Home › United States › Ellicott City › History

Air Quality History for Ellicott City, United States

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

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

Air Quality Index Station

457h

PM2.5 Station

457h · 5 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-07-22 27 26–28 6.5 µg/m³ 2h 18
2026-07-21 52 30–74 14.3 µg/m³ 24h 29
2026-07-20 68 56–82 20.3 µg/m³ 24h 27
2026-07-19 60 36–90 17.4 µg/m³ 24h 29
2026-07-18 128 59–156 48.3 µg/m³ 24h 29
2026-07-17 166 72–232 97.1 µg/m³ 24h 31
2026-07-16 61 30–166 18.0 µg/m³ 24h 28
2026-07-15 51 40–81 12.9 µg/m³ 24h 30
2026-07-14 40 32–52 9.6 µg/m³ 24h 28
2026-07-13 38 30–53 9.1 µg/m³ 24h 28
2026-07-12 41 29–49 9.8 µg/m³ 24h 27
2026-07-11 43 28–51 10.2 µg/m³ 24h 23
2026-07-10 42 26–62 10.8 µg/m³ 24h 27
2026-07-09 34 24–40 8.2 µg/m³ 24h 28
2026-07-08 39 27–52 9.4 µg/m³ 24h 30
2026-07-07 49 33–56 12.0 µg/m³ 24h 32
2026-07-06 48 34–59 11.9 µg/m³ 13h 30
2026-07-05 101 55–160 35.4 µg/m³ 24h 32
2026-07-04 55 39–65 14.5 µg/m³ 24h 31
2026-07-03 56 53–60 14.7 µg/m³ 24h 34
2026-07-02 56 52–58 14.1 µg/m³ 10h 33
Back to Ellicott City Air Quality