Winchester, Nevada, 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
Winchester, Nevada, United States
AQI Trends: Highest and Lowest
Same Day Analysis (1st August ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 2nd highest AQI at 30 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 1st Aug - 2nd Aug 2025
Winchester, Nevada, United States
5 AM1st Aug 2025
7 PM
4 AM2nd Aug 2025
46AQI
32AQI
30AQI
26AQI
In the last 24 hours,
Winchester's AQI reached its highest point of 46 at 11 AM during the Day, while the lowest point, 26, was recorded at 11 PM during the Night between 1st Aug and 2nd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Winchester, Nevada, United States
30°C25/38°C
32°C22/42°C
32°C21/42°C
32°C22/42°C
33°C22/44°C
35°C24/45°C
36°C25/46°C
35°C23/44°C
34°C23/44°C
35°C24/45°C
36°C25/46°C
36°C26/46°C
36°C26/45°C
34°C26/43°C
33°C25/41°C
30°C25/39°C
34°C25/42°C
34°C24/43°C
33°C24/41°C
32°C23/40°C
30°C21/39°C
30°C20/40°C
30°C20/38°C
30°C19/39°C
31°C21/41°C
32°C22/43°C
32°C22/43°C
31°C21/41°C
32°C21/43°C
33°C23/44°C
--°C/°C
40AQI
38AQI
36AQI
34AQI
2025 Days Vs Air Quality
Winchester, Nevada, United States
90%
192
10%
21
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Under WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2025, 90% of 214 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
Winchester, Nevada, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
96AQI
59AQI
59AQI
52AQI
50AQI
54AQI
50AQI
51AQI
46AQI
42AQI
60AQI
43AQI
43AQI
45AQI
41AQI
34AQI
39AQI
46AQI
63AQI
63AQI
41AQI
51AQI
42AQI
46AQI
59AQI
44AQI
44AQI
42AQI
48AQI
57AQI
63AQI
59AQI
47AQI
48AQI
43AQI
33AQI
34AQI
33AQI
33AQI
42AQI
42AQI
43AQI
39AQI
37AQI
29AQI
34AQI
41AQI
39AQI
34AQI
39AQI
40AQI
37AQI
39AQI
43AQI
45AQI
45AQI
42AQI
34AQI
37AQI
44AQI
44AQI
39AQI
38AQI
31AQI
31AQI
30AQI
31AQI
43AQI
36AQI
33AQI
28AQI
23AQI
25AQI
23AQI
29AQI
29AQI
26AQI
28AQI
26AQI
28AQI
29AQI
28AQI
30AQI
31AQI
39AQI
35AQI
36AQI
35AQI
38AQI
32AQI
25AQI
22AQI
17AQI
21AQI
18AQI
27AQI
30AQI
30AQI
41AQI
40AQI
40AQI
34AQI
30AQI
34AQI
34AQI
37AQI
37AQI
31AQI
17AQI
25AQI
28AQI
34AQI
33AQI
32AQI
30AQI
36AQI
15AQI
18AQI
22AQI
29AQI
25AQI
33AQI
37AQI
23AQI
23AQI
28AQI
28AQI
29AQI
33AQI
30AQI
35AQI
32AQI
38AQI
21AQI
23AQI
27AQI
39AQI
35AQI
33AQI
33AQI
40AQI
41AQI
33AQI
33AQI
34AQI
33AQI
35AQI
39AQI
38AQI
40AQI
34AQI
43AQI
27AQI
31AQI
36AQI
31AQI
28AQI
36AQI
33AQI
36AQI
38AQI
41AQI
37AQI
39AQI
38AQI
33AQI
36AQI
37AQI
41AQI
45AQI
44AQI
48AQI
46AQI
45AQI
53AQI
52AQI
50AQI
52AQI
47AQI
40AQI
29AQI
52AQI
41AQI
38AQI
48AQI
50AQI
32AQI
33AQI
39AQI
32AQI
38AQI
55AQI
45AQI
49AQI
53AQI
54AQI
46AQI
39AQI
40AQI
34AQI
29AQI
33AQI
33AQI
26AQI
24AQI
23AQI
21AQI
22AQI
26AQI
28AQI
31AQI
29AQI
30AQI
51AQI
40AQI
32AQI
29AQI
32AQI
40AQI
37AQI
30AQI
No. of days
202537AQI
Highest AQI recorded in
January51AQI
Lowest AQI recorded in
April29AQI
202440AQI
Highest AQI recorded in
December58AQI
Lowest AQI recorded in
January8AQI
20238AQI
Highest AQI recorded in
November9AQI
Lowest AQI recorded in
December8AQI
202137AQI
Highest AQI recorded in
January49AQI
Lowest AQI recorded in
March31AQI
202045AQI
Highest AQI recorded in
September62AQI
Lowest AQI recorded in
March20AQI
Most & Least Polluted Years Over the Last 5 Years
Winchester's annual 2025 AQI (37) shows an average percentage change of 82.7% (worsened AQI) compared to previous years: 2020 (45), 2021 (37), 2023 (8), 2024 (40).