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Air Quality History for Monrovia, United States

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

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

Air Quality Index Station

453h

PM2.5 Station

453h · 2 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-10-21 9 6–15 2.2 µg/m³ 2.6 3h 2
2026-10-20 22 3–46 5.2 µg/m³ 5.9 24h 2
2026-10-19 13 3–23 3.2 µg/m³ 3.6 24h 2
2026-10-18 9 3–63 2.1 µg/m³ 2.6 21h 1
2026-10-17 3 1–9 0.8 µg/m³ 0.9 19h 1
2026-10-16 5 1–9 1.1 µg/m³ 1.2 17h 1
2026-10-15 10 1–33 2.3 µg/m³ 2.6 20h 2
2026-10-14 9 1–21 2.1 µg/m³ 2.3 22h 2
2026-10-13 7 3–25 1.7 µg/m³ 2.1 24h 2
2026-10-12 6 1–15 1.6 µg/m³ 2.2 20h 2
2026-10-11 19 9–30 4.6 µg/m³ 5.2 24h 2
2026-10-10 30 12–46 7.3 µg/m³ 7.6 24h 2
2026-10-09 30 3–59 7.2 µg/m³ 7.8 24h 2
2026-10-08 28 1–55 6.7 µg/m³ 7.1 24h 2
2026-10-07 18 4–42 4.3 µg/m³ 4.8 24h 2
2026-10-06 10 1–41 2.4 µg/m³ 2.6 23h 2
2026-10-05 14 1–33 3.4 µg/m³ 3.6 24h 2
2026-10-04 9 1–21 1.8 µg/m³ 1.8 24h 2
2026-10-03 11 1–33 2.6 µg/m³ 2.8 24h 1
2026-10-02 27 1–53 6.4 µg/m³ 7.0 24h 2
2026-10-01 40 27–56 9.6 µg/m³ 11.1 20h 2
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