Littleton, 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
Littleton, Colorado, United States
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
6th Aug 2025
53AQILowest AQI recorded on
3rd Aug 2025
22AQISame Day Analysis (10th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 36 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 10th Aug - 11th Aug 2025
Littleton, Colorado, United States
AQI
Day
Night
.
5 AM10th Aug 2025
8 PM
4 AM11th Aug 2025
Day time
Avg. Highest Time
7AM10th Aug
42AQI
Avg. Lowest Time
1PM10th Aug
30AQI
Night time
Avg. Highest Time
9PM10th Aug
38AQI
Avg. Lowest Time
4AM11th Aug
25AQI
In the last 24 hours,
Littleton's AQI reached its highest point of 42 at 7 AM during the Day, while the lowest point, 25, was recorded at 4 AM during the Night between 10th Aug and 11th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Littleton, Colorado, United States
JulAug
12th - 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 - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th
Day
Night
12th Jul 2025585 AMAQI
12th Jul 2025586 AMAQI
12th Jul 2025587 AMAQI
12th Jul 2025588 AMAQI
12th Jul 2025579 AMAQI
12th Jul 20255610 AMAQI
12th Jul 20255411 AMAQI
12th Jul 20255312 PMAQI
12th Jul 2025491 PMAQI
12th Jul 2025492 PMAQI
12th Jul 2025513 PMAQI
12th Jul 2025514 PMAQI
12th Jul 2025515 PMAQI
12th Jul 2025516 PMAQI
12th Jul 2025507 PMAQI
12th Jul 2025508 PMAQI
12th Jul 2025459 PMAQI
12th Jul 20254510 PMAQI
12th Jul 20254711 PMAQI
13th Jul 20254712 AMAQI
13th Jul 2025491 AMAQI
13th Jul 2025492 AMAQI
13th Jul 2025493 AMAQI
13th Jul 2025464 AMAQI
22°C16/30°C
13th Jul 2025405 AMAQI
13th Jul 2025386 AMAQI
13th Jul 2025397 AMAQI
13th Jul 2025388 AMAQI
13th Jul 2025389 AMAQI
13th Jul 20253810 AMAQI
13th Jul 20253911 AMAQI
13th Jul 20253812 PMAQI
13th Jul 2025391 PMAQI
13th Jul 2025402 PMAQI
13th Jul 2025423 PMAQI
13th Jul 2025394 PMAQI
13th Jul 2025385 PMAQI
13th Jul 2025386 PMAQI
13th Jul 2025407 PMAQI
13th Jul 2025388 PMAQI
13th Jul 2025349 PMAQI
13th Jul 20253310 PMAQI
13th Jul 20253511 PMAQI
14th Jul 20253412 AMAQI
14th Jul 2025341 AMAQI
14th Jul 2025342 AMAQI
14th Jul 2025343 AMAQI
14th Jul 2025324 AMAQI
26°C17/35°C
14th Jul 2025265 AMAQI
14th Jul 2025226 AMAQI
14th Jul 2025237 AMAQI
14th Jul 2025248 AMAQI
14th Jul 2025259 AMAQI
14th Jul 20252410 AMAQI
14th Jul 20252411 AMAQI
14th Jul 20252412 PMAQI
14th Jul 2025221 PMAQI
14th Jul 2025212 PMAQI
14th Jul 2025243 PMAQI
14th Jul 2025234 PMAQI
14th Jul 2025235 PMAQI
14th Jul 2025226 PMAQI
14th Jul 2025237 PMAQI
14th Jul 2025238 PMAQI
14th Jul 2025219 PMAQI
14th Jul 20252210 PMAQI
14th Jul 20252111 PMAQI
15th Jul 20252212 AMAQI
15th Jul 2025241 AMAQI
15th Jul 2025212 AMAQI
15th Jul 2025223 AMAQI
15th Jul 2025224 AMAQI
26°C18/36°C
15th Jul 2025195 AMAQI
15th Jul 2025196 AMAQI
15th Jul 2025217 AMAQI
15th Jul 2025228 AMAQI
15th Jul 2025269 AMAQI
15th Jul 20252910 AMAQI
15th Jul 20253311 AMAQI
15th Jul 20253412 PMAQI
15th Jul 2025311 PMAQI
15th Jul 2025302 PMAQI
15th Jul 2025293 PMAQI
15th Jul 2025284 PMAQI
15th Jul 2025285 PMAQI
15th Jul 2025306 PMAQI
15th Jul 2025257 PMAQI
15th Jul 2025258 PMAQI
15th Jul 2025309 PMAQI
15th Jul 20252910 PMAQI
15th Jul 20253011 PMAQI
16th Jul 20253112 AMAQI
16th Jul 2025321 AMAQI
16th Jul 2025322 AMAQI
16th Jul 2025313 AMAQI
16th Jul 2025324 AMAQI
26°C19/36°C
16th Jul 2025335 AMAQI
16th Jul 2025346 AMAQI
16th Jul 2025357 AMAQI
16th Jul 2025368 AMAQI
16th Jul 2025399 AMAQI
16th Jul 20254010 AMAQI
16th Jul 20254211 AMAQI
16th Jul 20254212 PMAQI
16th Jul 2025431 PMAQI
16th Jul 2025432 PMAQI
16th Jul 2025443 PMAQI
16th Jul 2025464 PMAQI
16th Jul 2025485 PMAQI
16th Jul 2025486 PMAQI
16th Jul 2025427 PMAQI
16th Jul 2025418 PMAQI
16th Jul 2025469 PMAQI
16th Jul 20254510 PMAQI
16th Jul 20254411 PMAQI
17th Jul 20254512 AMAQI
17th Jul 2025501 AMAQI
17th Jul 2025512 AMAQI
17th Jul 2025513 AMAQI
17th Jul 2025504 AMAQI
20°C16/27°C
17th Jul 2025485 AMAQI
17th Jul 2025476 AMAQI
17th Jul 2025477 AMAQI
17th Jul 2025478 AMAQI
17th Jul 2025489 AMAQI
17th Jul 20255010 AMAQI
17th Jul 20255111 AMAQI
17th Jul 20255312 PMAQI
17th Jul 2025531 PMAQI
17th Jul 2025542 PMAQI
17th Jul 2025543 PMAQI
17th Jul 2025534 PMAQI
17th Jul 2025505 PMAQI
17th Jul 2025506 PMAQI
17th Jul 2025517 PMAQI
17th Jul 2025508 PMAQI
17th Jul 2025479 PMAQI
17th Jul 20254710 PMAQI
17th Jul 20254611 PMAQI
18th Jul 20254512 AMAQI
18th Jul 2025441 AMAQI
18th Jul 2025442 AMAQI
18th Jul 2025453 AMAQI
18th Jul 2025454 AMAQI
22°C16/32°C
18th Jul 2025455 AMAQI
18th Jul 2025486 AMAQI
18th Jul 2025497 AMAQI
18th Jul 2025508 AMAQI
18th Jul 2025509 AMAQI
18th Jul 20254910 AMAQI
18th Jul 20254911 AMAQI
18th Jul 20255012 PMAQI
18th Jul 2025511 PMAQI
18th Jul 2025502 PMAQI
18th Jul 2025483 PMAQI
18th Jul 2025494 PMAQI
18th Jul 2025495 PMAQI
18th Jul 2025496 PMAQI
18th Jul 2025477 PMAQI
18th Jul 2025478 PMAQI
18th Jul 2025469 PMAQI
18th Jul 20254510 PMAQI
18th Jul 20254511 PMAQI
19th Jul 20254412 AMAQI
19th Jul 2025441 AMAQI
19th Jul 2025422 AMAQI
19th Jul 2025413 AMAQI
19th Jul 2025404 AMAQI
24°C17/34°C
19th Jul 2025385 AMAQI
19th Jul 2025356 AMAQI
19th Jul 2025377 AMAQI
19th Jul 2025378 AMAQI
19th Jul 2025379 AMAQI
19th Jul 20253710 AMAQI
19th Jul 20253711 AMAQI
19th Jul 20253712 PMAQI
19th Jul 2025361 PMAQI
19th Jul 2025362 PMAQI
19th Jul 2025363 PMAQI
19th Jul 2025344 PMAQI
19th Jul 2025345 PMAQI
19th Jul 2025326 PMAQI
19th Jul 2025357 PMAQI
19th Jul 2025358 PMAQI
19th Jul 2025289 PMAQI
19th Jul 20252810 PMAQI
19th Jul 20252711 PMAQI
20th Jul 20252612 AMAQI
20th Jul 2025271 AMAQI
20th Jul 2025272 AMAQI
20th Jul 2025263 AMAQI
20th Jul 2025264 AMAQI
24°C17/34°C
20th Jul 2025225 AMAQI
20th Jul 2025226 AMAQI
20th Jul 2025227 AMAQI
20th Jul 2025238 AMAQI
20th Jul 2025259 AMAQI
20th Jul 20252310 AMAQI
20th Jul 20252311 AMAQI
20th Jul 20252312 PMAQI
20th Jul 2025221 PMAQI
20th Jul 2025232 PMAQI
20th Jul 2025243 PMAQI
20th Jul 2025254 PMAQI
20th Jul 2025245 PMAQI
20th Jul 2025246 PMAQI
20th Jul 2025237 PMAQI
20th Jul 2025238 PMAQI
20th Jul 2025229 PMAQI
20th Jul 20252210 PMAQI
20th Jul 20252311 PMAQI
21st Jul 20252212 AMAQI
21st Jul 2025211 AMAQI
21st Jul 2025202 AMAQI
21st Jul 2025213 AMAQI
21st Jul 2025214 AMAQI
25°C19/34°C
21st Jul 2025195 AMAQI
21st Jul 2025196 AMAQI
21st Jul 2025217 AMAQI
21st Jul 2025208 AMAQI
21st Jul 2025219 AMAQI
21st Jul 20252310 AMAQI
21st Jul 20252311 AMAQI
21st Jul 20252312 PMAQI
21st Jul 2025231 PMAQI
21st Jul 2025242 PMAQI
21st Jul 2025243 PMAQI
21st Jul 2025244 PMAQI
21st Jul 2025255 PMAQI
21st Jul 2025256 PMAQI
21st Jul 2025227 PMAQI
21st Jul 2025228 PMAQI
21st Jul 2025229 PMAQI
21st Jul 20252210 PMAQI
21st Jul 20252311 PMAQI
22nd Jul 20252212 AMAQI
22nd Jul 2025201 AMAQI
22nd Jul 2025202 AMAQI
22nd Jul 2025203 AMAQI
22nd Jul 2025184 AMAQI
26°C19/37°C
22nd Jul 2025185 AMAQI
22nd Jul 2025166 AMAQI
22nd Jul 2025177 AMAQI
22nd Jul 2025178 AMAQI
22nd Jul 2025199 AMAQI
22nd Jul 20252210 AMAQI
22nd Jul 20252011 AMAQI
22nd Jul 20252112 PMAQI
22nd Jul 2025221 PMAQI
22nd Jul 2025232 PMAQI
22nd Jul 2025243 PMAQI
22nd Jul 2025234 PMAQI
22nd Jul 2025235 PMAQI
22nd Jul 2025226 PMAQI
22nd Jul 2025217 PMAQI
22nd Jul 2025218 PMAQI
22nd Jul 2025219 PMAQI
22nd Jul 20252010 PMAQI
22nd Jul 20252011 PMAQI
23rd Jul 20251912 AMAQI
23rd Jul 2025171 AMAQI
23rd Jul 2025172 AMAQI
23rd Jul 2025153 AMAQI
23rd Jul 2025164 AMAQI
25°C19/35°C
23rd Jul 2025135 AMAQI
23rd Jul 2025136 AMAQI
23rd Jul 2025147 AMAQI
23rd Jul 2025158 AMAQI
23rd Jul 2025169 AMAQI
23rd Jul 20251710 AMAQI
23rd Jul 20251911 AMAQI
23rd Jul 20252112 PMAQI
23rd Jul 2025231 PMAQI
23rd Jul 2025252 PMAQI
23rd Jul 2025263 PMAQI
23rd Jul 2025284 PMAQI
23rd Jul 2025295 PMAQI
23rd Jul 2025286 PMAQI
23rd Jul 2025217 PMAQI
23rd Jul 2025218 PMAQI
23rd Jul 2025269 PMAQI
23rd Jul 20252510 PMAQI
23rd Jul 20252511 PMAQI
24th Jul 20252112 AMAQI
24th Jul 2025221 AMAQI
24th Jul 2025202 AMAQI
24th Jul 2025213 AMAQI
24th Jul 2025224 AMAQI
24°C18/32°C
24th Jul 2025215 AMAQI
24th Jul 2025216 AMAQI
24th Jul 2025217 AMAQI
24th Jul 2025228 AMAQI
24th Jul 2025259 AMAQI
24th Jul 20252710 AMAQI
24th Jul 20252611 AMAQI
24th Jul 20252612 PMAQI
24th Jul 2025251 PMAQI
24th Jul 2025252 PMAQI
24th Jul 2025263 PMAQI
24th Jul 2025254 PMAQI
24th Jul 2025245 PMAQI
24th Jul 2025246 PMAQI
24th Jul 2025237 PMAQI
24th Jul 2025238 PMAQI
24th Jul 2025229 PMAQI
24th Jul 20252510 PMAQI
24th Jul 20252411 PMAQI
25th Jul 20252712 AMAQI
25th Jul 2025271 AMAQI
25th Jul 2025282 AMAQI
25th Jul 2025283 AMAQI
25th Jul 2025274 AMAQI
21°C16/33°C
25th Jul 2025285 AMAQI
25th Jul 2025296 AMAQI
25th Jul 2025297 AMAQI
25th Jul 2025318 AMAQI
25th Jul 2025339 AMAQI
25th Jul 20253610 AMAQI
25th Jul 20253611 AMAQI
25th Jul 20253612 PMAQI
25th Jul 2025361 PMAQI
25th Jul 2025402 PMAQI
25th Jul 2025413 PMAQI
25th Jul 2025414 PMAQI
25th Jul 2025425 PMAQI
25th Jul 2025456 PMAQI
25th Jul 2025347 PMAQI
25th Jul 2025338 PMAQI
25th Jul 2025439 PMAQI
25th Jul 20253810 PMAQI
25th Jul 20254011 PMAQI
26th Jul 20254012 AMAQI
26th Jul 2025401 AMAQI
26th Jul 2025402 AMAQI
26th Jul 2025413 AMAQI
26th Jul 2025414 AMAQI
23°C16/34°C
26th Jul 2025445 AMAQI
26th Jul 2025466 AMAQI
26th Jul 2025437 AMAQI
26th Jul 2025428 AMAQI
26th Jul 2025419 AMAQI
26th Jul 20253910 AMAQI
26th Jul 20253711 AMAQI
26th Jul 20253512 PMAQI
26th Jul 2025321 PMAQI
26th Jul 2025292 PMAQI
26th Jul 2025323 PMAQI
26th Jul 2025344 PMAQI
26th Jul 2025315 PMAQI
26th Jul 2025316 PMAQI
26th Jul 2025367 PMAQI
26th Jul 2025388 PMAQI
26th Jul 2025309 PMAQI
26th Jul 20253010 PMAQI
26th Jul 20253111 PMAQI
27th Jul 20253312 AMAQI
27th Jul 2025331 AMAQI
27th Jul 2025322 AMAQI
27th Jul 2025323 AMAQI
27th Jul 2025324 AMAQI
26°C16/36°C
27th Jul 2025295 AMAQI
27th Jul 2025266 AMAQI
27th Jul 2025277 AMAQI
27th Jul 2025278 AMAQI
27th Jul 2025269 AMAQI
27th Jul 20252610 AMAQI
27th Jul 20252411 AMAQI
27th Jul 20252212 PMAQI
27th Jul 2025201 PMAQI
27th Jul 2025222 PMAQI
27th Jul 2025223 PMAQI
27th Jul 2025224 PMAQI
27th Jul 2025245 PMAQI
27th Jul 2025226 PMAQI
27th Jul 2025247 PMAQI
27th Jul 2025248 PMAQI
27th Jul 2025209 PMAQI
27th Jul 20252210 PMAQI
27th Jul 20252211 PMAQI
28th Jul 20252212 AMAQI
28th Jul 2025241 AMAQI
28th Jul 2025222 AMAQI
28th Jul 2025233 AMAQI
28th Jul 2025244 AMAQI
27°C17/37°C
28th Jul 2025225 AMAQI
28th Jul 2025236 AMAQI
28th Jul 2025227 AMAQI
28th Jul 2025248 AMAQI
28th Jul 2025269 AMAQI
28th Jul 20252810 AMAQI
28th Jul 20253011 AMAQI
28th Jul 20252812 PMAQI
28th Jul 2025261 PMAQI
28th Jul 2025252 PMAQI
28th Jul 2025253 PMAQI
28th Jul 2025264 PMAQI
28th Jul 2025245 PMAQI
28th Jul 2025246 PMAQI
28th Jul 2025237 PMAQI
28th Jul 2025238 PMAQI
28th Jul 2025229 PMAQI
28th Jul 20252310 PMAQI
28th Jul 20252311 PMAQI
29th Jul 20253712 AMAQI
29th Jul 2025341 AMAQI
29th Jul 2025432 AMAQI
29th Jul 2025463 AMAQI
29th Jul 2025474 AMAQI
27°C19/36°C
29th Jul 2025505 AMAQI
29th Jul 2025486 AMAQI
29th Jul 2025497 AMAQI
29th Jul 2025508 AMAQI
29th Jul 2025499 AMAQI
29th Jul 20255010 AMAQI
29th Jul 20255011 AMAQI
29th Jul 20255012 PMAQI
29th Jul 2025501 PMAQI
29th Jul 2025502 PMAQI
29th Jul 2025523 PMAQI
29th Jul 2025504 PMAQI
29th Jul 2025515 PMAQI
29th Jul 2025506 PMAQI
29th Jul 2025487 PMAQI
29th Jul 2025478 PMAQI
29th Jul 2025359 PMAQI
29th Jul 20253310 PMAQI
29th Jul 20253211 PMAQI
30th Jul 20253012 AMAQI
30th Jul 2025321 AMAQI
30th Jul 2025322 AMAQI
30th Jul 2025323 AMAQI
30th Jul 2025344 AMAQI
23°C18/30°C
30th Jul 2025295 AMAQI
30th Jul 2025306 AMAQI
30th Jul 2025317 AMAQI
30th Jul 2025328 AMAQI
30th Jul 2025349 AMAQI
30th Jul 20253410 AMAQI
30th Jul 20253411 AMAQI
30th Jul 20253412 PMAQI
30th Jul 2025331 PMAQI
30th Jul 2025342 PMAQI
30th Jul 2025333 PMAQI
30th Jul 2025334 PMAQI
30th Jul 2025335 PMAQI
30th Jul 2025336 PMAQI
30th Jul 2025337 PMAQI
30th Jul 2025338 PMAQI
30th Jul 2025439 PMAQI
30th Jul 20254710 PMAQI
30th Jul 20255011 PMAQI
31st Jul 20255112 AMAQI
31st Jul 2025511 AMAQI
31st Jul 2025502 AMAQI
31st Jul 2025513 AMAQI
31st Jul 2025524 AMAQI
20°C16/25°C
31st Jul 2025525 AMAQI
31st Jul 2025546 AMAQI
31st Jul 2025547 AMAQI
31st Jul 2025548 AMAQI
31st Jul 2025559 AMAQI
31st Jul 20255610 AMAQI
31st Jul 20255511 AMAQI
31st Jul 20255412 PMAQI
31st Jul 2025541 PMAQI
31st Jul 2025522 PMAQI
31st Jul 2025503 PMAQI
31st Jul 2025504 PMAQI
31st Jul 2025545 PMAQI
31st Jul 2025556 PMAQI
31st Jul 2025547 PMAQI
31st Jul 2025558 PMAQI
31st Jul 2025549 PMAQI
31st Jul 20255410 PMAQI
31st Jul 20255311 PMAQI
1st Aug 20255212 AMAQI
1st Aug 2025501 AMAQI
1st Aug 2025502 AMAQI
1st Aug 2025493 AMAQI
1st Aug 2025484 AMAQI
21°C14/32°C
1st Aug 2025495 AMAQI
1st Aug 2025496 AMAQI
1st Aug 2025507 AMAQI
1st Aug 2025488 AMAQI
1st Aug 2025509 AMAQI
1st Aug 20255410 AMAQI
1st Aug 20255411 AMAQI
1st Aug 20255312 PMAQI
1st Aug 2025541 PMAQI
1st Aug 2025522 PMAQI
1st Aug 2025513 PMAQI
1st Aug 2025524 PMAQI
1st Aug 2025525 PMAQI
1st Aug 2025506 PMAQI
1st Aug 2025507 PMAQI
1st Aug 2025468 PMAQI
1st Aug 2025419 PMAQI
1st Aug 20253610 PMAQI
1st Aug 20253511 PMAQI
2nd Aug 20253512 AMAQI
2nd Aug 2025351 AMAQI
2nd Aug 2025352 AMAQI
2nd Aug 2025343 AMAQI
2nd Aug 2025344 AMAQI
21°C14/32°C
2nd Aug 2025325 AMAQI
2nd Aug 2025326 AMAQI
2nd Aug 2025327 AMAQI
2nd Aug 2025338 AMAQI
2nd Aug 2025339 AMAQI
2nd Aug 20253210 AMAQI
2nd Aug 20253311 AMAQI
2nd Aug 20252912 PMAQI
2nd Aug 2025281 PMAQI
2nd Aug 2025272 PMAQI
2nd Aug 2025253 PMAQI
2nd Aug 2025254 PMAQI
2nd Aug 2025265 PMAQI
2nd Aug 2025256 PMAQI
2nd Aug 2025317 PMAQI
2nd Aug 2025288 PMAQI
2nd Aug 2025229 PMAQI
2nd Aug 20252210 PMAQI
2nd Aug 20252411 PMAQI
3rd Aug 20252412 AMAQI
3rd Aug 2025241 AMAQI
3rd Aug 2025242 AMAQI
3rd Aug 2025243 AMAQI
3rd Aug 2025234 AMAQI
23°C14/34°C
3rd Aug 2025235 AMAQI
3rd Aug 2025226 AMAQI
3rd Aug 2025217 AMAQI
3rd Aug 2025218 AMAQI
3rd Aug 2025229 AMAQI
3rd Aug 20252210 AMAQI
3rd Aug 20252311 AMAQI
3rd Aug 20252012 PMAQI
3rd Aug 2025201 PMAQI
3rd Aug 2025202 PMAQI
3rd Aug 2025193 PMAQI
3rd Aug 2025204 PMAQI
3rd Aug 2025205 PMAQI
3rd Aug 2025206 PMAQI
3rd Aug 2025227 PMAQI
3rd Aug 2025228 PMAQI
3rd Aug 2025209 PMAQI
3rd Aug 20252210 PMAQI
3rd Aug 20252211 PMAQI
4th Aug 20252412 AMAQI
4th Aug 2025241 AMAQI
4th Aug 2025242 AMAQI
4th Aug 2025233 AMAQI
4th Aug 2025244 AMAQI
24°C15/32°C
4th Aug 2025225 AMAQI
4th Aug 2025236 AMAQI
4th Aug 2025237 AMAQI
4th Aug 2025248 AMAQI
4th Aug 2025289 AMAQI
4th Aug 20252710 AMAQI
4th Aug 20252611 AMAQI
4th Aug 20252812 PMAQI
4th Aug 2025311 PMAQI
4th Aug 2025342 PMAQI
4th Aug 2025353 PMAQI
4th Aug 2025364 PMAQI
4th Aug 2025395 PMAQI
4th Aug 2025396 PMAQI
4th Aug 2025267 PMAQI
4th Aug 2025358 PMAQI
4th Aug 2025459 PMAQI
4th Aug 20254710 PMAQI
4th Aug 20254811 PMAQI
5th Aug 20254712 AMAQI
5th Aug 2025431 AMAQI
5th Aug 2025392 AMAQI
5th Aug 2025373 AMAQI
5th Aug 2025364 AMAQI
26°C15/35°C
5th Aug 2025405 AMAQI
5th Aug 2025406 AMAQI
5th Aug 2025427 AMAQI
5th Aug 2025438 AMAQI
5th Aug 2025469 AMAQI
5th Aug 20254910 AMAQI
5th Aug 20255011 AMAQI
5th Aug 20255012 PMAQI
5th Aug 2025491 PMAQI
5th Aug 2025482 PMAQI
5th Aug 2025473 PMAQI
5th Aug 2025464 PMAQI
5th Aug 2025445 PMAQI
5th Aug 2025436 PMAQI
5th Aug 2025477 PMAQI
5th Aug 2025438 PMAQI
5th Aug 2025429 PMAQI
5th Aug 20254510 PMAQI
5th Aug 20254711 PMAQI
6th Aug 20255112 AMAQI
6th Aug 2025571 AMAQI
6th Aug 2025642 AMAQI
6th Aug 2025663 AMAQI
6th Aug 2025644 AMAQI
28°C17/37°C
6th Aug 2025635 AMAQI
6th Aug 2025626 AMAQI
6th Aug 2025607 AMAQI
6th Aug 2025568 AMAQI
6th Aug 2025569 AMAQI
6th Aug 20255610 AMAQI
6th Aug 20255611 AMAQI
6th Aug 20255512 PMAQI
6th Aug 2025531 PMAQI
6th Aug 2025512 PMAQI
6th Aug 2025473 PMAQI
6th Aug 2025464 PMAQI
6th Aug 2025445 PMAQI
6th Aug 2025466 PMAQI
6th Aug 2025547 PMAQI
6th Aug 2025488 PMAQI
6th Aug 2025409 PMAQI
6th Aug 20253810 PMAQI
6th Aug 20253611 PMAQI
7th Aug 20254512 AMAQI
7th Aug 2025491 AMAQI
7th Aug 2025452 AMAQI
7th Aug 2025463 AMAQI
7th Aug 2025454 AMAQI
27°C18/37°C
7th Aug 2025335 AMAQI
7th Aug 2025306 AMAQI
7th Aug 2025357 AMAQI
7th Aug 2025348 AMAQI
7th Aug 2025349 AMAQI
7th Aug 20253410 AMAQI
7th Aug 20253611 AMAQI
7th Aug 20253712 PMAQI
7th Aug 2025371 PMAQI
7th Aug 2025392 PMAQI
7th Aug 2025393 PMAQI
7th Aug 2025394 PMAQI
7th Aug 2025385 PMAQI
7th Aug 2025366 PMAQI
7th Aug 2025367 PMAQI
7th Aug 2025378 PMAQI
7th Aug 2025359 PMAQI
7th Aug 20253710 PMAQI
7th Aug 20253911 PMAQI
8th Aug 20254012 AMAQI
8th Aug 2025371 AMAQI
8th Aug 2025362 AMAQI
8th Aug 2025343 AMAQI
8th Aug 2025354 AMAQI
28°C19/36°C
8th Aug 2025295 AMAQI
8th Aug 2025266 AMAQI
8th Aug 2025287 AMAQI
8th Aug 2025288 AMAQI
8th Aug 2025309 AMAQI
8th Aug 20253510 AMAQI
8th Aug 20253811 AMAQI
8th Aug 20254012 PMAQI
8th Aug 2025401 PMAQI
8th Aug 2025382 PMAQI
8th Aug 2025363 PMAQI
8th Aug 2025364 PMAQI
8th Aug 2025345 PMAQI
8th Aug 2025336 PMAQI
8th Aug 2025337 PMAQI
8th Aug 2025348 PMAQI
8th Aug 2025359 PMAQI
8th Aug 20253410 PMAQI
8th Aug 20253211 PMAQI
9th Aug 20253312 AMAQI
9th Aug 2025341 AMAQI
9th Aug 2025342 AMAQI
9th Aug 2025353 AMAQI
9th Aug 2025334 AMAQI
27°C18/36°C
9th Aug 2025295 AMAQI
9th Aug 2025306 AMAQI
9th Aug 2025307 AMAQI
9th Aug 2025318 AMAQI
9th Aug 2025339 AMAQI
9th Aug 20253410 AMAQI
9th Aug 20253311 AMAQI
9th Aug 20253112 PMAQI
9th Aug 2025351 PMAQI
9th Aug 2025382 PMAQI
9th Aug 2025373 PMAQI
9th Aug 2025424 PMAQI
9th Aug 2025445 PMAQI
9th Aug 2025476 PMAQI
9th Aug 2025417 PMAQI
9th Aug 2025388 PMAQI
9th Aug 2025469 PMAQI
9th Aug 20254610 PMAQI
9th Aug 20254411 PMAQI
10th Aug 20254012 AMAQI
10th Aug 2025381 AMAQI
10th Aug 2025382 AMAQI
10th Aug 2025363 AMAQI
10th Aug 2025374 AMAQI
25°C18/33°C
10th Aug 2025365 AMAQI
10th Aug 2025406 AMAQI
10th Aug 2025427 AMAQI
10th Aug 2025408 AMAQI
10th Aug 2025369 AMAQI
10th Aug 20253210 AMAQI
10th Aug 20253011 AMAQI
10th Aug 20253012 PMAQI
10th Aug 2025301 PMAQI
10th Aug 2025322 PMAQI
10th Aug 2025343 PMAQI
10th Aug 2025344 PMAQI
10th Aug 2025355 PMAQI
10th Aug 2025366 PMAQI
10th Aug 2025367 PMAQI
10th Aug 2025368 PMAQI
10th Aug 2025389 PMAQI
10th Aug 20253810 PMAQI
10th Aug 20253511 PMAQI
11th Aug 20253512 AMAQI
11th Aug 2025331 AMAQI
11th Aug 2025282 AMAQI
11th Aug 2025273 AMAQI
11th Aug 2025254 AMAQI
20°C18/25°C
11th Aug 2025255 AMAQI
5 AM11th Aug 2025256 AMAQI
11th Aug 2025267 AMAQI
11th Aug 2025288 AMAQI
11th Aug 2025309 AMAQI
11th Aug 20253210 AMAQI
11th Aug 20253411 AMAQI
11th Aug 20253612 PMAQI
12 PM11th Aug 2025391 PMAQI
11th Aug 2025392 PMAQI
11th Aug 2025353 PMAQI
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 PM
35AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM
35AQI
16 hours / Day
480 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 PM (Avg. 35), while the lowest AQI was between 5 AM to 8 PM (Avg. 35).
Night time
Avg. Highest Time
12 AM - 11 PM
35AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
35AQI
8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 35), while the lowest AQI was between 12 AM to 11 PM (Avg. 35).
2025 Days Vs Air Quality
Littleton, Colorado, United States
2025
97%
134
3%
4
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Good
134 DaysModerate
4 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 97%
Health Risk Level:
Very Low
In 2025, 97% of 223 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
Littleton, Colorado, United States
AQI levels in 2025
AQI
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.
1st March 2025
20AQI
20AQI
2nd March 2025
18AQI
18AQI
3rd March 2025
21AQI
21AQI
4th March 2025
18AQI
18AQI
5th March 2025
23AQI
23AQI
6th March 2025
32AQI
32AQI
1st April 2025
24AQI
24AQI
2nd April 2025
18AQI
18AQI
3rd April 2025
18AQI
18AQI
4th April 2025
25AQI
25AQI
5th April 2025
25AQI
25AQI
6th April 2025
21AQI
21AQI
7th April 2025
24AQI
24AQI
8th April 2025
21AQI
21AQI
9th April 2025
34AQI
34AQI
10th April 2025
42AQI
42AQI
11th April 2025
36AQI
36AQI
12th April 2025
27AQI
27AQI
13th April 2025
24AQI
24AQI
14th April 2025
21AQI
21AQI
15th April 2025
30AQI
30AQI
16th April 2025
24AQI
24AQI
17th April 2025
22AQI
22AQI
18th April 2025
14AQI
14AQI
19th April 2025
19AQI
19AQI
20th April 2025
16AQI
16AQI
21st April 2025
14AQI
14AQI
22nd April 2025
17AQI
17AQI
23rd April 2025
27AQI
27AQI
24th April 2025
53AQI
53AQI
25th April 2025
28AQI
28AQI
26th April 2025
29AQI
29AQI
27th April 2025
26AQI
26AQI
28th April 2025
17AQI
17AQI
29th April 2025
14AQI
14AQI
30th April 2025
14AQI
14AQI
1st May 2025
14AQI
14AQI
2nd May 2025
18AQI
18AQI
3rd May 2025
18AQI
18AQI
4th May 2025
18AQI
18AQI
5th May 2025
15AQI
15AQI
6th May 2025
13AQI
13AQI
7th May 2025
17AQI
17AQI
8th May 2025
24AQI
24AQI
9th May 2025
21AQI
21AQI
10th May 2025
22AQI
22AQI
11th May 2025
18AQI
18AQI
12th May 2025
20AQI
20AQI
13th May 2025
24AQI
24AQI
14th May 2025
29AQI
29AQI
15th May 2025
16AQI
16AQI
16th May 2025
15AQI
15AQI
17th May 2025
17AQI
17AQI
18th May 2025
26AQI
26AQI
19th May 2025
16AQI
16AQI
20th May 2025
16AQI
16AQI
21st May 2025
18AQI
18AQI
22nd May 2025
21AQI
21AQI
23rd May 2025
29AQI
29AQI
24th May 2025
40AQI
40AQI
25th May 2025
26AQI
26AQI
26th May 2025
25AQI
25AQI
27th May 2025
31AQI
31AQI
28th May 2025
22AQI
22AQI
29th May 2025
15AQI
15AQI
30th May 2025
20AQI
20AQI
31st May 2025
24AQI
24AQI
1st June 2025
23AQI
23AQI
2nd June 2025
22AQI
22AQI
3rd June 2025
18AQI
18AQI
4th June 2025
26AQI
26AQI
5th June 2025
30AQI
30AQI
6th June 2025
25AQI
25AQI
7th June 2025
22AQI
22AQI
8th June 2025
31AQI
31AQI
9th June 2025
40AQI
40AQI
10th June 2025
30AQI
30AQI
11th June 2025
23AQI
23AQI
12th June 2025
24AQI
24AQI
13th June 2025
26AQI
26AQI
14th June 2025
29AQI
29AQI
15th June 2025
27AQI
27AQI
16th June 2025
27AQI
27AQI
17th June 2025
27AQI
27AQI
18th June 2025
23AQI
23AQI
19th June 2025
26AQI
26AQI
20th June 2025
29AQI
29AQI
21st June 2025
33AQI
33AQI
22nd June 2025
33AQI
33AQI
23rd June 2025
37AQI
37AQI
24th June 2025
45AQI
45AQI
25th June 2025
34AQI
34AQI
26th June 2025
23AQI
23AQI
27th June 2025
26AQI
26AQI
28th June 2025
27AQI
27AQI
29th June 2025
27AQI
27AQI
30th June 2025
29AQI
29AQI
1st July 2025
25AQI
25AQI
2nd July 2025
23AQI
23AQI
3rd July 2025
24AQI
24AQI
4th July 2025
22AQI
22AQI
5th July 2025
32AQI
32AQI
6th July 2025
24AQI
24AQI
7th July 2025
22AQI
22AQI
8th July 2025
24AQI
24AQI
9th July 2025
24AQI
24AQI
10th July 2025
27AQI
27AQI
11th July 2025
35AQI
35AQI
12th July 2025
52AQI
52AQI
13th July 2025
40AQI
40AQI
14th July 2025
26AQI
26AQI
15th July 2025
26AQI
26AQI
16th July 2025
39AQI
39AQI
17th July 2025
50AQI
50AQI
18th July 2025
47AQI
47AQI
19th July 2025
36AQI
36AQI
20th July 2025
24AQI
24AQI
21st July 2025
22AQI
22AQI
22nd July 2025
20AQI
20AQI
23rd July 2025
20AQI
20AQI
24th July 2025
23AQI
23AQI
25th July 2025
34AQI
34AQI
26th July 2025
37AQI
37AQI
27th July 2025
26AQI
26AQI
28th July 2025
24AQI
24AQI
29th July 2025
45AQI
45AQI
30th July 2025
35AQI
35AQI
31st July 2025
53AQI
53AQI
1st August 2025
49AQI
49AQI
2nd August 2025
30AQI
30AQI
3rd August 2025
22AQI
22AQI
4th August 2025
31AQI
31AQI
5th August 2025
44AQI
44AQI
6th August 2025
53AQI
53AQI
7th August 2025
38AQI
38AQI
8th August 2025
34AQI
34AQI
9th August 2025
37AQI
37AQI
10th August 2025
36AQI
36AQI
22AQI
24AQI
21AQI
28AQI
31AQI
37AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202527AQI
6
29
1
31
30
29
2
9
1
134
4
Highest AQI recorded in
August37AQI
Lowest AQI recorded in
May21AQI
Most & Least Polluted Years Over the Last 1 Years
Most Polluted Year Recorded
2025(Avg.)
27AQILeast Polluted Year Recorded
2025(Avg.)
27AQILittleton's annual 2025 AQI (27) shows an average percentage change of NaN% (improved AQI) compared to previous years: .
