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Air Quality History for Winthrop, United States

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

23
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

477h

PM2.5 Station

477h · 8 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-05-29 20 12–40 4.8 µg/m³ 21h 5
2026-05-28 25 14–34 5.9 µg/m³ 24h 6
2026-05-27 33 25–48 7.9 µg/m³ 24h 6
2026-05-26 31 18–45 7.4 µg/m³ 24h 5
2026-05-25 22 14–34 5.3 µg/m³ 24h 4
2026-05-24 26 17–35 6.2 µg/m³ 24h 4
2026-05-23 26 20–35 6.2 µg/m³ 24h 4
2026-05-22 23 15–31 5.5 µg/m³ 24h 6
2026-05-21 23 14–32 5.5 µg/m³ 24h 6
2026-05-20 52 31–77 13.9 µg/m³ 24h 5
2026-05-19 57 41–77 15.2 µg/m³ 24h 5
2026-05-18 39 28–54 9.4 µg/m³ 24h 5
2026-05-17 37 28–48 9.0 µg/m³ 24h 4
2026-05-16 25 15–45 6.0 µg/m³ 24h 5
2026-05-15 25 13–55 6.1 µg/m³ 24h 5
2026-05-14 30 18–164 9.1 µg/m³ 24h 4
2026-05-13 24 11–41 5.8 µg/m³ 24h 5
2026-05-12 21 10–35 4.9 µg/m³ 24h 5
2026-05-11 21 12–54 5.2 µg/m³ 24h 4
2026-05-10 29 20–56 7.1 µg/m³ 24h 5
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