What is the air quality trend in Clearlake?

Over the past 15 days, Clearlake had an average AQI of 18 based on station measurements. The worst day was 2026-06-02 with AQI 30.

How is Clearlake air quality measured?

Air quality in Clearlake 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 Clearlake, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

328h

PM2.5 Station

328h · 17 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-09	10	8–13	2.5 µg/m³	17h	17
2026-06-08	17	14–18	4.1 µg/m³	24h	17
2026-06-07	16	15–18	3.9 µg/m³	24h	17
2026-06-06	17	16–18	4.1 µg/m³	23h	17
2026-06-05	21	17–24	5.0 µg/m³	24h	16
2026-06-04	18	14–30	4.3 µg/m³	24h	17
2026-06-03	26	16–29	6.1 µg/m³	24h	17
2026-06-02	30	22–40	7.3 µg/m³	24h	17
2026-06-01	23	21–24	5.4 µg/m³	21h	17
2026-05-31	21	18–24	5.0 µg/m³	24h	17
2026-05-30	18	16–21	4.3 µg/m³	24h	17
2026-05-29	14	12–18	3.4 µg/m³	24h	17
2026-05-28	16	12–21	3.8 µg/m³	22h	16
2026-05-27	14	12–16	3.3 µg/m³	24h	16
2026-05-26	14	13–15	3.3 µg/m³	5h	17

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