Bend, Oregon, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Bend, Oregon, United States
AQI Trends: Highest and Lowest
Same Day Analysis (28th September):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 50 of Good air quality, showing improvement over 2022 on the same day.
Day & Night AQI Trend: 27th Sep - 28th Sep 2026
Bend, Oregon, United States
6 AM27th Sep 2026
7 PM
5 AM28th Sep 2026
52AQI
16AQI
65AQI
18AQI
In the last 24 hours,
Bend's AQI reached its highest point of 65 at 5 AM during the Night, while the lowest point, 16, was recorded at 3 PM during the Day between 27th Sep and 28th Sep 2026.
Day & Night AQI Trend : Aug - Sep 2026
Bend, Oregon, United States
15°C4/27°C
18°C6/31°C
18°C11/26°C
12°C8/16°C
11°C6/16°C
10°C4/16°C
12°C3/19°C
11°C7/15°C
13°C5/23°C
16°C6/28°C
20°C7/32°C
21°C13/32°C
17°C10/25°C
13°C6/23°C
9°C6/14°C
12°C5/21°C
13°C8/20°C
13°C8/19°C
12°C9/16°C
15°C9/23°C
17°C10/24°C
19°C12/27°C
19°C14/26°C
16°C11/23°C
14°C8/21°C
17°C10/26°C
11°C7/16°C
10°C5/16°C
10°C6/15°C
12°C5/20°C
49AQI
38AQI
49AQI
38AQI
2026 Days Vs Air Quality
Bend, Oregon, United States
79%
213
21%
55
Total number of days with different AQI categories in last 271 days in 2026 (94 days remaining)
Under WHO’s Safe Air Quality Limits: 79%
Health Risk Level:
Low
In 2026, 79% of 271 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
Bend, Oregon, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
39AQI (US)
16AQI (US)
15AQI (US)
10AQI (US)
19AQI (US)
18AQI (US)
13AQI (US)
23AQI (US)
30AQI (US)
27AQI (US)
26AQI (US)
26AQI (US)
26AQI (US)
30AQI (US)
26AQI (US)
28AQI (US)
33AQI (US)
36AQI (US)
37AQI (US)
29AQI (US)
38AQI (US)
51AQI (US)
53AQI (US)
47AQI (US)
46AQI (US)
46AQI (US)
44AQI (US)
45AQI (US)
52AQI (US)
50AQI (US)
43AQI (US)
44AQI (US)
46AQI (US)
46AQI (US)
46AQI (US)
46AQI (US)
41AQI (US)
42AQI (US)
48AQI (US)
45AQI (US)
45AQI (US)
46AQI (US)
48AQI (US)
54AQI (US)
51AQI (US)
40AQI (US)
44AQI (US)
46AQI (US)
43AQI (US)
43AQI (US)
43AQI (US)
37AQI (US)
39AQI (US)
42AQI (US)
46AQI (US)
42AQI (US)
37AQI (US)
36AQI (US)
38AQI (US)
42AQI (US)
57AQI (US)
47AQI (US)
46AQI (US)
41AQI (US)
37AQI (US)
41AQI (US)
42AQI (US)
39AQI (US)
33AQI (US)
41AQI (US)
42AQI (US)
40AQI (US)
36AQI (US)
35AQI (US)
40AQI (US)
34AQI (US)
32AQI (US)
33AQI (US)
39AQI (US)
34AQI (US)
35AQI (US)
38AQI (US)
37AQI (US)
33AQI (US)
32AQI (US)
35AQI (US)
33AQI (US)
29AQI (US)
28AQI (US)
28AQI (US)
33AQI (US)
34AQI (US)
30AQI (US)
29AQI (US)
29AQI (US)
29AQI (US)
27AQI (US)
32AQI (US)
29AQI (US)
32AQI (US)
33AQI (US)
30AQI (US)
34AQI (US)
37AQI (US)
33AQI (US)
31AQI (US)
32AQI (US)
34AQI (US)
29AQI (US)
30AQI (US)
28AQI (US)
31AQI (US)
33AQI (US)
34AQI (US)
28AQI (US)
24AQI (US)
23AQI (US)
25AQI (US)
28AQI (US)
26AQI (US)
22AQI (US)
29AQI (US)
33AQI (US)
31AQI (US)
28AQI (US)
27AQI (US)
32AQI (US)
30AQI (US)
27AQI (US)
29AQI (US)
24AQI (US)
38AQI (US)
40AQI (US)
39AQI (US)
37AQI (US)
33AQI (US)
31AQI (US)
31AQI (US)
34AQI (US)
33AQI (US)
30AQI (US)
29AQI (US)
27AQI (US)
28AQI (US)
28AQI (US)
26AQI (US)
28AQI (US)
30AQI (US)
31AQI (US)
31AQI (US)
30AQI (US)
25AQI (US)
28AQI (US)
25AQI (US)
24AQI (US)
26AQI (US)
26AQI (US)
27AQI (US)
27AQI (US)
27AQI (US)
25AQI (US)
24AQI (US)
26AQI (US)
27AQI (US)
28AQI (US)
27AQI (US)
25AQI (US)
24AQI (US)
22AQI (US)
25AQI (US)
25AQI (US)
24AQI (US)
24AQI (US)
27AQI (US)
29AQI (US)
28AQI (US)
25AQI (US)
27AQI (US)
26AQI (US)
27AQI (US)
29AQI (US)
25AQI (US)
26AQI (US)
28AQI (US)
30AQI (US)
27AQI (US)
29AQI (US)
33AQI (US)
31AQI (US)
29AQI (US)
31AQI (US)
30AQI (US)
28AQI (US)
29AQI (US)
57AQI (US)
56AQI (US)
63AQI (US)
67AQI (US)
69AQI (US)
70AQI (US)
67AQI (US)
56AQI (US)
58AQI (US)
59AQI (US)
64AQI (US)
64AQI (US)
59AQI (US)
63AQI (US)
58AQI (US)
58AQI (US)
52AQI (US)
57AQI (US)
70AQI (US)
70AQI (US)
67AQI (US)
62AQI (US)
57AQI (US)
67AQI (US)
68AQI (US)
65AQI (US)
60AQI (US)
65AQI (US)
62AQI (US)
58AQI (US)
54AQI (US)
61AQI (US)
59AQI (US)
66AQI (US)
62AQI (US)
65AQI (US)
57AQI (US)
46AQI (US)
50AQI (US)
54AQI (US)
61AQI (US)
63AQI (US)
66AQI (US)
58AQI (US)
58AQI (US)
62AQI (US)
59AQI (US)
47AQI (US)
58AQI (US)
37AQI (US)
39AQI (US)
50AQI (US)
36AQI (US)
36AQI (US)
48AQI (US)
48AQI (US)
47AQI (US)
53AQI (US)
30AQI (US)
24AQI (US)
44AQI (US)
42AQI (US)
43AQI (US)
47AQI (US)
48AQI (US)
47AQI (US)
45AQI (US)
56AQI (US)
44AQI (US)
59AQI (US)
39AQI (US)
29AQI (US)
34AQI (US)
50AQI (US)
33AQI (US)
44AQI (US)
37AQI (US)
30AQI (US)
30AQI (US)
26AQI (US)
45AQI (US)
61AQI (US)
44AQI (US)
No. of days
202639AQI (US)
Highest AQI (US) recorded in
August61AQI (US)
Lowest AQI (US) recorded in
June26AQI (US)
202525AQI (US)
Highest AQI (US) recorded in
September37AQI (US)
Lowest AQI (US) recorded in
May18AQI (US)
202431AQI (US)
Highest AQI (US) recorded in
September57AQI (US)
Lowest AQI (US) recorded in
April14AQI (US)
202329AQI (US)
Highest AQI (US) recorded in
August93AQI (US)
Lowest AQI (US) recorded in
April10AQI (US)
202225AQI (US)
Highest AQI (US) recorded in
September63AQI (US)
Lowest AQI (US) recorded in
May11AQI (US)
202129AQI (US)
Highest AQI (US) recorded in
August73AQI (US)
Lowest AQI (US) recorded in
October15AQI (US)
202036AQI (US)
Highest AQI (US) recorded in
September132AQI (US)
Lowest AQI (US) recorded in
May11AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Bend's annual 2026 AQI (US) (39) shows an average percentage change of 35.8% (worsened AQI (US)) compared to previous years: 2020 (36), 2021 (29), 2022 (25), 2023 (29), 2024 (31), 2025 (25).