Sisters, Redmond, Oregon, 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
Sisters, Redmond, Oregon, United States
AQI Trends: Highest and Lowest
Same Day Analysis (13th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 67 of Moderate air quality on the same day.
Day & Night AQI Trend: 13th Aug - 14th Aug 2026
Sisters, Redmond, Oregon, United States
5 AM13th Aug 2026
8 PM
4 AM14th Aug 2026
80AQI
52AQI
82AQI
53AQI
In the last 24 hours,
Sisters's AQI reached its highest point of 82 at 5 AM during the Night, while the lowest point, 52, was recorded at 8 PM during the Day between 13th Aug and 14th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Sisters, Redmond, Oregon, United States
21°C15/28°C
20°C8/30°C
21°C11/31°C
22°C10/33°C
23°C19/28°C
25°C16/34°C
26°C20/36°C
22°C14/31°C
23°C13/32°C
21°C14/27°C
20°C11/29°C
21°C11/30°C
21°C13/28°C
20°C11/30°C
21°C12/30°C
23°C13/33°C
20°C14/25°C
16°C8/24°C
17°C7/26°C
20°C10/30°C
23°C13/35°C
25°C16/35°C
26°C17/34°C
24°C15/32°C
22°C14/31°C
22°C12/31°C
21°C12/29°C
20°C13/27°C
20°C11/28°C
21°C14/29°C
68AQI
58AQI
64AQI
57AQI
2026 Days Vs Air Quality
Sisters, Redmond, Oregon, United States
85%
188
15%
34
Total number of days with different AQI categories in last 226 days in 2026 (139 days remaining)
Under WHO’s Safe Air Quality Limits: 85%
Health Risk Level:
Low
In 2026, 85% of 226 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
Sisters, Redmond, Oregon, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
53AQI (US)
27AQI (US)
9AQI (US)
10AQI (US)
19AQI (US)
10AQI (US)
12AQI (US)
19AQI (US)
28AQI (US)
26AQI (US)
27AQI (US)
22AQI (US)
27AQI (US)
24AQI (US)
24AQI (US)
26AQI (US)
30AQI (US)
33AQI (US)
27AQI (US)
23AQI (US)
34AQI (US)
49AQI (US)
53AQI (US)
47AQI (US)
45AQI (US)
46AQI (US)
44AQI (US)
46AQI (US)
52AQI (US)
51AQI (US)
46AQI (US)
46AQI (US)
49AQI (US)
48AQI (US)
47AQI (US)
47AQI (US)
42AQI (US)
42AQI (US)
46AQI (US)
46AQI (US)
47AQI (US)
47AQI (US)
48AQI (US)
53AQI (US)
50AQI (US)
40AQI (US)
44AQI (US)
46AQI (US)
43AQI (US)
44AQI (US)
43AQI (US)
38AQI (US)
38AQI (US)
40AQI (US)
45AQI (US)
42AQI (US)
38AQI (US)
36AQI (US)
38AQI (US)
42AQI (US)
56AQI (US)
47AQI (US)
46AQI (US)
42AQI (US)
38AQI (US)
40AQI (US)
42AQI (US)
40AQI (US)
34AQI (US)
41AQI (US)
42AQI (US)
40AQI (US)
36AQI (US)
36AQI (US)
40AQI (US)
34AQI (US)
32AQI (US)
33AQI (US)
39AQI (US)
36AQI (US)
36AQI (US)
39AQI (US)
38AQI (US)
35AQI (US)
34AQI (US)
34AQI (US)
34AQI (US)
29AQI (US)
28AQI (US)
27AQI (US)
34AQI (US)
35AQI (US)
30AQI (US)
29AQI (US)
28AQI (US)
30AQI (US)
29AQI (US)
33AQI (US)
31AQI (US)
32AQI (US)
35AQI (US)
31AQI (US)
34AQI (US)
35AQI (US)
33AQI (US)
32AQI (US)
32AQI (US)
34AQI (US)
30AQI (US)
30AQI (US)
27AQI (US)
30AQI (US)
32AQI (US)
33AQI (US)
29AQI (US)
24AQI (US)
24AQI (US)
26AQI (US)
27AQI (US)
26AQI (US)
23AQI (US)
29AQI (US)
33AQI (US)
30AQI (US)
28AQI (US)
28AQI (US)
34AQI (US)
30AQI (US)
28AQI (US)
29AQI (US)
26AQI (US)
39AQI (US)
41AQI (US)
40AQI (US)
37AQI (US)
33AQI (US)
30AQI (US)
32AQI (US)
36AQI (US)
34AQI (US)
31AQI (US)
31AQI (US)
27AQI (US)
28AQI (US)
27AQI (US)
26AQI (US)
28AQI (US)
30AQI (US)
31AQI (US)
31AQI (US)
30AQI (US)
26AQI (US)
28AQI (US)
25AQI (US)
24AQI (US)
26AQI (US)
26AQI (US)
28AQI (US)
28AQI (US)
27AQI (US)
25AQI (US)
24AQI (US)
26AQI (US)
28AQI (US)
28AQI (US)
27AQI (US)
25AQI (US)
24AQI (US)
22AQI (US)
25AQI (US)
24AQI (US)
25AQI (US)
25AQI (US)
28AQI (US)
30AQI (US)
28AQI (US)
25AQI (US)
27AQI (US)
26AQI (US)
27AQI (US)
28AQI (US)
25AQI (US)
25AQI (US)
28AQI (US)
29AQI (US)
27AQI (US)
29AQI (US)
33AQI (US)
30AQI (US)
29AQI (US)
31AQI (US)
31AQI (US)
28AQI (US)
29AQI (US)
59AQI (US)
59AQI (US)
65AQI (US)
69AQI (US)
71AQI (US)
74AQI (US)
71AQI (US)
59AQI (US)
60AQI (US)
60AQI (US)
64AQI (US)
65AQI (US)
64AQI (US)
64AQI (US)
61AQI (US)
60AQI (US)
51AQI (US)
56AQI (US)
71AQI (US)
71AQI (US)
69AQI (US)
64AQI (US)
58AQI (US)
69AQI (US)
71AQI (US)
65AQI (US)
62AQI (US)
67AQI (US)
32AQI (US)
44AQI (US)
38AQI (US)
31AQI (US)
31AQI (US)
27AQI (US)
46AQI (US)
64AQI (US)
No. of days
202637AQI (US)
Highest AQI (US) recorded in
August64AQI (US)
Lowest AQI (US) recorded in
June27AQI (US)
202525AQI (US)
Highest AQI (US) recorded in
September38AQI (US)
Lowest AQI (US) recorded in
May16AQI (US)
202425AQI (US)
Highest AQI (US) recorded in
July44AQI (US)
Lowest AQI (US) recorded in
May14AQI (US)
202329AQI (US)
Highest AQI (US) recorded in
August102AQI (US)
Lowest AQI (US) recorded in
March11AQI (US)
202221AQI (US)
Highest AQI (US) recorded in
August64AQI (US)
Lowest AQI (US) recorded in
June11AQI (US)
202122AQI (US)
Highest AQI (US) recorded in
August54AQI (US)
Lowest AQI (US) recorded in
February10AQI (US)
202038AQI (US)
Highest AQI (US) recorded in
September146AQI (US)
Lowest AQI (US) recorded in
June12AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Sisters's annual 2026 AQI (US) (37) shows an average percentage change of 44.2% (worsened AQI (US)) compared to previous years: 2020 (38), 2021 (22), 2022 (21), 2023 (29), 2024 (25), 2025 (25).