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!
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
August Air Quality Analysis
Greeley, Colorado, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Aug 2021
111AQILowest AQI recorded on
18th Aug 2024
10AQISame Day Analysis (6th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 88 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 6th Aug - 7th Aug 2025
Greeley, Colorado, United States
AQI
Day
Night
.
5 AM6th Aug 2025
8 PM
4 AM7th Aug 2025
Day time
Avg. Highest Time
8AM6th Aug
136AQI
Avg. Lowest Time
6PM6th Aug
58AQI
Night time
Avg. Highest Time
5AM6th Aug
106AQI
Avg. Lowest Time
10PM6th Aug
55AQI
In the last 24 hours,
Greeley's AQI reached its highest point of 136 at 8 AM during the Day, while the lowest point, 55, was recorded at 10 PM during the Night between 6th Aug and 7th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Greeley, 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 - 07th07th
Day
Night
8th Jul 2025315 AMAQI
8th Jul 2025276 AMAQI
8th Jul 2025317 AMAQI
8th Jul 2025328 AMAQI
8th Jul 2025329 AMAQI
8th Jul 20253210 AMAQI
8th Jul 20253611 AMAQI
8th Jul 20253812 PMAQI
8th Jul 2025371 PMAQI
8th Jul 2025392 PMAQI
8th Jul 2025383 PMAQI
8th Jul 2025344 PMAQI
8th Jul 2025325 PMAQI
8th Jul 2025316 PMAQI
8th Jul 2025337 PMAQI
8th Jul 2025338 PMAQI
8th Jul 2025299 PMAQI
8th Jul 20252910 PMAQI
8th Jul 20253211 PMAQI
9th Jul 20253112 AMAQI
9th Jul 2025331 AMAQI
9th Jul 2025322 AMAQI
9th Jul 2025363 AMAQI
9th Jul 2025364 AMAQI
24°C12/36°C
9th Jul 2025375 AMAQI
9th Jul 2025326 AMAQI
9th Jul 2025337 AMAQI
9th Jul 2025358 AMAQI
9th Jul 2025379 AMAQI
9th Jul 20253610 AMAQI
9th Jul 20253511 AMAQI
9th Jul 20253812 PMAQI
9th Jul 2025401 PMAQI
9th Jul 2025402 PMAQI
9th Jul 2025323 PMAQI
9th Jul 2025284 PMAQI
9th Jul 2025275 PMAQI
9th Jul 2025286 PMAQI
9th Jul 2025317 PMAQI
9th Jul 2025298 PMAQI
9th Jul 2025279 PMAQI
9th Jul 20253110 PMAQI
9th Jul 20253411 PMAQI
10th Jul 20253812 AMAQI
10th Jul 2025341 AMAQI
10th Jul 2025332 AMAQI
10th Jul 2025303 AMAQI
10th Jul 2025334 AMAQI
27°C12/40°C
10th Jul 2025275 AMAQI
10th Jul 2025226 AMAQI
10th Jul 2025237 AMAQI
10th Jul 2025228 AMAQI
10th Jul 2025289 AMAQI
10th Jul 20253010 AMAQI
10th Jul 20252811 AMAQI
10th Jul 20253212 PMAQI
10th Jul 2025291 PMAQI
10th Jul 2025342 PMAQI
10th Jul 2025373 PMAQI
10th Jul 2025464 PMAQI
10th Jul 2025485 PMAQI
10th Jul 2025486 PMAQI
10th Jul 2025377 PMAQI
10th Jul 2025348 PMAQI
10th Jul 2025479 PMAQI
10th Jul 20254510 PMAQI
10th Jul 20254211 PMAQI
11th Jul 20254312 AMAQI
11th Jul 2025441 AMAQI
11th Jul 2025472 AMAQI
11th Jul 2025463 AMAQI
11th Jul 2025434 AMAQI
24°C16/37°C
11th Jul 2025495 AMAQI
11th Jul 2025486 AMAQI
11th Jul 2025517 AMAQI
11th Jul 2025528 AMAQI
11th Jul 2025559 AMAQI
11th Jul 20255410 AMAQI
11th Jul 20255011 AMAQI
11th Jul 20254612 PMAQI
11th Jul 2025411 PMAQI
11th Jul 2025382 PMAQI
11th Jul 2025403 PMAQI
11th Jul 2025394 PMAQI
11th Jul 2025395 PMAQI
11th Jul 2025386 PMAQI
11th Jul 2025457 PMAQI
11th Jul 2025488 PMAQI
11th Jul 2025539 PMAQI
11th Jul 20255510 PMAQI
11th Jul 20255611 PMAQI
12th Jul 20256012 AMAQI
12th Jul 2025651 AMAQI
12th Jul 2025582 AMAQI
12th Jul 2025583 AMAQI
12th Jul 2025564 AMAQI
21°C12/31°C
12th Jul 2025595 AMAQI
12th Jul 2025566 AMAQI
12th Jul 2025577 AMAQI
12th Jul 2025568 AMAQI
12th Jul 2025569 AMAQI
12th Jul 20255710 AMAQI
12th Jul 20255811 AMAQI
12th Jul 20255912 PMAQI
12th Jul 2025581 PMAQI
12th Jul 2025582 PMAQI
12th Jul 2025573 PMAQI
12th Jul 2025564 PMAQI
12th Jul 2025545 PMAQI
12th Jul 2025536 PMAQI
12th Jul 2025547 PMAQI
12th Jul 2025528 PMAQI
12th Jul 2025479 PMAQI
12th Jul 20254810 PMAQI
12th Jul 20254911 PMAQI
13th Jul 20255012 AMAQI
13th Jul 2025511 AMAQI
13th Jul 2025512 AMAQI
13th Jul 2025513 AMAQI
13th Jul 2025504 AMAQI
22°C17/30°C
13th Jul 2025435 AMAQI
13th Jul 2025416 AMAQI
13th Jul 2025457 AMAQI
13th Jul 2025468 AMAQI
13th Jul 2025479 AMAQI
13th Jul 20254610 AMAQI
13th Jul 20254811 AMAQI
13th Jul 20254412 PMAQI
13th Jul 2025411 PMAQI
13th Jul 2025422 PMAQI
13th Jul 2025423 PMAQI
13th Jul 2025404 PMAQI
13th Jul 2025385 PMAQI
13th Jul 2025396 PMAQI
13th Jul 2025437 PMAQI
13th Jul 2025438 PMAQI
13th Jul 2025379 PMAQI
13th Jul 20253610 PMAQI
13th Jul 20253811 PMAQI
14th Jul 20253812 AMAQI
14th Jul 2025391 AMAQI
14th Jul 2025432 AMAQI
14th Jul 2025423 AMAQI
14th Jul 2025424 AMAQI
26°C14/36°C
14th Jul 2025415 AMAQI
14th Jul 2025426 AMAQI
14th Jul 2025427 AMAQI
14th Jul 2025488 AMAQI
14th Jul 2025499 AMAQI
14th Jul 20255010 AMAQI
14th Jul 20255011 AMAQI
14th Jul 20254712 PMAQI
14th Jul 2025411 PMAQI
14th Jul 2025382 PMAQI
14th Jul 2025413 PMAQI
14th Jul 2025404 PMAQI
14th Jul 2025375 PMAQI
14th Jul 2025366 PMAQI
14th Jul 2025407 PMAQI
14th Jul 2025408 PMAQI
14th Jul 2025349 PMAQI
14th Jul 20253110 PMAQI
14th Jul 20253111 PMAQI
15th Jul 20253212 AMAQI
15th Jul 2025321 AMAQI
15th Jul 2025312 AMAQI
15th Jul 2025313 AMAQI
15th Jul 2025324 AMAQI
26°C17/38°C
15th Jul 2025305 AMAQI
15th Jul 2025346 AMAQI
15th Jul 2025377 AMAQI
15th Jul 2025388 AMAQI
15th Jul 2025399 AMAQI
15th Jul 20253910 AMAQI
15th Jul 20254011 AMAQI
15th Jul 20253812 PMAQI
15th Jul 2025351 PMAQI
15th Jul 2025352 PMAQI
15th Jul 2025363 PMAQI
15th Jul 2025364 PMAQI
15th Jul 2025345 PMAQI
15th Jul 2025346 PMAQI
15th Jul 2025347 PMAQI
15th Jul 2025348 PMAQI
15th Jul 2025359 PMAQI
15th Jul 20253510 PMAQI
15th Jul 20253711 PMAQI
16th Jul 20253812 AMAQI
16th Jul 2025421 AMAQI
16th Jul 2025432 AMAQI
16th Jul 2025453 AMAQI
16th Jul 2025424 AMAQI
25°C14/35°C
16th Jul 2025455 AMAQI
16th Jul 2025476 AMAQI
16th Jul 2025507 AMAQI
16th Jul 2025528 AMAQI
16th Jul 2025529 AMAQI
16th Jul 20255010 AMAQI
16th Jul 20254811 AMAQI
16th Jul 20254712 PMAQI
16th Jul 2025471 PMAQI
16th Jul 2025472 PMAQI
16th Jul 2025493 PMAQI
16th Jul 2025464 PMAQI
16th Jul 2025455 PMAQI
16th Jul 2025476 PMAQI
16th Jul 2025467 PMAQI
16th Jul 2025468 PMAQI
16th Jul 2025459 PMAQI
16th Jul 20254310 PMAQI
16th Jul 20254311 PMAQI
17th Jul 20254112 AMAQI
17th Jul 2025431 AMAQI
17th Jul 2025432 AMAQI
17th Jul 2025433 AMAQI
17th Jul 2025434 AMAQI
22°C16/28°C
17th Jul 2025435 AMAQI
17th Jul 2025496 AMAQI
17th Jul 2025537 AMAQI
17th Jul 2025548 AMAQI
17th Jul 2025569 AMAQI
17th Jul 20255910 AMAQI
17th Jul 20255911 AMAQI
17th Jul 20256112 PMAQI
17th Jul 2025611 PMAQI
17th Jul 2025612 PMAQI
17th Jul 2025583 PMAQI
17th Jul 2025584 PMAQI
17th Jul 2025605 PMAQI
17th Jul 2025616 PMAQI
17th Jul 2025567 PMAQI
17th Jul 2025558 PMAQI
17th Jul 2025559 PMAQI
17th Jul 20255310 PMAQI
17th Jul 20255211 PMAQI
18th Jul 20255212 AMAQI
18th Jul 2025521 AMAQI
18th Jul 2025502 AMAQI
18th Jul 2025503 AMAQI
18th Jul 2025504 AMAQI
22°C15/31°C
18th Jul 2025525 AMAQI
18th Jul 2025546 AMAQI
18th Jul 2025567 AMAQI
18th Jul 2025578 AMAQI
18th Jul 2025579 AMAQI
18th Jul 20255710 AMAQI
18th Jul 20255611 AMAQI
18th Jul 20255412 PMAQI
18th Jul 2025531 PMAQI
18th Jul 2025532 PMAQI
18th Jul 2025543 PMAQI
18th Jul 2025534 PMAQI
18th Jul 2025525 PMAQI
18th Jul 2025516 PMAQI
18th Jul 2025527 PMAQI
18th Jul 2025528 PMAQI
18th Jul 2025509 PMAQI
18th Jul 20254910 PMAQI
18th Jul 20255011 PMAQI
19th Jul 20255012 AMAQI
19th Jul 2025501 AMAQI
19th Jul 2025522 AMAQI
19th Jul 2025523 AMAQI
19th Jul 2025534 AMAQI
25°C14/37°C
19th Jul 2025545 AMAQI
19th Jul 2025556 AMAQI
19th Jul 2025547 AMAQI
19th Jul 2025548 AMAQI
19th Jul 2025549 AMAQI
19th Jul 20255410 AMAQI
19th Jul 20255411 AMAQI
19th Jul 20255412 PMAQI
19th Jul 2025521 PMAQI
19th Jul 2025512 PMAQI
19th Jul 2025513 PMAQI
19th Jul 2025494 PMAQI
19th Jul 2025485 PMAQI
19th Jul 2025466 PMAQI
19th Jul 2025477 PMAQI
19th Jul 2025488 PMAQI
19th Jul 2025419 PMAQI
19th Jul 20254110 PMAQI
19th Jul 20253911 PMAQI
20th Jul 20253712 AMAQI
20th Jul 2025381 AMAQI
20th Jul 2025412 AMAQI
20th Jul 2025423 AMAQI
20th Jul 2025434 AMAQI
24°C14/35°C
20th Jul 2025375 AMAQI
20th Jul 2025376 AMAQI
20th Jul 2025407 AMAQI
20th Jul 2025408 AMAQI
20th Jul 2025389 AMAQI
20th Jul 20253610 AMAQI
20th Jul 20253611 AMAQI
20th Jul 20253212 PMAQI
20th Jul 2025311 PMAQI
20th Jul 2025322 PMAQI
20th Jul 2025353 PMAQI
20th Jul 2025354 PMAQI
20th Jul 2025355 PMAQI
20th Jul 2025356 PMAQI
20th Jul 2025347 PMAQI
20th Jul 2025348 PMAQI
20th Jul 2025339 PMAQI
20th Jul 20253210 PMAQI
20th Jul 20253311 PMAQI
21st Jul 20253512 AMAQI
21st Jul 2025331 AMAQI
21st Jul 2025342 AMAQI
21st Jul 2025333 AMAQI
21st Jul 2025344 AMAQI
26°C18/37°C
21st Jul 2025285 AMAQI
21st Jul 2025306 AMAQI
21st Jul 2025367 AMAQI
21st Jul 2025408 AMAQI
21st Jul 2025429 AMAQI
21st Jul 20254410 AMAQI
21st Jul 20254611 AMAQI
21st Jul 20254412 PMAQI
21st Jul 2025441 PMAQI
21st Jul 2025412 PMAQI
21st Jul 2025363 PMAQI
21st Jul 2025334 PMAQI
21st Jul 2025315 PMAQI
21st Jul 2025306 PMAQI
21st Jul 2025327 PMAQI
21st Jul 2025318 PMAQI
21st Jul 2025309 PMAQI
21st Jul 20253210 PMAQI
21st Jul 20253311 PMAQI
22nd Jul 20253512 AMAQI
22nd Jul 2025381 AMAQI
22nd Jul 2025382 AMAQI
22nd Jul 2025393 AMAQI
22nd Jul 2025384 AMAQI
25°C14/39°C
22nd Jul 2025405 AMAQI
22nd Jul 2025366 AMAQI
22nd Jul 2025377 AMAQI
22nd Jul 2025388 AMAQI
22nd Jul 2025449 AMAQI
22nd Jul 20254810 AMAQI
22nd Jul 20254811 AMAQI
22nd Jul 20254312 PMAQI
22nd Jul 2025391 PMAQI
22nd Jul 2025362 PMAQI
22nd Jul 2025373 PMAQI
22nd Jul 2025374 PMAQI
22nd Jul 2025375 PMAQI
22nd Jul 2025366 PMAQI
22nd Jul 2025377 PMAQI
22nd Jul 2025368 PMAQI
22nd Jul 2025329 PMAQI
22nd Jul 20253010 PMAQI
22nd Jul 20253211 PMAQI
23rd Jul 20253112 AMAQI
23rd Jul 2025301 AMAQI
23rd Jul 2025292 AMAQI
23rd Jul 2025273 AMAQI
23rd Jul 2025254 AMAQI
27°C17/37°C
23rd Jul 2025175 AMAQI
23rd Jul 2025156 AMAQI
23rd Jul 2025207 AMAQI
23rd Jul 2025238 AMAQI
23rd Jul 2025289 AMAQI
23rd Jul 20253110 AMAQI
23rd Jul 20253411 AMAQI
23rd Jul 20253512 PMAQI
23rd Jul 2025351 PMAQI
23rd Jul 2025342 PMAQI
23rd Jul 2025333 PMAQI
23rd Jul 2025324 PMAQI
23rd Jul 2025325 PMAQI
23rd Jul 2025326 PMAQI
23rd Jul 2025307 PMAQI
23rd Jul 2025298 PMAQI
23rd Jul 2025309 PMAQI
23rd Jul 20252810 PMAQI
23rd Jul 20252811 PMAQI
24th Jul 20252612 AMAQI
24th Jul 2025261 AMAQI
24th Jul 2025282 AMAQI
24th Jul 2025283 AMAQI
24th Jul 2025274 AMAQI
23°C18/32°C
24th Jul 2025275 AMAQI
24th Jul 2025256 AMAQI
24th Jul 2025267 AMAQI
24th Jul 2025268 AMAQI
24th Jul 2025289 AMAQI
24th Jul 20252910 AMAQI
24th Jul 20253111 AMAQI
24th Jul 20253812 PMAQI
24th Jul 2025431 PMAQI
24th Jul 2025442 PMAQI
24th Jul 2025383 PMAQI
24th Jul 2025344 PMAQI
24th Jul 2025345 PMAQI
24th Jul 2025356 PMAQI
24th Jul 2025327 PMAQI
24th Jul 2025328 PMAQI
24th Jul 2025379 PMAQI
24th Jul 20253510 PMAQI
24th Jul 20253311 PMAQI
25th Jul 20253212 AMAQI
25th Jul 2025301 AMAQI
25th Jul 2025342 AMAQI
25th Jul 2025323 AMAQI
25th Jul 2025324 AMAQI
20°C14/32°C
25th Jul 2025355 AMAQI
25th Jul 2025406 AMAQI
25th Jul 2025407 AMAQI
25th Jul 2025428 AMAQI
25th Jul 2025449 AMAQI
25th Jul 20254310 AMAQI
25th Jul 20254611 AMAQI
25th Jul 20254512 PMAQI
25th Jul 2025411 PMAQI
25th Jul 2025412 PMAQI
25th Jul 2025403 PMAQI
25th Jul 2025404 PMAQI
25th Jul 2025425 PMAQI
25th Jul 2025416 PMAQI
25th Jul 2025387 PMAQI
25th Jul 2025378 PMAQI
25th Jul 2025389 PMAQI
25th Jul 20254010 PMAQI
25th Jul 20254511 PMAQI
26th Jul 20254412 AMAQI
26th Jul 2025441 AMAQI
26th Jul 2025472 AMAQI
26th Jul 2025463 AMAQI
26th Jul 2025444 AMAQI
23°C14/34°C
26th Jul 2025435 AMAQI
26th Jul 2025426 AMAQI
26th Jul 2025437 AMAQI
26th Jul 2025488 AMAQI
26th Jul 2025519 AMAQI
26th Jul 20255210 AMAQI
26th Jul 20255211 AMAQI
26th Jul 20255212 PMAQI
26th Jul 2025521 PMAQI
26th Jul 2025482 PMAQI
26th Jul 2025473 PMAQI
26th Jul 2025454 PMAQI
26th Jul 2025445 PMAQI
26th Jul 2025406 PMAQI
26th Jul 2025437 PMAQI
26th Jul 2025438 PMAQI
26th Jul 2025359 PMAQI
26th Jul 20253510 PMAQI
26th Jul 20253711 PMAQI
27th Jul 20254012 AMAQI
27th Jul 2025421 AMAQI
27th Jul 2025452 AMAQI
27th Jul 2025443 AMAQI
27th Jul 2025484 AMAQI
24°C15/36°C
27th Jul 2025505 AMAQI
27th Jul 2025516 AMAQI
27th Jul 2025477 AMAQI
27th Jul 2025468 AMAQI
27th Jul 2025449 AMAQI
27th Jul 20254710 AMAQI
27th Jul 20255011 AMAQI
27th Jul 20254912 PMAQI
27th Jul 2025421 PMAQI
27th Jul 2025372 PMAQI
27th Jul 2025353 PMAQI
27th Jul 2025334 PMAQI
27th Jul 2025315 PMAQI
27th Jul 2025296 PMAQI
27th Jul 2025377 PMAQI
27th Jul 2025378 PMAQI
27th Jul 2025279 PMAQI
27th Jul 20252810 PMAQI
27th Jul 20253211 PMAQI
28th Jul 20253612 AMAQI
28th Jul 2025381 AMAQI
28th Jul 2025422 AMAQI
28th Jul 2025443 AMAQI
28th Jul 2025424 AMAQI
25°C12/37°C
28th Jul 2025455 AMAQI
28th Jul 2025486 AMAQI
28th Jul 2025487 AMAQI
28th Jul 2025488 AMAQI
28th Jul 2025489 AMAQI
28th Jul 20254410 AMAQI
28th Jul 20254411 AMAQI
28th Jul 20254012 PMAQI
28th Jul 2025391 PMAQI
28th Jul 2025392 PMAQI
28th Jul 2025403 PMAQI
28th Jul 2025384 PMAQI
28th Jul 2025345 PMAQI
28th Jul 2025346 PMAQI
28th Jul 2025357 PMAQI
28th Jul 2025368 PMAQI
28th Jul 2025389 PMAQI
28th Jul 20254210 PMAQI
28th Jul 20254811 PMAQI
29th Jul 20255012 AMAQI
29th Jul 2025511 AMAQI
29th Jul 2025522 AMAQI
29th Jul 2025523 AMAQI
29th Jul 2025514 AMAQI
27°C12/39°C
29th Jul 2025535 AMAQI
29th Jul 2025556 AMAQI
29th Jul 2025557 AMAQI
29th Jul 2025558 AMAQI
29th Jul 2025559 AMAQI
29th Jul 20255710 AMAQI
29th Jul 20255811 AMAQI
29th Jul 20255712 PMAQI
29th Jul 2025561 PMAQI
29th Jul 2025542 PMAQI
29th Jul 2025543 PMAQI
29th Jul 2025534 PMAQI
29th Jul 2025525 PMAQI
29th Jul 2025526 PMAQI
29th Jul 2025527 PMAQI
29th Jul 2025528 PMAQI
29th Jul 2025519 PMAQI
29th Jul 20255210 PMAQI
29th Jul 20255011 PMAQI
30th Jul 20254912 AMAQI
30th Jul 2025481 AMAQI
30th Jul 2025462 AMAQI
30th Jul 2025433 AMAQI
30th Jul 2025424 AMAQI
24°C19/31°C
30th Jul 2025385 AMAQI
30th Jul 2025406 AMAQI
30th Jul 2025447 AMAQI
30th Jul 2025458 AMAQI
30th Jul 2025479 AMAQI
30th Jul 20254710 AMAQI
30th Jul 20254611 AMAQI
30th Jul 20254812 PMAQI
30th Jul 2025481 PMAQI
30th Jul 2025452 PMAQI
30th Jul 2025453 PMAQI
30th Jul 2025454 PMAQI
30th Jul 2025455 PMAQI
30th Jul 2025456 PMAQI
30th Jul 2025457 PMAQI
30th Jul 2025458 PMAQI
30th Jul 2025469 PMAQI
30th Jul 20254810 PMAQI
30th Jul 20254911 PMAQI
31st Jul 20254912 AMAQI
31st Jul 2025501 AMAQI
31st Jul 2025502 AMAQI
31st Jul 2025493 AMAQI
31st Jul 2025504 AMAQI
21°C16/28°C
31st Jul 2025515 AMAQI
31st Jul 2025526 AMAQI
31st Jul 2025527 AMAQI
31st Jul 2025528 AMAQI
31st Jul 2025529 AMAQI
31st Jul 20255410 AMAQI
31st Jul 20255811 AMAQI
31st Jul 20255912 PMAQI
31st Jul 2025591 PMAQI
31st Jul 2025582 PMAQI
31st Jul 2025583 PMAQI
31st Jul 2025564 PMAQI
31st Jul 2025545 PMAQI
31st Jul 2025546 PMAQI
31st Jul 2025537 PMAQI
31st Jul 2025558 PMAQI
31st Jul 2025599 PMAQI
31st Jul 20255610 PMAQI
31st Jul 20255311 PMAQI
1st Aug 20254812 AMAQI
1st Aug 2025481 AMAQI
1st Aug 2025482 AMAQI
1st Aug 2025503 AMAQI
1st Aug 2025494 AMAQI
21°C14/32°C
1st Aug 2025505 AMAQI
1st Aug 2025536 AMAQI
1st Aug 2025547 AMAQI
1st Aug 2025588 AMAQI
1st Aug 2025619 AMAQI
1st Aug 20256110 AMAQI
1st Aug 20256111 AMAQI
1st Aug 20255912 PMAQI
1st Aug 2025571 PMAQI
1st Aug 2025562 PMAQI
1st Aug 2025533 PMAQI
1st Aug 2025484 PMAQI
1st Aug 2025485 PMAQI
1st Aug 2025476 PMAQI
1st Aug 2025537 PMAQI
1st Aug 2025468 PMAQI
1st Aug 2025389 PMAQI
1st Aug 20253710 PMAQI
1st Aug 20253711 PMAQI
2nd Aug 20253812 AMAQI
2nd Aug 2025371 AMAQI
2nd Aug 2025342 AMAQI
2nd Aug 2025333 AMAQI
2nd Aug 2025364 AMAQI
21°C13/32°C
2nd Aug 2025375 AMAQI
2nd Aug 2025396 AMAQI
2nd Aug 2025417 AMAQI
2nd Aug 2025448 AMAQI
2nd Aug 2025469 AMAQI
2nd Aug 20254610 AMAQI
2nd Aug 20254811 AMAQI
2nd Aug 20255112 PMAQI
2nd Aug 2025501 PMAQI
2nd Aug 2025512 PMAQI
2nd Aug 2025473 PMAQI
2nd Aug 2025414 PMAQI
2nd Aug 2025385 PMAQI
2nd Aug 2025356 PMAQI
2nd Aug 2025387 PMAQI
2nd Aug 2025348 PMAQI
2nd Aug 2025369 PMAQI
2nd Aug 20254110 PMAQI
2nd Aug 20253611 PMAQI
3rd Aug 20252812 AMAQI
3rd Aug 2025261 AMAQI
3rd Aug 2025242 AMAQI
3rd Aug 2025233 AMAQI
3rd Aug 2025234 AMAQI
20°C10/31°C
3rd Aug 2025235 AMAQI
3rd Aug 2025256 AMAQI
3rd Aug 2025287 AMAQI
3rd Aug 2025328 AMAQI
3rd Aug 2025349 AMAQI
3rd Aug 20253210 AMAQI
3rd Aug 20253611 AMAQI
3rd Aug 20253412 PMAQI
3rd Aug 2025291 PMAQI
3rd Aug 2025262 PMAQI
3rd Aug 2025213 PMAQI
3rd Aug 2025214 PMAQI
3rd Aug 2025225 PMAQI
3rd Aug 2025216 PMAQI
3rd Aug 2025257 PMAQI
3rd Aug 2025238 PMAQI
3rd Aug 2025209 PMAQI
3rd Aug 20252410 PMAQI
3rd Aug 20252211 PMAQI
4th Aug 20252512 AMAQI
4th Aug 2025261 AMAQI
4th Aug 2025262 AMAQI
4th Aug 2025323 AMAQI
4th Aug 2025384 AMAQI
22°C11/33°C
4th Aug 2025385 AMAQI
4th Aug 2025426 AMAQI
4th Aug 2025447 AMAQI
4th Aug 2025468 AMAQI
4th Aug 2025499 AMAQI
4th Aug 20254910 AMAQI
4th Aug 20254911 AMAQI
4th Aug 20254612 PMAQI
4th Aug 2025441 PMAQI
4th Aug 2025442 PMAQI
4th Aug 2025453 PMAQI
4th Aug 2025464 PMAQI
4th Aug 2025425 PMAQI
4th Aug 2025426 PMAQI
4th Aug 2025397 PMAQI
4th Aug 2025448 PMAQI
4th Aug 2025509 PMAQI
4th Aug 20255510 PMAQI
4th Aug 20255511 PMAQI
5th Aug 20255512 AMAQI
5th Aug 2025531 AMAQI
5th Aug 2025532 AMAQI
5th Aug 2025533 AMAQI
5th Aug 2025514 AMAQI
24°C13/36°C
5th Aug 2025535 AMAQI
5th Aug 2025546 AMAQI
5th Aug 2025557 AMAQI
5th Aug 2025568 AMAQI
5th Aug 2025599 AMAQI
5th Aug 20255910 AMAQI
5th Aug 20256011 AMAQI
5th Aug 20255812 PMAQI
5th Aug 2025581 PMAQI
5th Aug 2025582 PMAQI
5th Aug 2025583 PMAQI
5th Aug 2025554 PMAQI
5th Aug 2025505 PMAQI
5th Aug 2025486 PMAQI
5th Aug 2025547 PMAQI
5th Aug 2025548 PMAQI
5th Aug 2025569 PMAQI
5th Aug 20255810 PMAQI
5th Aug 20255811 PMAQI
6th Aug 20256112 AMAQI
6th Aug 2025661 AMAQI
6th Aug 2025772 AMAQI
6th Aug 2025883 AMAQI
6th Aug 2025944 AMAQI
26°C14/38°C
6th Aug 20251065 AMAQI
6th Aug 20251356 AMAQI
6th Aug 20251327 AMAQI
6th Aug 20251368 AMAQI
6th Aug 20251249 AMAQI
6th Aug 202511910 AMAQI
6th Aug 202510711 AMAQI
6th Aug 20259212 PMAQI
6th Aug 2025851 PMAQI
6th Aug 2025822 PMAQI
6th Aug 2025743 PMAQI
6th Aug 2025644 PMAQI
6th Aug 2025595 PMAQI
6th Aug 2025586 PMAQI
6th Aug 2025747 PMAQI
6th Aug 2025648 PMAQI
6th Aug 2025559 PMAQI
6th Aug 20255510 PMAQI
6th Aug 20255711 PMAQI
7th Aug 20256212 AMAQI
7th Aug 2025671 AMAQI
7th Aug 2025662 AMAQI
7th Aug 2025673 AMAQI
7th Aug 2025684 AMAQI
25°C10/39°C
7th Aug 2025625 AMAQI
5 AM7th Aug 2025646 AMAQI
7th Aug 2025647 AMAQI
7th Aug 2025658 AMAQI
7th Aug 2025649 AMAQI
7th Aug 20256410 AMAQI
7th Aug 20256411 AMAQI
7th Aug 20256212 PMAQI
12 PM7th Aug 2025601 PMAQI
7th Aug 2025582 PMAQI
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 PM
45AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM
45AQI
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. 45), while the lowest AQI was between 5 AM to 8 PM (Avg. 45).
Night time
Avg. Highest Time
12 AM - 4 AM
42AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
9 PM - 11 PM
41AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 4 AM (Avg. 42), while the lowest AQI was between 9 PM to 11 PM (Avg. 41).
2025 Days Vs Air Quality
Greeley, Colorado, United States
2025
95%
208
5%
10
Total number of days with different AQI categories in last 219 days in 2025 (146 days remaining)
Good
208 DaysModerate
10 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 95%
Health Risk Level:
Very Low
In 2025, 95% of 219 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
Greeley, 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 January 2025
38AQI
38AQI
2nd January 2025
32AQI
32AQI
3rd January 2025
49AQI
49AQI
4th January 2025
30AQI
30AQI
5th January 2025
24AQI
24AQI
6th January 2025
37AQI
37AQI
7th January 2025
37AQI
37AQI
8th January 2025
53AQI
53AQI
9th January 2025
29AQI
29AQI
10th January 2025
30AQI
30AQI
11th January 2025
29AQI
29AQI
12th January 2025
26AQI
26AQI
13th January 2025
26AQI
26AQI
14th January 2025
24AQI
24AQI
15th January 2025
33AQI
33AQI
16th January 2025
47AQI
47AQI
17th January 2025
48AQI
48AQI
18th January 2025
20AQI
20AQI
19th January 2025
29AQI
29AQI
20th January 2025
25AQI
25AQI
21st January 2025
47AQI
47AQI
22nd January 2025
22AQI
22AQI
23rd January 2025
26AQI
26AQI
24th January 2025
31AQI
31AQI
25th January 2025
19AQI
19AQI
26th January 2025
37AQI
37AQI
27th January 2025
58AQI
58AQI
28th January 2025
49AQI
49AQI
29th January 2025
44AQI
44AQI
30th January 2025
32AQI
32AQI
31st January 2025
27AQI
27AQI
1st February 2025
21AQI
21AQI
2nd February 2025
21AQI
21AQI
3rd February 2025
24AQI
24AQI
4th February 2025
41AQI
41AQI
5th February 2025
37AQI
37AQI
6th February 2025
25AQI
25AQI
7th February 2025
33AQI
33AQI
8th February 2025
23AQI
23AQI
9th February 2025
22AQI
22AQI
10th February 2025
23AQI
23AQI
11th February 2025
35AQI
35AQI
12th February 2025
27AQI
27AQI
13th February 2025
32AQI
32AQI
14th February 2025
34AQI
34AQI
15th February 2025
31AQI
31AQI
16th February 2025
31AQI
31AQI
17th February 2025
22AQI
22AQI
18th February 2025
20AQI
20AQI
19th February 2025
16AQI
16AQI
20th February 2025
21AQI
21AQI
21st February 2025
20AQI
20AQI
22nd February 2025
25AQI
25AQI
23rd February 2025
27AQI
27AQI
24th February 2025
15AQI
15AQI
25th February 2025
12AQI
12AQI
26th February 2025
13AQI
13AQI
27th February 2025
13AQI
13AQI
28th February 2025
18AQI
18AQI
1st March 2025
19AQI
19AQI
2nd March 2025
23AQI
23AQI
3rd March 2025
26AQI
26AQI
4th March 2025
15AQI
15AQI
5th March 2025
13AQI
13AQI
6th March 2025
14AQI
14AQI
7th March 2025
11AQI
11AQI
8th March 2025
16AQI
16AQI
9th March 2025
13AQI
13AQI
10th March 2025
18AQI
18AQI
11th March 2025
17AQI
17AQI
12th March 2025
18AQI
18AQI
13th March 2025
33AQI
33AQI
14th March 2025
32AQI
32AQI
15th March 2025
18AQI
18AQI
16th March 2025
16AQI
16AQI
17th March 2025
19AQI
19AQI
18th March 2025
20AQI
20AQI
19th March 2025
19AQI
19AQI
20th March 2025
26AQI
26AQI
21st March 2025
18AQI
18AQI
22nd March 2025
18AQI
18AQI
23rd March 2025
17AQI
17AQI
24th March 2025
21AQI
21AQI
25th March 2025
20AQI
20AQI
26th March 2025
36AQI
36AQI
27th March 2025
39AQI
39AQI
28th March 2025
39AQI
39AQI
29th March 2025
23AQI
23AQI
30th March 2025
22AQI
22AQI
31st March 2025
35AQI
35AQI
1st April 2025
19AQI
19AQI
2nd April 2025
17AQI
17AQI
3rd April 2025
18AQI
18AQI
4th April 2025
19AQI
19AQI
5th April 2025
26AQI
26AQI
6th April 2025
31AQI
31AQI
7th April 2025
30AQI
30AQI
8th April 2025
31AQI
31AQI
9th April 2025
39AQI
39AQI
10th April 2025
42AQI
42AQI
11th April 2025
44AQI
44AQI
12th April 2025
39AQI
39AQI
13th April 2025
23AQI
23AQI
14th April 2025
22AQI
22AQI
15th April 2025
32AQI
32AQI
16th April 2025
34AQI
34AQI
17th April 2025
26AQI
26AQI
18th April 2025
14AQI
14AQI
19th April 2025
18AQI
18AQI
20th April 2025
23AQI
23AQI
21st April 2025
16AQI
16AQI
22nd April 2025
25AQI
25AQI
23rd April 2025
33AQI
33AQI
24th April 2025
46AQI
46AQI
25th April 2025
18AQI
18AQI
26th April 2025
22AQI
22AQI
27th April 2025
42AQI
42AQI
28th April 2025
16AQI
16AQI
29th April 2025
15AQI
15AQI
30th April 2025
17AQI
17AQI
1st May 2025
16AQI
16AQI
2nd May 2025
17AQI
17AQI
3rd May 2025
21AQI
21AQI
4th May 2025
24AQI
24AQI
5th May 2025
22AQI
22AQI
6th May 2025
21AQI
21AQI
7th May 2025
24AQI
24AQI
8th May 2025
38AQI
38AQI
9th May 2025
33AQI
33AQI
10th May 2025
35AQI
35AQI
11th May 2025
26AQI
26AQI
12th May 2025
24AQI
24AQI
13th May 2025
37AQI
37AQI
14th May 2025
35AQI
35AQI
15th May 2025
15AQI
15AQI
16th May 2025
15AQI
15AQI
17th May 2025
19AQI
19AQI
18th May 2025
30AQI
30AQI
19th May 2025
13AQI
13AQI
20th May 2025
14AQI
14AQI
21st May 2025
14AQI
14AQI
22nd May 2025
20AQI
20AQI
23rd May 2025
31AQI
31AQI
24th May 2025
37AQI
37AQI
25th May 2025
16AQI
16AQI
26th May 2025
18AQI
18AQI
27th May 2025
31AQI
31AQI
28th May 2025
28AQI
28AQI
29th May 2025
20AQI
20AQI
30th May 2025
28AQI
28AQI
31st May 2025
24AQI
24AQI
1st June 2025
31AQI
31AQI
2nd June 2025
23AQI
23AQI
3rd June 2025
18AQI
18AQI
4th June 2025
35AQI
35AQI
5th June 2025
40AQI
40AQI
6th June 2025
23AQI
23AQI
7th June 2025
24AQI
24AQI
8th June 2025
45AQI
45AQI
9th June 2025
53AQI
53AQI
10th June 2025
48AQI
48AQI
11th June 2025
35AQI
35AQI
12th June 2025
32AQI
32AQI
13th June 2025
36AQI
36AQI
14th June 2025
34AQI
34AQI
15th June 2025
30AQI
30AQI
16th June 2025
26AQI
26AQI
17th June 2025
28AQI
28AQI
18th June 2025
26AQI
26AQI
19th June 2025
33AQI
33AQI
20th June 2025
33AQI
33AQI
21st June 2025
47AQI
47AQI
22nd June 2025
46AQI
46AQI
23rd June 2025
46AQI
46AQI
24th June 2025
47AQI
47AQI
25th June 2025
36AQI
36AQI
26th June 2025
30AQI
30AQI
27th June 2025
37AQI
37AQI
28th June 2025
38AQI
38AQI
29th June 2025
36AQI
36AQI
30th June 2025
29AQI
29AQI
1st July 2025
34AQI
34AQI
2nd July 2025
39AQI
39AQI
3rd July 2025
32AQI
32AQI
4th July 2025
29AQI
29AQI
5th July 2025
38AQI
38AQI
6th July 2025
31AQI
31AQI
7th July 2025
31AQI
31AQI
8th July 2025
32AQI
32AQI
9th July 2025
33AQI
33AQI
10th July 2025
35AQI
35AQI
11th July 2025
47AQI
47AQI
12th July 2025
56AQI
56AQI
13th July 2025
44AQI
44AQI
14th July 2025
40AQI
40AQI
15th July 2025
35AQI
35AQI
16th July 2025
46AQI
46AQI
17th July 2025
52AQI
52AQI
18th July 2025
52AQI
52AQI
19th July 2025
50AQI
50AQI
20th July 2025
36AQI
36AQI
21st July 2025
35AQI
35AQI
22nd July 2025
38AQI
38AQI
23rd July 2025
29AQI
29AQI
24th July 2025
32AQI
32AQI
25th July 2025
38AQI
38AQI
26th July 2025
44AQI
44AQI
27th July 2025
40AQI
40AQI
28th July 2025
41AQI
41AQI
29th July 2025
53AQI
53AQI
30th July 2025
45AQI
45AQI
31st July 2025
54AQI
54AQI
1st August 2025
50AQI
50AQI
2nd August 2025
40AQI
40AQI
3rd August 2025
26AQI
26AQI
4th August 2025
41AQI
41AQI
5th August 2025
55AQI
55AQI
6th August 2025
88AQI
88AQI
34AQI
24AQI
22AQI
27AQI
24AQI
35AQI
40AQI
50AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202530AQI
29
2
28
31
30
31
29
1
26
5
4
2
208
10
Highest AQI recorded in
August50AQI
Lowest AQI recorded in
March22AQI
202428AQI
28
3
26
3
31
30
28
29
25
6
28
3
30
20
11
28
2
29
2
332
30
Highest AQI recorded in
October42AQI
Lowest AQI recorded in
May14AQI
202330AQI
19
12
20
8
31
30
24
4
1
1
30
31
30
1
29
1
30
1
24
4
31
329
31
1
1
Highest AQI recorded in
January43AQI
Lowest AQI recorded in
December21AQI
202229AQI
16
14
16
6
27
4
28
2
31
29
1
19
1
2
29
31
30
26
5
284
33
Highest AQI recorded in
January47AQI
Lowest AQI recorded in
July20AQI
202138AQI
24
6
20
7
1
27
2
2
30
26
2
24
3
21
10
13
16
2
20
10
30
1
25
5
24
7
284
69
5
Highest AQI recorded in
August62AQI
Lowest AQI recorded in
May26AQI
202041AQI
11
2
18
2
18
30
27
2
20
10
1
11
16
3
15
12
4
22
7
25
6
197
57
8
Highest AQI recorded in
September62AQI
Lowest AQI recorded in
May22AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2020(Avg.)
41AQILeast Polluted Year Recorded
2024(Avg.)
28AQIGreeley's annual 2025 AQI (30) shows an average percentage change of -7.2% (improved AQI) compared to previous years: 2020 (41), 2021 (38), 2022 (29), 2023 (30), 2024 (28).
