Golden, 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
Golden, Colorado, United States
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
14th Aug 2025
52AQILowest AQI recorded on
3rd Aug 2025
24AQISame Day Analysis (14th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 52 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 14th Aug - 15th Aug 2025
Golden, Colorado, United States
AQI
Day
Night
.
5 AM14th Aug 2025
8 PM
4 AM15th Aug 2025
Day time
Avg. Highest Time
1PM14th Aug
42AQI
Avg. Lowest Time
9AM14th Aug
34AQI
Night time
Avg. Highest Time
5AM14th Aug
38AQI
Avg. Lowest Time
1AM15th Aug
33AQI
In the last 24 hours,
Golden's AQI reached its highest point of 42 at 1 PM during the Day, while the lowest point, 33, was recorded at 1 AM during the Night between 14th Aug and 15th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Golden, Colorado, United States
JulAug
16th - 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 - 12th12th - 13th13th - 14th14th - 15th15th
Day
Night
16th Jul 2025345 AMAQI
16th Jul 2025336 AMAQI
16th Jul 2025357 AMAQI
16th Jul 2025358 AMAQI
16th Jul 2025349 AMAQI
16th Jul 20253810 AMAQI
16th Jul 20253911 AMAQI
16th Jul 20253912 PMAQI
16th Jul 2025391 PMAQI
16th Jul 2025422 PMAQI
16th Jul 2025443 PMAQI
16th Jul 2025444 PMAQI
16th Jul 2025425 PMAQI
16th Jul 2025416 PMAQI
16th Jul 2025377 PMAQI
16th Jul 2025368 PMAQI
16th Jul 2025369 PMAQI
16th Jul 20253610 PMAQI
16th Jul 20253411 PMAQI
17th Jul 20253512 AMAQI
17th Jul 2025361 AMAQI
17th Jul 2025362 AMAQI
17th Jul 2025363 AMAQI
17th Jul 2025344 AMAQI
18°C14/24°C
17th Jul 2025355 AMAQI
17th Jul 2025366 AMAQI
17th Jul 2025387 AMAQI
17th Jul 2025388 AMAQI
17th Jul 2025399 AMAQI
17th Jul 20254010 AMAQI
17th Jul 20254011 AMAQI
17th Jul 20254312 PMAQI
17th Jul 2025461 PMAQI
17th Jul 2025462 PMAQI
17th Jul 2025403 PMAQI
17th Jul 2025394 PMAQI
17th Jul 2025385 PMAQI
17th Jul 2025386 PMAQI
17th Jul 2025367 PMAQI
17th Jul 2025368 PMAQI
17th Jul 2025379 PMAQI
17th Jul 20253510 PMAQI
17th Jul 20253511 PMAQI
18th Jul 20253412 AMAQI
18th Jul 2025341 AMAQI
18th Jul 2025342 AMAQI
18th Jul 2025323 AMAQI
18th Jul 2025334 AMAQI
19°C13/30°C
18th Jul 2025335 AMAQI
18th Jul 2025356 AMAQI
18th Jul 2025377 AMAQI
18th Jul 2025388 AMAQI
18th Jul 2025389 AMAQI
18th Jul 20253710 AMAQI
18th Jul 20253911 AMAQI
18th Jul 20253912 PMAQI
18th Jul 2025391 PMAQI
18th Jul 2025372 PMAQI
18th Jul 2025363 PMAQI
18th Jul 2025364 PMAQI
18th Jul 2025375 PMAQI
18th Jul 2025366 PMAQI
18th Jul 2025357 PMAQI
18th Jul 2025348 PMAQI
18th Jul 2025349 PMAQI
18th Jul 20253410 PMAQI
18th Jul 20253211 PMAQI
19th Jul 20253212 AMAQI
19th Jul 2025321 AMAQI
19th Jul 2025312 AMAQI
19th Jul 2025283 AMAQI
19th Jul 2025294 AMAQI
22°C15/33°C
19th Jul 2025275 AMAQI
19th Jul 2025266 AMAQI
19th Jul 2025307 AMAQI
19th Jul 2025278 AMAQI
19th Jul 2025279 AMAQI
19th Jul 20252710 AMAQI
19th Jul 20252611 AMAQI
19th Jul 20252912 PMAQI
19th Jul 2025281 PMAQI
19th Jul 2025292 PMAQI
19th Jul 2025293 PMAQI
19th Jul 2025294 PMAQI
19th Jul 2025295 PMAQI
19th Jul 2025286 PMAQI
19th Jul 2025287 PMAQI
19th Jul 2025288 PMAQI
19th Jul 2025289 PMAQI
19th Jul 20252710 PMAQI
19th Jul 20252511 PMAQI
20th Jul 20252512 AMAQI
20th Jul 2025251 AMAQI
20th Jul 2025252 AMAQI
20th Jul 2025243 AMAQI
20th Jul 2025244 AMAQI
22°C14/33°C
20th Jul 2025215 AMAQI
20th Jul 2025226 AMAQI
20th Jul 2025257 AMAQI
20th Jul 2025258 AMAQI
20th Jul 2025259 AMAQI
20th Jul 20252510 AMAQI
20th Jul 20252411 AMAQI
20th Jul 20252612 PMAQI
20th Jul 2025271 PMAQI
20th Jul 2025292 PMAQI
20th Jul 2025283 PMAQI
20th Jul 2025274 PMAQI
20th Jul 2025265 PMAQI
20th Jul 2025256 PMAQI
20th Jul 2025267 PMAQI
20th Jul 2025268 PMAQI
20th Jul 2025229 PMAQI
20th Jul 20252310 PMAQI
20th Jul 20252311 PMAQI
21st Jul 20252412 AMAQI
21st Jul 2025241 AMAQI
21st Jul 2025242 AMAQI
21st Jul 2025253 AMAQI
21st Jul 2025234 AMAQI
22°C16/31°C
21st Jul 2025205 AMAQI
21st Jul 2025236 AMAQI
21st Jul 2025247 AMAQI
21st Jul 2025258 AMAQI
21st Jul 2025249 AMAQI
21st Jul 20252510 AMAQI
21st Jul 20252611 AMAQI
21st Jul 20253012 PMAQI
21st Jul 2025281 PMAQI
21st Jul 2025302 PMAQI
21st Jul 2025293 PMAQI
21st Jul 2025324 PMAQI
21st Jul 2025315 PMAQI
21st Jul 2025326 PMAQI
21st Jul 2025317 PMAQI
21st Jul 2025308 PMAQI
21st Jul 2025249 PMAQI
21st Jul 20252610 PMAQI
21st Jul 20253311 PMAQI
22nd Jul 20253412 AMAQI
22nd Jul 2025331 AMAQI
22nd Jul 2025312 AMAQI
22nd Jul 2025323 AMAQI
22nd Jul 2025324 AMAQI
22°C16/34°C
22nd Jul 2025345 AMAQI
22nd Jul 2025286 AMAQI
22nd Jul 2025377 AMAQI
22nd Jul 2025338 AMAQI
22nd Jul 2025309 AMAQI
22nd Jul 20252810 AMAQI
22nd Jul 20252511 AMAQI
22nd Jul 20252412 PMAQI
22nd Jul 2025241 PMAQI
22nd Jul 2025242 PMAQI
22nd Jul 2025293 PMAQI
22nd Jul 2025294 PMAQI
22nd Jul 2025285 PMAQI
22nd Jul 2025296 PMAQI
22nd Jul 2025267 PMAQI
22nd Jul 2025258 PMAQI
22nd Jul 2025279 PMAQI
22nd Jul 20252510 PMAQI
22nd Jul 20252211 PMAQI
23rd Jul 20252312 AMAQI
23rd Jul 2025231 AMAQI
23rd Jul 2025232 AMAQI
23rd Jul 2025223 AMAQI
23rd Jul 2025234 AMAQI
22°C15/33°C
23rd Jul 2025215 AMAQI
23rd Jul 2025206 AMAQI
23rd Jul 2025207 AMAQI
23rd Jul 2025228 AMAQI
23rd Jul 2025229 AMAQI
23rd Jul 20252210 AMAQI
23rd Jul 20252511 AMAQI
23rd Jul 20252712 PMAQI
23rd Jul 2025301 PMAQI
23rd Jul 2025302 PMAQI
23rd Jul 2025293 PMAQI
23rd Jul 2025294 PMAQI
23rd Jul 2025285 PMAQI
23rd Jul 2025266 PMAQI
23rd Jul 2025257 PMAQI
23rd Jul 2025268 PMAQI
23rd Jul 2025289 PMAQI
23rd Jul 20252610 PMAQI
23rd Jul 20252811 PMAQI
24th Jul 20252612 AMAQI
24th Jul 2025261 AMAQI
24th Jul 2025302 AMAQI
24th Jul 2025303 AMAQI
24th Jul 2025324 AMAQI
21°C15/31°C
24th Jul 2025365 AMAQI
24th Jul 2025366 AMAQI
24th Jul 2025317 AMAQI
24th Jul 2025308 AMAQI
24th Jul 2025309 AMAQI
24th Jul 20252910 AMAQI
24th Jul 20253211 AMAQI
24th Jul 20253012 PMAQI
24th Jul 2025321 PMAQI
24th Jul 2025342 PMAQI
24th Jul 2025353 PMAQI
24th Jul 2025344 PMAQI
24th Jul 2025335 PMAQI
24th Jul 2025336 PMAQI
24th Jul 2025327 PMAQI
24th Jul 2025338 PMAQI
24th Jul 2025349 PMAQI
24th Jul 20253410 PMAQI
24th Jul 20253311 PMAQI
25th Jul 20253212 AMAQI
25th Jul 2025321 AMAQI
25th Jul 2025312 AMAQI
25th Jul 2025293 AMAQI
25th Jul 2025264 AMAQI
18°C13/28°C
25th Jul 2025235 AMAQI
25th Jul 2025216 AMAQI
25th Jul 2025257 AMAQI
25th Jul 2025248 AMAQI
25th Jul 2025249 AMAQI
25th Jul 20252310 AMAQI
25th Jul 20252211 AMAQI
25th Jul 20252212 PMAQI
25th Jul 2025241 PMAQI
25th Jul 2025242 PMAQI
25th Jul 2025243 PMAQI
25th Jul 2025254 PMAQI
25th Jul 2025265 PMAQI
25th Jul 2025276 PMAQI
25th Jul 2025267 PMAQI
25th Jul 2025278 PMAQI
25th Jul 2025279 PMAQI
25th Jul 20252510 PMAQI
25th Jul 20252411 PMAQI
26th Jul 20252412 AMAQI
26th Jul 2025261 AMAQI
26th Jul 2025252 AMAQI
26th Jul 2025243 AMAQI
26th Jul 2025264 AMAQI
20°C12/32°C
26th Jul 2025255 AMAQI
26th Jul 2025246 AMAQI
26th Jul 2025247 AMAQI
26th Jul 2025238 AMAQI
26th Jul 2025239 AMAQI
26th Jul 20252210 AMAQI
26th Jul 20252511 AMAQI
26th Jul 20252812 PMAQI
26th Jul 2025281 PMAQI
26th Jul 2025282 PMAQI
26th Jul 2025273 PMAQI
26th Jul 2025274 PMAQI
26th Jul 2025275 PMAQI
26th Jul 2025276 PMAQI
26th Jul 2025297 PMAQI
26th Jul 2025298 PMAQI
26th Jul 2025269 PMAQI
26th Jul 20252710 PMAQI
26th Jul 20252811 PMAQI
27th Jul 20252812 AMAQI
27th Jul 2025301 AMAQI
27th Jul 2025302 AMAQI
27th Jul 2025313 AMAQI
27th Jul 2025294 AMAQI
22°C14/32°C
27th Jul 2025295 AMAQI
27th Jul 2025296 AMAQI
27th Jul 2025297 AMAQI
27th Jul 2025288 AMAQI
27th Jul 2025259 AMAQI
27th Jul 20252510 AMAQI
27th Jul 20252511 AMAQI
27th Jul 20252712 PMAQI
27th Jul 2025281 PMAQI
27th Jul 2025292 PMAQI
27th Jul 2025283 PMAQI
27th Jul 2025274 PMAQI
27th Jul 2025285 PMAQI
27th Jul 2025266 PMAQI
27th Jul 2025277 PMAQI
27th Jul 2025278 PMAQI
27th Jul 2025249 PMAQI
27th Jul 20252510 PMAQI
27th Jul 20252611 PMAQI
28th Jul 20252712 AMAQI
28th Jul 2025261 AMAQI
28th Jul 2025262 AMAQI
28th Jul 2025283 AMAQI
28th Jul 2025284 AMAQI
23°C15/34°C
28th Jul 2025275 AMAQI
28th Jul 2025296 AMAQI
28th Jul 2025287 AMAQI
28th Jul 2025288 AMAQI
28th Jul 2025309 AMAQI
28th Jul 20253110 AMAQI
28th Jul 20253211 AMAQI
28th Jul 20253212 PMAQI
28th Jul 2025341 PMAQI
28th Jul 2025352 PMAQI
28th Jul 2025323 PMAQI
28th Jul 2025324 PMAQI
28th Jul 2025335 PMAQI
28th Jul 2025346 PMAQI
28th Jul 2025327 PMAQI
28th Jul 2025338 PMAQI
28th Jul 2025339 PMAQI
28th Jul 20253310 PMAQI
28th Jul 20253111 PMAQI
29th Jul 20253312 AMAQI
29th Jul 2025351 AMAQI
29th Jul 2025342 AMAQI
29th Jul 2025343 AMAQI
29th Jul 2025364 AMAQI
24°C16/33°C
29th Jul 2025385 AMAQI
29th Jul 2025396 AMAQI
29th Jul 2025377 AMAQI
29th Jul 2025358 AMAQI
29th Jul 2025369 AMAQI
29th Jul 20253810 AMAQI
29th Jul 20253711 AMAQI
29th Jul 20253612 PMAQI
29th Jul 2025381 PMAQI
29th Jul 2025382 PMAQI
29th Jul 2025373 PMAQI
29th Jul 2025364 PMAQI
29th Jul 2025345 PMAQI
29th Jul 2025326 PMAQI
29th Jul 2025347 PMAQI
29th Jul 2025318 PMAQI
29th Jul 2025309 PMAQI
29th Jul 20252910 PMAQI
29th Jul 20252611 PMAQI
30th Jul 20252612 AMAQI
30th Jul 2025281 AMAQI
30th Jul 2025282 AMAQI
30th Jul 2025303 AMAQI
30th Jul 2025314 AMAQI
20°C16/28°C
30th Jul 2025335 AMAQI
30th Jul 2025306 AMAQI
30th Jul 2025297 AMAQI
30th Jul 2025328 AMAQI
30th Jul 2025349 AMAQI
30th Jul 20253610 AMAQI
30th Jul 20253711 AMAQI
30th Jul 20253812 PMAQI
30th Jul 2025391 PMAQI
30th Jul 2025402 PMAQI
30th Jul 2025413 PMAQI
30th Jul 2025414 PMAQI
30th Jul 2025405 PMAQI
30th Jul 2025396 PMAQI
30th Jul 2025407 PMAQI
30th Jul 2025408 PMAQI
30th Jul 2025439 PMAQI
30th Jul 20254510 PMAQI
30th Jul 20254011 PMAQI
31st Jul 20253812 AMAQI
31st Jul 2025381 AMAQI
31st Jul 2025402 AMAQI
31st Jul 2025413 AMAQI
31st Jul 2025394 AMAQI
17°C14/22°C
31st Jul 2025435 AMAQI
31st Jul 2025506 AMAQI
31st Jul 2025527 AMAQI
31st Jul 2025498 AMAQI
31st Jul 2025509 AMAQI
31st Jul 20255110 AMAQI
31st Jul 20255211 AMAQI
31st Jul 20255312 PMAQI
31st Jul 2025531 PMAQI
31st Jul 2025522 PMAQI
31st Jul 2025533 PMAQI
31st Jul 2025514 PMAQI
31st Jul 2025525 PMAQI
31st Jul 2025496 PMAQI
31st Jul 2025487 PMAQI
31st Jul 2025478 PMAQI
31st Jul 2025509 PMAQI
31st Jul 20255110 PMAQI
31st Jul 20255211 PMAQI
1st Aug 20254812 AMAQI
1st Aug 2025471 AMAQI
1st Aug 2025442 AMAQI
1st Aug 2025433 AMAQI
1st Aug 2025414 AMAQI
18°C12/30°C
1st Aug 2025425 AMAQI
1st Aug 2025416 AMAQI
1st Aug 2025417 AMAQI
1st Aug 2025418 AMAQI
1st Aug 2025419 AMAQI
1st Aug 20254110 AMAQI
1st Aug 20254411 AMAQI
1st Aug 20254812 PMAQI
1st Aug 2025521 PMAQI
1st Aug 2025532 PMAQI
1st Aug 2025503 PMAQI
1st Aug 2025484 PMAQI
1st Aug 2025485 PMAQI
1st Aug 2025466 PMAQI
1st Aug 2025487 PMAQI
1st Aug 2025478 PMAQI
1st Aug 2025469 PMAQI
1st Aug 20254310 PMAQI
1st Aug 20254311 PMAQI
2nd Aug 20254412 AMAQI
2nd Aug 2025461 AMAQI
2nd Aug 2025402 AMAQI
2nd Aug 2025383 AMAQI
2nd Aug 2025384 AMAQI
19°C11/32°C
2nd Aug 2025345 AMAQI
2nd Aug 2025356 AMAQI
2nd Aug 2025337 AMAQI
2nd Aug 2025338 AMAQI
2nd Aug 2025329 AMAQI
2nd Aug 20253410 AMAQI
2nd Aug 20253611 AMAQI
2nd Aug 20253712 PMAQI
2nd Aug 2025361 PMAQI
2nd Aug 2025392 PMAQI
2nd Aug 2025433 PMAQI
2nd Aug 2025394 PMAQI
2nd Aug 2025375 PMAQI
2nd Aug 2025356 PMAQI
2nd Aug 2025367 PMAQI
2nd Aug 2025358 PMAQI
2nd Aug 2025349 PMAQI
2nd Aug 20253210 PMAQI
2nd Aug 20253211 PMAQI
3rd Aug 20253012 AMAQI
3rd Aug 2025311 AMAQI
3rd Aug 2025302 AMAQI
3rd Aug 2025283 AMAQI
3rd Aug 2025314 AMAQI
21°C13/31°C
3rd Aug 2025315 AMAQI
3rd Aug 2025306 AMAQI
3rd Aug 2025287 AMAQI
3rd Aug 2025268 AMAQI
3rd Aug 2025279 AMAQI
3rd Aug 20252510 AMAQI
3rd Aug 20252511 AMAQI
3rd Aug 20252612 PMAQI
3rd Aug 2025281 PMAQI
3rd Aug 2025262 PMAQI
3rd Aug 2025303 PMAQI
3rd Aug 2025284 PMAQI
3rd Aug 2025285 PMAQI
3rd Aug 2025286 PMAQI
3rd Aug 2025297 PMAQI
3rd Aug 2025278 PMAQI
3rd Aug 2025289 PMAQI
3rd Aug 20252810 PMAQI
3rd Aug 20252711 PMAQI
4th Aug 20252912 AMAQI
4th Aug 2025321 AMAQI
4th Aug 2025322 AMAQI
4th Aug 2025293 AMAQI
4th Aug 2025294 AMAQI
21°C12/31°C
4th Aug 2025275 AMAQI
4th Aug 2025306 AMAQI
4th Aug 2025317 AMAQI
4th Aug 2025308 AMAQI
4th Aug 2025319 AMAQI
4th Aug 20253110 AMAQI
4th Aug 20253511 AMAQI
4th Aug 20254012 PMAQI
4th Aug 2025411 PMAQI
4th Aug 2025372 PMAQI
4th Aug 2025363 PMAQI
4th Aug 2025414 PMAQI
4th Aug 2025425 PMAQI
4th Aug 2025396 PMAQI
4th Aug 2025337 PMAQI
4th Aug 2025398 PMAQI
4th Aug 2025409 PMAQI
4th Aug 20253810 PMAQI
4th Aug 20253511 PMAQI
5th Aug 20253612 AMAQI
5th Aug 2025341 AMAQI
5th Aug 2025312 AMAQI
5th Aug 2025323 AMAQI
5th Aug 2025304 AMAQI
23°C12/33°C
5th Aug 2025315 AMAQI
5th Aug 2025336 AMAQI
5th Aug 2025327 AMAQI
5th Aug 2025388 AMAQI
5th Aug 2025389 AMAQI
5th Aug 20253810 AMAQI
5th Aug 20253911 AMAQI
5th Aug 20254112 PMAQI
5th Aug 2025421 PMAQI
5th Aug 2025432 PMAQI
5th Aug 2025443 PMAQI
5th Aug 2025424 PMAQI
5th Aug 2025435 PMAQI
5th Aug 2025416 PMAQI
5th Aug 2025417 PMAQI
5th Aug 2025408 PMAQI
5th Aug 2025369 PMAQI
5th Aug 20253410 PMAQI
5th Aug 20253511 PMAQI
6th Aug 20253212 AMAQI
6th Aug 2025351 AMAQI
6th Aug 2025362 AMAQI
6th Aug 2025383 AMAQI
6th Aug 2025364 AMAQI
25°C15/36°C
6th Aug 2025425 AMAQI
6th Aug 2025426 AMAQI
6th Aug 2025407 AMAQI
6th Aug 2025388 AMAQI
6th Aug 2025389 AMAQI
6th Aug 20253610 AMAQI
6th Aug 20253711 AMAQI
6th Aug 20253712 PMAQI
6th Aug 2025401 PMAQI
6th Aug 2025402 PMAQI
6th Aug 2025403 PMAQI
6th Aug 2025394 PMAQI
6th Aug 2025365 PMAQI
6th Aug 2025346 PMAQI
6th Aug 2025377 PMAQI
6th Aug 2025328 PMAQI
6th Aug 2025299 PMAQI
6th Aug 20253010 PMAQI
6th Aug 20253111 PMAQI
7th Aug 20253512 AMAQI
7th Aug 2025391 AMAQI
7th Aug 2025382 AMAQI
7th Aug 2025403 AMAQI
7th Aug 2025384 AMAQI
24°C16/33°C
7th Aug 2025395 AMAQI
7th Aug 2025396 AMAQI
7th Aug 2025367 AMAQI
7th Aug 2025358 AMAQI
7th Aug 2025369 AMAQI
7th Aug 20253710 AMAQI
7th Aug 20253711 AMAQI
7th Aug 20253512 PMAQI
7th Aug 2025351 PMAQI
7th Aug 2025342 PMAQI
7th Aug 2025323 PMAQI
7th Aug 2025314 PMAQI
7th Aug 2025315 PMAQI
7th Aug 2025296 PMAQI
7th Aug 2025307 PMAQI
7th Aug 2025308 PMAQI
7th Aug 2025329 PMAQI
7th Aug 20253310 PMAQI
7th Aug 20253211 PMAQI
8th Aug 20253412 AMAQI
8th Aug 2025341 AMAQI
8th Aug 2025342 AMAQI
8th Aug 2025363 AMAQI
8th Aug 2025334 AMAQI
26°C17/38°C
8th Aug 2025285 AMAQI
8th Aug 2025256 AMAQI
8th Aug 2025237 AMAQI
8th Aug 2025248 AMAQI
8th Aug 2025259 AMAQI
8th Aug 20252710 AMAQI
8th Aug 20252911 AMAQI
8th Aug 20253112 PMAQI
8th Aug 2025321 PMAQI
8th Aug 2025292 PMAQI
8th Aug 2025303 PMAQI
8th Aug 2025284 PMAQI
8th Aug 2025265 PMAQI
8th Aug 2025266 PMAQI
8th Aug 2025277 PMAQI
8th Aug 2025278 PMAQI
8th Aug 2025279 PMAQI
8th Aug 20252510 PMAQI
8th Aug 20252511 PMAQI
9th Aug 20252512 AMAQI
9th Aug 2025271 AMAQI
9th Aug 2025282 AMAQI
9th Aug 2025273 AMAQI
9th Aug 2025244 AMAQI
25°C16/36°C
9th Aug 2025245 AMAQI
9th Aug 2025246 AMAQI
9th Aug 2025257 AMAQI
9th Aug 2025268 AMAQI
9th Aug 2025279 AMAQI
9th Aug 20252710 AMAQI
9th Aug 20252711 AMAQI
9th Aug 20252712 PMAQI
9th Aug 2025281 PMAQI
9th Aug 2025292 PMAQI
9th Aug 2025323 PMAQI
9th Aug 2025304 PMAQI
9th Aug 2025285 PMAQI
9th Aug 2025286 PMAQI
9th Aug 2025287 PMAQI
9th Aug 2025298 PMAQI
9th Aug 2025309 PMAQI
9th Aug 20253110 PMAQI
9th Aug 20253111 PMAQI
10th Aug 20253112 AMAQI
10th Aug 2025331 AMAQI
10th Aug 2025332 AMAQI
10th Aug 2025313 AMAQI
10th Aug 2025324 AMAQI
22°C14/30°C
10th Aug 2025365 AMAQI
10th Aug 2025386 AMAQI
10th Aug 2025407 AMAQI
10th Aug 2025408 AMAQI
10th Aug 2025409 AMAQI
10th Aug 20254010 AMAQI
10th Aug 20254011 AMAQI
10th Aug 20254212 PMAQI
10th Aug 2025431 PMAQI
10th Aug 2025432 PMAQI
10th Aug 2025433 PMAQI
10th Aug 2025424 PMAQI
10th Aug 2025405 PMAQI
10th Aug 2025396 PMAQI
10th Aug 2025367 PMAQI
10th Aug 2025348 PMAQI
10th Aug 2025379 PMAQI
10th Aug 20253410 PMAQI
10th Aug 20252811 PMAQI
11th Aug 20252812 AMAQI
11th Aug 2025291 AMAQI
11th Aug 2025292 AMAQI
11th Aug 2025253 AMAQI
11th Aug 2025194 AMAQI
18°C14/23°C
11th Aug 2025215 AMAQI
11th Aug 2025256 AMAQI
11th Aug 2025277 AMAQI
11th Aug 2025248 AMAQI
11th Aug 2025259 AMAQI
11th Aug 20252510 AMAQI
11th Aug 20252511 AMAQI
11th Aug 20253012 PMAQI
11th Aug 2025311 PMAQI
11th Aug 2025332 PMAQI
11th Aug 2025313 PMAQI
11th Aug 2025294 PMAQI
11th Aug 2025275 PMAQI
11th Aug 2025256 PMAQI
11th Aug 2025237 PMAQI
11th Aug 2025228 PMAQI
11th Aug 2025239 PMAQI
11th Aug 20252210 PMAQI
11th Aug 20252411 PMAQI
12th Aug 20252112 AMAQI
12th Aug 2025211 AMAQI
12th Aug 2025232 AMAQI
12th Aug 2025243 AMAQI
12th Aug 2025244 AMAQI
18°C11/27°C
12th Aug 2025265 AMAQI
12th Aug 2025256 AMAQI
12th Aug 2025277 AMAQI
12th Aug 2025288 AMAQI
12th Aug 2025309 AMAQI
12th Aug 20253110 AMAQI
12th Aug 20253411 AMAQI
12th Aug 20253812 PMAQI
12th Aug 2025361 PMAQI
12th Aug 2025322 PMAQI
12th Aug 2025323 PMAQI
12th Aug 2025324 PMAQI
12th Aug 2025345 PMAQI
12th Aug 2025286 PMAQI
12th Aug 2025257 PMAQI
12th Aug 2025228 PMAQI
12th Aug 2025259 PMAQI
12th Aug 20252410 PMAQI
12th Aug 20252511 PMAQI
13th Aug 20252412 AMAQI
13th Aug 2025261 AMAQI
13th Aug 2025242 AMAQI
13th Aug 2025263 AMAQI
13th Aug 2025264 AMAQI
20°C13/28°C
13th Aug 2025265 AMAQI
13th Aug 2025266 AMAQI
13th Aug 2025277 AMAQI
13th Aug 2025278 AMAQI
13th Aug 2025249 AMAQI
13th Aug 20252610 AMAQI
13th Aug 20252811 AMAQI
13th Aug 20253212 PMAQI
13th Aug 2025351 PMAQI
13th Aug 2025372 PMAQI
13th Aug 2025363 PMAQI
13th Aug 2025384 PMAQI
13th Aug 2025385 PMAQI
13th Aug 2025416 PMAQI
13th Aug 2025287 PMAQI
13th Aug 2025348 PMAQI
13th Aug 2025379 PMAQI
13th Aug 20253510 PMAQI
13th Aug 20253511 PMAQI
14th Aug 20253612 AMAQI
14th Aug 2025361 AMAQI
14th Aug 2025372 AMAQI
14th Aug 2025363 AMAQI
14th Aug 2025364 AMAQI
25°C15/36°C
14th Aug 2025385 AMAQI
14th Aug 2025386 AMAQI
14th Aug 2025367 AMAQI
14th Aug 2025348 AMAQI
14th Aug 2025349 AMAQI
14th Aug 20253510 AMAQI
14th Aug 20253711 AMAQI
14th Aug 20253912 PMAQI
14th Aug 2025421 PMAQI
14th Aug 2025402 PMAQI
14th Aug 2025383 PMAQI
14th Aug 2025364 PMAQI
14th Aug 2025355 PMAQI
14th Aug 2025356 PMAQI
14th Aug 2025367 PMAQI
14th Aug 2025348 PMAQI
14th Aug 2025349 PMAQI
14th Aug 20253410 PMAQI
14th Aug 20253411 PMAQI
15th Aug 20253512 AMAQI
15th Aug 2025331 AMAQI
15th Aug 2025362 AMAQI
15th Aug 2025363 AMAQI
15th Aug 2025374 AMAQI
23°C16/35°C
15th Aug 2025365 AMAQI
5 AM15th Aug 2025366 AMAQI
15th Aug 2025357 AMAQI
15th Aug 2025348 AMAQI
15th Aug 2025249 AMAQI
15th Aug 20252310 AMAQI
12 PM
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
11 AM - 8 PM
34AQI
10 hours / Day
300 hours / Month
Avg. Lowest Time
5 AM - 10 AM
31AQI
6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 8 PM (Avg. 34), while the lowest AQI was between 5 AM to 10 AM (Avg. 31).
Night time
Avg. Highest Time
12 AM - 11 PM
31AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
31AQI
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. 31), while the lowest AQI was between 12 AM to 11 PM (Avg. 31).
2025 Days Vs Air Quality
Golden, Colorado, United States
2025
99%
141
0.7%
1
Total number of days with different AQI categories in last 227 days in 2025 (138 days remaining)
Good
141 DaysModerate
1 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 99%
Health Risk Level:
Very Low
In 2025, 99% of 227 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
Golden, 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
23AQI
23AQI
2nd March 2025
20AQI
20AQI
3rd March 2025
22AQI
22AQI
4th March 2025
25AQI
25AQI
5th March 2025
24AQI
24AQI
6th March 2025
25AQI
25AQI
1st April 2025
21AQI
21AQI
2nd April 2025
17AQI
17AQI
3rd April 2025
16AQI
16AQI
4th April 2025
18AQI
18AQI
5th April 2025
19AQI
19AQI
6th April 2025
18AQI
18AQI
7th April 2025
23AQI
23AQI
8th April 2025
20AQI
20AQI
9th April 2025
30AQI
30AQI
10th April 2025
34AQI
34AQI
11th April 2025
34AQI
34AQI
12th April 2025
24AQI
24AQI
13th April 2025
22AQI
22AQI
14th April 2025
19AQI
19AQI
15th April 2025
24AQI
24AQI
16th April 2025
21AQI
21AQI
17th April 2025
21AQI
21AQI
18th April 2025
15AQI
15AQI
19th April 2025
17AQI
17AQI
20th April 2025
18AQI
18AQI
21st April 2025
15AQI
15AQI
22nd April 2025
17AQI
17AQI
23rd April 2025
20AQI
20AQI
24th April 2025
26AQI
26AQI
25th April 2025
19AQI
19AQI
26th April 2025
17AQI
17AQI
27th April 2025
24AQI
24AQI
28th April 2025
15AQI
15AQI
29th April 2025
13AQI
13AQI
30th April 2025
15AQI
15AQI
1st May 2025
15AQI
15AQI
2nd May 2025
17AQI
17AQI
3rd May 2025
17AQI
17AQI
4th May 2025
19AQI
19AQI
5th May 2025
16AQI
16AQI
6th May 2025
15AQI
15AQI
7th May 2025
18AQI
18AQI
8th May 2025
21AQI
21AQI
9th May 2025
21AQI
21AQI
10th May 2025
21AQI
21AQI
11th May 2025
20AQI
20AQI
12th May 2025
21AQI
21AQI
13th May 2025
25AQI
25AQI
14th May 2025
20AQI
20AQI
15th May 2025
14AQI
14AQI
16th May 2025
15AQI
15AQI
17th May 2025
18AQI
18AQI
18th May 2025
21AQI
21AQI
19th May 2025
15AQI
15AQI
20th May 2025
16AQI
16AQI
21st May 2025
18AQI
18AQI
22nd May 2025
22AQI
22AQI
23rd May 2025
25AQI
25AQI
24th May 2025
26AQI
26AQI
25th May 2025
15AQI
15AQI
26th May 2025
15AQI
15AQI
27th May 2025
24AQI
24AQI
28th May 2025
21AQI
21AQI
29th May 2025
18AQI
18AQI
30th May 2025
25AQI
25AQI
31st May 2025
26AQI
26AQI
1st June 2025
25AQI
25AQI
2nd June 2025
21AQI
21AQI
3rd June 2025
19AQI
19AQI
4th June 2025
25AQI
25AQI
5th June 2025
24AQI
24AQI
6th June 2025
21AQI
21AQI
7th June 2025
24AQI
24AQI
8th June 2025
30AQI
30AQI
9th June 2025
35AQI
35AQI
10th June 2025
29AQI
29AQI
11th June 2025
24AQI
24AQI
12th June 2025
25AQI
25AQI
13th June 2025
26AQI
26AQI
14th June 2025
28AQI
28AQI
15th June 2025
23AQI
23AQI
16th June 2025
23AQI
23AQI
17th June 2025
24AQI
24AQI
18th June 2025
27AQI
27AQI
19th June 2025
25AQI
25AQI
20th June 2025
31AQI
31AQI
21st June 2025
38AQI
38AQI
22nd June 2025
36AQI
36AQI
23rd June 2025
25AQI
25AQI
24th June 2025
27AQI
27AQI
25th June 2025
28AQI
28AQI
26th June 2025
29AQI
29AQI
27th June 2025
31AQI
31AQI
28th June 2025
35AQI
35AQI
29th June 2025
34AQI
34AQI
30th June 2025
29AQI
29AQI
1st July 2025
30AQI
30AQI
2nd July 2025
25AQI
25AQI
3rd July 2025
26AQI
26AQI
4th July 2025
25AQI
25AQI
5th July 2025
31AQI
31AQI
6th July 2025
26AQI
26AQI
7th July 2025
22AQI
22AQI
8th July 2025
23AQI
23AQI
9th July 2025
25AQI
25AQI
10th July 2025
29AQI
29AQI
11th July 2025
35AQI
35AQI
12th July 2025
42AQI
42AQI
13th July 2025
38AQI
38AQI
14th July 2025
36AQI
36AQI
15th July 2025
33AQI
33AQI
16th July 2025
37AQI
37AQI
17th July 2025
42AQI
42AQI
18th July 2025
37AQI
37AQI
19th July 2025
31AQI
31AQI
20th July 2025
25AQI
25AQI
21st July 2025
23AQI
23AQI
22nd July 2025
23AQI
23AQI
23rd July 2025
23AQI
23AQI
24th July 2025
26AQI
26AQI
25th July 2025
28AQI
28AQI
26th July 2025
32AQI
32AQI
27th July 2025
34AQI
34AQI
28th July 2025
33AQI
33AQI
29th July 2025
39AQI
39AQI
30th July 2025
34AQI
34AQI
31st July 2025
50AQI
50AQI
1st August 2025
38AQI
38AQI
2nd August 2025
29AQI
29AQI
3rd August 2025
24AQI
24AQI
4th August 2025
37AQI
37AQI
5th August 2025
47AQI
47AQI
6th August 2025
48AQI
48AQI
7th August 2025
44AQI
44AQI
8th August 2025
39AQI
39AQI
9th August 2025
32AQI
32AQI
10th August 2025
30AQI
30AQI
11th August 2025
29AQI
29AQI
12th August 2025
29AQI
29AQI
13th August 2025
37AQI
37AQI
14th August 2025
52AQI
52AQI
23AQI
20AQI
19AQI
27AQI
31AQI
37AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202526AQI
6
30
31
30
31
13
1
141
1
Highest AQI recorded in
August37AQI
Lowest AQI recorded in
May19AQI
Most & Least Polluted Years Over the Last 1 Years
Most Polluted Year Recorded
2025(Avg.)
26AQILeast Polluted Year Recorded
2025(Avg.)
26AQIGolden's annual 2025 AQI (26) shows an average percentage change of NaN% (improved AQI) compared to previous years: .
