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Air Quality History for Salem, United States

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

15
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

241h

PM2.5 Station

241h · 3 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-10-21 17 9–23 4.1 µg/m³ 6h 2
2026-10-20 23 8–57 5.7 µg/m³ 18h 2
2026-10-19 21 9–51 5.1 µg/m³ 17h 2
2026-10-18 15 9–43 3.7 µg/m³ 15h 2
2026-10-17 18 7–39 4.3 µg/m³ 16h 2
2026-10-16 38 13–269 18.2 µg/m³ 17h 2
2026-10-15 18 12–30 4.2 µg/m³ 15h 2
2026-10-14 27 8–46 6.5 µg/m³ 14h 2
2026-10-13 29 10–58 7.1 µg/m³ 22h 2
2026-10-12 23 5–52 5.4 µg/m³ 17h 1
2026-10-11 14 9–24 3.4 µg/m³ 22h 3
2026-10-10 24 16–42 5.7 µg/m³ 17h 2
2026-10-09 22 1–39 5.2 µg/m³ 20h 2
2026-10-08 23 12–42 5.5 µg/m³ 18h 2
2026-10-07 25 7–88 7.3 µg/m³ 7h 2
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