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Air Quality History for Princeton, United States

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

54
Current AQI
Moderate Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

459h

PM2.5 Station

459h · 7 stations

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 56 44–65 14.8 µg/m³ 22.4 23h 75
2026-07-20 48 30–73 12.3 µg/m³ 10.5 24h 74
2026-07-19 57 28–72 16.1 µg/m³ 25.1 24h 78
2026-07-18 143 75–166 62.7 µg/m³ 87.9 24h 78
2026-07-17 183 155–228 112.3 µg/m³ 117.1 24h 82
2026-07-16 148 92–171 59.1 µg/m³ 106.6 24h 75
2026-07-15 59 54–78 16.0 µg/m³ 24.6 24h 79
2026-07-14 45 37–55 11.0 µg/m³ 14.3 24h 78
2026-07-13 39 31–52 9.4 µg/m³ 9.9 24h 79
2026-07-12 47 40–55 11.4 µg/m³ 17.2 24h 76
2026-07-11 54 35–63 13.8 µg/m³ 18.7 24h 64
2026-07-10 52 30–62 13.3 µg/m³ 16.7 24h 78
2026-07-09 33 22–53 7.9 µg/m³ 8.2 24h 80
2026-07-08 19 12–26 4.5 µg/m³ 2.8 24h 82
2026-07-07 28 22–38 6.7 µg/m³ 9.0 24h 82
2026-07-06 31 13–52 7.4 µg/m³ 7.6 14h 70
2026-07-05 55 46–63 14.1 µg/m³ 14.9 24h 82
2026-07-04 38 31–55 9.2 µg/m³ 7.9 24h 81
2026-07-03 57 54–61 15.0 µg/m³ 16.3 24h 81
2026-07-02 62 54–84 17.4 µg/m³ 15.1 14h 65
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