Winters, 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
Winters, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (23rd August ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 1st highest AQI at 44 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 24th Aug - 25th Aug 2025
Winters, California, United States
6 AM24th Aug 2025
8 PM
5 AM25th Aug 2025
44AQI
33AQI
43AQI
37AQI
In the last 24 hours,
Winters's AQI reached its highest point of 44 at 6 PM during the Day, while the lowest point, undefined, was recorded at 5 AM during the Night between 24th Aug and 25th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Winters, California, United States
20°C13/31°C
21°C13/33°C
24°C12/38°C
24°C12/39°C
21°C13/34°C
24°C12/39°C
24°C13/37°C
24°C13/38°C
23°C12/36°C
23°C11/36°C
22°C10/35°C
26°C12/39°C
27°C16/40°C
28°C14/42°C
29°C16/43°C
27°C15/43°C
25°C13/41°C
23°C13/38°C
22°C14/35°C
24°C14/37°C
25°C14/39°C
23°C15/34°C
21°C14/32°C
21°C11/34°C
23°C11/37°C
26°C13/41°C
29°C18/44°C
27°C14/42°C
27°C17/41°C
25°C15/39°C
--°C/°C
34AQI
27AQI
31AQI
29AQI
2025 Days Vs Air Quality
Winters, California, United States
97%
229
3%
6
Total number of days with different AQI categories in last 237 days in 2025 (128 days remaining)
Under WHO’s Safe Air Quality Limits: 97%
Health Risk Level:
Very Low
In 2025, 97% of 237 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
Winters, California, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
56AQI
43AQI
41AQI
21AQI
29AQI
30AQI
21AQI
23AQI
30AQI
40AQI
31AQI
23AQI
25AQI
28AQI
44AQI
42AQI
45AQI
48AQI
51AQI
35AQI
36AQI
41AQI
48AQI
51AQI
44AQI
33AQI
30AQI
46AQI
48AQI
57AQI
45AQI
40AQI
22AQI
20AQI
20AQI
23AQI
24AQI
23AQI
22AQI
25AQI
26AQI
27AQI
32AQI
32AQI
25AQI
24AQI
26AQI
21AQI
23AQI
23AQI
22AQI
21AQI
27AQI
23AQI
22AQI
21AQI
24AQI
27AQI
30AQI
29AQI
22AQI
20AQI
22AQI
22AQI
21AQI
23AQI
24AQI
28AQI
26AQI
27AQI
23AQI
19AQI
17AQI
35AQI
32AQI
15AQI
18AQI
18AQI
15AQI
19AQI
18AQI
20AQI
20AQI
27AQI
26AQI
19AQI
21AQI
17AQI
21AQI
21AQI
18AQI
17AQI
18AQI
23AQI
23AQI
23AQI
14AQI
15AQI
17AQI
19AQI
19AQI
24AQI
25AQI
25AQI
29AQI
32AQI
24AQI
25AQI
27AQI
26AQI
24AQI
32AQI
45AQI
41AQI
22AQI
20AQI
19AQI
21AQI
28AQI
32AQI
36AQI
34AQI
22AQI
30AQI
24AQI
27AQI
44AQI
38AQI
31AQI
26AQI
21AQI
17AQI
15AQI
18AQI
23AQI
30AQI
24AQI
24AQI
20AQI
17AQI
26AQI
27AQI
20AQI
32AQI
25AQI
16AQI
23AQI
27AQI
24AQI
28AQI
39AQI
45AQI
52AQI
39AQI
45AQI
37AQI
27AQI
29AQI
23AQI
25AQI
28AQI
40AQI
48AQI
46AQI
40AQI
38AQI
37AQI
35AQI
30AQI
34AQI
38AQI
28AQI
23AQI
24AQI
26AQI
26AQI
30AQI
35AQI
35AQI
31AQI
28AQI
29AQI
28AQI
41AQI
31AQI
37AQI
32AQI
24AQI
23AQI
21AQI
30AQI
49AQI
53AQI
40AQI
27AQI
27AQI
27AQI
23AQI
23AQI
25AQI
21AQI
27AQI
18AQI
17AQI
17AQI
17AQI
17AQI
17AQI
21AQI
27AQI
28AQI
29AQI
31AQI
28AQI
33AQI
36AQI
31AQI
35AQI
31AQI
35AQI
37AQI
33AQI
36AQI
35AQI
33AQI
24AQI
37AQI
22AQI
17AQI
20AQI
23AQI
29AQI
35AQI
48AQI
44AQI
38AQI
25AQI
22AQI
24AQI
26AQI
34AQI
27AQI
32AQI
No. of days
202529AQI
Highest AQI recorded in
January38AQI
Lowest AQI recorded in
March22AQI
202435AQI
Highest AQI recorded in
March67AQI
Lowest AQI recorded in
May21AQI
202345AQI
Highest AQI recorded in
November52AQI
Lowest AQI recorded in
December45AQI
202298AQI
Highest AQI recorded in
September100AQI
Lowest AQI recorded in
August84AQI
202187AQI
Highest AQI recorded in
September87AQI
Lowest AQI recorded in
September87AQI
202093AQI
Highest AQI recorded in
August114AQI
Lowest AQI recorded in
November17AQI
Most & Least Polluted Years Over the Last 6 Years
Winters's annual 2025 AQI (29) shows an average percentage change of -52.5% (improved AQI) compared to previous years: 2020 (93), 2021 (87), 2022 (98), 2023 (45), 2024 (35).