Metro area air quality · 2025
Cañon City, CO
Median AQI 25 (Good). 91.1% of monitored days rated Good across this metro's EPA monitoring network.
- 25
- Median AQI
- 91.1%
- Good-air days
- 0
- Unhealthy days
- 85%
- Cleaner than US metros
Aggregated from EPA Air Quality System (2025), 270 monitored days. EPA AQS →
The verdict
The Cañon City, CO metro runs good on the EPA scale, cleaner than most US metros, a median AQI of 25 with 91.1% of 270 monitored days in the Good band.
- 25
- median AQI · Good
- 91.1%
- days rated Good
- 85%
- cleaner than US metros
- 77
- worst single reading
No day crossed into the Unhealthy tier across the metro's monitors in 2025.
Insights: Cañon City, CO metro. Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 25 over 270 measured days in 2025, which corresponds to a Good band and a Excellent metro-wide health grade. The monitored-day split lands at 246 Good days (91%), 24 Moderate (9%), and 0 Unhealthy-for-Sensitive-Groups (0%). The 90th-percentile AQI finished at 49 while the highest single-day reading hit 77 (Moderate). Metro residents averaged roughly 27.3 clean-air days per 30-day window across the reporting year.
Across the 2020–2025 trend window, good days shifted by +229 and the median AQI moved +14 points, which classifies the multi-year trajectory as worsening. The metro avoided any Unhealthy-tier days entirely, an outcome that typically reflects favorable wind patterns, lower industrial density, or effective regional emission controls. Metros with comparable AQI profiles include Aberdeen, SD (87.1% good, AQI 25); Anchorage, AK (78.6% good, AQI 25); Lubbock, TX (89.9% good, AQI 25).
Air Quality Summary
Median AQI
25
Good
Good Days
91.1%
246 of 270 days
Max AQI
77
Moderate
Health Grade
Excellent
90th pct: 49
AQI Day Breakdown (2025)
Distribution of 270 monitored days across EPA AQI categories.
Good
246
91%
Moderate
24
9%
USG
0
0%
Unhealthy
0
0%
Very Unhealthy
0
0%
Hazardous
0
0%
Health Impact Assessment
The Cañon City, CO metro area's air quality is rated Excellent based on 91.1% 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 Cañon City, CO metro compare?
How Cañon City, CO compares
5-Year Air Quality Trend
Air quality is worsening in the Cañon City, CO metro. Best year: 2024 (354 good days).
| Year | Good | Moderate | Unhealthy | Median AQI | Max AQI |
|---|---|---|---|---|---|
| 2020 | 17 | 0 | 0 | 11 | 27 |
| 2021 | 85 | 1 | 0 | 15 | 62 |
| 2022 | 115 | 3 | 0 | 12 | 77 |
| 2023 | 162 | 1 | 0 | 12 | 71 |
| 2024 | 354 | 8 | 0 | 13 | 59 |
| 2025 | 246 | 24 | 0 | 25 | 77 |
Metros with Similar Air Quality
Metro areas across the US with a similar median AQI to Cañon City, CO.
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Worst Air Quality
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All Metro Areas
Annual AQI by CBSA for every monitored U.S. metro area.
Best and Worst City Air
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Air Quality Guides
Frequently Asked Questions
What is the air quality in the Cañon City, CO metro area? ▼
How many unhealthy air days does Cañon City, CO have? ▼
Is air quality in Cañon City, CO getting better or worse? ▼
What does AQI 25 mean for health? ▼
What is the 90th percentile AQI for Cañon City, CO? ▼
How does Cañon City, CO 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
Every figure on PlainAir 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.