Olancha, California, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Olancha, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (3rd October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 20 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Oct - 3rd Oct 2025
Olancha, California, United States
6 AM2nd Oct 2025
6 PM
5 AM3rd Oct 2025
32AQI
12AQI
41AQI
11AQI
In the last 24 hours,
Olancha's AQI reached its highest point of 41 at 3 AM during the Night, while the lowest point, 11, was recorded at 1 AM during the Night between 2nd Oct and 3rd Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Olancha, California, United States
--°C/°C
21°C11/30°C
20°C11/31°C
20°C9/32°C
18°C7/33°C
18°C7/32°C
17°C6/30°C
15°C5/27°C
13°C4/23°C
13°C4/24°C
16°C6/28°C
18°C9/30°C
19°C9/31°C
20°C10/32°C
21°C11/32°C
18°C13/24°C
18°C14/22°C
17°C9/26°C
20°C10/30°C
23°C15/32°C
24°C16/33°C
25°C17/33°C
24°C19/30°C
24°C16/31°C
21°C16/29°C
21°C16/27°C
22°C16/27°C
22°C17/29°C
20°C13/27°C
22°C14/28°C
20°C14/25°C
34AQI
27AQI
31AQI
29AQI
2025 Days Vs Air Quality
Olancha, California, United States
98%
188
2%
4
Total number of days with different AQI categories in last 277 days in 2025 (88 days remaining)
Under WHO’s Safe Air Quality Limits: 98%
Health Risk Level:
Very Low
In 2025, 98% of 277 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Olancha, California, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
29AQI
24AQI
24AQI
28AQI
24AQI
29AQI
21AQI
20AQI
19AQI
21AQI
17AQI
18AQI
22AQI
24AQI
29AQI
35AQI
34AQI
28AQI
38AQI
31AQI
26AQI
32AQI
33AQI
31AQI
24AQI
24AQI
23AQI
24AQI
30AQI
30AQI
34AQI
24AQI
17AQI
23AQI
28AQI
26AQI
23AQI
26AQI
30AQI
25AQI
25AQI
30AQI
18AQI
27AQI
29AQI
27AQI
25AQI
39AQI
46AQI
30AQI
21AQI
20AQI
31AQI
21AQI
24AQI
24AQI
36AQI
34AQI
31AQI
34AQI
31AQI
30AQI
30AQI
36AQI
33AQI
31AQI
34AQI
32AQI
35AQI
28AQI
40AQI
37AQI
35AQI
33AQI
36AQI
40AQI
39AQI
36AQI
33AQI
35AQI
30AQI
30AQI
29AQI
30AQI
30AQI
40AQI
42AQI
38AQI
38AQI
37AQI
39AQI
42AQI
41AQI
42AQI
40AQI
37AQI
31AQI
29AQI
27AQI
39AQI
45AQI
43AQI
34AQI
28AQI
25AQI
31AQI
35AQI
41AQI
46AQI
49AQI
52AQI
52AQI
47AQI
45AQI
43AQI
41AQI
38AQI
30AQI
30AQI
24AQI
23AQI
21AQI
28AQI
27AQI
27AQI
26AQI
25AQI
24AQI
25AQI
31AQI
36AQI
30AQI
30AQI
36AQI
36AQI
35AQI
47AQI
52AQI
47AQI
40AQI
41AQI
39AQI
38AQI
37AQI
27AQI
26AQI
25AQI
28AQI
27AQI
34AQI
42AQI
40AQI
36AQI
35AQI
33AQI
35AQI
39AQI
48AQI
46AQI
36AQI
35AQI
34AQI
39AQI
52AQI
43AQI
34AQI
40AQI
34AQI
28AQI
27AQI
30AQI
31AQI
38AQI
33AQI
30AQI
26AQI
27AQI
24AQI
25AQI
26AQI
25AQI
24AQI
23AQI
33AQI
32AQI
26AQI
22AQI
26AQI
21AQI
26AQI
20AQI
20AQI
26AQI
26AQI
29AQI
36AQI
35AQI
36AQI
31AQI
22AQI
No. of days
202532AQI
Highest AQI recorded in
August36AQI
Lowest AQI recorded in
October22AQI
Most & Least Polluted Years Over the Last 1 Years
Olancha's annual 2025 AQI (32) shows an average percentage change of NaN% (improved AQI) compared to previous years: .