Visalia, California, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Visalia, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (13th August ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 2nd highest AQI at 52 of Moderate air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 13th Aug - 14th Aug 2025
Visalia, California, United States
6 AM13th Aug 2025
8 PM
5 AM14th Aug 2025
57AQI
46AQI
52AQI
39AQI
In the last 24 hours,
Visalia's AQI reached its highest point of 57 at 6 PM during the Day, while the lowest point, undefined, was recorded at 5 AM during the Night between 13th Aug and 14th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Visalia, California, United States
30°C17/45°C
28°C16/42°C
28°C14/42°C
28°C15/41°C
29°C15/43°C
29°C16/43°C
27°C14/40°C
25°C14/37°C
24°C12/37°C
25°C12/38°C
25°C12/37°C
25°C13/38°C
26°C12/39°C
27°C13/41°C
28°C15/41°C
28°C15/41°C
28°C13/43°C
29°C15/43°C
28°C15/42°C
28°C14/42°C
26°C13/39°C
27°C14/40°C
28°C15/43°C
30°C17/44°C
31°C17/45°C
32°C19/46°C
32°C18/46°C
31°C17/46°C
31°C17/45°C
30°C16/44°C
--°C/°C
40AQI
35AQI
40AQI
36AQI
2025 Days Vs Air Quality
Visalia, California, United States
84%
189
16%
36
Total number of days with different AQI categories in last 226 days in 2025 (139 days remaining)
Under WHO’s Safe Air Quality Limits: 84%
Health Risk Level:
Low
In 2025, 84% of 226 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
Visalia, California, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
79AQI
73AQI
54AQI
28AQI
35AQI
39AQI
48AQI
50AQI
50AQI
50AQI
50AQI
49AQI
41AQI
43AQI
49AQI
47AQI
58AQI
60AQI
62AQI
65AQI
61AQI
62AQI
70AQI
66AQI
52AQI
29AQI
27AQI
34AQI
45AQI
56AQI
62AQI
61AQI
37AQI
28AQI
24AQI
23AQI
24AQI
23AQI
24AQI
30AQI
27AQI
33AQI
26AQI
23AQI
26AQI
29AQI
38AQI
33AQI
28AQI
33AQI
28AQI
37AQI
43AQI
42AQI
41AQI
27AQI
39AQI
42AQI
38AQI
32AQI
28AQI
23AQI
27AQI
26AQI
24AQI
24AQI
28AQI
29AQI
26AQI
26AQI
26AQI
20AQI
19AQI
26AQI
31AQI
21AQI
16AQI
21AQI
20AQI
21AQI
22AQI
26AQI
34AQI
50AQI
28AQI
25AQI
24AQI
23AQI
26AQI
18AQI
17AQI
18AQI
20AQI
28AQI
30AQI
32AQI
34AQI
20AQI
28AQI
44AQI
33AQI
31AQI
34AQI
45AQI
41AQI
46AQI
38AQI
40AQI
48AQI
46AQI
46AQI
38AQI
35AQI
45AQI
36AQI
23AQI
20AQI
25AQI
45AQI
50AQI
44AQI
45AQI
27AQI
34AQI
44AQI
47AQI
43AQI
52AQI
52AQI
51AQI
31AQI
27AQI
25AQI
26AQI
34AQI
39AQI
37AQI
26AQI
42AQI
32AQI
42AQI
44AQI
29AQI
30AQI
34AQI
24AQI
27AQI
44AQI
35AQI
51AQI
59AQI
44AQI
45AQI
47AQI
53AQI
52AQI
48AQI
51AQI
38AQI
44AQI
48AQI
43AQI
48AQI
44AQI
38AQI
36AQI
40AQI
41AQI
49AQI
53AQI
46AQI
39AQI
36AQI
32AQI
41AQI
44AQI
47AQI
50AQI
50AQI
41AQI
38AQI
41AQI
43AQI
51AQI
35AQI
52AQI
41AQI
47AQI
43AQI
40AQI
45AQI
56AQI
57AQI
54AQI
54AQI
53AQI
44AQI
43AQI
39AQI
45AQI
40AQI
31AQI
22AQI
25AQI
26AQI
25AQI
26AQI
24AQI
29AQI
37AQI
36AQI
36AQI
45AQI
39AQI
32AQI
40AQI
36AQI
41AQI
40AQI
40AQI
52AQI
55AQI
54AQI
54AQI
52AQI
51AQI
32AQI
25AQI
35AQI
38AQI
44AQI
40AQI
45AQI
No. of days
202538AQI
Highest AQI recorded in
January51AQI
Lowest AQI recorded in
March25AQI
202451AQI
Highest AQI recorded in
September73AQI
Lowest AQI recorded in
February21AQI
202356AQI
Highest AQI recorded in
December57AQI
Lowest AQI recorded in
November49AQI
202167AQI
Highest AQI recorded in
August90AQI
Lowest AQI recorded in
March39AQI
202072AQI
Highest AQI recorded in
September118AQI
Lowest AQI recorded in
March33AQI
Most & Least Polluted Years Over the Last 5 Years
Visalia's annual 2025 AQI (38) shows an average percentage change of -36.1% (improved AQI) compared to previous years: 2020 (72), 2021 (67), 2023 (56), 2024 (51).