Eugene Highway 99, Eugene, 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
Eugene Highway 99, Eugene, Oregon, United States
AQI Trends: Highest and Lowest
Same Day Analysis (13th August):
On this day, AQI across the 4 years varied significantly: 2026 ranks 1st highest AQI at 60 of Moderate air quality on the same day.
Day & Night AQI Trend: 12th Aug - 13th Aug 2026
Eugene Highway 99, Eugene, Oregon, United States
5 AM12th Aug 2026
8 PM
4 AM13th Aug 2026
79AQI
27AQI
85AQI
34AQI
In the last 24 hours,
Eugene Highway 99's AQI reached its highest point of 85 at 9 PM during the Night, while the lowest point, 27, was recorded at 8 AM during the Day between 12th Aug and 13th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Eugene Highway 99, Eugene, Oregon, United States
22°C13/33°C
19°C13/26°C
19°C9/30°C
22°C11/32°C
23°C13/33°C
25°C17/36°C
28°C18/40°C
26°C19/36°C
22°C17/31°C
22°C15/32°C
20°C12/29°C
20°C14/29°C
21°C11/32°C
21°C14/30°C
21°C13/30°C
20°C11/30°C
22°C12/34°C
20°C15/26°C
19°C11/27°C
21°C11/32°C
24°C12/36°C
25°C14/37°C
25°C15/37°C
24°C14/35°C
25°C15/35°C
23°C14/34°C
22°C13/32°C
23°C14/33°C
22°C15/30°C
22°C14/31°C
61AQI
44AQI
53AQI
51AQI
2026 Days Vs Air Quality
Eugene Highway 99, Eugene, Oregon, United States
82%
181
18%
41
Total number of days with different AQI categories in last 225 days in 2026 (140 days remaining)
Under WHO’s Safe Air Quality Limits: 82%
Health Risk Level:
Low
In 2026, 82% of 225 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
Eugene Highway 99, Eugene, Oregon, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
65AQI (US)
48AQI (US)
18AQI (US)
15AQI (US)
22AQI (US)
36AQI (US)
10AQI (US)
11AQI (US)
13AQI (US)
26AQI (US)
22AQI (US)
29AQI (US)
58AQI (US)
71AQI (US)
38AQI (US)
27AQI (US)
45AQI (US)
61AQI (US)
57AQI (US)
62AQI (US)
74AQI (US)
49AQI (US)
53AQI (US)
47AQI (US)
45AQI (US)
47AQI (US)
42AQI (US)
46AQI (US)
51AQI (US)
54AQI (US)
44AQI (US)
46AQI (US)
47AQI (US)
49AQI (US)
47AQI (US)
48AQI (US)
43AQI (US)
41AQI (US)
47AQI (US)
45AQI (US)
45AQI (US)
41AQI (US)
42AQI (US)
48AQI (US)
48AQI (US)
38AQI (US)
45AQI (US)
45AQI (US)
41AQI (US)
41AQI (US)
38AQI (US)
34AQI (US)
38AQI (US)
40AQI (US)
48AQI (US)
43AQI (US)
37AQI (US)
38AQI (US)
38AQI (US)
42AQI (US)
62AQI (US)
47AQI (US)
48AQI (US)
40AQI (US)
34AQI (US)
40AQI (US)
43AQI (US)
37AQI (US)
37AQI (US)
42AQI (US)
40AQI (US)
40AQI (US)
34AQI (US)
35AQI (US)
39AQI (US)
32AQI (US)
31AQI (US)
37AQI (US)
41AQI (US)
37AQI (US)
38AQI (US)
40AQI (US)
38AQI (US)
32AQI (US)
29AQI (US)
30AQI (US)
31AQI (US)
26AQI (US)
27AQI (US)
25AQI (US)
32AQI (US)
31AQI (US)
27AQI (US)
31AQI (US)
29AQI (US)
31AQI (US)
27AQI (US)
33AQI (US)
29AQI (US)
31AQI (US)
31AQI (US)
26AQI (US)
30AQI (US)
34AQI (US)
32AQI (US)
29AQI (US)
30AQI (US)
33AQI (US)
27AQI (US)
27AQI (US)
24AQI (US)
26AQI (US)
28AQI (US)
33AQI (US)
27AQI (US)
25AQI (US)
24AQI (US)
26AQI (US)
26AQI (US)
24AQI (US)
25AQI (US)
35AQI (US)
35AQI (US)
29AQI (US)
26AQI (US)
27AQI (US)
31AQI (US)
27AQI (US)
24AQI (US)
26AQI (US)
24AQI (US)
47AQI (US)
51AQI (US)
58AQI (US)
57AQI (US)
56AQI (US)
52AQI (US)
41AQI (US)
49AQI (US)
49AQI (US)
47AQI (US)
43AQI (US)
28AQI (US)
28AQI (US)
27AQI (US)
26AQI (US)
28AQI (US)
29AQI (US)
32AQI (US)
31AQI (US)
30AQI (US)
26AQI (US)
28AQI (US)
25AQI (US)
24AQI (US)
27AQI (US)
26AQI (US)
28AQI (US)
27AQI (US)
27AQI (US)
25AQI (US)
24AQI (US)
26AQI (US)
27AQI (US)
28AQI (US)
28AQI (US)
25AQI (US)
24AQI (US)
22AQI (US)
25AQI (US)
25AQI (US)
24AQI (US)
25AQI (US)
28AQI (US)
30AQI (US)
28AQI (US)
25AQI (US)
26AQI (US)
26AQI (US)
27AQI (US)
28AQI (US)
25AQI (US)
25AQI (US)
28AQI (US)
30AQI (US)
27AQI (US)
29AQI (US)
33AQI (US)
31AQI (US)
29AQI (US)
31AQI (US)
30AQI (US)
28AQI (US)
29AQI (US)
48AQI (US)
52AQI (US)
40AQI (US)
46AQI (US)
54AQI (US)
59AQI (US)
58AQI (US)
54AQI (US)
54AQI (US)
55AQI (US)
51AQI (US)
53AQI (US)
52AQI (US)
59AQI (US)
51AQI (US)
51AQI (US)
52AQI (US)
55AQI (US)
70AQI (US)
71AQI (US)
71AQI (US)
64AQI (US)
52AQI (US)
68AQI (US)
61AQI (US)
53AQI (US)
56AQI (US)
60AQI (US)
41AQI (US)
43AQI (US)
37AQI (US)
29AQI (US)
36AQI (US)
27AQI (US)
40AQI (US)
60AQI (US)
No. of days
202638AQI (US)
Highest AQI (US) recorded in
August60AQI (US)
Lowest AQI (US) recorded in
June27AQI (US)
202529AQI (US)
Highest AQI (US) recorded in
January48AQI (US)
Lowest AQI (US) recorded in
May20AQI (US)
202426AQI (US)
Highest AQI (US) recorded in
December36AQI (US)
Lowest AQI (US) recorded in
May15AQI (US)
202327AQI (US)
Highest AQI (US) recorded in
November95AQI (US)
Lowest AQI (US) recorded in
April14AQI (US)
202232AQI (US)
Highest AQI (US) recorded in
February49AQI (US)
Lowest AQI (US) recorded in
July16AQI (US)
202123AQI (US)
Highest AQI (US) recorded in
November50AQI (US)
Lowest AQI (US) recorded in
February3AQI (US)
202040AQI (US)
Highest AQI (US) recorded in
September125AQI (US)
Lowest AQI (US) recorded in
June21AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Eugene Highway 99's annual 2026 AQI (US) (38) shows an average percentage change of 32.8% (worsened AQI (US)) compared to previous years: 2020 (40), 2021 (23), 2022 (32), 2023 (27), 2024 (26), 2025 (29).