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California

United States

2026-10-13 13:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
5.5
PM10
μg/m³
20.8
O3
μg/m³
37.6
NO2
μg/m³
18.4
CO
μg/m³
460.4
SO2
μg/m³
1.3
Weather
  • ℃
  • ℉
9℃
78%
2 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • PM10
  • O3
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 34
Alpine County
AQI 12
Amador County
AQI 23
Butte County
AQI 22
Calaveras County
AQI 23
Colusa County
AQI 22
Contra Costa County
AQI 36
Del Norte County
AQI 58
El Dorado County
AQI 26
Fresno County
AQI 45
Glenn County
AQI 19
Humboldt County
AQI 34
Imperial County
AQI 35
Inyo County
AQI 27
Kern County
AQI 46
Kings County
AQI 48
Lake County
AQI 60
Lassen County
AQI 20
Los Angeles County
AQI 39
Madera County
AQI 46
Marin County
AQI 15
Mariposa County
AQI 26
Mendocino County
AQI 57
Merced County
AQI 53
Modoc County
AQI 17
Mono County
AQI 11
Monterey County
AQI 34
Napa County
AQI 23
Nevada County
AQI 41
Orange County
AQI 51
Placer County
AQI 36
Plumas County
AQI 29
Riverside County
AQI 37
Sacramento County
AQI 39
San Benito County
AQI 19
San Bernardino County
AQI 25
San Diego County
AQI 22
San Francisco County
AQI 50
San Joaquin County
AQI 32
San Luis Obispo County
AQI 20
San Mateo County
AQI 39
Santa Barbara County
AQI 18
Santa Clara County
AQI 51
Santa Cruz County
AQI 27
Shasta County
AQI 23
Sierra County
AQI 29
Siskiyou County
AQI 24
Solano County
AQI 22
Sonoma County
AQI 13
Stanislaus County
AQI 49
Sutter County
AQI 24
Tehama County
AQI 24
Trinity County
AQI 28
Tulare County
AQI 55
Tuolumne County
AQI 26
Ventura County
AQI 26
Yolo County
AQI 25
Yuba County
AQI 30
Data Sources
http://www.airnow.gov/

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