Nipomo, California, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
July Air Quality Analysis
Nipomo, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (2nd July ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 28 of Good air quality, showing improvement over 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025
Nipomo, California, United States
5 AM2nd Jul 2025
8 PM
4 AM3rd Jul 2025
45AQI
18AQI
25AQI
23AQI
In the last 24 hours,
Nipomo's AQI reached its highest point of 45 at 7 AM during the Day, while the lowest point, 18, was recorded at 5 AM during the Day between 2nd Jul and 3rd Jul 2025.
Day & Night AQI Trend : Jun - Jul 2025
Nipomo, California, United States
15°C12/19°C
15°C11/21°C
15°C11/21°C
16°C13/21°C
15°C12/20°C
15°C13/19°C
15°C13/20°C
16°C13/21°C
16°C13/22°C
17°C13/23°C
18°C13/24°C
17°C11/22°C
18°C12/24°C
18°C12/24°C
19°C13/29°C
19°C13/30°C
15°C12/20°C
16°C10/22°C
17°C11/24°C
17°C11/24°C
14°C9/19°C
14°C10/19°C
15°C11/21°C
15°C11/21°C
15°C10/21°C
15°C12/21°C
17°C12/22°C
16°C12/21°C
16°C11/21°C
16°C11/21°C
0°C0/0°C
39AQI
33AQI
41AQI
33AQI
2025 Days Vs Air Quality
Nipomo, California, United States
94%
172
6%
11
Total number of days with different AQI categories in last 184 days in 2025 (181 days remaining)
Under WHO’s Safe Air Quality Limits: 94%
Health Risk Level:
Very Low
In 2025, 94% of 184 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
Nipomo, California, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
41AQI
38AQI
36AQI
26AQI
25AQI
38AQI
36AQI
45AQI
41AQI
35AQI
34AQI
27AQI
31AQI
32AQI
35AQI
32AQI
32AQI
39AQI
49AQI
45AQI
40AQI
40AQI
39AQI
36AQI
44AQI
33AQI
26AQI
33AQI
33AQI
37AQI
35AQI
32AQI
24AQI
28AQI
27AQI
23AQI
26AQI
27AQI
23AQI
38AQI
39AQI
35AQI
24AQI
24AQI
42AQI
42AQI
36AQI
45AQI
37AQI
37AQI
23AQI
30AQI
42AQI
47AQI
41AQI
39AQI
45AQI
44AQI
44AQI
39AQI
36AQI
41AQI
28AQI
26AQI
26AQI
36AQI
32AQI
28AQI
28AQI
31AQI
32AQI
22AQI
30AQI
52AQI
48AQI
35AQI
44AQI
32AQI
37AQI
46AQI
49AQI
41AQI
46AQI
40AQI
26AQI
23AQI
44AQI
38AQI
26AQI
20AQI
28AQI
37AQI
39AQI
38AQI
35AQI
33AQI
39AQI
29AQI
44AQI
41AQI
47AQI
56AQI
49AQI
35AQI
48AQI
44AQI
37AQI
36AQI
38AQI
37AQI
40AQI
40AQI
43AQI
48AQI
37AQI
22AQI
24AQI
41AQI
37AQI
25AQI
21AQI
32AQI
44AQI
50AQI
50AQI
49AQI
50AQI
48AQI
42AQI
54AQI
52AQI
32AQI
36AQI
43AQI
46AQI
41AQI
33AQI
36AQI
55AQI
54AQI
53AQI
59AQI
46AQI
40AQI
41AQI
40AQI
29AQI
36AQI
40AQI
32AQI
28AQI
27AQI
38AQI
34AQI
41AQI
29AQI
28AQI
36AQI
27AQI
26AQI
33AQI
46AQI
52AQI
47AQI
46AQI
45AQI
50AQI
50AQI
49AQI
49AQI
51AQI
49AQI
51AQI
43AQI
29AQI
29AQI
26AQI
28AQI
30AQI
27AQI
25AQI
27AQI
28AQI
36AQI
34AQI
35AQI
38AQI
42AQI
38AQI
28AQI
No. of days
202537AQI
Highest AQI recorded in
May42AQI
Lowest AQI recorded in
July28AQI
202427AQI
Highest AQI recorded in
December34AQI
Lowest AQI recorded in
February15AQI
202347AQI
Highest AQI recorded in
October125AQI
Lowest AQI recorded in
May17AQI
202230AQI
Highest AQI recorded in
May43AQI
Lowest AQI recorded in
December18AQI
202128AQI
Highest AQI recorded in
May36AQI
Lowest AQI recorded in
December18AQI
202037AQI
Highest AQI recorded in
September55AQI
Lowest AQI recorded in
March23AQI
Most & Least Polluted Years Over the Last 6 Years
Nipomo's annual 2025 AQI (37) shows an average percentage change of 14.9% (worsened AQI) compared to previous years: 2020 (37), 2021 (28), 2022 (30), 2023 (47), 2024 (27).