Colorado Springs Air Quality in October
Across 2019–2025, Colorado Springs's October air quality had a median AQI of 44 (Good) over 217 monitored days in the Colorado Springs, CO area. 0.0% of October days (0 of 217) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 74.7% of days. The cleanest October on record here was 2019 (median AQI 41, 0 days above 100) and the worst was 2024 (median 50, 0 days above 100, peak AQI 76).
- Good: 79.7%
- Moderate: 20.3%
- Unhealthy for Sensitive Groups: 0.0%
- Unhealthy or worse: 0.0%
Extra Protection for Colorado Springs Homes
Air quality in Colorado Springs is moderate (AQI 54), with fine particles (PM2.5) the main concern. A True-HEPA purifier gives sensitive groups — kids, seniors and anyone with asthma or allergies — cleaner air indoors on days like today.
Recommended: Coway AP-1512HH Mighty — True HEPA + carbon · CADR ~246 CFM · rooms up to 361 sq ft
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How is the air in Colorado Springs in October?
Good on a typical day: median AQI 44 across 2019–2025, with 0.0% of October days above AQI 100. Ground-level ozone is the main driver.
- ✓79.7% of October days were Good (AQI 0–50), 20.3% Moderate (51–100).
- ✓0 days of 217 reached AQI 101+; the October peak was 77.
- ✓Best October: 2019; worst October: 2024.
Frequently asked questions
What is the air quality like in Colorado Springs in October?▾
Across 2019–2025, the median daily AQI in Colorado Springs in October was 44 (Good). 79.7% of days were Good, 20.3% Moderate, and 0.0% reached Unhealthy for Sensitive Groups or worse, based on 217 monitored days in EPA's Air Quality System.
Is October a good time for outdoor exercise in Colorado Springs?▾
A typical October day in Colorado Springs sits in the Good range (median AQI 44), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of October days reached AQI 101+ in 2019–2025.
Which pollutant causes Colorado Springs's October air quality problems?▾
Ground-level ozone set the daily AQI on 74.7% of October days in Colorado Springs. The highest October AQI recorded in 2019–2025 was 77 (Moderate), in 2024.
Colorado Springs October air quality, year by year
Colorado Springs October air quality by year (Colorado Springs, CO, EPA AQS daily AQI)
| Year | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| 2019cleanest | 31 | 41 | 0 | 50 | O3 |
| 2020 | 31 | 47 | 0 | 77 | PM2.5 |
| 2021 | 31 | 45 | 0 | 67 | O3 |
| 2022 | 31 | 44 | 0 | 54 | O3 |
| 2023 | 31 | 45 | 0 | 52 | O3 |
| 2024worst | 31 | 50 | 0 | 76 | PM2.5 |
| 2025 | 31 | 43 | 0 | 54 | O3 |
What October air means in Colorado Springs
A typical October day in Colorado Springs sits in the Good range (median AQI 44), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of October days reached AQI 101+ in 2019–2025.
October's median AQI of 44 is in line with Colorado Springs's whole-year median of 46, so this period is neither a clean nor a dirty stretch for the area. Nationally, the median October AQI across every EPA metro area (102,872 metro-days, 2019–2025) is 38, so Colorado Springs runs above the national October norm; 0.0% of its October days topped AQI 100 versus 1.3% nationally (below average).
October is part of Colorado Springs's fall season (September, October, November); the fall page pools all three months.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Colorado Springs
The latest EPA AirNow observation puts Colorado Springs's AQI at 54 (PM2.5). The figures above are multi-year month statistics, not today's reading.
View current Colorado Springs air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Colorado Springs, CO), 2019–2025. Daily AQI per CBSA is the highest AQI reported by any monitor in the area that day; the defining parameter is the pollutant that set it. Month and season statistics pool every such day in the period across all years listed. Retrieved 2026-09-09.