River West, 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!
October Air Quality Analysis
River West, Bend, Oregon, United States
AQI Trends: Highest and Lowest
Same Day Analysis (4th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 22 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Oct - 5th Oct 2025
River West, Bend, Oregon, United States
6 AM4th Oct 2025
7 PM
5 AM5th Oct 2025
26AQI
20AQI
24AQI
19AQI
In the last 24 hours,
River West's AQI reached its highest point of 26 at 1 PM during the Day, while the lowest point, 19, was recorded at 5 AM during the Night between 4th Oct and 5th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
River West, Bend, Oregon, United States
24°C18/33°C
22°C14/32°C
18°C13/25°C
18°C14/25°C
15°C12/20°C
16°C11/22°C
15°C12/18°C
17°C12/24°C
19°C14/28°C
15°C10/19°C
15°C8/24°C
19°C10/29°C
20°C14/29°C
19°C13/28°C
20°C14/27°C
21°C16/30°C
17°C9/24°C
13°C4/25°C
17°C5/31°C
21°C9/33°C
19°C10/29°C
15°C5/25°C
18°C7/31°C
20°C12/29°C
16°C9/23°C
12°C6/20°C
12°C9/20°C
11°C5/16°C
11°C7/17°C
9°C4/15°C
--°C/°C
34AQI
30AQI
33AQI
30AQI
2025 Days Vs Air Quality
River West, Bend, Oregon, United States
94%
181
6%
12
Total number of days with different AQI categories in last 278 days in 2025 (87 days remaining)
Under WHO’s Safe Air Quality Limits: 94%
Health Risk Level:
Very Low
In 2025, 94% of 278 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
River West, Bend, Oregon, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
18AQI
17AQI
16AQI
15AQI
26AQI
16AQI
18AQI
18AQI
23AQI
26AQI
25AQI
25AQI
16AQI
14AQI
14AQI
19AQI
16AQI
18AQI
22AQI
27AQI
25AQI
23AQI
19AQI
22AQI
22AQI
21AQI
14AQI
15AQI
20AQI
29AQI
28AQI
29AQI
27AQI
18AQI
14AQI
19AQI
22AQI
26AQI
18AQI
16AQI
16AQI
17AQI
22AQI
18AQI
24AQI
23AQI
16AQI
15AQI
15AQI
14AQI
16AQI
17AQI
13AQI
15AQI
13AQI
12AQI
17AQI
17AQI
16AQI
21AQI
20AQI
16AQI
15AQI
17AQI
15AQI
14AQI
18AQI
12AQI
17AQI
20AQI
20AQI
18AQI
22AQI
22AQI
24AQI
25AQI
30AQI
28AQI
23AQI
19AQI
26AQI
29AQI
27AQI
23AQI
17AQI
17AQI
17AQI
16AQI
16AQI
17AQI
30AQI
33AQI
19AQI
17AQI
17AQI
17AQI
18AQI
24AQI
23AQI
20AQI
18AQI
20AQI
19AQI
18AQI
25AQI
23AQI
17AQI
19AQI
20AQI
20AQI
20AQI
25AQI
40AQI
47AQI
25AQI
20AQI
17AQI
19AQI
19AQI
23AQI
24AQI
21AQI
21AQI
18AQI
18AQI
19AQI
22AQI
19AQI
37AQI
37AQI
24AQI
23AQI
22AQI
21AQI
17AQI
17AQI
18AQI
22AQI
25AQI
29AQI
29AQI
20AQI
21AQI
20AQI
16AQI
19AQI
21AQI
23AQI
20AQI
43AQI
51AQI
59AQI
51AQI
52AQI
54AQI
47AQI
46AQI
50AQI
52AQI
53AQI
52AQI
45AQI
35AQI
60AQI
45AQI
52AQI
62AQI
40AQI
27AQI
50AQI
53AQI
47AQI
38AQI
17AQI
17AQI
22AQI
25AQI
26AQI
37AQI
23AQI
16AQI
22AQI
37AQI
38AQI
32AQI
26AQI
33AQI
39AQI
13AQI
15AQI
17AQI
20AQI
22AQI
18AQI
21AQI
17AQI
21AQI
22AQI
32AQI
36AQI
19AQI
No. of days
202525AQI
Highest AQI recorded in
September36AQI
Lowest AQI recorded in
May17AQI
Most & Least Polluted Years Over the Last 1 Years
River West's annual 2025 AQI (25) shows an average percentage change of NaN% (improved AQI) compared to previous years: .