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Air Quality History for Salem, United States

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

2
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

336h

PM2.5 Station

336h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-10-21 22 18–25 5.1 µg/m³ 4h 2
2026-10-20 26 8–82 6.9 µg/m³ 19h 2
2026-10-19 23 10–81 6.0 µg/m³ 17h 2
2026-10-18 19 6–27 4.5 µg/m³ 16h 2
2026-10-17 20 6–56 4.8 µg/m³ 20h 2
2026-10-16 25 12–61 6.2 µg/m³ 16h 2
2026-10-15 22 10–40 5.2 µg/m³ 15h 2
2026-10-14 29 11–43 6.9 µg/m³ 20h 2
2026-10-13 26 2–53 6.2 µg/m³ 21h 2
2026-10-12 22 5–56 5.4 µg/m³ 11h 2
2026-10-11 27 15–75 6.7 µg/m³ 17h 2
2026-10-10 27 8–53 6.6 µg/m³ 17h 1
2026-10-09 21 5–31 5.0 µg/m³ 16h 2
2026-10-08 29 12–87 7.4 µg/m³ 18h 2
2026-10-07 20 1–56 4.9 µg/m³ 20h 1
2026-10-06 26 8–64 6.6 µg/m³ 14h 1
2026-10-05 24 12–62 5.9 µg/m³ 18h 2
2026-10-04 19 3–69 4.7 µg/m³ 15h 2
2026-10-03 24 7–48 5.7 µg/m³ 13h 2
2026-10-02 38 8–56 9.3 µg/m³ 19h 2
2026-10-01 29 7–42 7.0 µg/m³ 10h 1
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