Lompoc South H Street, Lompoc, 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
Lompoc South H Street, Lompoc, 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 1st highest AQI at 48 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 18th Oct - 19th Oct 2025
Lompoc South H Street, Lompoc, California, United States
7 AM18th Oct 2025
6 PM
6 AM19th Oct 2025
59AQI
18AQI
57AQI
46AQI
In the last 24 hours,
Lompoc South H Street's AQI reached its highest point of 59 at 4 PM during the Day, while the lowest point, 18, was recorded at 6 PM during the Day between 18th Oct and 19th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Lompoc South H Street, Lompoc, California, United States
--°C/°C
18°C13/27°C
18°C14/23°C
20°C16/30°C
21°C16/32°C
20°C16/30°C
19°C17/29°C
18°C15/25°C
18°C15/24°C
20°C17/25°C
19°C15/25°C
19°C12/25°C
20°C16/25°C
18°C13/25°C
18°C12/25°C
17°C11/26°C
18°C13/26°C
17°C12/23°C
17°C14/23°C
17°C12/24°C
17°C10/25°C
17°C11/25°C
18°C13/26°C
19°C13/29°C
16°C10/23°C
14°C11/19°C
14°C8/22°C
16°C10/25°C
19°C10/31°C
17°C10/31°C
13°C7/27°C
43AQI
39AQI
46AQI
42AQI
2025 Days Vs Air Quality
Lompoc South H Street, Lompoc, California, United States
90%
263
10%
28
Total number of days with different AQI categories in last 293 days in 2025 (72 days remaining)
Under WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2025, 90% of 293 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
Lompoc South H Street, Lompoc, California, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
43AQI
34AQI
33AQI
27AQI
30AQI
29AQI
26AQI
38AQI
41AQI
36AQI
35AQI
29AQI
34AQI
32AQI
32AQI
33AQI
32AQI
36AQI
45AQI
39AQI
36AQI
41AQI
35AQI
36AQI
39AQI
29AQI
23AQI
29AQI
33AQI
33AQI
33AQI
27AQI
23AQI
24AQI
22AQI
22AQI
23AQI
26AQI
25AQI
28AQI
29AQI
36AQI
24AQI
24AQI
40AQI
41AQI
31AQI
37AQI
35AQI
30AQI
27AQI
28AQI
34AQI
38AQI
31AQI
33AQI
40AQI
41AQI
40AQI
34AQI
38AQI
30AQI
28AQI
22AQI
27AQI
33AQI
32AQI
28AQI
27AQI
28AQI
28AQI
22AQI
26AQI
45AQI
48AQI
32AQI
36AQI
28AQI
24AQI
35AQI
37AQI
37AQI
36AQI
30AQI
25AQI
21AQI
39AQI
36AQI
21AQI
17AQI
25AQI
31AQI
31AQI
33AQI
27AQI
27AQI
25AQI
23AQI
38AQI
34AQI
35AQI
53AQI
50AQI
30AQI
35AQI
35AQI
26AQI
27AQI
27AQI
44AQI
39AQI
34AQI
40AQI
44AQI
28AQI
18AQI
19AQI
34AQI
36AQI
23AQI
22AQI
27AQI
35AQI
48AQI
50AQI
50AQI
45AQI
40AQI
36AQI
52AQI
45AQI
31AQI
28AQI
40AQI
50AQI
45AQI
30AQI
40AQI
53AQI
47AQI
55AQI
54AQI
44AQI
40AQI
31AQI
29AQI
23AQI
25AQI
33AQI
28AQI
24AQI
25AQI
32AQI
32AQI
36AQI
27AQI
24AQI
29AQI
21AQI
21AQI
23AQI
39AQI
51AQI
55AQI
56AQI
53AQI
55AQI
52AQI
46AQI
48AQI
52AQI
58AQI
60AQI
50AQI
30AQI
25AQI
23AQI
24AQI
25AQI
26AQI
22AQI
25AQI
23AQI
26AQI
28AQI
46AQI
37AQI
29AQI
24AQI
21AQI
24AQI
26AQI
30AQI
24AQI
20AQI
18AQI
19AQI
18AQI
19AQI
22AQI
22AQI
18AQI
15AQI
15AQI
15AQI
16AQI
16AQI
16AQI
18AQI
23AQI
32AQI
27AQI
22AQI
30AQI
33AQI
56AQI
54AQI
46AQI
36AQI
32AQI
33AQI
32AQI
33AQI
36AQI
29AQI
22AQI
24AQI
21AQI
22AQI
36AQI
41AQI
48AQI
55AQI
60AQI
39AQI
33AQI
38AQI
44AQI
43AQI
41AQI
36AQI
38AQI
47AQI
51AQI
42AQI
37AQI
29AQI
28AQI
30AQI
31AQI
20AQI
21AQI
22AQI
33AQI
43AQI
48AQI
38AQI
35AQI
27AQI
23AQI
31AQI
39AQI
39AQI
37AQI
34AQI
33AQI
40AQI
29AQI
33AQI
37AQI
32AQI
34AQI
43AQI
36AQI
21AQI
46AQI
58AQI
58AQI
58AQI
53AQI
55AQI
52AQI
50AQI
53AQI
60AQI
59AQI
41AQI
41AQI
39AQI
43AQI
48AQI
34AQI
31AQI
31AQI
32AQI
39AQI
37AQI
23AQI
37AQI
34AQI
48AQI
No. of days
202534AQI
Highest AQI recorded in
October48AQI
Lowest AQI recorded in
July23AQI
202427AQI
Highest AQI recorded in
May33AQI
Lowest AQI recorded in
July21AQI
202329AQI
Highest AQI recorded in
September40AQI
Lowest AQI recorded in
December24AQI
202230AQI
Highest AQI recorded in
May40AQI
Lowest AQI recorded in
December24AQI
202126AQI
Highest AQI recorded in
September32AQI
Lowest AQI recorded in
June20AQI
202032AQI
Highest AQI recorded in
September51AQI
Lowest AQI recorded in
April18AQI
Most & Least Polluted Years Over the Last 6 Years
Lompoc South H Street's annual 2025 AQI (34) shows an average percentage change of 18.6% (worsened AQI) compared to previous years: 2020 (32), 2021 (26), 2022 (30), 2023 (29), 2024 (27).