Salinas, 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
Salinas, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (18th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 37 of Good air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 18th Oct - 19th Oct 2025
Salinas, California, United States
7 AM18th Oct 2025
6 PM
6 AM19th Oct 2025
40AQI
15AQI
40AQI
6AQI
In the last 24 hours,
Salinas's AQI reached its highest point of 40 at 8 AM during the Day, while the lowest point, undefined, was recorded at 6 AM during the Night between 18th Oct and 19th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Salinas, California, United States
19°C15/26°C
18°C14/24°C
18°C14/24°C
18°C13/28°C
20°C12/37°C
21°C16/30°C
20°C16/30°C
19°C15/29°C
18°C14/22°C
20°C17/24°C
19°C17/23°C
19°C14/27°C
20°C15/29°C
18°C15/22°C
17°C13/21°C
17°C13/25°C
18°C12/30°C
18°C10/29°C
17°C12/26°C
17°C12/24°C
18°C13/25°C
18°C13/25°C
17°C11/24°C
15°C9/25°C
15°C11/21°C
12°C9/18°C
13°C8/19°C
14°C8/22°C
16°C9/29°C
17°C11/31°C
--°C/°C
36AQI
26AQI
36AQI
29AQI
2025 Days Vs Air Quality
Salinas, California, United States
99%
287
1%
4
Total number of days with different AQI categories in last 292 days in 2025 (73 days remaining)
Under WHO’s Safe Air Quality Limits: 99%
Health Risk Level:
Very Low
In 2025, 99% of 292 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
Salinas, California, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
47AQI
31AQI
32AQI
25AQI
27AQI
28AQI
25AQI
26AQI
23AQI
34AQI
35AQI
25AQI
29AQI
28AQI
29AQI
38AQI
40AQI
47AQI
44AQI
35AQI
33AQI
37AQI
35AQI
43AQI
41AQI
33AQI
27AQI
31AQI
32AQI
35AQI
36AQI
37AQI
26AQI
24AQI
23AQI
27AQI
24AQI
27AQI
23AQI
29AQI
32AQI
28AQI
25AQI
26AQI
30AQI
30AQI
27AQI
25AQI
26AQI
26AQI
25AQI
25AQI
33AQI
29AQI
24AQI
25AQI
30AQI
32AQI
34AQI
31AQI
29AQI
22AQI
22AQI
23AQI
28AQI
26AQI
28AQI
31AQI
26AQI
27AQI
27AQI
21AQI
24AQI
41AQI
41AQI
24AQI
24AQI
20AQI
20AQI
24AQI
25AQI
27AQI
21AQI
30AQI
24AQI
20AQI
32AQI
24AQI
20AQI
21AQI
20AQI
24AQI
22AQI
26AQI
29AQI
25AQI
20AQI
18AQI
29AQI
26AQI
22AQI
41AQI
40AQI
35AQI
31AQI
38AQI
30AQI
25AQI
30AQI
33AQI
39AQI
33AQI
47AQI
38AQI
27AQI
18AQI
25AQI
36AQI
32AQI
37AQI
31AQI
32AQI
27AQI
46AQI
48AQI
51AQI
49AQI
45AQI
38AQI
43AQI
33AQI
22AQI
22AQI
39AQI
39AQI
47AQI
27AQI
37AQI
46AQI
33AQI
47AQI
40AQI
28AQI
32AQI
24AQI
20AQI
27AQI
31AQI
22AQI
31AQI
44AQI
51AQI
51AQI
40AQI
48AQI
37AQI
25AQI
26AQI
24AQI
20AQI
26AQI
40AQI
49AQI
48AQI
45AQI
45AQI
43AQI
35AQI
35AQI
45AQI
44AQI
41AQI
39AQI
36AQI
23AQI
24AQI
23AQI
31AQI
31AQI
27AQI
24AQI
27AQI
22AQI
32AQI
34AQI
35AQI
33AQI
24AQI
20AQI
19AQI
25AQI
29AQI
30AQI
25AQI
19AQI
20AQI
20AQI
19AQI
20AQI
23AQI
23AQI
24AQI
17AQI
16AQI
16AQI
16AQI
15AQI
16AQI
20AQI
27AQI
24AQI
25AQI
23AQI
23AQI
31AQI
38AQI
31AQI
36AQI
26AQI
28AQI
37AQI
33AQI
32AQI
32AQI
27AQI
21AQI
36AQI
18AQI
16AQI
22AQI
27AQI
33AQI
48AQI
51AQI
38AQI
36AQI
36AQI
39AQI
41AQI
40AQI
30AQI
39AQI
48AQI
46AQI
45AQI
38AQI
30AQI
30AQI
28AQI
27AQI
21AQI
18AQI
18AQI
27AQI
34AQI
35AQI
25AQI
22AQI
30AQI
35AQI
38AQI
45AQI
39AQI
35AQI
33AQI
44AQI
47AQI
39AQI
45AQI
48AQI
30AQI
25AQI
29AQI
17AQI
18AQI
20AQI
35AQI
26AQI
30AQI
28AQI
38AQI
24AQI
26AQI
33AQI
32AQI
35AQI
27AQI
13AQI
29AQI
23AQI
37AQI
33AQI
28AQI
26AQI
30AQI
36AQI
36AQI
23AQI
33AQI
34AQI
27AQI
No. of days
202531AQI
Highest AQI recorded in
June36AQI
Lowest AQI recorded in
July23AQI
202431AQI
Highest AQI recorded in
May38AQI
Lowest AQI recorded in
January24AQI
202335AQI
Highest AQI recorded in
September46AQI
Lowest AQI recorded in
January28AQI
202229AQI
Highest AQI recorded in
April34AQI
Lowest AQI recorded in
July22AQI
202128AQI
Highest AQI recorded in
January33AQI
Lowest AQI recorded in
July23AQI
202033AQI
Highest AQI recorded in
September59AQI
Lowest AQI recorded in
June23AQI
Most & Least Polluted Years Over the Last 6 Years
Salinas's annual 2025 AQI (31) shows an average percentage change of -1.5% (improved AQI) compared to previous years: 2020 (33), 2021 (28), 2022 (29), 2023 (35), 2024 (31).