What is the air quality trend in Cedar Rapids?

Over the past 15 days, Cedar Rapids had an average AQI of 57 based on station measurements. The worst day was 2026-07-17 with AQI 153.

How is Cedar Rapids air quality measured?

Air quality in Cedar Rapids is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Cedar Rapids, United States

Name: Cedar Rapids Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

235h

PM2.5 Station

235h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	54	25–80	15.1 µg/m³	15h	2
2026-07-20	55	16–85	16.0 µg/m³	20h	1
2026-07-19	56	10–124	16.5 µg/m³	19h	2
2026-07-18	79	4–161	29.9 µg/m³	17h	2
2026-07-17	153	2–322	107.5 µg/m³	15h	1
2026-07-16	76	10–399	42.4 µg/m³	19h	1
2026-07-15	42	10–79	10.8 µg/m³	19h	1
2026-07-14	35	6–59	8.7 µg/m³	16h	1
2026-07-13	36	13–55	8.6 µg/m³	12h	1
2026-07-12	33	5–68	8.5 µg/m³	15h	1
2026-07-11	38	19–62	9.2 µg/m³	14h	2
2026-07-10	31	3–59	7.6 µg/m³	14h	2
2026-07-09	72	10–495	41.9 µg/m³	16h	2
2026-07-08	51	21–117	14.4 µg/m³	22h	2
2026-07-07	58	17–99	19.5 µg/m³	2h	2

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