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Air Quality History for Philadelphia, United States

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

53
Current AQI
Moderate Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

451h

PM2.5 Station

451h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-07-21 74 54–92 23.3 µg/m³ 24.5 21h 1
2026-07-20 46 20–82 12.7 µg/m³ 13.1 24h 1
2026-07-19 75 14–109 24.4 µg/m³ 26.2 24h 1
2026-07-18 164 85–185 89.1 µg/m³ 95.6 24h 1
2026-07-17 197 173–265 134.7 µg/m³ 143.8 24h 1
2026-07-16 168 139–186 90.2 µg/m³ 96.1 24h 1
2026-07-15 73 67–80 22.7 µg/m³ 23.1 24h 1
2026-07-14 57 42–71 15.0 µg/m³ 15.3 24h 1
2026-07-13 41 24–57 10.0 µg/m³ 10.4 24h 1
2026-07-12 60 51–76 16.2 µg/m³ 16.6 24h 1
2026-07-11 74 36–91 23.0 µg/m³ 23.6 24h 1
2026-07-10 65 21–90 19.4 µg/m³ 19.8 24h 1
2026-07-09 41 15–85 10.7 µg/m³ 10.9 24h 1
2026-07-08 11 4–22 2.7 µg/m³ 2.8 23h 1
2026-07-07 36 13–65 8.7 µg/m³ 9.1 22h 1
2026-07-06 34 6–55 8.2 µg/m³ 8.2 14h 7
2026-07-05 68 39–153 20.1 µg/m³ 21.1 24h 1
2026-07-04 39 19–60 9.5 µg/m³ 9.8 23h 1
2026-07-03 68 56–82 20.3 µg/m³ 20.9 19h 1
2026-07-02 64 53–85 18.4 µg/m³ 19.2 15h 6
2026-07-01 76 75–77 23.9 µg/m³ 24.2 2h 1
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