Colorado Springs Air Quality in 2023

In 2023, Colorado Springs's air quality (Colorado Springs, CO area) had a median daily AQI of 47 (Good) across 365 monitored days. 2 days (0.5%) reached Unhealthy for Sensitive Groups or worse, 240 were Good, and the year's peak AQI was 154 (Unhealthy). Ground-level ozone set the daily AQI on 334 of those days. The cleanest month of 2023 was January (median AQI 41, 0 days above 100) and the worst was May (median 61, 2 days above 100, peak 154).

47
Median AQI
Good
2
Days above AQI 100
0.5% of 365 days
67
90th percentile AQI
worst 1 day in 10
154
Peak AQI
Unhealthy
O3
Main pollutant
334 of 365 days
240
Good days
65.8% of days
  • Good: 65.8%
  • Moderate: 33.7%
  • Unhealthy for Sensitive Groups: 0.3%
  • Unhealthy or worse: 0.3%

Reduce Indoor Ozone in Colorado Springs

Today's main pollutant in Colorado Springs is ground-level ozone (AQI 36). Important: standard HEPA filters do NOT remove ozone — only a purifier with a substantial activated-carbon bed adsorbs it. The biggest wins are cutting indoor sources (gas appliances, certain "ionizer" purifiers) and ventilating when outdoor ozone is low (early morning). A high-carbon unit helps with the gases and VOCs that linger indoors.

Recommended: Levoit Core 300True HEPA + activated carbon · CADR ~141 CFM · rooms up to 219 sq ft

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QUICK ANSWER

How was Colorado Springs's air quality in 2023?

Good on a typical day: median AQI 47, with 2 days above AQI 100 out of 365 monitored — the 4th cleanest of 7 years on record for the area.

  • Peak AQI in 2023: 154 (Unhealthy).
  • Ground-level ozone was the main pollutant on 334 days.
  • Cleanest month: January; worst: May.

Frequently asked questions

What was the average AQI in Colorado Springs in 2023?

EPA's Air Quality System puts Colorado Springs's (Colorado Springs, CO) median daily AQI for 2023 at 47, which is Good. 2 days were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 154.

Which month had the worst air quality in Colorado Springs in 2023?

The cleanest month of 2023 was January (median AQI 41, 0 days above 100) and the worst was May (median 61, 2 days above 100, peak 154).

Was 2023 a good or bad year for Colorado Springs's air?

Among the 7 years EPA has published for the area (2019–2025), 2023 ranks 4th cleanest by days above AQI 100. 2023's median of 47 is in line with the area's typical annual median of 46.

Colorado Springs month by month in 2023

Colorado Springs air quality month by month, 2023 (Colorado Springs, CO, EPA AQS daily AQI)

MonthDays monitoredMedian AQIDays above 100Peak AQIMain pollutant
Januarycleanest3141050O3
February2844064O3
March3145077O3
April3051080O3
Mayworst31612154O3
June3050077O3
July3158097O3
August3161097O3
September3050067O3
October3145052O3
November3043049O3
December3142052O3

How 2023 compares

Among the 7 years EPA has published for the area (2019–2025), 2023 ranks 4th cleanest by days above AQI 100.

2023's median of 47 is in line with the area's typical annual median of 46.

Activity-specific thresholds: running, cycling, kids' sports.

Right now in Colorado Springs

The latest EPA AirNow observation puts Colorado Springs's AQI at 36 (O3). The figures above are multi-year annual 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.