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Air Quality History for Littleton, United States

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

28
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

477h

PM2.5 Station

477h · 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 22 8–27 5.4 µg/m³ 11.3 14h 28
2026-06-08 23 16–33 5.5 µg/m³ 38.2 24h 34
2026-06-07 18 16–21 4.4 µg/m³ 25.3 24h 34
2026-06-06 24 17–34 5.7 µg/m³ 29.2 24h 33
2026-06-05 22 17–27 5.4 µg/m³ 34.6 24h 35
2026-06-04 19 16–23 4.6 µg/m³ 35.9 24h 35
2026-06-03 23 20–27 5.5 µg/m³ 32.6 24h 34
2026-06-02 20 19–22 4.9 µg/m³ 17.9 24h 35
2026-06-01 19 15–25 4.4 µg/m³ 19.6 21h 35
2026-05-31 17 15–19 4.0 µg/m³ 10.6 24h 34
2026-05-30 20 16–23 4.7 µg/m³ 22.3 24h 34
2026-05-29 23 16–38 5.6 µg/m³ 28.9 24h 34
2026-05-28 18 12–26 4.4 µg/m³ 13.1 24h 32
2026-05-27 18 17–18 4.2 µg/m³ 16.1 24h 34
2026-05-26 19 18–21 4.6 µg/m³ 26.3 24h 34
2026-05-25 20 17–22 4.7 µg/m³ 22.5 24h 34
2026-05-24 19 15–23 4.7 µg/m³ 27.5 24h 33
2026-05-23 16 15–20 3.9 µg/m³ 10.5 24h 33
2026-05-22 18 6–24 4.2 µg/m³ 9.7 24h 32
2026-05-21 28 20–32 6.6 µg/m³ 17.2 24h 33
2026-05-20 22 16–30 5.4 µg/m³ 14.5 10h 33
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