35th Avenue, Greeley, Colorado, 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
35th Avenue, Greeley, Colorado, United States
AQI Trends: Highest and Lowest
Same Day Analysis (20th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 20 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 20th Oct - 21st Oct 2025
35th Avenue, Greeley, Colorado, United States
7 AM20th Oct 2025
6 PM
6 AM21st Oct 2025
31AQI
15AQI
23AQI
15AQI
In the last 24 hours,
35th Avenue's AQI reached its highest point of 31 at 4 PM during the Day, while the lowest point, undefined, was recorded at 6 AM during the Night between 20th Oct and 21st Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
35th Avenue, Greeley, Colorado, United States
19°C10/30°C
18°C11/28°C
12°C10/15°C
14°C8/22°C
16°C7/27°C
18°C6/31°C
17°C9/27°C
19°C11/28°C
18°C11/27°C
18°C9/28°C
19°C10/28°C
18°C8/29°C
19°C8/31°C
19°C11/31°C
12°C6/19°C
9°C7/13°C
11°C5/17°C
13°C4/26°C
17°C6/30°C
16°C9/26°C
15°C11/23°C
13°C4/22°C
9°C3/17°C
14°C6/24°C
16°C10/26°C
16°C10/24°C
12°C3/21°C
9°C3/18°C
10°C-3/26°C
13°C8/17°C
--°C/°C
37AQI
27AQI
38AQI
29AQI
2025 Days Vs Air Quality
35th Avenue, Greeley, Colorado, United States
89%
186
11%
23
Total number of days with different AQI categories in last 294 days in 2025 (71 days remaining)
Under WHO’s Safe Air Quality Limits: 89%
Health Risk Level:
Low
In 2025, 89% of 294 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
35th Avenue, Greeley, Colorado, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
37AQI
38AQI
37AQI
21AQI
22AQI
36AQI
20AQI
18AQI
20AQI
20AQI
27AQI
30AQI
33AQI
32AQI
44AQI
45AQI
46AQI
40AQI
26AQI
23AQI
34AQI
34AQI
26AQI
15AQI
22AQI
26AQI
16AQI
26AQI
34AQI
50AQI
19AQI
24AQI
43AQI
17AQI
17AQI
19AQI
18AQI
18AQI
23AQI
26AQI
25AQI
22AQI
24AQI
37AQI
35AQI
35AQI
28AQI
26AQI
36AQI
37AQI
16AQI
16AQI
21AQI
32AQI
13AQI
16AQI
16AQI
23AQI
34AQI
40AQI
16AQI
19AQI
33AQI
27AQI
20AQI
30AQI
26AQI
33AQI
24AQI
19AQI
37AQI
41AQI
23AQI
25AQI
44AQI
54AQI
48AQI
35AQI
33AQI
37AQI
37AQI
33AQI
29AQI
28AQI
28AQI
36AQI
35AQI
48AQI
46AQI
43AQI
49AQI
36AQI
30AQI
39AQI
43AQI
38AQI
30AQI
35AQI
37AQI
31AQI
28AQI
39AQI
32AQI
32AQI
33AQI
35AQI
37AQI
45AQI
58AQI
46AQI
40AQI
35AQI
46AQI
52AQI
53AQI
50AQI
37AQI
36AQI
39AQI
29AQI
32AQI
39AQI
47AQI
38AQI
40AQI
53AQI
45AQI
53AQI
50AQI
39AQI
25AQI
40AQI
56AQI
88AQI
61AQI
55AQI
49AQI
42AQI
42AQI
41AQI
44AQI
50AQI
52AQI
54AQI
34AQI
38AQI
24AQI
40AQI
46AQI
42AQI
46AQI
47AQI
46AQI
45AQI
37AQI
25AQI
42AQI
42AQI
37AQI
43AQI
47AQI
56AQI
78AQI
78AQI
71AQI
56AQI
37AQI
40AQI
37AQI
31AQI
22AQI
17AQI
15AQI
26AQI
24AQI
17AQI
21AQI
35AQI
35AQI
24AQI
19AQI
19AQI
32AQI
33AQI
25AQI
27AQI
29AQI
19AQI
23AQI
31AQI
45AQI
56AQI
44AQI
22AQI
8AQI
57AQI
64AQI
52AQI
50AQI
63AQI
40AQI
19AQI
36AQI
52AQI
35AQI
28AQI
39AQI
32AQI
20AQI
32AQI
28AQI
25AQI
36AQI
40AQI
44AQI
35AQI
40AQI
No. of days
202535AQI
Highest AQI recorded in
August44AQI
Lowest AQI recorded in
May25AQI
Most & Least Polluted Years Over the Last 1 Years
35th Avenue's annual 2025 AQI (35) shows an average percentage change of NaN% (improved AQI) compared to previous years: .