What is the air quality trend in Columbine?

Over the past 14 days, Columbine had an average AQI of 30 based on station measurements. The worst day was 2026-07-06 with AQI 85.

How is Columbine air quality measured?

Air quality in Columbine is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Columbine, United States

Name: Columbine Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Columbine, United States.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

64h

PM2.5 Station

64h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	16	6–28	3.9 µg/m³	5h	1
2026-07-21	26	5–69	6.9 µg/m³	14h	1
2026-07-20	7	3–17	1.7 µg/m³	4h	1
2026-07-19	65	5–99	22.7 µg/m³	3h	1
2026-07-18	72	3–156	26.0 µg/m³	5h	1
2026-07-17	48	4–116	15.3 µg/m³	8h	1
2026-07-16	11	6–20	2.5 µg/m³	3h	1
2026-07-14	26	4–65	6.9 µg/m³	5h	1
2026-07-13	4	3–5	0.9 µg/m³	4h	1
2026-07-12	4	1–7	1.0 µg/m³	4h	1
2026-07-11	3	1–5	0.7 µg/m³	4h	1
2026-07-10	3	2–5	0.8 µg/m³	3h	1
2026-07-06	85	85–85	28.4 µg/m³	1h	25
2026-07-02	52	52–52	12.7 µg/m³	1h	23

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