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!
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
August Air Quality Analysis
Centennial, Colorado, United States
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2026
54AQILowest AQI recorded on
19th Aug 2025
20AQISame Day Analysis (6th August):
On this day, AQI across the 2 years varied significantly: 2026 ranks 2nd highest AQI at 49 of Good air quality, showing improvement over 2025 on the same day.
Day & Night AQI Trend: 5th Aug - 6th Aug 2026
Centennial, Colorado, United States
AQI
Day
Night
.
5 AM5th Aug 2026
8 PM
4 AM6th Aug 2026
Day time
Avg. Highest Time
4PM5th Aug
52AQI
Avg. Lowest Time
7PM5th Aug
42AQI
Night time
Avg. Highest Time
5AM5th Aug
46AQI
Avg. Lowest Time
4AM6th Aug
36AQI
In the last 24 hours,
Centennial's AQI reached its highest point of 52 at 4 PM during the Day, while the lowest point, 36, was recorded at 4 AM during the Night between 5th Aug and 6th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Centennial, Colorado, United States
JulAug
08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th
Day
Night
8th Jul 2026245 AMAQI
8th Jul 2026286 AMAQI
8th Jul 2026247 AMAQI
8th Jul 2026268 AMAQI
8th Jul 2026269 AMAQI
8th Jul 20263210 AMAQI
8th Jul 20263111 AMAQI
8th Jul 20262812 PMAQI
8th Jul 2026261 PMAQI
8th Jul 2026242 PMAQI
8th Jul 2026283 PMAQI
8th Jul 2026224 PMAQI
8th Jul 2026205 PMAQI
8th Jul 2026216 PMAQI
8th Jul 2026167 PMAQI
8th Jul 2026148 PMAQI
8th Jul 2026149 PMAQI
8th Jul 20261410 PMAQI
8th Jul 20261511 PMAQI
9th Jul 20261312 AMAQI
9th Jul 2026111 AMAQI
9th Jul 2026122 AMAQI
9th Jul 2026123 AMAQI
9th Jul 2026124 AMAQI
24°C16/34°C
9th Jul 2026135 AMAQI
9th Jul 2026146 AMAQI
9th Jul 2026137 AMAQI
9th Jul 2026148 AMAQI
9th Jul 2026149 AMAQI
9th Jul 20261710 AMAQI
9th Jul 20262211 AMAQI
9th Jul 20262612 PMAQI
9th Jul 2026231 PMAQI
9th Jul 2026202 PMAQI
9th Jul 2026153 PMAQI
9th Jul 2026194 PMAQI
9th Jul 2026225 PMAQI
9th Jul 2026186 PMAQI
9th Jul 2026187 PMAQI
9th Jul 2026128 PMAQI
9th Jul 2026139 PMAQI
9th Jul 20261210 PMAQI
9th Jul 20261111 PMAQI
10th Jul 20261212 AMAQI
10th Jul 2026151 AMAQI
10th Jul 2026132 AMAQI
10th Jul 2026123 AMAQI
10th Jul 2026134 AMAQI
23°C16/32°C
10th Jul 2026145 AMAQI
10th Jul 2026146 AMAQI
10th Jul 2026147 AMAQI
10th Jul 2026148 AMAQI
10th Jul 2026189 AMAQI
10th Jul 20262010 AMAQI
10th Jul 20261811 AMAQI
10th Jul 20261712 PMAQI
10th Jul 2026161 PMAQI
10th Jul 2026172 PMAQI
10th Jul 2026183 PMAQI
10th Jul 2026164 PMAQI
10th Jul 2026165 PMAQI
10th Jul 2026166 PMAQI
10th Jul 2026177 PMAQI
10th Jul 2026158 PMAQI
10th Jul 2026149 PMAQI
10th Jul 20261510 PMAQI
10th Jul 20262311 PMAQI
11th Jul 20261812 AMAQI
11th Jul 2026161 AMAQI
11th Jul 2026142 AMAQI
11th Jul 2026143 AMAQI
11th Jul 2026124 AMAQI
22°C14/33°C
11th Jul 2026115 AMAQI
11th Jul 2026106 AMAQI
11th Jul 2026137 AMAQI
11th Jul 2026128 AMAQI
11th Jul 2026169 AMAQI
11th Jul 20261610 AMAQI
11th Jul 20261611 AMAQI
11th Jul 20261612 PMAQI
11th Jul 2026181 PMAQI
11th Jul 2026192 PMAQI
11th Jul 2026183 PMAQI
11th Jul 2026174 PMAQI
11th Jul 2026155 PMAQI
11th Jul 2026126 PMAQI
11th Jul 2026127 PMAQI
11th Jul 2026128 PMAQI
11th Jul 2026129 PMAQI
11th Jul 20261410 PMAQI
11th Jul 20261411 PMAQI
12th Jul 20261412 AMAQI
12th Jul 2026141 AMAQI
12th Jul 2026122 AMAQI
12th Jul 2026123 AMAQI
12th Jul 2026124 AMAQI
26°C15/35°C
12th Jul 2026125 AMAQI
12th Jul 2026126 AMAQI
12th Jul 2026127 AMAQI
12th Jul 2026148 AMAQI
12th Jul 2026169 AMAQI
12th Jul 20261510 AMAQI
12th Jul 20261611 AMAQI
12th Jul 20261812 PMAQI
12th Jul 2026171 PMAQI
12th Jul 2026172 PMAQI
12th Jul 2026163 PMAQI
12th Jul 2026144 PMAQI
12th Jul 2026145 PMAQI
12th Jul 2026146 PMAQI
12th Jul 2026147 PMAQI
12th Jul 2026148 PMAQI
12th Jul 2026149 PMAQI
12th Jul 20261610 PMAQI
12th Jul 20261511 PMAQI
13th Jul 20261412 AMAQI
13th Jul 2026121 AMAQI
13th Jul 2026132 AMAQI
13th Jul 2026143 AMAQI
13th Jul 2026124 AMAQI
27°C18/36°C
13th Jul 2026145 AMAQI
13th Jul 2026126 AMAQI
13th Jul 2026137 AMAQI
13th Jul 2026158 AMAQI
13th Jul 2026169 AMAQI
13th Jul 20262010 AMAQI
13th Jul 20262211 AMAQI
13th Jul 20262612 PMAQI
13th Jul 2026241 PMAQI
13th Jul 2026242 PMAQI
13th Jul 2026243 PMAQI
13th Jul 2026244 PMAQI
13th Jul 2026245 PMAQI
13th Jul 2026246 PMAQI
13th Jul 2026247 PMAQI
13th Jul 2026228 PMAQI
13th Jul 2026199 PMAQI
13th Jul 20261910 PMAQI
13th Jul 20261811 PMAQI
14th Jul 20261612 AMAQI
14th Jul 2026181 AMAQI
14th Jul 2026182 AMAQI
14th Jul 2026173 AMAQI
14th Jul 2026164 AMAQI
27°C17/36°C
14th Jul 2026155 AMAQI
14th Jul 2026156 AMAQI
14th Jul 2026207 AMAQI
14th Jul 2026288 AMAQI
14th Jul 2026239 AMAQI
14th Jul 20262510 AMAQI
14th Jul 20262611 AMAQI
14th Jul 20262912 PMAQI
14th Jul 2026271 PMAQI
14th Jul 2026282 PMAQI
14th Jul 2026263 PMAQI
14th Jul 2026244 PMAQI
14th Jul 2026225 PMAQI
14th Jul 2026266 PMAQI
14th Jul 2026277 PMAQI
14th Jul 2026228 PMAQI
14th Jul 2026239 PMAQI
14th Jul 20262110 PMAQI
14th Jul 20262611 PMAQI
15th Jul 20262412 AMAQI
15th Jul 2026221 AMAQI
15th Jul 2026212 AMAQI
15th Jul 2026193 AMAQI
15th Jul 2026174 AMAQI
26°C17/35°C
15th Jul 2026145 AMAQI
15th Jul 2026166 AMAQI
15th Jul 2026167 AMAQI
15th Jul 2026198 AMAQI
15th Jul 2026219 AMAQI
15th Jul 20262410 AMAQI
15th Jul 20262711 AMAQI
15th Jul 20262912 PMAQI
15th Jul 2026301 PMAQI
15th Jul 2026302 PMAQI
15th Jul 2026303 PMAQI
15th Jul 2026274 PMAQI
15th Jul 2026265 PMAQI
15th Jul 2026296 PMAQI
15th Jul 2026267 PMAQI
15th Jul 2026228 PMAQI
15th Jul 2026209 PMAQI
15th Jul 20262710 PMAQI
15th Jul 20262811 PMAQI
16th Jul 20262412 AMAQI
16th Jul 2026221 AMAQI
16th Jul 2026202 AMAQI
16th Jul 2026183 AMAQI
16th Jul 2026164 AMAQI
26°C16/34°C
16th Jul 2026145 AMAQI
16th Jul 2026146 AMAQI
16th Jul 2026187 AMAQI
16th Jul 2026228 AMAQI
16th Jul 2026269 AMAQI
16th Jul 20262810 AMAQI
16th Jul 20262411 AMAQI
16th Jul 20263012 PMAQI
16th Jul 2026341 PMAQI
16th Jul 2026322 PMAQI
16th Jul 2026303 PMAQI
16th Jul 2026314 PMAQI
16th Jul 2026285 PMAQI
16th Jul 2026266 PMAQI
16th Jul 2026247 PMAQI
16th Jul 2026248 PMAQI
16th Jul 2026279 PMAQI
16th Jul 20262210 PMAQI
16th Jul 20261511 PMAQI
17th Jul 20261212 AMAQI
17th Jul 2026111 AMAQI
17th Jul 2026142 AMAQI
17th Jul 2026213 AMAQI
17th Jul 2026134 AMAQI
24°C17/33°C
17th Jul 2026215 AMAQI
17th Jul 2026216 AMAQI
17th Jul 2026257 AMAQI
17th Jul 2026218 AMAQI
17th Jul 2026199 AMAQI
17th Jul 20262310 AMAQI
17th Jul 20261611 AMAQI
17th Jul 20262112 PMAQI
17th Jul 2026281 PMAQI
17th Jul 2026252 PMAQI
17th Jul 2026253 PMAQI
17th Jul 2026254 PMAQI
17th Jul 2026255 PMAQI
17th Jul 2026216 PMAQI
17th Jul 2026147 PMAQI
17th Jul 2026298 PMAQI
17th Jul 2026259 PMAQI
17th Jul 20262710 PMAQI
17th Jul 20262511 PMAQI
18th Jul 20262512 AMAQI
18th Jul 2026231 AMAQI
18th Jul 2026252 AMAQI
18th Jul 2026253 AMAQI
18th Jul 2026254 AMAQI
24°C17/33°C
18th Jul 2026255 AMAQI
18th Jul 2026256 AMAQI
18th Jul 2026217 AMAQI
18th Jul 2026258 AMAQI
18th Jul 2026219 AMAQI
18th Jul 20262510 AMAQI
18th Jul 20262511 AMAQI
18th Jul 20262912 PMAQI
18th Jul 2026251 PMAQI
18th Jul 2026332 PMAQI
18th Jul 2026333 PMAQI
18th Jul 2026334 PMAQI
18th Jul 2026285 PMAQI
18th Jul 2026296 PMAQI
18th Jul 2026297 PMAQI
18th Jul 2026298 PMAQI
18th Jul 2026299 PMAQI
18th Jul 20262910 PMAQI
18th Jul 20262111 PMAQI
19th Jul 20262512 AMAQI
19th Jul 2026251 AMAQI
19th Jul 2026252 AMAQI
19th Jul 2026233 AMAQI
19th Jul 2026254 AMAQI
25°C16/34°C
19th Jul 2026255 AMAQI
19th Jul 2026276 AMAQI
19th Jul 2026167 AMAQI
19th Jul 2026258 AMAQI
19th Jul 2026169 AMAQI
19th Jul 20261710 AMAQI
19th Jul 20262711 AMAQI
19th Jul 20262312 PMAQI
19th Jul 2026211 PMAQI
19th Jul 2026212 PMAQI
19th Jul 2026213 PMAQI
19th Jul 2026164 PMAQI
19th Jul 2026235 PMAQI
19th Jul 2026166 PMAQI
19th Jul 2026147 PMAQI
19th Jul 2026258 PMAQI
19th Jul 2026239 PMAQI
19th Jul 20262110 PMAQI
19th Jul 20262111 PMAQI
20th Jul 20262112 AMAQI
20th Jul 2026211 AMAQI
20th Jul 2026212 AMAQI
20th Jul 2026213 AMAQI
20th Jul 2026254 AMAQI
27°C17/37°C
20th Jul 2026215 AMAQI
20th Jul 2026216 AMAQI
20th Jul 2026237 AMAQI
20th Jul 2026218 AMAQI
20th Jul 2026259 AMAQI
20th Jul 20262110 AMAQI
20th Jul 20262111 AMAQI
20th Jul 20263112 PMAQI
20th Jul 2026381 PMAQI
20th Jul 2026382 PMAQI
20th Jul 2026333 PMAQI
20th Jul 2026334 PMAQI
20th Jul 2026255 PMAQI
20th Jul 2026286 PMAQI
20th Jul 2026267 PMAQI
20th Jul 2026388 PMAQI
20th Jul 20263410 PMAQI
20th Jul 20263611 PMAQI
21st Jul 20263612 AMAQI
21st Jul 2026271 AMAQI
21st Jul 2026292 AMAQI
21st Jul 2026323 AMAQI
21st Jul 2026254 AMAQI
28°C19/38°C
21st Jul 2026275 AMAQI
21st Jul 2026216 AMAQI
21st Jul 2026277 AMAQI
21st Jul 2026318 AMAQI
21st Jul 2026339 AMAQI
21st Jul 20263810 AMAQI
21st Jul 20263611 AMAQI
21st Jul 20263612 PMAQI
21st Jul 2026361 PMAQI
21st Jul 2026312 PMAQI
21st Jul 2026333 PMAQI
21st Jul 2026294 PMAQI
21st Jul 2026255 PMAQI
21st Jul 2026216 PMAQI
21st Jul 2026197 PMAQI
21st Jul 2026218 PMAQI
21st Jul 2026219 PMAQI
21st Jul 20262610 PMAQI
21st Jul 20262111 PMAQI
22nd Jul 20262712 AMAQI
22nd Jul 2026211 AMAQI
22nd Jul 2026182 AMAQI
22nd Jul 2026253 AMAQI
22nd Jul 2026214 AMAQI
27°C20/36°C
22nd Jul 2026215 AMAQI
22nd Jul 2026256 AMAQI
22nd Jul 2026257 AMAQI
22nd Jul 2026258 AMAQI
22nd Jul 2026269 AMAQI
22nd Jul 20262510 AMAQI
22nd Jul 20262511 AMAQI
22nd Jul 20262512 PMAQI
22nd Jul 2026251 PMAQI
22nd Jul 2026192 PMAQI
22nd Jul 2026213 PMAQI
22nd Jul 2026214 PMAQI
22nd Jul 2026215 PMAQI
22nd Jul 2026226 PMAQI
22nd Jul 2026247 PMAQI
22nd Jul 2026218 PMAQI
22nd Jul 2026219 PMAQI
22nd Jul 20262310 PMAQI
22nd Jul 20262911 PMAQI
23rd Jul 20262712 AMAQI
23rd Jul 2026211 AMAQI
23rd Jul 2026252 AMAQI
23rd Jul 2026173 AMAQI
23rd Jul 2026284 AMAQI
23°C18/35°C
23rd Jul 2026195 AMAQI
23rd Jul 2026296 AMAQI
23rd Jul 2026277 AMAQI
23rd Jul 2026298 AMAQI
23rd Jul 2026299 AMAQI
23rd Jul 20262910 AMAQI
23rd Jul 20262911 AMAQI
23rd Jul 20262912 PMAQI
23rd Jul 2026291 PMAQI
23rd Jul 2026252 PMAQI
23rd Jul 2026253 PMAQI
23rd Jul 2026194 PMAQI
23rd Jul 2026215 PMAQI
23rd Jul 2026146 PMAQI
23rd Jul 2026197 PMAQI
23rd Jul 2026188 PMAQI
23rd Jul 2026259 PMAQI
23rd Jul 20262510 PMAQI
23rd Jul 20262911 PMAQI
24th Jul 20262912 AMAQI
24th Jul 2026181 AMAQI
24th Jul 2026252 AMAQI
24th Jul 2026253 AMAQI
24th Jul 2026254 AMAQI
23°C17/32°C
24th Jul 2026255 AMAQI
24th Jul 2026276 AMAQI
24th Jul 2026257 AMAQI
24th Jul 2026238 AMAQI
24th Jul 2026259 AMAQI
24th Jul 20262510 AMAQI
24th Jul 20262111 AMAQI
24th Jul 20262512 PMAQI
24th Jul 2026251 PMAQI
24th Jul 2026162 PMAQI
24th Jul 2026293 PMAQI
24th Jul 2026254 PMAQI
24th Jul 2026255 PMAQI
24th Jul 2026216 PMAQI
24th Jul 2026227 PMAQI
24th Jul 2026298 PMAQI
24th Jul 2026259 PMAQI
24th Jul 20262510 PMAQI
24th Jul 20262511 PMAQI
25th Jul 20262912 AMAQI
25th Jul 2026251 AMAQI
25th Jul 2026272 AMAQI
25th Jul 2026253 AMAQI
25th Jul 2026214 AMAQI
25°C17/36°C
25th Jul 2026235 AMAQI
25th Jul 2026216 AMAQI
25th Jul 2026257 AMAQI
25th Jul 2026268 AMAQI
25th Jul 2026259 AMAQI
25th Jul 20262510 AMAQI
25th Jul 20262511 AMAQI
25th Jul 20262512 PMAQI
25th Jul 2026181 PMAQI
25th Jul 2026212 PMAQI
25th Jul 2026283 PMAQI
25th Jul 2026214 PMAQI
25th Jul 2026255 PMAQI
25th Jul 2026236 PMAQI
25th Jul 2026127 PMAQI
25th Jul 2026218 PMAQI
25th Jul 2026219 PMAQI
25th Jul 20262110 PMAQI
25th Jul 20262111 PMAQI
26th Jul 20262112 AMAQI
26th Jul 2026161 AMAQI
26th Jul 2026182 AMAQI
26th Jul 2026213 AMAQI
26th Jul 2026234 AMAQI
26°C19/37°C
26th Jul 2026195 AMAQI
26th Jul 2026256 AMAQI
26th Jul 2026257 AMAQI
26th Jul 2026258 AMAQI
26th Jul 2026219 AMAQI
26th Jul 20262510 AMAQI
26th Jul 20262511 AMAQI
26th Jul 20262312 PMAQI
26th Jul 2026231 PMAQI
26th Jul 2026162 PMAQI
26th Jul 2026163 PMAQI
26th Jul 2026134 PMAQI
26th Jul 2026255 PMAQI
26th Jul 2026146 PMAQI
26th Jul 2026187 PMAQI
26th Jul 2026258 PMAQI
26th Jul 2026259 PMAQI
26th Jul 20263010 PMAQI
26th Jul 20261911 PMAQI
27th Jul 20262512 AMAQI
27th Jul 2026211 AMAQI
27th Jul 2026232 AMAQI
27th Jul 2026143 AMAQI
27th Jul 2026114 AMAQI
29°C20/38°C
27th Jul 2026115 AMAQI
27th Jul 2026196 AMAQI
27th Jul 2026247 AMAQI
27th Jul 2026328 AMAQI
27th Jul 2026219 AMAQI
27th Jul 20262110 AMAQI
27th Jul 20262111 AMAQI
27th Jul 20262112 PMAQI
27th Jul 2026211 PMAQI
27th Jul 2026362 PMAQI
27th Jul 2026373 PMAQI
27th Jul 2026354 PMAQI
27th Jul 2026375 PMAQI
27th Jul 2026236 PMAQI
27th Jul 2026247 PMAQI
27th Jul 2026168 PMAQI
27th Jul 2026189 PMAQI
27th Jul 20262110 PMAQI
27th Jul 20262111 PMAQI
28th Jul 20262912 AMAQI
28th Jul 2026331 AMAQI
28th Jul 2026362 AMAQI
28th Jul 2026383 AMAQI
28th Jul 2026344 AMAQI
25°C21/33°C
28th Jul 2026275 AMAQI
28th Jul 2026336 AMAQI
28th Jul 2026287 AMAQI
28th Jul 2026388 AMAQI
28th Jul 2026449 AMAQI
28th Jul 20263210 AMAQI
28th Jul 20262611 AMAQI
28th Jul 20262912 PMAQI
28th Jul 2026341 PMAQI
28th Jul 2026332 PMAQI
28th Jul 2026283 PMAQI
28th Jul 2026494 PMAQI
28th Jul 2026345 PMAQI
28th Jul 2026346 PMAQI
28th Jul 2026347 PMAQI
28th Jul 2026398 PMAQI
28th Jul 2026219 PMAQI
28th Jul 20262110 PMAQI
28th Jul 20262111 PMAQI
29th Jul 20262112 AMAQI
29th Jul 2026251 AMAQI
29th Jul 2026252 AMAQI
29th Jul 2026253 AMAQI
29th Jul 2026274 AMAQI
23°C19/34°C
29th Jul 2026295 AMAQI
29th Jul 2026496 AMAQI
29th Jul 2026467 AMAQI
29th Jul 2026548 AMAQI
29th Jul 2026489 AMAQI
29th Jul 20263810 AMAQI
29th Jul 20263511 AMAQI
29th Jul 20262012 PMAQI
29th Jul 2026251 PMAQI
29th Jul 2026222 PMAQI
29th Jul 2026253 PMAQI
29th Jul 2026384 PMAQI
29th Jul 2026285 PMAQI
29th Jul 2026776 PMAQI
29th Jul 2026507 PMAQI
29th Jul 2026218 PMAQI
29th Jul 2026199 PMAQI
29th Jul 20263810 PMAQI
29th Jul 20264811 PMAQI
30th Jul 20262912 AMAQI
30th Jul 2026251 AMAQI
30th Jul 2026252 AMAQI
30th Jul 2026253 AMAQI
30th Jul 2026224 AMAQI
22°C18/34°C
30th Jul 2026215 AMAQI
30th Jul 2026206 AMAQI
30th Jul 2026217 AMAQI
30th Jul 2026218 AMAQI
30th Jul 2026299 AMAQI
30th Jul 20263310 AMAQI
30th Jul 20265211 AMAQI
30th Jul 20265412 PMAQI
30th Jul 2026541 PMAQI
30th Jul 2026502 PMAQI
30th Jul 2026343 PMAQI
30th Jul 2026234 PMAQI
30th Jul 2026215 PMAQI
30th Jul 2026216 PMAQI
30th Jul 2026307 PMAQI
30th Jul 2026258 PMAQI
30th Jul 2026259 PMAQI
30th Jul 20262310 PMAQI
30th Jul 20262111 PMAQI
31st Jul 20262512 AMAQI
31st Jul 2026241 AMAQI
31st Jul 2026212 AMAQI
31st Jul 2026213 AMAQI
31st Jul 2026214 AMAQI
25°C17/34°C
31st Jul 2026215 AMAQI
31st Jul 2026216 AMAQI
31st Jul 2026217 AMAQI
31st Jul 2026368 AMAQI
31st Jul 2026359 AMAQI
31st Jul 20262510 AMAQI
31st Jul 20262511 AMAQI
31st Jul 20262212 PMAQI
31st Jul 2026251 PMAQI
31st Jul 2026252 PMAQI
31st Jul 2026233 PMAQI
31st Jul 2026214 PMAQI
31st Jul 2026235 PMAQI
31st Jul 2026236 PMAQI
31st Jul 2026217 PMAQI
31st Jul 2026218 PMAQI
31st Jul 2026249 PMAQI
31st Jul 20262410 PMAQI
31st Jul 20262511 PMAQI
1st Aug 20262312 AMAQI
1st Aug 2026231 AMAQI
1st Aug 2026212 AMAQI
1st Aug 2026273 AMAQI
1st Aug 2026254 AMAQI
23°C18/32°C
1st Aug 2026255 AMAQI
1st Aug 2026256 AMAQI
1st Aug 2026257 AMAQI
1st Aug 2026238 AMAQI
1st Aug 2026239 AMAQI
1st Aug 20262510 AMAQI
1st Aug 20262711 AMAQI
1st Aug 20262512 PMAQI
1st Aug 2026231 PMAQI
1st Aug 2026252 PMAQI
1st Aug 2026273 PMAQI
1st Aug 2026234 PMAQI
1st Aug 2026195 PMAQI
1st Aug 2026196 PMAQI
1st Aug 2026167 PMAQI
1st Aug 2026218 PMAQI
1st Aug 2026189 PMAQI
1st Aug 20262310 PMAQI
1st Aug 20262111 PMAQI
2nd Aug 20262112 AMAQI
2nd Aug 2026241 AMAQI
2nd Aug 2026202 AMAQI
2nd Aug 2026213 AMAQI
2nd Aug 2026194 AMAQI
25°C16/34°C
2nd Aug 2026195 AMAQI
2nd Aug 2026216 AMAQI
2nd Aug 2026217 AMAQI
2nd Aug 2026218 AMAQI
2nd Aug 2026219 AMAQI
2nd Aug 20262110 AMAQI
2nd Aug 20262311 AMAQI
2nd Aug 20262312 PMAQI
2nd Aug 2026211 PMAQI
2nd Aug 2026212 PMAQI
2nd Aug 2026213 PMAQI
2nd Aug 2026214 PMAQI
2nd Aug 2026295 PMAQI
2nd Aug 2026236 PMAQI
2nd Aug 2026387 PMAQI
2nd Aug 2026388 PMAQI
2nd Aug 2026339 PMAQI
2nd Aug 20262910 PMAQI
2nd Aug 20261911 PMAQI
3rd Aug 20263812 AMAQI
3rd Aug 2026381 AMAQI
3rd Aug 2026422 AMAQI
3rd Aug 2026213 AMAQI
3rd Aug 2026294 AMAQI
28°C18/37°C
3rd Aug 2026315 AMAQI
3rd Aug 2026256 AMAQI
3rd Aug 2026237 AMAQI
3rd Aug 2026518 AMAQI
3rd Aug 2026869 AMAQI
3rd Aug 20268410 AMAQI
3rd Aug 20267211 AMAQI
3rd Aug 20266612 PMAQI
3rd Aug 2026531 PMAQI
3rd Aug 2026382 PMAQI
3rd Aug 2026283 PMAQI
3rd Aug 2026334 PMAQI
3rd Aug 2026385 PMAQI
3rd Aug 2026446 PMAQI
3rd Aug 2026487 PMAQI
3rd Aug 2026648 PMAQI
3rd Aug 2026599 PMAQI
3rd Aug 20266110 PMAQI
3rd Aug 20266711 PMAQI
4th Aug 20266312 AMAQI
4th Aug 2026591 AMAQI
4th Aug 2026532 AMAQI
4th Aug 2026513 AMAQI
4th Aug 2026524 AMAQI
28°C21/37°C
4th Aug 2026525 AMAQI
4th Aug 2026536 AMAQI
4th Aug 2026567 AMAQI
4th Aug 2026528 AMAQI
4th Aug 2026539 AMAQI
4th Aug 20265110 AMAQI
4th Aug 20265111 AMAQI
4th Aug 20265312 PMAQI
4th Aug 2026511 PMAQI
4th Aug 2026532 PMAQI
4th Aug 2026543 PMAQI
4th Aug 2026544 PMAQI
4th Aug 2026535 PMAQI
4th Aug 2026566 PMAQI
4th Aug 2026547 PMAQI
4th Aug 2026538 PMAQI
4th Aug 2026559 PMAQI
4th Aug 20265410 PMAQI
4th Aug 20265311 PMAQI
5th Aug 20264912 AMAQI
5th Aug 2026481 AMAQI
5th Aug 2026422 AMAQI
5th Aug 2026423 AMAQI
5th Aug 2026424 AMAQI
20°C16/26°C
5th Aug 2026465 AMAQI
5th Aug 2026446 AMAQI
5th Aug 2026447 AMAQI
5th Aug 2026448 AMAQI
5th Aug 2026489 AMAQI
5th Aug 20264610 AMAQI
5th Aug 20264611 AMAQI
5th Aug 20264812 PMAQI
5th Aug 2026481 PMAQI
5th Aug 2026502 PMAQI
5th Aug 2026503 PMAQI
5th Aug 2026524 PMAQI
5th Aug 2026485 PMAQI
5th Aug 2026506 PMAQI
5th Aug 2026427 PMAQI
5th Aug 2026468 PMAQI
5th Aug 2026449 PMAQI
5th Aug 20264410 PMAQI
5th Aug 20264011 PMAQI
6th Aug 20264412 AMAQI
6th Aug 2026441 AMAQI
6th Aug 2026422 AMAQI
6th Aug 2026403 AMAQI
6th Aug 2026364 AMAQI
21°C12/30°C
6th Aug 2026385 AMAQI
5 AM6th Aug 2026366 AMAQI
6th Aug 2026527 AMAQI
6th Aug 2026648 AMAQI
6th Aug 2026789 AMAQI
6th Aug 20266810 AMAQI
6th Aug 20267011 AMAQI
6th Aug 20267212 PMAQI
12 PM6th Aug 2026711 PMAQI
6th Aug 2026572 PMAQI
6th Aug 2026483 PMAQI
6th Aug 2026424 PMAQI
6th Aug 2026385 PMAQI
6th Aug 2026386 PMAQI
6th Aug 2026407 PMAQI
6th Aug 2026388 PMAQI
8 PM6th Aug 2026389 PMAQI
6th Aug 20264010 PMAQI
6th Aug 20264111 PMAQI
12 AM
4 AM
25°C15/35°C
Day time
Avg. Highest Time
12 PM
31AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
5 AM
23AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 12 PM (Avg. 31), while the lowest AQI was between 5 AM to 5 AM (Avg. 23).
Night time
Avg. Highest Time
10 PM
27AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
3 AM - 4 AM
23AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 PM to 10 PM (Avg. 27), while the lowest AQI was between 3 AM to 4 AM (Avg. 23).
2026 Days Vs Air Quality
Centennial, Colorado, United States
2026
100%
214
0.4%
1
Total number of days with different AQI categories in last 218 days in 2026 (147 days remaining)
Good
214 DaysModerate
1 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2026, 100% of 218 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 2026
AQI (US)
PM₂.₅
PM₁₀
CO
SO₂
NO₂
O₃
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
21AQI (US)
21AQI (US)
2nd January 2026
18AQI (US)
18AQI (US)
3rd January 2026
21AQI (US)
21AQI (US)
4th January 2026
13AQI (US)
13AQI (US)
5th January 2026
32AQI (US)
32AQI (US)
6th January 2026
14AQI (US)
14AQI (US)
7th January 2026
17AQI (US)
17AQI (US)
8th January 2026
19AQI (US)
19AQI (US)
9th January 2026
20AQI (US)
20AQI (US)
10th January 2026
14AQI (US)
14AQI (US)
11th January 2026
11AQI (US)
11AQI (US)
12th January 2026
19AQI (US)
19AQI (US)
13th January 2026
17AQI (US)
17AQI (US)
14th January 2026
13AQI (US)
13AQI (US)
15th January 2026
17AQI (US)
17AQI (US)
16th January 2026
22AQI (US)
22AQI (US)
17th January 2026
12AQI (US)
12AQI (US)
18th January 2026
13AQI (US)
13AQI (US)
19th January 2026
14AQI (US)
14AQI (US)
20th January 2026
16AQI (US)
16AQI (US)
21st January 2026
15AQI (US)
15AQI (US)
22nd January 2026
21AQI (US)
21AQI (US)
23rd January 2026
20AQI (US)
20AQI (US)
24th January 2026
20AQI (US)
20AQI (US)
25th January 2026
20AQI (US)
20AQI (US)
26th January 2026
17AQI (US)
17AQI (US)
27th January 2026
19AQI (US)
19AQI (US)
28th January 2026
26AQI (US)
26AQI (US)
29th January 2026
29AQI (US)
29AQI (US)
30th January 2026
25AQI (US)
25AQI (US)
31st January 2026
19AQI (US)
19AQI (US)
1st February 2026
21AQI (US)
21AQI (US)
2nd February 2026
24AQI (US)
24AQI (US)
3rd February 2026
19AQI (US)
19AQI (US)
4th February 2026
20AQI (US)
20AQI (US)
5th February 2026
19AQI (US)
19AQI (US)
6th February 2026
18AQI (US)
18AQI (US)
7th February 2026
21AQI (US)
21AQI (US)
8th February 2026
28AQI (US)
28AQI (US)
9th February 2026
27AQI (US)
27AQI (US)
10th February 2026
19AQI (US)
19AQI (US)
11th February 2026
25AQI (US)
25AQI (US)
12th February 2026
25AQI (US)
25AQI (US)
13th February 2026
22AQI (US)
22AQI (US)
14th February 2026
21AQI (US)
21AQI (US)
15th February 2026
19AQI (US)
19AQI (US)
16th February 2026
27AQI (US)
27AQI (US)
17th February 2026
29AQI (US)
29AQI (US)
18th February 2026
19AQI (US)
19AQI (US)
19th February 2026
23AQI (US)
23AQI (US)
20th February 2026
18AQI (US)
18AQI (US)
21st February 2026
17AQI (US)
17AQI (US)
22nd February 2026
16AQI (US)
16AQI (US)
23rd February 2026
21AQI (US)
21AQI (US)
24th February 2026
23AQI (US)
23AQI (US)
25th February 2026
21AQI (US)
21AQI (US)
26th February 2026
26AQI (US)
26AQI (US)
27th February 2026
18AQI (US)
18AQI (US)
28th February 2026
16AQI (US)
16AQI (US)
1st March 2026
18AQI (US)
18AQI (US)
2nd March 2026
24AQI (US)
24AQI (US)
3rd March 2026
19AQI (US)
19AQI (US)
4th March 2026
16AQI (US)
16AQI (US)
5th March 2026
22AQI (US)
22AQI (US)
6th March 2026
18AQI (US)
18AQI (US)
7th March 2026
20AQI (US)
20AQI (US)
8th March 2026
22AQI (US)
22AQI (US)
9th March 2026
18AQI (US)
18AQI (US)
10th March 2026
23AQI (US)
23AQI (US)
11th March 2026
15AQI (US)
15AQI (US)
12th March 2026
19AQI (US)
19AQI (US)
13th March 2026
20AQI (US)
20AQI (US)
14th March 2026
19AQI (US)
19AQI (US)
15th March 2026
15AQI (US)
15AQI (US)
16th March 2026
20AQI (US)
20AQI (US)
17th March 2026
18AQI (US)
18AQI (US)
18th March 2026
20AQI (US)
20AQI (US)
19th March 2026
21AQI (US)
21AQI (US)
20th March 2026
24AQI (US)
24AQI (US)
21st March 2026
15AQI (US)
15AQI (US)
22nd March 2026
27AQI (US)
27AQI (US)
23rd March 2026
27AQI (US)
27AQI (US)
24th March 2026
23AQI (US)
23AQI (US)
25th March 2026
20AQI (US)
20AQI (US)
26th March 2026
45AQI (US)
45AQI (US)
27th March 2026
23AQI (US)
23AQI (US)
28th March 2026
22AQI (US)
22AQI (US)
29th March 2026
22AQI (US)
22AQI (US)
30th March 2026
23AQI (US)
23AQI (US)
31st March 2026
32AQI (US)
32AQI (US)
1st April 2026
33AQI (US)
33AQI (US)
2nd April 2026
18AQI (US)
18AQI (US)
3rd April 2026
31AQI (US)
31AQI (US)
4th April 2026
16AQI (US)
16AQI (US)
5th April 2026
23AQI (US)
23AQI (US)
6th April 2026
17AQI (US)
17AQI (US)
7th April 2026
22AQI (US)
22AQI (US)
8th April 2026
23AQI (US)
23AQI (US)
9th April 2026
26AQI (US)
26AQI (US)
10th April 2026
35AQI (US)
35AQI (US)
11th April 2026
21AQI (US)
21AQI (US)
12th April 2026
14AQI (US)
14AQI (US)
13th April 2026
16AQI (US)
16AQI (US)
14th April 2026
18AQI (US)
18AQI (US)
15th April 2026
23AQI (US)
23AQI (US)
16th April 2026
17AQI (US)
17AQI (US)
17th April 2026
18th April 2026
20AQI (US)
20AQI (US)
19th April 2026
17AQI (US)
17AQI (US)
20th April 2026
23AQI (US)
23AQI (US)
21st April 2026
21AQI (US)
21AQI (US)
22nd April 2026
23rd April 2026
25AQI (US)
25AQI (US)
24th April 2026
17AQI (US)
17AQI (US)
25th April 2026
25AQI (US)
25AQI (US)
26th April 2026
18AQI (US)
18AQI (US)
27th April 2026
15AQI (US)
15AQI (US)
28th April 2026
17AQI (US)
17AQI (US)
29th April 2026
15AQI (US)
15AQI (US)
30th April 2026
16AQI (US)
16AQI (US)
1st May 2026
16AQI (US)
16AQI (US)
2nd May 2026
13AQI (US)
13AQI (US)
3rd May 2026
13AQI (US)
13AQI (US)
4th May 2026
18AQI (US)
18AQI (US)
5th May 2026
24AQI (US)
24AQI (US)
6th May 2026
22AQI (US)
22AQI (US)
7th May 2026
14AQI (US)
14AQI (US)
8th May 2026
15AQI (US)
15AQI (US)
9th May 2026
10th May 2026
24AQI (US)
24AQI (US)
11th May 2026
17AQI (US)
17AQI (US)
12th May 2026
24AQI (US)
24AQI (US)
13th May 2026
40AQI (US)
40AQI (US)
14th May 2026
24AQI (US)
24AQI (US)
15th May 2026
25AQI (US)
25AQI (US)
16th May 2026
23AQI (US)
23AQI (US)
17th May 2026
17AQI (US)
17AQI (US)
18th May 2026
32AQI (US)
32AQI (US)
19th May 2026
27AQI (US)
27AQI (US)
20th May 2026
15AQI (US)
15AQI (US)
21st May 2026
17AQI (US)
17AQI (US)
22nd May 2026
15AQI (US)
15AQI (US)
23rd May 2026
19AQI (US)
19AQI (US)
24th May 2026
16AQI (US)
16AQI (US)
25th May 2026
16AQI (US)
16AQI (US)
26th May 2026
17AQI (US)
17AQI (US)
27th May 2026
16AQI (US)
16AQI (US)
28th May 2026
17AQI (US)
17AQI (US)
29th May 2026
17AQI (US)
17AQI (US)
30th May 2026
13AQI (US)
13AQI (US)
31st May 2026
15AQI (US)
15AQI (US)
1st June 2026
15AQI (US)
15AQI (US)
2nd June 2026
15AQI (US)
15AQI (US)
3rd June 2026
21AQI (US)
21AQI (US)
4th June 2026
16AQI (US)
16AQI (US)
5th June 2026
22AQI (US)
22AQI (US)
6th June 2026
23AQI (US)
23AQI (US)
7th June 2026
19AQI (US)
19AQI (US)
8th June 2026
25AQI (US)
25AQI (US)
9th June 2026
23AQI (US)
23AQI (US)
10th June 2026
24AQI (US)
24AQI (US)
11th June 2026
26AQI (US)
26AQI (US)
12th June 2026
21AQI (US)
21AQI (US)
13th June 2026
23AQI (US)
23AQI (US)
14th June 2026
15AQI (US)
15AQI (US)
15th June 2026
22AQI (US)
22AQI (US)
16th June 2026
22AQI (US)
22AQI (US)
17th June 2026
24AQI (US)
24AQI (US)
18th June 2026
30AQI (US)
30AQI (US)
19th June 2026
37AQI (US)
37AQI (US)
20th June 2026
44AQI (US)
44AQI (US)
21st June 2026
30AQI (US)
30AQI (US)
22nd June 2026
23AQI (US)
23AQI (US)
23rd June 2026
37AQI (US)
37AQI (US)
24th June 2026
27AQI (US)
27AQI (US)
25th June 2026
18AQI (US)
18AQI (US)
26th June 2026
13AQI (US)
13AQI (US)
27th June 2026
15AQI (US)
15AQI (US)
28th June 2026
37AQI (US)
37AQI (US)
29th June 2026
26AQI (US)
26AQI (US)
30th June 2026
34AQI (US)
34AQI (US)
1st July 2026
39AQI (US)
39AQI (US)
2nd July 2026
35AQI (US)
35AQI (US)
3rd July 2026
32AQI (US)
32AQI (US)
4th July 2026
33AQI (US)
33AQI (US)
5th July 2026
35AQI (US)
35AQI (US)
6th July 2026
43AQI (US)
43AQI (US)
7th July 2026
39AQI (US)
39AQI (US)
8th July 2026
22AQI (US)
22AQI (US)
9th July 2026
16AQI (US)
16AQI (US)
10th July 2026
16AQI (US)
16AQI (US)
11th July 2026
14AQI (US)
14AQI (US)
12th July 2026
14AQI (US)
14AQI (US)
13th July 2026
19AQI (US)
19AQI (US)
14th July 2026
22AQI (US)
22AQI (US)
15th July 2026
24AQI (US)
24AQI (US)
16th July 2026
24AQI (US)
24AQI (US)
17th July 2026
21AQI (US)
21AQI (US)
18th July 2026
27AQI (US)
27AQI (US)
19th July 2026
22AQI (US)
22AQI (US)
20th July 2026
27AQI (US)
27AQI (US)
21st July 2026
28AQI (US)
28AQI (US)
22nd July 2026
23AQI (US)
23AQI (US)
23rd July 2026
24AQI (US)
24AQI (US)
24th July 2026
24AQI (US)
24AQI (US)
25th July 2026
23AQI (US)
23AQI (US)
26th July 2026
21AQI (US)
21AQI (US)
27th July 2026
23AQI (US)
23AQI (US)
28th July 2026
32AQI (US)
32AQI (US)
29th July 2026
35AQI (US)
35AQI (US)
30th July 2026
29AQI (US)
29AQI (US)
31st July 2026
24AQI (US)
24AQI (US)
1st August 2026
23AQI (US)
23AQI (US)
2nd August 2026
24AQI (US)
24AQI (US)
3rd August 2026
47AQI (US)
47AQI (US)
4th August 2026
54AQI (US)
54AQI (US)
5th August 2026
46AQI (US)
46AQI (US)
6th August 2026
49AQI (US)
49AQI (US)
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026
19AQI (US)
22AQI (US)
22AQI (US)
21AQI (US)
19AQI (US)
24AQI (US)
26AQI (US)
41AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202622AQI (US)
31
28
31
28
30
30
31
5
1
214
1
Highest AQI (US) recorded in
August41AQI (US)
Lowest AQI (US) recorded in
May19AQI (US)
202529AQI (US)
6
30
31
29
1
29
2
29
2
27
3
30
1
30
31
272
9
Highest AQI (US) recorded in
July36AQI (US)
Lowest AQI (US) recorded in
May24AQI (US)
Most & Least Polluted Years Over the Last 2 Years
Most Polluted Year Recorded
2025(Avg.)
29AQI (US)Least Polluted Year Recorded
2026(Avg.)
22AQI (US)Centennial's annual 2026 AQI (US) (22) shows an average percentage change of -24.1% (improved AQI (US)) compared to previous years: 2025 (29).
