Ouray, Utah, 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
Ouray, Utah, United States
AQI Trends: Highest and Lowest
Same Day Analysis (18th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 24 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 18th Oct - 19th Oct 2025
Ouray, Utah, United States
7 AM18th Oct 2025
6 PM
6 AM19th Oct 2025
41AQI
16AQI
37AQI
7AQI
In the last 24 hours,
Ouray's AQI reached its highest point of 41 at 10 AM during the Day, while the lowest point, 7, was recorded at 9 PM during the Night between 18th Oct and 19th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Ouray, Utah, United States
17°C9/26°C
18°C10/28°C
19°C11/29°C
17°C12/25°C
13°C8/20°C
14°C5/23°C
15°C4/26°C
17°C8/27°C
18°C8/28°C
18°C12/24°C
16°C8/25°C
15°C9/26°C
15°C8/25°C
16°C6/28°C
18°C9/29°C
14°C9/21°C
11°C5/18°C
11°C4/19°C
11°C2/21°C
12°C0/25°C
15°C4/26°C
15°C12/18°C
15°C12/20°C
10°C6/14°C
10°C3/16°C
13°C8/18°C
12°C6/19°C
9°C6/16°C
8°C0/16°C
9°C1/20°C
--°C/°C
30AQI
20AQI
26AQI
21AQI
2025 Days Vs Air Quality
Ouray, Utah, United States
90%
187
10%
20
Total number of days with different AQI categories in last 292 days in 2025 (73 days remaining)
Under WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2025, 90% of 292 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
Ouray, Utah, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
35AQI
36AQI
52AQI
56AQI
42AQI
42AQI
19AQI
19AQI
21AQI
23AQI
27AQI
29AQI
29AQI
29AQI
50AQI
52AQI
47AQI
37AQI
28AQI
27AQI
34AQI
34AQI
23AQI
15AQI
17AQI
23AQI
20AQI
28AQI
35AQI
40AQI
24AQI
26AQI
35AQI
18AQI
21AQI
21AQI
20AQI
23AQI
27AQI
25AQI
26AQI
19AQI
20AQI
32AQI
35AQI
34AQI
29AQI
37AQI
56AQI
42AQI
18AQI
22AQI
24AQI
28AQI
20AQI
18AQI
22AQI
28AQI
36AQI
37AQI
22AQI
23AQI
32AQI
32AQI
30AQI
34AQI
34AQI
36AQI
31AQI
25AQI
33AQI
36AQI
28AQI
34AQI
39AQI
47AQI
46AQI
38AQI
41AQI
40AQI
36AQI
32AQI
28AQI
26AQI
29AQI
36AQI
36AQI
57AQI
53AQI
57AQI
46AQI
44AQI
40AQI
50AQI
47AQI
42AQI
35AQI
41AQI
45AQI
38AQI
33AQI
50AQI
41AQI
39AQI
35AQI
35AQI
40AQI
49AQI
50AQI
41AQI
40AQI
39AQI
50AQI
55AQI
53AQI
46AQI
41AQI
35AQI
35AQI
33AQI
37AQI
47AQI
50AQI
40AQI
45AQI
54AQI
48AQI
50AQI
41AQI
37AQI
31AQI
43AQI
55AQI
67AQI
51AQI
51AQI
39AQI
37AQI
35AQI
37AQI
45AQI
54AQI
51AQI
48AQI
33AQI
34AQI
28AQI
39AQI
47AQI
41AQI
40AQI
39AQI
38AQI
41AQI
36AQI
34AQI
49AQI
46AQI
40AQI
43AQI
45AQI
53AQI
54AQI
66AQI
62AQI
49AQI
31AQI
31AQI
32AQI
28AQI
26AQI
21AQI
18AQI
28AQI
29AQI
21AQI
27AQI
35AQI
31AQI
22AQI
19AQI
20AQI
27AQI
32AQI
26AQI
17AQI
13AQI
16AQI
18AQI
22AQI
24AQI
23AQI
29AQI
17AQI
19AQI
25AQI
37AQI
38AQI
25AQI
28AQI
19AQI
20AQI
27AQI
22AQI
20AQI
23AQI
24AQI
44AQI
28AQI
29AQI
39AQI
43AQI
42AQI
31AQI
25AQI
No. of days
202535AQI
Highest AQI recorded in
March44AQI
Lowest AQI recorded in
October25AQI
Most & Least Polluted Years Over the Last 1 Years
Ouray's annual 2025 AQI (35) shows an average percentage change of NaN% (improved AQI) compared to previous years: .