Bismarck, North Dakota, 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
Bismarck, North Dakota, United States
AQI Trends: Highest and Lowest
Same Day Analysis (14th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 53 of Moderate air quality on the same day.
Day & Night AQI Trend: 14th Aug - 15th Aug 2026
Bismarck, North Dakota, United States
6 AM14th Aug 2026
9 PM
5 AM15th Aug 2026
61AQI
44AQI
66AQI
58AQI
In the last 24 hours,
Bismarck's AQI reached its highest point of 66 at 2 AM during the Night, while the lowest point, 44, was recorded at 7 AM during the Day between 14th Aug and 15th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Bismarck, North Dakota, United States
26°C20/31°C
24°C15/35°C
29°C20/40°C
26°C18/33°C
21°C14/27°C
22°C13/29°C
23°C13/32°C
28°C17/40°C
28°C17/41°C
31°C20/42°C
28°C16/37°C
28°C19/37°C
29°C19/39°C
28°C22/36°C
25°C17/32°C
26°C13/35°C
30°C21/40°C
22°C13/26°C
17°C8/26°C
21°C8/31°C
25°C14/35°C
20°C10/28°C
23°C10/34°C
22°C15/30°C
21°C13/29°C
24°C15/32°C
21°C16/27°C
21°C15/26°C
20°C18/23°C
22°C16/28°C
61AQI
57AQI
62AQI
59AQI
2026 Days Vs Air Quality
Bismarck, North Dakota, United States
84%
188
14%
32
1%
3
Total number of days with different AQI categories in last 227 days in 2026 (138 days remaining)
Under WHO’s Safe Air Quality Limits: 84%
Health Risk Level:
Low
In 2026, 84% of 227 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
Bismarck, North Dakota, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
28AQI (US)
35AQI (US)
29AQI (US)
24AQI (US)
20AQI (US)
22AQI (US)
9AQI (US)
11AQI (US)
17AQI (US)
19AQI (US)
16AQI (US)
11AQI (US)
12AQI (US)
11AQI (US)
10AQI (US)
31AQI (US)
9AQI (US)
16AQI (US)
16AQI (US)
26AQI (US)
16AQI (US)
30AQI (US)
31AQI (US)
32AQI (US)
35AQI (US)
36AQI (US)
22AQI (US)
24AQI (US)
24AQI (US)
38AQI (US)
36AQI (US)
39AQI (US)
32AQI (US)
27AQI (US)
27AQI (US)
42AQI (US)
38AQI (US)
21AQI (US)
26AQI (US)
45AQI (US)
35AQI (US)
29AQI (US)
34AQI (US)
31AQI (US)
38AQI (US)
49AQI (US)
26AQI (US)
27AQI (US)
22AQI (US)
34AQI (US)
31AQI (US)
21AQI (US)
27AQI (US)
25AQI (US)
30AQI (US)
28AQI (US)
27AQI (US)
20AQI (US)
29AQI (US)
35AQI (US)
34AQI (US)
40AQI (US)
34AQI (US)
42AQI (US)
30AQI (US)
26AQI (US)
34AQI (US)
25AQI (US)
20AQI (US)
28AQI (US)
33AQI (US)
20AQI (US)
22AQI (US)
18AQI (US)
18AQI (US)
17AQI (US)
28AQI (US)
45AQI (US)
38AQI (US)
27AQI (US)
16AQI (US)
19AQI (US)
24AQI (US)
36AQI (US)
25AQI (US)
13AQI (US)
17AQI (US)
34AQI (US)
19AQI (US)
15AQI (US)
20AQI (US)
23AQI (US)
27AQI (US)
25AQI (US)
24AQI (US)
24AQI (US)
25AQI (US)
34AQI (US)
18AQI (US)
23AQI (US)
28AQI (US)
39AQI (US)
26AQI (US)
19AQI (US)
26AQI (US)
22AQI (US)
24AQI (US)
29AQI (US)
17AQI (US)
17AQI (US)
32AQI (US)
12AQI (US)
22AQI (US)
14AQI (US)
17AQI (US)
17AQI (US)
24AQI (US)
21AQI (US)
21AQI (US)
25AQI (US)
20AQI (US)
28AQI (US)
22AQI (US)
25AQI (US)
29AQI (US)
40AQI (US)
21AQI (US)
32AQI (US)
38AQI (US)
32AQI (US)
88AQI (US)
71AQI (US)
51AQI (US)
52AQI (US)
54AQI (US)
46AQI (US)
41AQI (US)
40AQI (US)
42AQI (US)
43AQI (US)
36AQI (US)
42AQI (US)
26AQI (US)
22AQI (US)
28AQI (US)
38AQI (US)
26AQI (US)
25AQI (US)
40AQI (US)
32AQI (US)
16AQI (US)
23AQI (US)
30AQI (US)
38AQI (US)
30AQI (US)
17AQI (US)
23AQI (US)
17AQI (US)
17AQI (US)
13AQI (US)
11AQI (US)
11AQI (US)
16AQI (US)
16AQI (US)
20AQI (US)
23AQI (US)
26AQI (US)
28AQI (US)
23AQI (US)
21AQI (US)
22AQI (US)
26AQI (US)
17AQI (US)
21AQI (US)
24AQI (US)
26AQI (US)
39AQI (US)
55AQI (US)
45AQI (US)
65AQI (US)
46AQI (US)
55AQI (US)
84AQI (US)
64AQI (US)
66AQI (US)
67AQI (US)
43AQI (US)
76AQI (US)
59AQI (US)
95AQI (US)
82AQI (US)
42AQI (US)
96AQI (US)
124AQI (US)
52AQI (US)
49AQI (US)
45AQI (US)
57AQI (US)
62AQI (US)
72AQI (US)
66AQI (US)
56AQI (US)
56AQI (US)
84AQI (US)
102AQI (US)
78AQI (US)
77AQI (US)
55AQI (US)
53AQI (US)
49AQI (US)
52AQI (US)
114AQI (US)
42AQI (US)
42AQI (US)
47AQI (US)
50AQI (US)
50AQI (US)
49AQI (US)
44AQI (US)
49AQI (US)
50AQI (US)
58AQI (US)
53AQI (US)
22AQI (US)
31AQI (US)
27AQI (US)
23AQI (US)
37AQI (US)
24AQI (US)
67AQI (US)
54AQI (US)
No. of days
202634AQI (US)
Highest AQI (US) recorded in
July67AQI (US)
Lowest AQI (US) recorded in
January22AQI (US)
202532AQI (US)
Highest AQI (US) recorded in
June50AQI (US)
Lowest AQI (US) recorded in
April19AQI (US)
202432AQI (US)
Highest AQI (US) recorded in
September45AQI (US)
Lowest AQI (US) recorded in
November22AQI (US)
202342AQI (US)
Highest AQI (US) recorded in
September66AQI (US)
Lowest AQI (US) recorded in
December24AQI (US)
202236AQI (US)
Highest AQI (US) recorded in
October47AQI (US)
Lowest AQI (US) recorded in
February29AQI (US)
202137AQI (US)
Highest AQI (US) recorded in
July67AQI (US)
Lowest AQI (US) recorded in
November26AQI (US)
202030AQI (US)
Highest AQI (US) recorded in
September37AQI (US)
Lowest AQI (US) recorded in
March26AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Bismarck's annual 2026 AQI (US) (34) shows an average percentage change of -1.1% (improved AQI (US)) compared to previous years: 2020 (30), 2021 (37), 2022 (36), 2023 (42), 2024 (32), 2025 (32).