Westmorland, Brawley, 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
Westmorland, Brawley, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (17th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 32 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 17th Oct - 18th Oct 2025
Westmorland, Brawley, California, United States
6 AM17th Oct 2025
6 PM
5 AM18th Oct 2025
53AQI
12AQI
58AQI
18AQI
In the last 24 hours,
Westmorland's AQI reached its highest point of 58 at 4 AM during the Night, while the lowest point, 12, was recorded at 5 PM during the Day between 17th Oct and 18th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Westmorland, Brawley, California, United States
31°C27/37°C
29°C23/36°C
30°C22/39°C
31°C26/38°C
29°C24/36°C
31°C22/39°C
34°C25/42°C
34°C27/42°C
30°C24/36°C
28°C23/33°C
28°C22/35°C
29°C22/38°C
30°C24/38°C
28°C20/37°C
29°C19/38°C
29°C22/37°C
25°C18/33°C
25°C16/35°C
25°C16/35°C
27°C16/37°C
27°C17/37°C
27°C21/37°C
27°C23/33°C
27°C22/35°C
27°C18/35°C
24°C19/32°C
22°C16/28°C
22°C17/27°C
22°C13/30°C
23°C13/32°C
--°C/°C
46AQI
35AQI
57AQI
33AQI
2025 Days Vs Air Quality
Westmorland, Brawley, California, United States
52%
152
46%
133
1%
3
0.6%
2
Total number of days with different AQI categories in last 291 days in 2025 (74 days remaining)
Under WHO’s Safe Air Quality Limits: 52%
Health Risk Level:
Considerable
In 2025, 52% of 291 days were within WHO’s safe air quality limits, and 48% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
Westmorland, Brawley, California, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
66AQI
58AQI
62AQI
60AQI
57AQI
58AQI
71AQI
90AQI
59AQI
56AQI
56AQI
50AQI
47AQI
44AQI
43AQI
44AQI
46AQI
48AQI
50AQI
54AQI
45AQI
50AQI
48AQI
57AQI
57AQI
60AQI
51AQI
53AQI
51AQI
53AQI
54AQI
58AQI
58AQI
58AQI
59AQI
55AQI
58AQI
51AQI
49AQI
46AQI
55AQI
79AQI
57AQI
52AQI
48AQI
48AQI
43AQI
47AQI
42AQI
43AQI
45AQI
42AQI
43AQI
45AQI
49AQI
50AQI
49AQI
51AQI
49AQI
70AQI
86AQI
63AQI
55AQI
56AQI
74AQI
47AQI
50AQI
42AQI
43AQI
40AQI
38AQI
46AQI
35AQI
43AQI
40AQI
43AQI
41AQI
40AQI
36AQI
37AQI
43AQI
38AQI
42AQI
36AQI
47AQI
60AQI
53AQI
48AQI
52AQI
46AQI
67AQI
58AQI
51AQI
46AQI
40AQI
35AQI
36AQI
40AQI
42AQI
44AQI
42AQI
39AQI
38AQI
39AQI
39AQI
78AQI
66AQI
72AQI
32AQI
35AQI
30AQI
38AQI
37AQI
44AQI
104AQI
95AQI
46AQI
42AQI
44AQI
43AQI
47AQI
46AQI
56AQI
121AQI
36AQI
46AQI
32AQI
38AQI
37AQI
39AQI
45AQI
55AQI
101AQI
202AQI
68AQI
60AQI
237AQI
87AQI
63AQI
59AQI
57AQI
59AQI
60AQI
60AQI
53AQI
55AQI
53AQI
55AQI
54AQI
56AQI
53AQI
58AQI
47AQI
52AQI
45AQI
46AQI
45AQI
48AQI
48AQI
48AQI
53AQI
55AQI
56AQI
55AQI
54AQI
53AQI
54AQI
57AQI
60AQI
62AQI
73AQI
66AQI
62AQI
66AQI
66AQI
66AQI
65AQI
63AQI
57AQI
53AQI
51AQI
52AQI
55AQI
55AQI
55AQI
64AQI
55AQI
59AQI
54AQI
53AQI
56AQI
56AQI
54AQI
53AQI
53AQI
55AQI
50AQI
38AQI
37AQI
43AQI
44AQI
44AQI
45AQI
53AQI
47AQI
37AQI
27AQI
23AQI
22AQI
22AQI
23AQI
31AQI
36AQI
33AQI
47AQI
67AQI
90AQI
59AQI
58AQI
55AQI
53AQI
82AQI
58AQI
68AQI
62AQI
61AQI
57AQI
41AQI
34AQI
35AQI
38AQI
40AQI
51AQI
55AQI
56AQI
55AQI
50AQI
45AQI
51AQI
73AQI
26AQI
30AQI
34AQI
45AQI
40AQI
27AQI
44AQI
84AQI
24AQI
24AQI
31AQI
44AQI
52AQI
54AQI
28AQI
31AQI
41AQI
42AQI
47AQI
45AQI
38AQI
29AQI
24AQI
22AQI
24AQI
25AQI
26AQI
40AQI
37AQI
18AQI
27AQI
33AQI
32AQI
42AQI
49AQI
89AQI
60AQI
45AQI
35AQI
52AQI
60AQI
59AQI
46AQI
45AQI
38AQI
95AQI
85AQI
38AQI
30AQI
32AQI
55AQI
51AQI
48AQI
49AQI
67AQI
56AQI
46AQI
52AQI
36AQI
53AQI
No. of days
202551AQI
Highest AQI recorded in
May67AQI
Lowest AQI recorded in
September36AQI
202443AQI
Highest AQI recorded in
December60AQI
Lowest AQI recorded in
January25AQI
202364AQI
Highest AQI recorded in
June140AQI
Lowest AQI recorded in
December25AQI
202240AQI
Highest AQI recorded in
August65AQI
Lowest AQI recorded in
January25AQI
202141AQI
Highest AQI recorded in
June56AQI
Lowest AQI recorded in
December31AQI
202042AQI
Highest AQI recorded in
October51AQI
Lowest AQI recorded in
December36AQI
Most & Least Polluted Years Over the Last 6 Years
Westmorland's annual 2025 AQI (51) shows an average percentage change of 14.7% (worsened AQI) compared to previous years: 2020 (42), 2021 (41), 2022 (40), 2023 (64), 2024 (43).