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Air Quality History for Chapel Hill, United States

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

26
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

471h

PM2.5 Station

471h · 4 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-05-29 30 18–47 7.1 µg/m³ 14h 4
2026-05-28 30 20–52 7.2 µg/m³ 24h 4
2026-05-27 29 12–54 6.9 µg/m³ 24h 4
2026-05-26 31 18–60 7.5 µg/m³ 23h 3
2026-05-25 30 14–54 7.2 µg/m³ 24h 4
2026-05-24 26 18–47 6.3 µg/m³ 24h 5
2026-05-23 23 15–32 5.5 µg/m³ 24h 4
2026-05-22 24 12–36 5.7 µg/m³ 24h 4
2026-05-21 27 17–41 6.4 µg/m³ 24h 4
2026-05-20 32 17–48 7.6 µg/m³ 24h 4
2026-05-19 37 24–53 8.8 µg/m³ 24h 4
2026-05-18 44 30–65 10.9 µg/m³ 24h 4
2026-05-17 43 18–60 10.5 µg/m³ 22h 4
2026-05-16 38 27–54 9.1 µg/m³ 21h 4
2026-05-15 28 15–50 6.7 µg/m³ 24h 4
2026-05-14 42 19–161 12.8 µg/m³ 24h 4
2026-05-13 36 22–54 8.6 µg/m³ 24h 4
2026-05-12 31 18–57 7.4 µg/m³ 24h 4
2026-05-11 33 18–59 7.9 µg/m³ 24h 4
2026-05-10 31 12–44 7.5 µg/m³ 23h 4
2026-05-09 38 34–44 9.1 µg/m³ 8h 4
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