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Chico Air Quality Index (AQI) | Air Pollution

Real-time PM2.5, PM10 air pollution level in California

Last Updated: 2025-08-26 12:10:31 PM (Local Time)

Live AQI

43(AQI-US)

Air Quality is

Good

pm10 : 37 µg/m³

PM2.5 : 8 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

27 °C

Last Updated: 2025-08-26 12:10:31 PM (Local Time)

Map

Chico

Major Air Pollutants
Chico

Particulate Matter(PM2.5)

8µg/m³

Particulate Matter(PM10)

37µg/m³

Carbon Monoxide(CO)

2ppb

Sulfur Dioxide(SO2)

1ppb

Nitrogen Dioxide(NO2)

6ppb

Ozone(O3)

21ppb

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AQI Graph

Historical Air Quality Data
Chico

24 Hours

AQI

Chico

AQI

25-08-2025Time26-08-2025

Time	Chico
12 PM	29
01 PM	30
02 PM	35
03 PM	38
04 PM	44
05 PM	44
06 PM	46
07 PM	36
08 PM	42
09 PM	39
10 PM	36
11 PM	32
12 AM	46
01 AM	48
02 AM	47
03 AM	46
04 AM	40
05 AM	37
06 AM	33
07 AM	36
08 AM	39
09 AM	43
10 AM	43
11 AM	43
12 PM	43

Min.at 12:24 PM on 25th Aug

Max.at 1:09 AM on 26th Aug

Want air quality data?

AQI Trends - Annual Air Quality Changes
Chico, California, United States

AQI

Year

AQI

AQI	AQI
Mar 2020	28
Apr 2020	27
May 2020	26
Jun 2020	31
Jul 2020	38
Aug 2020	80
Sep 2020	117
Oct 2020	63
Nov 2020	49
Dec 2020	58
Jan 2021	46
Feb 2021	37
Mar 2021	33
Apr 2021	37
May 2021	32
Jun 2021	35
Jul 2021	45
Aug 2021	90
Sep 2021	52
Oct 2021	35
Nov 2021	46
Dec 2021	45
Jan 2022	48
Feb 2022	37
Mar 2022	30
Apr 2022	32
May 2022	31
Jun 2022	30
Jul 2022	34
Aug 2022	40
Sep 2022	41
Oct 2022	42
Nov 2022	44
Dec 2022	49
Jan 2023	34
Feb 2023	41
Mar 2023	33
Apr 2023	34
May 2023	35
Jun 2023	37
Jul 2023	45
Aug 2023	45
Sep 2023	42
Oct 2023	36
Nov 2023	48
Dec 2023	46
Jan 2024	34
Feb 2024	31
Mar 2024	28
Apr 2024	29
May 2024	29
Jun 2024	30
Jul 2024	36
Aug 2024	40
Sep 2024	36
Oct 2024	38
Nov 2024	36
Dec 2024	42
Jan 2025	44
Feb 2025	35
Mar 2025	26
Apr 2025	30
May 2025	28
Jun 2025	36
Jul 2025	35
Aug 2025	40

Annual AQI Trends

2020

55AQI

2021

45AQI

-18%

Fall

2022

38AQI

-16%

Fall

2023

40AQI

Rise

2024

34AQI

-15%

Fall

2025

34AQI

No Change

Overall Annual Percentage (%) change of AQI in (2020 to 2025)

-9%

Fall (Improved AQI)

Most & Least Polluted Months

Most PollutedSeptember, 2020117AQI

Least PollutedMarch, 202526AQI

* This data analysis is from year 2020 - 2025

Chico's Locations
Real-time Air Pollution Level

Location

Status

AQI

PM2.5(µg/m³)

PM10(µg/m³)

Temp.(°C)

Humi.(%)

Chico East Avenue

Good

East Avenue

Good

Air Quality Calendar 2025
Chico

2025

AQI

January

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Dec -	30 Dec -	31 Dec -	1 Jan 67	2 Jan 37	3 Jan 38	4 Jan 25
5 Jan 34	6 Jan 33	7 Jan 25	8 Jan 36	9 Jan 29	10 Jan 35	11 Jan 30
12 Jan 27	13 Jan 28	14 Jan 29	15 Jan 40	16 Jan 41	17 Jan 44	18 Jan 46
19 Jan 49	20 Jan 42	21 Jan 47	22 Jan 46	23 Jan 54	24 Jan 65	25 Jan 49
26 Jan 48	27 Jan 45	28 Jan 65	29 Jan 73	30 Jan 80	31 Jan 62	1 Feb 42

February

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
26 Jan 48	27 Jan 45	28 Jan 65	29 Jan 73	30 Jan 80	31 Jan 62	1 Feb 42
2 Feb 26	3 Feb 24	4 Feb 26	5 Feb 33	6 Feb 47	7 Feb 37	8 Feb 28
9 Feb 29	10 Feb 32	11 Feb 52	12 Feb 48	13 Feb 36	14 Feb 25	15 Feb 33
16 Feb 41	17 Feb 37	18 Feb 41	19 Feb 37	20 Feb 30	21 Feb 33	22 Feb 46
23 Feb 36	24 Feb 43	25 Feb 29	26 Feb 25	27 Feb 25	28 Feb 26	1 Mar 27

March

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
23 Feb 36	24 Feb 43	25 Feb 29	26 Feb 25	27 Feb 25	28 Feb 26	1 Mar 27
2 Mar 26	3 Mar 22	4 Mar 22	5 Mar 27	6 Mar 26	7 Mar 34	8 Mar 39
9 Mar 38	10 Mar 30	11 Mar 35	12 Mar 27	13 Mar 20	14 Mar 18	15 Mar 33
16 Mar 38	17 Mar 16	18 Mar 25	19 Mar 26	20 Mar 17	21 Mar 22	22 Mar 26
23 Mar 20	24 Mar 22	25 Mar 28	26 Mar 24	27 Mar 17	28 Mar 23	29 Mar 19
30 Mar 27	31 Mar 22	1 Apr 17	2 Apr 22	3 Apr 26	4 Apr 27	5 Apr 27

April

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
30 Mar 27	31 Mar 22	1 Apr 17	2 Apr 22	3 Apr 26	4 Apr 27	5 Apr 27
6 Apr 31	7 Apr 14	8 Apr 17	9 Apr 28	10 Apr 33	11 Apr 29	12 Apr 22
13 Apr 26	14 Apr 23	15 Apr 39	16 Apr 39	17 Apr 30	18 Apr 32	19 Apr 29
20 Apr 39	21 Apr 33	22 Apr 31	23 Apr 46	24 Apr 51	25 Apr 33	26 Apr 35
27 Apr 34	28 Apr 25	29 Apr 30	30 Apr 34	1 May 26	2 May 37	3 May 25

May

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Apr 34	28 Apr 25	29 Apr 30	30 Apr 34	1 May 26	2 May 37	3 May 25
4 May 23	5 May 22	6 May 24	7 May 46	8 May 49	9 May 44	10 May 34
11 May 33	12 May 20	13 May 20	14 May 20	15 May 29	16 May 23	17 May 20
18 May 19	19 May 18	20 May 18	21 May 21	22 May 25	23 May 24	24 May 33
25 May 30	26 May 20	27 May 30	28 May 34	29 May 37	30 May 37	31 May 40

June

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
1 Jun 37	2 Jun 40	3 Jun 45	4 Jun 38	5 Jun 42	6 Jun 35	7 Jun 42
8 Jun 33	9 Jun 37	10 Jun 37	11 Jun 43	12 Jun 51	13 Jun 49	14 Jun 37
15 Jun 35	16 Jun 34	17 Jun 37	18 Jun 36	19 Jun 33	20 Jun 43	21 Jun 23
22 Jun 18	23 Jun 20	24 Jun 24	25 Jun 31	26 Jun 33	27 Jun 42	28 Jun 36
29 Jun 39	30 Jun 37	1 Jul 38	2 Jul 36	3 Jul 46	4 Jul 36	5 Jul 50

July

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Jun 39	30 Jun 37	1 Jul 38	2 Jul 36	3 Jul 46	4 Jul 36	5 Jul 50
6 Jul 35	7 Jul 32	8 Jul 31	9 Jul 26	10 Jul 41	11 Jul 65	12 Jul 61
13 Jul 52	14 Jul 50	15 Jul 41	16 Jul 38	17 Jul 32	18 Jul 31	19 Jul 35
20 Jul 29	21 Jul 34	22 Jul 22	23 Jul 21	24 Jul 22	25 Jul 20	26 Jul 21
27 Jul 19	28 Jul 24	29 Jul 29	30 Jul 37	31 Jul 38	1 Aug 42	2 Aug 43

August

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Jul 19	28 Jul 24	29 Jul 29	30 Jul 37	31 Jul 38	1 Aug 42	2 Aug 43
3 Aug 45	4 Aug 47	5 Aug 47	6 Aug 44	7 Aug 33	8 Aug 43	9 Aug 43
10 Aug 40	11 Aug 44	12 Aug 47	13 Aug 41	14 Aug 31	15 Aug 42	16 Aug 25
17 Aug 19	18 Aug 23	19 Aug 36	20 Aug 32	21 Aug 38	22 Aug 45	23 Aug 56
24 Aug 47	25 Aug 39	26 Aug -	27 Aug -	28 Aug -	29 Aug -	30 Aug -
31 Aug -	1 Sep -	2 Sep -	3 Sep -	4 Sep -	5 Sep -	6 Sep -

Air Quality Solutions For Chico
Explore the solutions of air quality monitoring & clean air.

Here are some applications that you can go through to find out the solutions.

Air Quality Monitor

Monitor the air quality

Air Quality Sensors

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Fresh Air Machine

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Car Cabin Filter

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N95 Mask

Shield yourself from pollution

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Chico's AQI Data Analytics Solutions
Air quality data monitoring platforms

Mobile App

Smart TV App

Web Dashboard

API

Widgets

Mobile App

Empower Your Decisions with Reliable Data

Get it onApp Store

Get it onGoogle Play

Your area’s real-time data with detailed parameters.

Personalized health advice as per current AQI.

Analytical data to identify trends and conditions.

Connect and control your air quality devices.

Air Quality FAQs
at Chico

Frequently Asked Questions About Air Quality

What is the current AQI level in Chico?

The current real-time AQI level in Chico is 43 (Good). This was last updated 2025-08-26 12:10:31 PM (Local Time).

When was the best AQI level in Chico in the last 24 hours?

The best AQI level was 29 (Good) at 12:24 PM, Aug 25, 2025 (Local Time) during the last 24 hours.

When was the worst AQI level in Chico in the last 24 hours?

The worst AQI level was 48 (Good) at 1:09 AM (Local Time) during the last 24 hours.

What is the current trend of AQI levels in Chico during last 24 hours?

The AQI levels in Chico have been fluctuating throughout the last 24 hours. The levels have increased by highest 48 at 1:09 AM (Local Time), lowest 29 at 12:24 PM, Aug 25, 2025 (Local Time).

What actions are recommended as per the current AQI level in Chico?

The air quality is satisfactory, and air pollution poses little or no risk. No special precautions are needed; enjoy outdoor activities freely.