Metro area air quality · 2025
Cañon City, CO
Median AQI 23 (Good). 93.4% of monitored days rated Good across this metro's EPA monitoring network.
- 23
- Median AQI
- 93.4%
- Good-air days
- 0
- Unhealthy days
- 92%
- Cleaner than US metros
Cañon City, CO posted a 2025 median AQI of 23 (Good) with 93.4% Good days
According to the U.S. EPA Air Quality System, the Cañon City, CO CBSA recorded a median AQI of 23 across 362 monitored days in 2025, with 93.4% 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 Cañon City, CO CBSA's 93.4% Good-day share places it cleaner than 92% of US metros in 2025.
- Closest median-AQI peer
- Bend-Redmond, OR (89.3% Good, median AQI 23) is the closest nationwide median-AQI peer to Cañon City, CO.
- 2020–2025 Good-day shift
- Cañon City, CO's Good-day share moved -6.6 points from 2020 to 2025 (median AQI +12).
- Median AQI
- Median AQI: 23
Aggregated from EPA Air Quality System (2025), 362 monitored days. EPA AQS →
The verdict
Cañon City, CO sits in the upper Good-day tercile among EPA CBSA metros on this site (93.4% of 362 monitored days). On the EPA scale the metro runs good, among the cleanest 10% of US metros, with a median AQI of 23 and 93.4% of 362 monitored days in the Good band.
- 23
- median AQI · Good
- 93.4%
- days rated Good
- 92%
- cleaner than US metros
- 77
- 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
- Cañon City, CO metro's Good-day share fell from 97.8% to 93.4% between the 2024 and 2025 EPA annual releases, a change of -4.4 percentage points.
- Cañon City, CO metro's median AQI rose from 13 to 23 between the 2024 and 2025 EPA annual releases, a change of +10 points.
- Cañon City, CO metro's peak single-day AQI rose from 59 to 77 between the 2024 and 2025 EPA annual releases, a change of +18 points.
Cañon City, CO sits in the upper Good-day tercile among EPA CBSA metros on this site (93.4% of 362 monitored days). Signature read: 93.4% 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 23 over 362 measured days in 2025 (Good / Excellent). The monitored-day split lands at 338 Good (93%), 24 Moderate (7%), and 0 Unhealthy-for-Sensitive-Groups (0%). The 90th-percentile AQI finished at 45; the highest single-day reading hit 77 (Moderate).
Across 2020–2025, Good-day share shifted -6.6 points and median AQI moved +12 (worsening). No Unhealthy-tier days appear in this annual dataset. Metros with comparable AQI profiles include Bend-Redmond, OR (89.3% good, AQI 23); Juneau, AK (84.3% good, AQI 23); Pullman, WA (86.8% good, AQI 23).
Air Quality Summary
Median AQI
23
Good
Good Days
93.4%
338 of 362 days
Max AQI
77
Moderate
Health Grade
Excellent
90th pct: 45
AQI Day Breakdown (2025)
Distribution of 362 monitored days across EPA AQI categories.
Good
338
93%
Moderate
24
7%
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 93.4% 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. Highest Good-day share: 2023 (99.4%, 162 of 163 monitored 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 | 338 | 24 | 0 | 23 | 77 |
Metros with a similar median AQI
CBSA peers nationwide whose annual median AQI sits near Cañon City, CO (23).
Bend-Redmond, OR
Median AQI 23 · 89.3% Good-day share
Juneau, AK
Median AQI 23 · 84.3% Good-day share
Pullman, WA
Median AQI 23 · 86.8% Good-day share
Shelton, WA
Median AQI 23 · 90.4% Good-day share
Aberdeen, WA
Median AQI 22 · 97.3% Good-day share
Bremerton-Silverdale, WA
Median AQI 22 · 95.5% Good-day share
Metros with similar unhealthy-day exposure
A second relationship type: metros whose unhealthy-or-worse day count is closest to Cañon City, CO's 0 (independent of median AQI).
Aberdeen, SD
0 unhealthy-or-worse days · median AQI 27
Adrian, MI
0 unhealthy-or-worse days · median AQI 41
Akron, OH
0 unhealthy-or-worse days · median AQI 45
Albany, GA
0 unhealthy-or-worse days · median AQI 46
Albany, OR
0 unhealthy-or-worse days · median AQI 27
Albany-Schenectady-Troy, NY
0 unhealthy-or-worse days · median AQI 41
Frequently Asked Questions
How many unhealthy air days does Cañon City, CO have? ▼
What is the air quality in the Cañon City, CO metro area? ▼
Is air quality in Cañon City, CO getting better or worse? ▼
What does AQI 23 mean for health? ▼
How does Cañon City, CO compare to other metro areas? ▼
What is the 90th percentile AQI for Cañon City, CO? ▼
Data Sources
Primary Source: U.S. Environmental Protection Agency (EPA), Air Quality System (AQS), Annual AQI by CBSA dataset for Cañon City, CO, 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, Cañon City, CO · 2020–2025