Centennial, Colorado, 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
Centennial, Colorado, United States
AQI Trends: Highest and Lowest
Same Day Analysis (27th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 28 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 26th Aug - 27th Aug 2025
Centennial, Colorado, United States
6 AM26th Aug 2025
7 PM
5 AM27th Aug 2025
48AQI
34AQI
36AQI
26AQI
In the last 24 hours,
Centennial's AQI reached its highest point of 48 at 12 PM during the Day, while the lowest point, 26, was recorded at 4 AM during the Night between 26th Aug and 27th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Centennial, Colorado, United States
--°C/°C
22°C16/32°C
19°C14/25°C
19°C11/32°C
19°C11/32°C
21°C11/34°C
22°C12/32°C
24°C12/35°C
26°C13/37°C
25°C14/37°C
27°C16/36°C
26°C15/36°C
23°C15/33°C
19°C16/26°C
20°C12/29°C
22°C14/31°C
24°C13/37°C
24°C15/38°C
24°C13/36°C
22°C15/33°C
24°C14/33°C
22°C15/35°C
23°C14/34°C
25°C14/36°C
26°C15/37°C
22°C17/31°C
21°C15/31°C
19°C14/28°C
17°C14/24°C
17°C14/25°C
20°C15/26°C
38AQI
33AQI
36AQI
33AQI
2025 Days Vs Air Quality
Centennial, Colorado, United States
97%
150
3%
5
Total number of days with different AQI categories in last 240 days in 2025 (125 days remaining)
Under WHO’s Safe Air Quality Limits: 97%
Health Risk Level:
Very Low
In 2025, 97% of 240 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
Centennial, Colorado, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
21AQI
20AQI
22AQI
27AQI
28AQI
30AQI
22AQI
19AQI
17AQI
20AQI
20AQI
18AQI
22AQI
21AQI
36AQI
44AQI
42AQI
29AQI
26AQI
24AQI
28AQI
25AQI
21AQI
18AQI
18AQI
18AQI
17AQI
20AQI
26AQI
39AQI
25AQI
25AQI
25AQI
17AQI
16AQI
16AQI
18AQI
25AQI
25AQI
25AQI
21AQI
17AQI
20AQI
22AQI
22AQI
24AQI
22AQI
24AQI
30AQI
29AQI
19AQI
20AQI
22AQI
23AQI
19AQI
18AQI
25AQI
24AQI
31AQI
33AQI
29AQI
27AQI
31AQI
26AQI
21AQI
28AQI
32AQI
29AQI
26AQI
23AQI
25AQI
29AQI
28AQI
26AQI
31AQI
37AQI
30AQI
28AQI
29AQI
32AQI
33AQI
29AQI
35AQI
29AQI
30AQI
28AQI
36AQI
53AQI
50AQI
39AQI
41AQI
38AQI
33AQI
37AQI
36AQI
38AQI
34AQI
31AQI
33AQI
29AQI
28AQI
38AQI
29AQI
26AQI
26AQI
27AQI
31AQI
38AQI
43AQI
40AQI
32AQI
34AQI
43AQI
50AQI
45AQI
37AQI
28AQI
24AQI
25AQI
28AQI
34AQI
39AQI
44AQI
41AQI
43AQI
53AQI
46AQI
56AQI
41AQI
29AQI
24AQI
39AQI
49AQI
51AQI
41AQI
35AQI
32AQI
31AQI
29AQI
30AQI
39AQI
52AQI
50AQI
43AQI
29AQI
28AQI
20AQI
26AQI
35AQI
35AQI
34AQI
33AQI
35AQI
35AQI
28AQI
25AQI
24AQI
24AQI
33AQI
36AQI
35AQI
No. of days
202530AQI
Highest AQI recorded in
July36AQI
Lowest AQI recorded in
April24AQI
Most & Least Polluted Years Over the Last 1 Years
Centennial's annual 2025 AQI (30) shows an average percentage change of NaN% (improved AQI) compared to previous years: .