What is the air quality trend in Saint George?

Over the past 15 days, Saint George had an average AQI of 43 based on station measurements. The worst day was 2026-08-04 with AQI 56.

How is Saint George air quality measured?

Air quality in Saint George 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 Saint George, United States

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

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

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

197h

PM2.5 Station

197h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-08-08	32	28–37	7.9 µg/m³	2h	2
2026-08-07	45	19–70	12.3 µg/m³	9h	1
2026-08-06	53	2–172	18.2 µg/m³	14h	1
2026-08-05	48	2–79	13.1 µg/m³	17h	1
2026-08-04	56	24–81	15.5 µg/m³	17h	1
2026-08-03	43	9–63	10.9 µg/m³	15h	1
2026-08-02	40	7–104	11.1 µg/m³	12h	1
2026-08-01	39	2–66	10.0 µg/m³	11h	1
2026-07-31	48	21–82	12.7 µg/m³	16h	1
2026-07-30	38	9–85	9.9 µg/m³	13h	1
2026-07-29	45	26–97	11.8 µg/m³	17h	1
2026-07-28	48	30–100	13.0 µg/m³	16h	1
2026-07-27	35	5–59	8.5 µg/m³	17h	1
2026-07-26	39	20–64	9.8 µg/m³	13h	1
2026-07-25	37	1–72	9.6 µg/m³	8h	1

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