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Air Quality History for San Luis Obispo, United States

Historical PM2.5 and AQI trend from monitoring stations near San Luis Obispo, United States.

17
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

300h

PM2.5 Station

300h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-07-22 17 17–17 4.1 µg/m³ 1h 1
2026-07-21 49 7–106 13.9 µg/m³ 20h 1
2026-07-20 44 22–76 11.6 µg/m³ 20h 2
2026-07-19 44 20–95 11.7 µg/m³ 21h 2
2026-07-18 45 10–102 11.9 µg/m³ 20h 2
2026-07-17 40 12–63 9.8 µg/m³ 23h 2
2026-07-16 41 13–65 10.3 µg/m³ 22h 2
2026-07-15 56 9–93 16.0 µg/m³ 22h 2
2026-07-14 55 23–85 14.9 µg/m³ 23h 2
2026-07-13 38 5–67 9.6 µg/m³ 22h 2
2026-07-12 36 15–85 9.1 µg/m³ 24h 2
2026-07-11 47 14–80 12.9 µg/m³ 18h 2
2026-07-10 44 5–64 11.0 µg/m³ 22h 2
2026-07-09 41 20–63 9.9 µg/m³ 22h 1
2026-07-08 42 17–75 11.0 µg/m³ 20h 2
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