Home › United States › Denver › History

Air Quality History for Denver, United States

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

29
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

480h

PM2.5 Station

480h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-06-09 25 11–30 6.0 µg/m³ 11.3 11h 34
2026-06-08 25 17–38 6.0 µg/m³ 38.2 24h 42
2026-06-07 21 17–25 5.0 µg/m³ 25.3 24h 42
2026-06-06 27 19–37 6.5 µg/m³ 29.2 24h 42
2026-06-05 25 18–33 5.9 µg/m³ 34.6 24h 42
2026-06-04 25 19–37 5.9 µg/m³ 35.9 24h 44
2026-06-03 27 22–34 6.5 µg/m³ 32.6 24h 43
2026-06-02 24 20–33 5.9 µg/m³ 17.9 24h 43
2026-06-01 25 17–48 5.9 µg/m³ 19.6 24h 38
2026-05-31 21 17–39 5.1 µg/m³ 10.6 24h 42
2026-05-30 23 18–33 5.6 µg/m³ 22.3 24h 42
2026-05-29 28 18–45 6.8 µg/m³ 28.9 24h 43
2026-05-28 24 15–51 5.6 µg/m³ 13.1 24h 40
2026-05-27 22 18–30 5.2 µg/m³ 16.1 24h 42
2026-05-26 22 19–30 5.4 µg/m³ 26.3 24h 42
2026-05-25 22 18–26 5.2 µg/m³ 22.5 24h 42
2026-05-24 22 15–38 5.3 µg/m³ 27.5 24h 41
2026-05-23 19 15–27 4.6 µg/m³ 10.5 24h 41
2026-05-22 20 14–30 4.9 µg/m³ 9.7 24h 40
2026-05-21 30 20–51 7.3 µg/m³ 17.2 24h 41
2026-05-20 24 15–36 5.7 µg/m³ 13.0 13h 41
Back to Denver Air Quality