Metro area air quality · 2025
Steamboat Springs, CO
Median AQI 22 (Good). 93.7% of monitored days rated Good across this metro's EPA monitoring network.
- 22
- Median AQI
- 93.7%
- Good-air days
- 0
- Unhealthy days
- 92%
- Cleaner than US metros
Steamboat Springs, CO posted a 2025 median AQI of 22 (Good) with 93.7% Good days
According to the U.S. EPA Air Quality System, the Steamboat Springs, CO CBSA recorded a median AQI of 22 across 365 monitored days in 2025, with 93.7% 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 Steamboat Springs, CO CBSA's 93.7% Good-day share places it cleaner than 92% of US metros in 2025.
- Closest median-AQI peer
- Aberdeen, WA (97.3% Good, median AQI 22) is the closest nationwide median-AQI peer to Steamboat Springs, CO.
- 2020–2025 Good-day shift
- Steamboat Springs, CO's Good-day share moved -4.9 points from 2020 to 2025 (median AQI +8).
- Median AQI
- Median AQI: 22
Aggregated from EPA Air Quality System (2025), 365 monitored days. EPA AQS →
The verdict
Steamboat Springs, CO sits in the upper Good-day tercile among EPA CBSA metros on this site (93.7% of 365 monitored days). On the EPA scale the metro runs good, among the cleanest 10% of US metros, with a median AQI of 22 and 93.7% of 365 monitored days in the Good band.
- 22
- median AQI · Good
- 93.7%
- days rated Good
- 92%
- cleaner than US metros
- 87
- 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
- Steamboat Springs, CO metro's Good-day share fell from 99.7% to 93.7% between the 2024 and 2025 EPA annual releases, a change of -6.0 percentage points.
- Steamboat Springs, CO metro's peak single-day AQI rose from 53 to 87 between the 2024 and 2025 EPA annual releases, a change of +34 points.
- Steamboat Springs, CO metro's median AQI rose from 12 to 22 between the 2024 and 2025 EPA annual releases, a change of +10 points.
Steamboat Springs, CO sits in the upper Good-day tercile among EPA CBSA metros on this site (93.7% of 365 monitored days). Signature read: 93.7% 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 22 over 365 measured days in 2025 (Good / Excellent). The monitored-day split lands at 342 Good (94%), 23 Moderate (6%), and 0 Unhealthy-for-Sensitive-Groups (0%). The 90th-percentile AQI finished at 42; the highest single-day reading hit 87 (Moderate).
Across 2020–2025, Good-day share shifted -4.9 points and median AQI moved +8 (worsening). No Unhealthy-tier days appear in this annual dataset. Metros with comparable AQI profiles include Aberdeen, WA (97.3% good, AQI 22); Bremerton-Silverdale, WA (95.5% good, AQI 22); Gardnerville Ranchos, NV (91.1% good, AQI 22).
Air Quality Summary
Median AQI
22
Good
Good Days
93.7%
342 of 365 days
Max AQI
87
Moderate
Health Grade
Excellent
90th pct: 42
AQI Day Breakdown (2025)
Distribution of 365 monitored days across EPA AQI categories.
Good
342
94%
Moderate
23
6%
USG
0
0%
Unhealthy
0
0%
Very Unhealthy
0
0%
Hazardous
0
0%
Health Impact Assessment
The Steamboat Springs, CO metro area's air quality is rated Excellent based on 93.7% 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 Steamboat Springs, CO metro compare?
How Steamboat Springs, CO compares
5-Year Air Quality Trend
Air quality is worsening in the Steamboat Springs, CO metro. Highest Good-day share: 2022 (100.0%, 356 of 356 monitored days).
| Year | Good | Moderate | Unhealthy | Median AQI | Max AQI |
|---|---|---|---|---|---|
| 2020 | 353 | 5 | 0 | 14 | 68 |
| 2021 | 347 | 7 | 0 | 15 | 68 |
| 2022 | 356 | 0 | 0 | 13 | 43 |
| 2023 | 348 | 5 | 0 | 13 | 58 |
| 2024 | 364 | 1 | 0 | 12 | 53 |
| 2025 | 342 | 23 | 0 | 22 | 87 |
Metros with a similar median AQI
CBSA peers nationwide whose annual median AQI sits near Steamboat Springs, CO (22).
Aberdeen, WA
Median AQI 22 · 97.3% Good-day share
Bremerton-Silverdale, WA
Median AQI 22 · 95.5% Good-day share
Gardnerville Ranchos, NV
Median AQI 22 · 91.1% Good-day share
Longview, WA
Median AQI 22 · 90.4% Good-day share
Bend-Redmond, OR
Median AQI 23 · 89.3% Good-day share
Cañon City, CO
Median AQI 23 · 93.4% Good-day share
Metros with similar unhealthy-day exposure
A second relationship type: metros whose unhealthy-or-worse day count is closest to Steamboat Springs, 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 Steamboat Springs, CO have? ▼
What is the air quality in the Steamboat Springs, CO metro area? ▼
Is air quality in Steamboat Springs, CO getting better or worse? ▼
What does AQI 22 mean for health? ▼
How does Steamboat Springs, CO compare to other metro areas? ▼
What is the 90th percentile AQI for Steamboat Springs, CO? ▼
Data Sources
Primary Source: U.S. Environmental Protection Agency (EPA), Air Quality System (AQS), Annual AQI by CBSA dataset for Steamboat Springs, 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, Steamboat Springs, CO · 2020–2025