Raleigh, North Carolina, 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
Raleigh, North Carolina, United States
AQI Trends: Highest and Lowest
Same Day Analysis (9th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 48 of Good air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 8th Aug - 9th Aug 2025
Raleigh, North Carolina, United States
6 AM8th Aug 2025
8 PM
5 AM9th Aug 2025
95AQI
72AQI
74AQI
41AQI
In the last 24 hours,
Raleigh's AQI reached its highest point of 95 at 6 AM during the Day, while the lowest point, 41, was recorded at 5 AM during the Night between 8th Aug and 9th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Raleigh, North Carolina, United States
--°C/°C
28°C23/34°C
29°C24/34°C
29°C24/36°C
28°C23/33°C
27°C25/30°C
28°C24/32°C
28°C25/33°C
30°C26/37°C
29°C25/36°C
30°C24/37°C
31°C25/38°C
28°C24/33°C
27°C22/34°C
27°C22/33°C
31°C24/38°C
33°C26/40°C
33°C26/39°C
32°C26/38°C
30°C26/34°C
30°C23/37°C
28°C25/30°C
27°C23/31°C
23°C20/26°C
23°C18/29°C
24°C18/31°C
20°C17/21°C
21°C20/23°C
22°C20/24°C
24°C20/28°C
23°C18/29°C
41AQI
41AQI
40AQI
39AQI
2025 Days Vs Air Quality
Raleigh, North Carolina, United States
90%
200
10%
21
Total number of days with different AQI categories in last 222 days in 2025 (143 days remaining)
Under WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2025, 90% of 222 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
Raleigh, North Carolina, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
22AQI
22AQI
29AQI
22AQI
24AQI
21AQI
22AQI
23AQI
25AQI
36AQI
32AQI
36AQI
45AQI
25AQI
30AQI
43AQI
34AQI
46AQI
44AQI
23AQI
24AQI
30AQI
47AQI
47AQI
49AQI
49AQI
43AQI
36AQI
30AQI
32AQI
42AQI
24AQI
24AQI
37AQI
45AQI
24AQI
48AQI
38AQI
30AQI
36AQI
26AQI
33AQI
22AQI
21AQI
25AQI
25AQI
24AQI
26AQI
26AQI
26AQI
26AQI
25AQI
29AQI
37AQI
43AQI
50AQI
44AQI
62AQI
31AQI
33AQI
27AQI
32AQI
33AQI
31AQI
26AQI
33AQI
41AQI
30AQI
37AQI
32AQI
44AQI
61AQI
59AQI
52AQI
24AQI
24AQI
19AQI
46AQI
51AQI
18AQI
33AQI
30AQI
43AQI
25AQI
21AQI
23AQI
40AQI
37AQI
29AQI
34AQI
19AQI
28AQI
43AQI
50AQI
48AQI
34AQI
34AQI
18AQI
19AQI
27AQI
24AQI
18AQI
21AQI
42AQI
38AQI
22AQI
31AQI
43AQI
38AQI
47AQI
51AQI
49AQI
46AQI
50AQI
50AQI
38AQI
22AQI
27AQI
36AQI
46AQI
53AQI
43AQI
33AQI
21AQI
29AQI
28AQI
31AQI
42AQI
28AQI
23AQI
36AQI
26AQI
20AQI
28AQI
40AQI
54AQI
35AQI
25AQI
26AQI
33AQI
35AQI
24AQI
18AQI
20AQI
25AQI
29AQI
19AQI
17AQI
30AQI
25AQI
35AQI
44AQI
35AQI
41AQI
48AQI
40AQI
44AQI
36AQI
37AQI
34AQI
32AQI
45AQI
44AQI
36AQI
31AQI
35AQI
33AQI
29AQI
35AQI
34AQI
26AQI
48AQI
51AQI
57AQI
63AQI
64AQI
51AQI
54AQI
46AQI
48AQI
48AQI
39AQI
31AQI
34AQI
54AQI
65AQI
34AQI
31AQI
54AQI
45AQI
33AQI
35AQI
48AQI
45AQI
41AQI
32AQI
33AQI
36AQI
36AQI
37AQI
28AQI
44AQI
40AQI
52AQI
42AQI
43AQI
52AQI
54AQI
32AQI
41AQI
35AQI
44AQI
36AQI
28AQI
34AQI
37AQI
38AQI
32AQI
45AQI
82AQI
48AQI
33AQI
32AQI
34AQI
35AQI
30AQI
42AQI
41AQI
42AQI
No. of days
202536AQI
Highest AQI recorded in
June42AQI
Lowest AQI recorded in
May30AQI
202436AQI
Highest AQI recorded in
August43AQI
Lowest AQI recorded in
January32AQI
202342AQI
Highest AQI recorded in
June63AQI
Lowest AQI recorded in
October34AQI
202239AQI
Highest AQI recorded in
June43AQI
Lowest AQI recorded in
October36AQI
202139AQI
Highest AQI recorded in
July49AQI
Lowest AQI recorded in
February30AQI
202031AQI
Highest AQI recorded in
June38AQI
Lowest AQI recorded in
August24AQI
Most & Least Polluted Years Over the Last 6 Years
Raleigh's annual 2025 AQI (36) shows an average percentage change of -3.2% (improved AQI) compared to previous years: 2020 (31), 2021 (39), 2022 (39), 2023 (42), 2024 (36).