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Air Quality History for Hermiston, United States

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

31
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

479h

PM2.5 Station

479h · 5 stations

Temperature GFS model

79pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-05-29 19 8–64 4.8 µg/m³ 24h 7
2026-05-28 21 14–30 5.0 µg/m³ 24h 7
2026-05-27 14 11–22 3.4 µg/m³ 24h 7
2026-05-26 11 7–16 2.6 µg/m³ 24h 7
2026-05-25 18 13–26 4.2 µg/m³ 24h 7
2026-05-24 20 13–29 4.8 µg/m³ 24h 7
2026-05-23 19 10–27 4.5 µg/m³ 24h 7
2026-05-22 15 7–23 3.5 µg/m³ 24h 7
2026-05-21 16 10–23 3.7 µg/m³ 24h 7
2026-05-20 13 8–18 3.0 µg/m³ 24h 7
2026-05-19 13 9–16 3.2 µg/m³ 24h 7
2026-05-18 12 7–17 3.0 µg/m³ 24h 7
2026-05-17 10 5–17 2.3 µg/m³ 24h 6
2026-05-16 9 5–17 2.3 µg/m³ 24h 6
2026-05-15 10 6–14 2.3 µg/m³ 24h 7
2026-05-14 10 7–13 2.4 µg/m³ 24h 6
2026-05-13 18 8–27 4.4 µg/m³ 24h 6
2026-05-12 18 13–30 4.4 µg/m³ 24h 6
2026-05-11 16 11–20 3.8 µg/m³ 24h 6
2026-05-10 18 10–25 4.4 µg/m³ 23h 6
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