What is the air quality trend in Casper?

Over the past 15 days, Casper had an average AQI of 36 based on station measurements. The worst day was 2026-07-28 with AQI 53.

How is Casper air quality measured?

Air quality in Casper 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 Casper, United States

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

220h

PM2.5 Station

220h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-08-08	9	9–9	2.2 µg/m³	1h	1
2026-08-07	36	19–63	9.1 µg/m³	15h	1
2026-08-06	44	2–108	11.9 µg/m³	14h	1
2026-08-05	43	19–63	11.2 µg/m³	11h	1
2026-08-04	30	11–57	7.3 µg/m³	15h	1
2026-08-03	26	12–52	6.3 µg/m³	16h	2
2026-08-02	37	1–116	10.0 µg/m³	15h	2
2026-08-01	36	20–78	8.9 µg/m³	19h	1
2026-07-31	42	16–63	10.5 µg/m³	16h	2
2026-07-30	33	12–59	8.1 µg/m³	14h	1
2026-07-29	46	25–99	12.2 µg/m³	19h	1
2026-07-28	53	25–118	14.6 µg/m³	17h	1
2026-07-27	40	17–67	9.9 µg/m³	18h	1
2026-07-26	37	10–57	9.0 µg/m³	18h	2
2026-07-25	34	5–57	8.4 µg/m³	12h	1

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