pct: 60
AQI Day Breakdown (2025)
Distribution of 364 monitored days across EPA AQI categories.
Good
289
79%
Moderate
63
17%
USG
7
2%
Unhealthy
4
1%
Very Unhealthy
1
0%
Hazardous
0
0%
Health Impact Assessment
The Minot, ND metro area's air quality is rated Good based on 79.4% good air days. There were 5 unhealthy days in 2025 when outdoor activity should be limited.
Air quality reached unhealthy levels on 5 days in 2025 (4 Unhealthy, 1 Very Unhealthy). Sensitive groups, including people with asthma, COPD, cardiovascular conditions, children, and adults over 65, should review the daily breakdown and follow local advisories.
Sensitive group advisory
People with asthma, COPD, heart disease, children, pregnant women, and adults 65+ should follow EPA AQI alerts daily and limit outdoor exertion when AQI exceeds 100. Real-time conditions: airnow.gov.
How does the Minot, ND metro compare?
How Minot, ND compares
5-Year Air Quality Trend
Air quality is worsening in the Minot, ND metro. Highest Good-day share: 2020 (94.0%, 344 of 366 monitored days).
| Year | Good | Moderate | Unhealthy | Median AQI | Max AQI |
|---|---|---|---|---|---|
| 2020 | 344 | 22 | 0 | 35 | 73 |
| 2021 | 284 | 62 | 4 | 37 | 173 |
| 2022 | 315 | 44 | 0 | 37 | 79 |
| 2023 | 244 | 101 | 6 | 42 | 278 |
| 2024 | 298 | 59 | 2 | 37 | 152 |
| 2025 | 289 | 63 | 4 | 36 | 283 |
Metros with a similar median AQI
CBSA peers nationwide whose annual median AQI sits near Minot, ND (36).
Atlantic City-Hammonton, NJ
Median AQI 36 · 82.2% Good-day share
Barnstable Town, MA
Median AQI 36 · 93.7% Good-day share
Bemidji, MN
Median AQI 36 · 79.1% Good-day share
Claremont-Lebanon, NH-VT
Median AQI 36 · 83.6% Good-day share
Crestview-Fort Walton Beach-Destin, FL
Median AQI 36 · 93.9% Good-day share
East Stroudsburg, PA
Median AQI 36 · 88.3% Good-day share
Metros with similar unhealthy-day exposure
A second relationship type: metros whose unhealthy-or-worse day count is closest to Minot, ND's 5 (independent of median AQI).
Dallas-Fort Worth-Arlington, TX
5 unhealthy-or-worse days · median AQI 59
Eau Claire, WI
5 unhealthy-or-worse days · median AQI 38
Hobbs, NM
5 unhealthy-or-worse days · median AQI 44
Mankato-North Mankato, MN
5 unhealthy-or-worse days · median AQI 42
Tucson, AZ
5 unhealthy-or-worse days · median AQI 54
Appleton, WI
6 unhealthy-or-worse days · median AQI 38
More Air Quality Data
Explore EPA air quality rankings and guides across U.S. metros and counties.
Cleanest Metro Areas
U.S. metros ranked by their share of Good air-quality days.
Worst Air Quality
Counties and metros with the most unhealthy air days.
All Metro Areas
Annual AQI by CBSA for every monitored U.S. metro area.
Best and Worst City Air
What drives urban air quality and how metro areas compare.
Air Quality Guides
Frequently Asked Questions
What is the air quality in the Minot, ND metro area? ▼
How many unhealthy air days does Minot, ND have? ▼
Is air quality in Minot, ND getting better or worse? ▼
What does AQI 36 mean for health? ▼
What is the 90th percentile AQI for Minot, ND? ▼
How does Minot, ND compare to other metro areas? ▼
Data Sources
Primary Source: U.S. Environmental Protection Agency (EPA), Air Quality System (AQS), Annual AQI by CBSA dataset, 2020–2025. 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 files (metro-level) · 2020–2025
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Every figure on PlainAirData is rendered directly from EPA AQS air-quality monitoring data, no number is typed in by an editor. This page draws directly on EPA AQS air-quality monitoring data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.