West Valley City, Utah, 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
West Valley City, Utah, United States
AQI Trends: Highest and Lowest
Same Day Analysis (19th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 39 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 19th Oct - 20th Oct 2025
West Valley City, Utah, United States
7 AM19th Oct 2025
7 PM
6 AM20th Oct 2025
45AQI
19AQI
30AQI
14AQI
In the last 24 hours,
West Valley City's AQI reached its highest point of 45 at 7 AM during the Day, while the lowest point, 14, was recorded at 9 PM during the Night between 19th Oct and 20th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
West Valley City, Utah, United States
19°C12/26°C
22°C15/31°C
18°C13/25°C
17°C10/26°C
20°C12/29°C
22°C11/33°C
24°C18/31°C
21°C12/31°C
22°C17/30°C
22°C16/29°C
17°C12/20°C
18°C11/27°C
22°C15/32°C
22°C17/31°C
12°C8/13°C
11°C7/16°C
10°C5/16°C
12°C4/20°C
15°C6/25°C
21°C14/32°C
20°C15/27°C
18°C6/26°C
10°C5/16°C
14°C6/25°C
16°C10/25°C
12°C9/17°C
9°C5/14°C
10°C4/18°C
13°C7/20°C
16°C9/28°C
--°C/°C
37AQI
24AQI
34AQI
24AQI
2025 Days Vs Air Quality
West Valley City, Utah, United States
86%
179
14%
29
Total number of days with different AQI categories in last 293 days in 2025 (72 days remaining)
Under WHO’s Safe Air Quality Limits: 86%
Health Risk Level:
Low
In 2025, 86% of 293 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
West Valley City, Utah, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
38AQI
35AQI
59AQI
67AQI
49AQI
33AQI
26AQI
22AQI
22AQI
23AQI
22AQI
24AQI
27AQI
30AQI
48AQI
57AQI
54AQI
44AQI
34AQI
34AQI
43AQI
41AQI
28AQI
21AQI
19AQI
24AQI
24AQI
32AQI
41AQI
33AQI
31AQI
29AQI
34AQI
22AQI
28AQI
24AQI
27AQI
34AQI
35AQI
29AQI
28AQI
18AQI
19AQI
25AQI
30AQI
35AQI
34AQI
46AQI
49AQI
43AQI
20AQI
25AQI
30AQI
22AQI
24AQI
23AQI
26AQI
37AQI
37AQI
32AQI
31AQI
29AQI
38AQI
39AQI
46AQI
48AQI
46AQI
45AQI
40AQI
26AQI
30AQI
41AQI
44AQI
48AQI
40AQI
38AQI
40AQI
45AQI
51AQI
49AQI
51AQI
44AQI
48AQI
40AQI
46AQI
49AQI
43AQI
62AQI
52AQI
34AQI
29AQI
46AQI
45AQI
57AQI
50AQI
39AQI
38AQI
52AQI
50AQI
47AQI
42AQI
60AQI
53AQI
51AQI
43AQI
39AQI
45AQI
43AQI
37AQI
42AQI
41AQI
53AQI
55AQI
56AQI
52AQI
43AQI
47AQI
33AQI
31AQI
38AQI
45AQI
48AQI
36AQI
27AQI
38AQI
37AQI
45AQI
42AQI
47AQI
51AQI
41AQI
55AQI
59AQI
50AQI
38AQI
40AQI
31AQI
30AQI
34AQI
40AQI
47AQI
58AQI
53AQI
43AQI
27AQI
30AQI
34AQI
47AQI
49AQI
44AQI
40AQI
28AQI
30AQI
42AQI
42AQI
56AQI
61AQI
55AQI
52AQI
50AQI
48AQI
52AQI
42AQI
40AQI
44AQI
38AQI
30AQI
30AQI
27AQI
32AQI
40AQI
31AQI
27AQI
35AQI
31AQI
36AQI
46AQI
43AQI
27AQI
27AQI
26AQI
24AQI
25AQI
39AQI
33AQI
27AQI
18AQI
21AQI
18AQI
27AQI
37AQI
34AQI
27AQI
35AQI
50AQI
53AQI
61AQI
36AQI
21AQI
24AQI
18AQI
34AQI
26AQI
29AQI
27AQI
34AQI
39AQI
39AQI
47AQI
31AQI
32AQI
44AQI
44AQI
44AQI
34AQI
34AQI
No. of days
202538AQI
Highest AQI recorded in
March47AQI
Lowest AQI recorded in
April31AQI
Most & Least Polluted Years Over the Last 1 Years
West Valley City's annual 2025 AQI (38) shows an average percentage change of NaN% (improved AQI) compared to previous years: .