What is the air quality trend in Catalina Foothills?

Over the past 15 days, Catalina Foothills had an average AQI of 54 based on station measurements. The worst day was 2026-07-16 with AQI 104.

How is Catalina Foothills air quality measured?

Air quality in Catalina Foothills 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 Catalina Foothills, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

326h

PM2.5 Station

326h · 3 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	37	37–37	8.8 µg/m³	1h	3
2026-07-21	50	15–78	13.5 µg/m³	19h	6
2026-07-20	59	9–118	17.5 µg/m³	24h	5
2026-07-19	66	42–158	19.9 µg/m³	23h	5
2026-07-18	69	23–162	23.4 µg/m³	24h	5
2026-07-17	94	25–324	49.9 µg/m³	24h	4
2026-07-16	104	24–187	44.5 µg/m³	24h	5
2026-07-15	42	22–64	10.6 µg/m³	24h	5
2026-07-14	41	15–57	10.0 µg/m³	23h	4
2026-07-13	47	23–181	14.5 µg/m³	24h	5
2026-07-12	46	23–174	13.8 µg/m³	23h	4
2026-07-11	43	17–257	16.3 µg/m³	24h	5
2026-07-10	41	27–62	10.2 µg/m³	22h	5
2026-07-09	42	24–55	10.1 µg/m³	24h	6
2026-07-08	40	20–63	9.9 µg/m³	23h	6

Back to Catalina Foothills Air Quality