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
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
6th Aug 2025
83AQILowest AQI recorded on
18th Aug 2024
10AQISame Day Analysis (5th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 58 of Moderate air quality on the same day.
Day & Night AQI Trend: 5th Aug - 6th Aug 2026
Greeley, Colorado, United States
AQI
Day
Night
.
5 AM5th Aug 2026
8 PM
4 AM6th Aug 2026
Day time
Avg. Highest Time
4PM5th Aug
61AQI
Avg. Lowest Time
8PM5th Aug
58AQI
Night time
Avg. Highest Time
11PM5th Aug
58AQI
Avg. Lowest Time
4AM6th Aug
50AQI
In the last 24 hours,
Greeley's AQI reached its highest point of 61 at 4 PM during the Day, while the lowest point, 50, was recorded at 4 AM during the Night between 5th Aug and 6th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
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
Day
Night
8th Jul 2026315 AMAQI
8th Jul 2026296 AMAQI
8th Jul 2026287 AMAQI
8th Jul 2026388 AMAQI
8th Jul 2026389 AMAQI
8th Jul 20264110 AMAQI
8th Jul 20263811 AMAQI
8th Jul 20263912 PMAQI
8th Jul 2026261 PMAQI
8th Jul 2026212 PMAQI
8th Jul 2026173 PMAQI
8th Jul 2026204 PMAQI
8th Jul 2026485 PMAQI
8th Jul 2026406 PMAQI
8th Jul 2026417 PMAQI
8th Jul 2026258 PMAQI
8th Jul 2026189 PMAQI
8th Jul 20261810 PMAQI
8th Jul 20261711 PMAQI
9th Jul 20261512 AMAQI
9th Jul 2026141 AMAQI
9th Jul 2026132 AMAQI
9th Jul 2026123 AMAQI
9th Jul 2026124 AMAQI
26°C16/37°C
9th Jul 2026145 AMAQI
9th Jul 2026146 AMAQI
9th Jul 2026147 AMAQI
9th Jul 2026158 AMAQI
9th Jul 2026169 AMAQI
9th Jul 20261510 AMAQI
9th Jul 20261711 AMAQI
9th Jul 20261812 PMAQI
9th Jul 2026201 PMAQI
9th Jul 2026212 PMAQI
9th Jul 2026193 PMAQI
9th Jul 2026184 PMAQI
9th Jul 2026185 PMAQI
9th Jul 2026166 PMAQI
9th Jul 2026147 PMAQI
9th Jul 2026118 PMAQI
9th Jul 2026119 PMAQI
9th Jul 20261310 PMAQI
9th Jul 20263011 PMAQI
10th Jul 20263912 AMAQI
10th Jul 2026291 AMAQI
10th Jul 2026212 AMAQI
10th Jul 2026233 AMAQI
10th Jul 2026174 AMAQI
23°C15/35°C
10th Jul 2026175 AMAQI
10th Jul 2026176 AMAQI
10th Jul 2026177 AMAQI
10th Jul 2026188 AMAQI
10th Jul 2026189 AMAQI
10th Jul 20261810 AMAQI
10th Jul 20262011 AMAQI
10th Jul 20262212 PMAQI
10th Jul 2026221 PMAQI
10th Jul 2026192 PMAQI
10th Jul 2026193 PMAQI
10th Jul 2026184 PMAQI
10th Jul 2026165 PMAQI
10th Jul 2026166 PMAQI
10th Jul 2026167 PMAQI
10th Jul 2026158 PMAQI
10th Jul 2026149 PMAQI
10th Jul 20261410 PMAQI
10th Jul 20261511 PMAQI
11th Jul 20261612 AMAQI
11th Jul 2026181 AMAQI
11th Jul 2026222 AMAQI
11th Jul 2026233 AMAQI
11th Jul 2026264 AMAQI
24°C12/35°C
11th Jul 2026225 AMAQI
11th Jul 2026216 AMAQI
11th Jul 2026197 AMAQI
11th Jul 2026298 AMAQI
11th Jul 2026309 AMAQI
11th Jul 20262910 AMAQI
11th Jul 20262911 AMAQI
11th Jul 20262412 PMAQI
11th Jul 2026261 PMAQI
11th Jul 2026232 PMAQI
11th Jul 2026223 PMAQI
11th Jul 2026194 PMAQI
11th Jul 2026185 PMAQI
11th Jul 2026156 PMAQI
11th Jul 2026137 PMAQI
11th Jul 2026148 PMAQI
11th Jul 2026199 PMAQI
11th Jul 20262510 PMAQI
11th Jul 20262811 PMAQI
12th Jul 20262512 AMAQI
12th Jul 2026231 AMAQI
12th Jul 2026192 AMAQI
12th Jul 2026193 AMAQI
12th Jul 2026194 AMAQI
27°C14/38°C
12th Jul 2026295 AMAQI
12th Jul 2026296 AMAQI
12th Jul 2026257 AMAQI
12th Jul 2026208 AMAQI
12th Jul 2026199 AMAQI
12th Jul 20261910 AMAQI
12th Jul 20262011 AMAQI
12th Jul 20261912 PMAQI
12th Jul 2026181 PMAQI
12th Jul 2026222 PMAQI
12th Jul 2026193 PMAQI
12th Jul 2026184 PMAQI
12th Jul 2026165 PMAQI
12th Jul 2026136 PMAQI
12th Jul 2026127 PMAQI
12th Jul 2026158 PMAQI
12th Jul 2026159 PMAQI
12th Jul 20261710 PMAQI
12th Jul 20261811 PMAQI
13th Jul 20261812 AMAQI
13th Jul 2026181 AMAQI
13th Jul 2026182 AMAQI
13th Jul 2026183 AMAQI
13th Jul 2026164 AMAQI
28°C17/38°C
13th Jul 2026185 AMAQI
13th Jul 2026216 AMAQI
13th Jul 2026217 AMAQI
13th Jul 2026228 AMAQI
13th Jul 2026269 AMAQI
13th Jul 20263410 AMAQI
13th Jul 20263311 AMAQI
13th Jul 20263412 PMAQI
13th Jul 2026341 PMAQI
13th Jul 2026322 PMAQI
13th Jul 2026313 PMAQI
13th Jul 2026264 PMAQI
13th Jul 2026265 PMAQI
13th Jul 2026246 PMAQI
13th Jul 2026247 PMAQI
13th Jul 2026218 PMAQI
13th Jul 2026219 PMAQI
13th Jul 20261910 PMAQI
13th Jul 20261811 PMAQI
14th Jul 20262012 AMAQI
14th Jul 2026211 AMAQI
14th Jul 2026212 AMAQI
14th Jul 2026223 AMAQI
14th Jul 2026204 AMAQI
29°C17/39°C
14th Jul 2026185 AMAQI
14th Jul 2026186 AMAQI
14th Jul 2026227 AMAQI
14th Jul 2026288 AMAQI
14th Jul 2026409 AMAQI
14th Jul 20264310 AMAQI
14th Jul 20264411 AMAQI
14th Jul 20263912 PMAQI
14th Jul 2026381 PMAQI
14th Jul 2026322 PMAQI
14th Jul 2026293 PMAQI
14th Jul 2026244 PMAQI
14th Jul 2026215 PMAQI
14th Jul 2026196 PMAQI
14th Jul 2026197 PMAQI
14th Jul 2026208 PMAQI
14th Jul 2026219 PMAQI
14th Jul 20262010 PMAQI
14th Jul 20262011 PMAQI
15th Jul 20262112 AMAQI
15th Jul 2026211 AMAQI
15th Jul 2026202 AMAQI
15th Jul 2026213 AMAQI
15th Jul 2026194 AMAQI
28°C18/37°C
15th Jul 2026195 AMAQI
15th Jul 2026216 AMAQI
15th Jul 2026217 AMAQI
15th Jul 2026208 AMAQI
15th Jul 2026249 AMAQI
15th Jul 20262710 AMAQI
15th Jul 20263111 AMAQI
15th Jul 20263212 PMAQI
15th Jul 2026301 PMAQI
15th Jul 2026292 PMAQI
15th Jul 2026283 PMAQI
15th Jul 2026264 PMAQI
15th Jul 2026225 PMAQI
15th Jul 2026216 PMAQI
15th Jul 2026247 PMAQI
15th Jul 2026218 PMAQI
15th Jul 2026219 PMAQI
15th Jul 20262610 PMAQI
15th Jul 20262911 PMAQI
16th Jul 20262712 AMAQI
16th Jul 2026271 AMAQI
16th Jul 2026262 AMAQI
16th Jul 2026233 AMAQI
16th Jul 2026234 AMAQI
27°C17/36°C
16th Jul 2026205 AMAQI
16th Jul 2026196 AMAQI
16th Jul 2026267 AMAQI
16th Jul 2026328 AMAQI
16th Jul 2026369 AMAQI
16th Jul 20264410 AMAQI
16th Jul 20264411 AMAQI
16th Jul 20264512 PMAQI
16th Jul 2026401 PMAQI
16th Jul 2026332 PMAQI
16th Jul 2026243 PMAQI
16th Jul 2026244 PMAQI
16th Jul 2026245 PMAQI
16th Jul 2026236 PMAQI
16th Jul 2026217 PMAQI
16th Jul 2026188 PMAQI
16th Jul 2026189 PMAQI
16th Jul 20261910 PMAQI
16th Jul 20262611 PMAQI
17th Jul 20263112 AMAQI
17th Jul 2026301 AMAQI
17th Jul 2026292 AMAQI
17th Jul 2026333 AMAQI
17th Jul 2026574 AMAQI
27°C19/35°C
17th Jul 2026415 AMAQI
17th Jul 2026366 AMAQI
17th Jul 2026427 AMAQI
17th Jul 2026398 AMAQI
17th Jul 2026339 AMAQI
17th Jul 20263710 AMAQI
17th Jul 20263211 AMAQI
17th Jul 20264212 PMAQI
17th Jul 2026351 PMAQI
17th Jul 2026402 PMAQI
17th Jul 2026393 PMAQI
17th Jul 2026434 PMAQI
17th Jul 2026425 PMAQI
17th Jul 2026316 PMAQI
17th Jul 2026257 PMAQI
17th Jul 2026378 PMAQI
17th Jul 2026459 PMAQI
17th Jul 20264310 PMAQI
17th Jul 20264011 PMAQI
18th Jul 20264212 AMAQI
18th Jul 2026401 AMAQI
18th Jul 2026382 AMAQI
18th Jul 2026383 AMAQI
18th Jul 2026384 AMAQI
28°C18/36°C
18th Jul 2026385 AMAQI
18th Jul 2026386 AMAQI
18th Jul 2026367 AMAQI
18th Jul 2026388 AMAQI
18th Jul 2026389 AMAQI
18th Jul 20263810 AMAQI
18th Jul 20264511 AMAQI
18th Jul 20264912 PMAQI
18th Jul 2026381 PMAQI
18th Jul 2026512 PMAQI
18th Jul 2026543 PMAQI
18th Jul 2026514 PMAQI
18th Jul 2026505 PMAQI
18th Jul 2026506 PMAQI
18th Jul 2026497 PMAQI
18th Jul 2026478 PMAQI
18th Jul 2026459 PMAQI
18th Jul 20264710 PMAQI
18th Jul 20263411 PMAQI
19th Jul 20263812 AMAQI
19th Jul 2026381 AMAQI
19th Jul 2026382 AMAQI
19th Jul 2026323 AMAQI
19th Jul 2026374 AMAQI
28°C17/37°C
19th Jul 2026395 AMAQI
19th Jul 2026376 AMAQI
19th Jul 2026297 AMAQI
19th Jul 2026418 AMAQI
19th Jul 2026329 AMAQI
19th Jul 20263610 AMAQI
19th Jul 20264311 AMAQI
19th Jul 20263712 PMAQI
19th Jul 2026361 PMAQI
19th Jul 2026302 PMAQI
19th Jul 2026363 PMAQI
19th Jul 2026284 PMAQI
19th Jul 2026395 PMAQI
19th Jul 2026306 PMAQI
19th Jul 2026247 PMAQI
19th Jul 2026418 PMAQI
19th Jul 2026419 PMAQI
19th Jul 20263710 PMAQI
19th Jul 20264411 PMAQI
20th Jul 20265712 AMAQI
20th Jul 2026581 AMAQI
20th Jul 2026452 AMAQI
20th Jul 2026533 AMAQI
20th Jul 2026524 AMAQI
29°C18/39°C
20th Jul 2026345 AMAQI
20th Jul 2026326 AMAQI
20th Jul 2026357 AMAQI
20th Jul 2026438 AMAQI
20th Jul 2026489 AMAQI
20th Jul 20265510 AMAQI
20th Jul 20264111 AMAQI
20th Jul 20264812 PMAQI
20th Jul 2026531 PMAQI
20th Jul 2026552 PMAQI
20th Jul 2026523 PMAQI
20th Jul 2026534 PMAQI
20th Jul 2026495 PMAQI
20th Jul 2026406 PMAQI
20th Jul 2026517 PMAQI
20th Jul 2026538 PMAQI
20th Jul 20265210 PMAQI
20th Jul 20265211 PMAQI
21st Jul 20265212 AMAQI
21st Jul 2026451 AMAQI
21st Jul 2026492 AMAQI
21st Jul 2026473 AMAQI
21st Jul 2026384 AMAQI
30°C19/40°C
21st Jul 2026455 AMAQI
21st Jul 2026486 AMAQI
21st Jul 2026547 AMAQI
21st Jul 2026548 AMAQI
21st Jul 2026549 AMAQI
21st Jul 20265410 AMAQI
21st Jul 20265311 AMAQI
21st Jul 20265312 PMAQI
21st Jul 2026521 PMAQI
21st Jul 2026512 PMAQI
21st Jul 2026503 PMAQI
21st Jul 2026444 PMAQI
21st Jul 2026395 PMAQI
21st Jul 2026376 PMAQI
21st Jul 2026357 PMAQI
21st Jul 2026408 PMAQI
21st Jul 2026479 PMAQI
21st Jul 20264610 PMAQI
21st Jul 20263511 PMAQI
22nd Jul 20264112 AMAQI
22nd Jul 2026391 AMAQI
22nd Jul 2026332 AMAQI
22nd Jul 2026403 AMAQI
22nd Jul 2026364 AMAQI
29°C21/36°C
22nd Jul 2026375 AMAQI
22nd Jul 2026386 AMAQI
22nd Jul 2026387 AMAQI
22nd Jul 2026398 AMAQI
22nd Jul 2026429 AMAQI
22nd Jul 20263710 AMAQI
22nd Jul 20263711 AMAQI
22nd Jul 20263612 PMAQI
22nd Jul 2026361 PMAQI
22nd Jul 2026322 PMAQI
22nd Jul 2026343 PMAQI
22nd Jul 2026344 PMAQI
22nd Jul 2026335 PMAQI
22nd Jul 2026326 PMAQI
22nd Jul 2026307 PMAQI
22nd Jul 2026338 PMAQI
22nd Jul 2026329 PMAQI
22nd Jul 20264110 PMAQI
22nd Jul 20264911 PMAQI
23rd Jul 20264912 AMAQI
23rd Jul 2026511 AMAQI
23rd Jul 2026332 AMAQI
23rd Jul 2026323 AMAQI
23rd Jul 2026324 AMAQI
28°C21/37°C
23rd Jul 2026365 AMAQI
23rd Jul 2026396 AMAQI
23rd Jul 2026417 AMAQI
23rd Jul 2026388 AMAQI
23rd Jul 2026389 AMAQI
23rd Jul 20263810 AMAQI
23rd Jul 20263511 AMAQI
23rd Jul 20263712 PMAQI
23rd Jul 2026401 PMAQI
23rd Jul 2026382 PMAQI
23rd Jul 2026373 PMAQI
23rd Jul 2026374 PMAQI
23rd Jul 2026315 PMAQI
23rd Jul 2026266 PMAQI
23rd Jul 2026277 PMAQI
23rd Jul 2026268 PMAQI
23rd Jul 2026359 PMAQI
23rd Jul 20264010 PMAQI
23rd Jul 20264911 PMAQI
24th Jul 20264212 AMAQI
24th Jul 2026311 AMAQI
24th Jul 2026352 AMAQI
24th Jul 2026423 AMAQI
24th Jul 2026404 AMAQI
25°C18/33°C
24th Jul 2026355 AMAQI
24th Jul 2026446 AMAQI
24th Jul 2026377 AMAQI
24th Jul 2026338 AMAQI
24th Jul 2026549 AMAQI
24th Jul 20263310 AMAQI
24th Jul 20263411 AMAQI
24th Jul 20263112 PMAQI
24th Jul 2026351 PMAQI
24th Jul 2026322 PMAQI
24th Jul 2026393 PMAQI
24th Jul 2026414 PMAQI
24th Jul 2026425 PMAQI
24th Jul 2026386 PMAQI
24th Jul 2026287 PMAQI
24th Jul 2026428 PMAQI
24th Jul 2026389 PMAQI
24th Jul 20264010 PMAQI
24th Jul 20264211 PMAQI
25th Jul 20264512 AMAQI
25th Jul 2026421 AMAQI
25th Jul 2026422 AMAQI
25th Jul 2026453 AMAQI
25th Jul 2026424 AMAQI
27°C17/38°C
25th Jul 2026475 AMAQI
25th Jul 2026456 AMAQI
25th Jul 2026467 AMAQI
25th Jul 2026388 AMAQI
25th Jul 2026479 AMAQI
25th Jul 20264110 AMAQI
25th Jul 20264711 AMAQI
25th Jul 20264512 PMAQI
25th Jul 2026361 PMAQI
25th Jul 2026522 PMAQI
25th Jul 2026413 PMAQI
25th Jul 2026494 PMAQI
25th Jul 2026495 PMAQI
25th Jul 2026456 PMAQI
25th Jul 2026227 PMAQI
25th Jul 2026368 PMAQI
25th Jul 2026469 PMAQI
25th Jul 20263210 PMAQI
25th Jul 20263911 PMAQI
26th Jul 20263712 AMAQI
26th Jul 2026331 AMAQI
26th Jul 2026412 AMAQI
26th Jul 2026323 AMAQI
26th Jul 2026364 AMAQI
31°C19/41°C
26th Jul 2026265 AMAQI
26th Jul 2026366 AMAQI
26th Jul 2026377 AMAQI
26th Jul 2026388 AMAQI
26th Jul 2026379 AMAQI
26th Jul 20263810 AMAQI
26th Jul 20263511 AMAQI
26th Jul 20263712 PMAQI
26th Jul 2026351 PMAQI
26th Jul 2026282 PMAQI
26th Jul 2026283 PMAQI
26th Jul 2026364 PMAQI
26th Jul 2026315 PMAQI
26th Jul 2026256 PMAQI
26th Jul 2026277 PMAQI
26th Jul 2026378 PMAQI
26th Jul 2026389 PMAQI
26th Jul 20264710 PMAQI
26th Jul 20264711 PMAQI
27th Jul 20264012 AMAQI
27th Jul 2026361 AMAQI
27th Jul 2026322 AMAQI
27th Jul 2026313 AMAQI
27th Jul 2026274 AMAQI
31°C21/42°C
27th Jul 2026315 AMAQI
27th Jul 2026296 AMAQI
27th Jul 2026337 AMAQI
27th Jul 2026348 AMAQI
27th Jul 2026389 AMAQI
27th Jul 20265410 AMAQI
27th Jul 20263911 AMAQI
27th Jul 20264512 PMAQI
27th Jul 2026431 PMAQI
27th Jul 2026572 PMAQI
27th Jul 2026563 PMAQI
27th Jul 2026554 PMAQI
27th Jul 2026555 PMAQI
27th Jul 2026286 PMAQI
27th Jul 2026247 PMAQI
27th Jul 2026408 PMAQI
27th Jul 2026379 PMAQI
27th Jul 20263610 PMAQI
27th Jul 20262811 PMAQI
28th Jul 20265812 AMAQI
28th Jul 2026541 AMAQI
28th Jul 2026452 AMAQI
28th Jul 2026513 AMAQI
28th Jul 2026424 AMAQI
29°C23/36°C
28th Jul 2026515 AMAQI
28th Jul 2026516 AMAQI
28th Jul 2026397 AMAQI
28th Jul 2026318 AMAQI
28th Jul 2026339 AMAQI
28th Jul 20265310 AMAQI
28th Jul 20264411 AMAQI
28th Jul 20264112 PMAQI
28th Jul 2026511 PMAQI
28th Jul 2026522 PMAQI
28th Jul 2026373 PMAQI
28th Jul 2026394 PMAQI
28th Jul 2026295 PMAQI
28th Jul 2026366 PMAQI
28th Jul 2026317 PMAQI
28th Jul 2026388 PMAQI
28th Jul 2026369 PMAQI
28th Jul 20263610 PMAQI
28th Jul 20263611 PMAQI
29th Jul 20263712 AMAQI
29th Jul 2026391 AMAQI
29th Jul 2026412 AMAQI
29th Jul 2026513 AMAQI
29th Jul 2026504 AMAQI
27°C19/38°C
29th Jul 2026615 AMAQI
29th Jul 2026616 AMAQI
29th Jul 2026567 AMAQI
29th Jul 2026578 AMAQI
29th Jul 2026569 AMAQI
29th Jul 20265510 AMAQI
29th Jul 20263811 AMAQI
29th Jul 20263412 PMAQI
29th Jul 2026321 PMAQI
29th Jul 2026342 PMAQI
29th Jul 2026353 PMAQI
29th Jul 2026374 PMAQI
29th Jul 2026255 PMAQI
29th Jul 2026356 PMAQI
29th Jul 2026497 PMAQI
29th Jul 2026368 PMAQI
29th Jul 2026279 PMAQI
29th Jul 20264510 PMAQI
29th Jul 20263811 PMAQI
30th Jul 20264312 AMAQI
30th Jul 2026381 AMAQI
30th Jul 2026422 AMAQI
30th Jul 2026413 AMAQI
30th Jul 2026364 AMAQI
26°C19/37°C
30th Jul 2026365 AMAQI
30th Jul 2026326 AMAQI
30th Jul 2026307 AMAQI
30th Jul 2026348 AMAQI
30th Jul 2026329 AMAQI
30th Jul 20263010 AMAQI
30th Jul 20263611 AMAQI
30th Jul 20266312 PMAQI
30th Jul 2026281 PMAQI
30th Jul 2026272 PMAQI
30th Jul 2026343 PMAQI
30th Jul 2026374 PMAQI
30th Jul 2026375 PMAQI
30th Jul 2026366 PMAQI
30th Jul 2026317 PMAQI
30th Jul 2026368 PMAQI
30th Jul 2026369 PMAQI
30th Jul 20263710 PMAQI
30th Jul 20263511 PMAQI
31st Jul 20263612 AMAQI
31st Jul 2026301 AMAQI
31st Jul 2026322 AMAQI
31st Jul 2026323 AMAQI
31st Jul 2026314 AMAQI
28°C18/38°C
31st Jul 2026335 AMAQI
31st Jul 2026336 AMAQI
31st Jul 2026337 AMAQI
31st Jul 2026328 AMAQI
31st Jul 2026379 AMAQI
31st Jul 20263710 AMAQI
31st Jul 20263711 AMAQI
31st Jul 20263712 PMAQI
31st Jul 2026391 PMAQI
31st Jul 2026382 PMAQI
31st Jul 2026363 PMAQI
31st Jul 2026384 PMAQI
31st Jul 2026395 PMAQI
31st Jul 2026416 PMAQI
31st Jul 2026417 PMAQI
31st Jul 2026398 PMAQI
31st Jul 2026399 PMAQI
31st Jul 20264110 PMAQI
31st Jul 20265011 PMAQI
1st Aug 20264912 AMAQI
1st Aug 2026491 AMAQI
1st Aug 2026482 AMAQI
1st Aug 2026503 AMAQI
1st Aug 2026514 AMAQI
26°C17/36°C
1st Aug 2026515 AMAQI
1st Aug 2026506 AMAQI
1st Aug 2026497 AMAQI
1st Aug 2026478 AMAQI
1st Aug 2026509 AMAQI
1st Aug 20265210 AMAQI
1st Aug 20265211 AMAQI
1st Aug 20265412 PMAQI
1st Aug 2026531 PMAQI
1st Aug 2026512 PMAQI
1st Aug 2026473 PMAQI
1st Aug 2026414 PMAQI
1st Aug 2026355 PMAQI
1st Aug 2026376 PMAQI
1st Aug 2026357 PMAQI
1st Aug 2026348 PMAQI
1st Aug 2026359 PMAQI
1st Aug 20263610 PMAQI
1st Aug 20263311 PMAQI
2nd Aug 20263612 AMAQI
2nd Aug 2026381 AMAQI
2nd Aug 2026382 AMAQI
2nd Aug 2026333 AMAQI
2nd Aug 2026364 AMAQI
27°C16/36°C
2nd Aug 2026345 AMAQI
2nd Aug 2026376 AMAQI
2nd Aug 2026377 AMAQI
2nd Aug 2026408 AMAQI
2nd Aug 2026449 AMAQI
2nd Aug 20264410 AMAQI
2nd Aug 20264511 AMAQI
2nd Aug 20264312 PMAQI
2nd Aug 2026411 PMAQI
2nd Aug 2026392 PMAQI
2nd Aug 2026323 PMAQI
2nd Aug 2026324 PMAQI
2nd Aug 2026335 PMAQI
2nd Aug 2026326 PMAQI
2nd Aug 2026327 PMAQI
2nd Aug 2026318 PMAQI
2nd Aug 2026309 PMAQI
2nd Aug 20263210 PMAQI
2nd Aug 20263311 PMAQI
3rd Aug 20263512 AMAQI
3rd Aug 2026361 AMAQI
3rd Aug 2026372 AMAQI
3rd Aug 2026513 AMAQI
3rd Aug 2026554 AMAQI
30°C18/41°C
3rd Aug 2026605 AMAQI
3rd Aug 2026556 AMAQI
3rd Aug 2026597 AMAQI
3rd Aug 2026588 AMAQI
3rd Aug 2026639 AMAQI
3rd Aug 20266110 AMAQI
3rd Aug 20266311 AMAQI
3rd Aug 20265412 PMAQI
3rd Aug 2026571 PMAQI
3rd Aug 2026582 PMAQI
3rd Aug 2026623 PMAQI
3rd Aug 2026594 PMAQI
3rd Aug 2026615 PMAQI
3rd Aug 2026626 PMAQI
3rd Aug 2026597 PMAQI
3rd Aug 2026578 PMAQI
3rd Aug 2026619 PMAQI
3rd Aug 20265610 PMAQI
3rd Aug 20265511 PMAQI
4th Aug 20265812 AMAQI
4th Aug 2026601 AMAQI
4th Aug 2026612 AMAQI
4th Aug 2026643 AMAQI
4th Aug 2026614 AMAQI
29°C17/41°C
4th Aug 2026655 AMAQI
4th Aug 2026646 AMAQI
4th Aug 2026617 AMAQI
4th Aug 2026608 AMAQI
4th Aug 2026639 AMAQI
4th Aug 20266410 AMAQI
4th Aug 20266511 AMAQI
4th Aug 20266412 PMAQI
4th Aug 2026631 PMAQI
4th Aug 2026702 PMAQI
4th Aug 2026633 PMAQI
4th Aug 2026624 PMAQI
4th Aug 2026545 PMAQI
4th Aug 2026616 PMAQI
4th Aug 2026687 PMAQI
4th Aug 2026688 PMAQI
4th Aug 2026679 PMAQI
4th Aug 20266110 PMAQI
4th Aug 20266111 PMAQI
5th Aug 20265712 AMAQI
5th Aug 2026581 AMAQI
5th Aug 2026562 AMAQI
5th Aug 2026573 AMAQI
5th Aug 2026574 AMAQI
19°C12/27°C
5th Aug 2026575 AMAQI
5th Aug 2026586 AMAQI
5th Aug 2026587 AMAQI
5th Aug 2026588 AMAQI
5th Aug 2026599 AMAQI
5th Aug 20265810 AMAQI
5th Aug 20265911 AMAQI
5th Aug 20266012 PMAQI
5th Aug 2026591 PMAQI
5th Aug 2026592 PMAQI
5th Aug 2026603 PMAQI
5th Aug 2026614 PMAQI
5th Aug 2026605 PMAQI
5th Aug 2026596 PMAQI
5th Aug 2026587 PMAQI
5th Aug 2026588 PMAQI
5th Aug 2026579 PMAQI
5th Aug 20265710 PMAQI
5th Aug 20265811 PMAQI
6th Aug 20265512 AMAQI
6th Aug 2026541 AMAQI
6th Aug 2026532 AMAQI
6th Aug 2026523 AMAQI
6th Aug 2026504 AMAQI
20°C10/30°C
6th Aug 2026515 AMAQI
5 AM6th Aug 2026516 AMAQI
6th Aug 2026527 AMAQI
6th Aug 2026528 AMAQI
6th Aug 2026539 AMAQI
6th Aug 20265410 AMAQI
6th Aug 20265411 AMAQI
6th Aug 20265412 PMAQI
12 PM6th Aug 2026561 PMAQI
6th Aug 2026612 PMAQI
6th Aug 2026603 PMAQI
6th Aug 2026634 PMAQI
6th Aug 2026585 PMAQI
6th Aug 2026586 PMAQI
6th Aug 2026557 PMAQI
6th Aug 2026528 PMAQI
8 PM6th Aug 2026529 PMAQI
6th Aug 20265110 PMAQI
6th Aug 20265311 PMAQI
12 AM
4 AM
25°C13/38°C
Day time
Avg. Highest Time
9 AM - 12 PM
41AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
7 PM
33AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 AM to 12 PM (Avg. 41), while the lowest AQI was between 7 PM to 7 PM (Avg. 33).
Night time
Avg. Highest Time
12 AM
39AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
1 AM - 11 PM
36AQI
7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 12 AM (Avg. 39), while the lowest AQI was between 1 AM to 11 PM (Avg. 36).
2026 Days Vs Air Quality
Greeley, Colorado, United States
2026
99%
211
1%
3
Total number of days with different AQI categories in last 218 days in 2026 (147 days remaining)
Good
211 DaysModerate
3 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 99%
Health Risk Level:
Very Low
In 2026, 99% 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
Greeley, 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
23AQI (US)
23AQI (US)
2nd January 2026
29AQI (US)
29AQI (US)
3rd January 2026
28AQI (US)
28AQI (US)
4th January 2026
22AQI (US)
22AQI (US)
5th January 2026
31AQI (US)
31AQI (US)
6th January 2026
19AQI (US)
19AQI (US)
7th January 2026
38AQI (US)
38AQI (US)
8th January 2026
21AQI (US)
21AQI (US)
9th January 2026
20AQI (US)
20AQI (US)
10th January 2026
21AQI (US)
21AQI (US)
11th January 2026
27AQI (US)
27AQI (US)
12th January 2026
46AQI (US)
46AQI (US)
13th January 2026
32AQI (US)
32AQI (US)
14th January 2026
16AQI (US)
16AQI (US)
15th January 2026
33AQI (US)
33AQI (US)
16th January 2026
32AQI (US)
32AQI (US)
17th January 2026
15AQI (US)
15AQI (US)
18th January 2026
20AQI (US)
20AQI (US)
19th January 2026
30AQI (US)
30AQI (US)
20th January 2026
48AQI (US)
48AQI (US)
21st January 2026
20AQI (US)
20AQI (US)
22nd January 2026
32AQI (US)
32AQI (US)
23rd January 2026
27AQI (US)
27AQI (US)
24th January 2026
33AQI (US)
33AQI (US)
25th January 2026
24AQI (US)
24AQI (US)
26th January 2026
23AQI (US)
23AQI (US)
27th January 2026
20AQI (US)
20AQI (US)
28th January 2026
31AQI (US)
31AQI (US)
29th January 2026
34AQI (US)
34AQI (US)
30th January 2026
40AQI (US)
40AQI (US)
31st January 2026
26AQI (US)
26AQI (US)
1st February 2026
26AQI (US)
26AQI (US)
2nd February 2026
29AQI (US)
29AQI (US)
3rd February 2026
27AQI (US)
27AQI (US)
4th February 2026
23AQI (US)
23AQI (US)
5th February 2026
34AQI (US)
34AQI (US)
6th February 2026
32AQI (US)
32AQI (US)
7th February 2026
30AQI (US)
30AQI (US)
8th February 2026
27AQI (US)
27AQI (US)
9th February 2026
35AQI (US)
35AQI (US)
10th February 2026
27AQI (US)
27AQI (US)
11th February 2026
28AQI (US)
28AQI (US)
12th February 2026
35AQI (US)
35AQI (US)
13th February 2026
28AQI (US)
28AQI (US)
14th February 2026
29AQI (US)
29AQI (US)
15th February 2026
21AQI (US)
21AQI (US)
16th February 2026
31AQI (US)
31AQI (US)
17th February 2026
32AQI (US)
32AQI (US)
18th February 2026
27AQI (US)
27AQI (US)
19th February 2026
26AQI (US)
26AQI (US)
20th February 2026
22AQI (US)
22AQI (US)
21st February 2026
20AQI (US)
20AQI (US)
22nd February 2026
25AQI (US)
25AQI (US)
23rd February 2026
30AQI (US)
30AQI (US)
24th February 2026
28AQI (US)
28AQI (US)
25th February 2026
35AQI (US)
35AQI (US)
26th February 2026
20AQI (US)
20AQI (US)
27th February 2026
20AQI (US)
20AQI (US)
28th February 2026
18AQI (US)
18AQI (US)
1st March 2026
27AQI (US)
27AQI (US)
2nd March 2026
40AQI (US)
40AQI (US)
3rd March 2026
25AQI (US)
25AQI (US)
4th March 2026
22AQI (US)
22AQI (US)
5th March 2026
21AQI (US)
21AQI (US)
6th March 2026
32AQI (US)
32AQI (US)
7th March 2026
22AQI (US)
22AQI (US)
8th March 2026
21AQI (US)
21AQI (US)
9th March 2026
29AQI (US)
29AQI (US)
10th March 2026
22AQI (US)
22AQI (US)
11th March 2026
24AQI (US)
24AQI (US)
12th March 2026
20AQI (US)
20AQI (US)
13th March 2026
41AQI (US)
41AQI (US)
14th March 2026
23AQI (US)
23AQI (US)
15th March 2026
27AQI (US)
27AQI (US)
16th March 2026
21AQI (US)
21AQI (US)
17th March 2026
23AQI (US)
23AQI (US)
18th March 2026
24AQI (US)
24AQI (US)
19th March 2026
28AQI (US)
28AQI (US)
20th March 2026
29AQI (US)
29AQI (US)
21st March 2026
20AQI (US)
20AQI (US)
22nd March 2026
20AQI (US)
20AQI (US)
23rd March 2026
24AQI (US)
24AQI (US)
24th March 2026
21AQI (US)
21AQI (US)
25th March 2026
33AQI (US)
33AQI (US)
26th March 2026
27AQI (US)
27AQI (US)
27th March 2026
18AQI (US)
18AQI (US)
28th March 2026
30AQI (US)
30AQI (US)
29th March 2026
22AQI (US)
22AQI (US)
30th March 2026
29AQI (US)
29AQI (US)
31st March 2026
29AQI (US)
29AQI (US)
1st April 2026
36AQI (US)
36AQI (US)
2nd April 2026
23AQI (US)
23AQI (US)
3rd April 2026
25AQI (US)
25AQI (US)
4th April 2026
21AQI (US)
21AQI (US)
5th April 2026
20AQI (US)
20AQI (US)
6th April 2026
26AQI (US)
26AQI (US)
7th April 2026
27AQI (US)
27AQI (US)
8th April 2026
32AQI (US)
32AQI (US)
9th April 2026
26AQI (US)
26AQI (US)
10th April 2026
33AQI (US)
33AQI (US)
11th April 2026
26AQI (US)
26AQI (US)
12th April 2026
19AQI (US)
19AQI (US)
13th April 2026
18AQI (US)
18AQI (US)
14th April 2026
22AQI (US)
22AQI (US)
15th April 2026
24AQI (US)
24AQI (US)
16th April 2026
18AQI (US)
18AQI (US)
17th April 2026
18th April 2026
27AQI (US)
27AQI (US)
19th April 2026
16AQI (US)
16AQI (US)
20th April 2026
25AQI (US)
25AQI (US)
21st April 2026
27AQI (US)
27AQI (US)
22nd April 2026
23rd April 2026
20AQI (US)
20AQI (US)
24th April 2026
23AQI (US)
23AQI (US)
25th April 2026
18AQI (US)
18AQI (US)
26th April 2026
17AQI (US)
17AQI (US)
27th April 2026
16AQI (US)
16AQI (US)
28th April 2026
25AQI (US)
25AQI (US)
29th April 2026
16AQI (US)
16AQI (US)
30th April 2026
17AQI (US)
17AQI (US)
1st May 2026
18AQI (US)
18AQI (US)
2nd May 2026
13AQI (US)
13AQI (US)
3rd May 2026
13AQI (US)
13AQI (US)
4th May 2026
20AQI (US)
20AQI (US)
5th May 2026
31AQI (US)
31AQI (US)
6th May 2026
27AQI (US)
27AQI (US)
7th May 2026
15AQI (US)
15AQI (US)
8th May 2026
24AQI (US)
24AQI (US)
9th May 2026
10th May 2026
26AQI (US)
26AQI (US)
11th May 2026
17AQI (US)
17AQI (US)
12th May 2026
29AQI (US)
29AQI (US)
13th May 2026
38AQI (US)
38AQI (US)
14th May 2026
27AQI (US)
27AQI (US)
15th May 2026
27AQI (US)
27AQI (US)
16th May 2026
26AQI (US)
26AQI (US)
17th May 2026
26AQI (US)
26AQI (US)
18th May 2026
35AQI (US)
35AQI (US)
19th May 2026
31AQI (US)
31AQI (US)
20th May 2026
26AQI (US)
26AQI (US)
21st May 2026
21AQI (US)
21AQI (US)
22nd May 2026
27AQI (US)
27AQI (US)
23rd May 2026
31AQI (US)
31AQI (US)
24th May 2026
20AQI (US)
20AQI (US)
25th May 2026
17AQI (US)
17AQI (US)
26th May 2026
20AQI (US)
20AQI (US)
27th May 2026
16AQI (US)
16AQI (US)
28th May 2026
16AQI (US)
16AQI (US)
29th May 2026
15AQI (US)
15AQI (US)
30th May 2026
15AQI (US)
15AQI (US)
31st May 2026
16AQI (US)
16AQI (US)
1st June 2026
18AQI (US)
18AQI (US)
2nd June 2026
17AQI (US)
17AQI (US)
3rd June 2026
22AQI (US)
22AQI (US)
4th June 2026
20AQI (US)
20AQI (US)
5th June 2026
24AQI (US)
24AQI (US)
6th June 2026
25AQI (US)
25AQI (US)
7th June 2026
22AQI (US)
22AQI (US)
8th June 2026
26AQI (US)
26AQI (US)
9th June 2026
22AQI (US)
22AQI (US)
10th June 2026
22AQI (US)
22AQI (US)
11th June 2026
16AQI (US)
16AQI (US)
12th June 2026
26AQI (US)
26AQI (US)
13th June 2026
26AQI (US)
26AQI (US)
14th June 2026
19AQI (US)
19AQI (US)
15th June 2026
29AQI (US)
29AQI (US)
16th June 2026
37AQI (US)
37AQI (US)
17th June 2026
46AQI (US)
46AQI (US)
18th June 2026
34AQI (US)
34AQI (US)
19th June 2026
39AQI (US)
39AQI (US)
20th June 2026
38AQI (US)
38AQI (US)
21st June 2026
24AQI (US)
24AQI (US)
22nd June 2026
28AQI (US)
28AQI (US)
23rd June 2026
28AQI (US)
28AQI (US)
24th June 2026
24AQI (US)
24AQI (US)
25th June 2026
15AQI (US)
15AQI (US)
26th June 2026
15AQI (US)
15AQI (US)
27th June 2026
16AQI (US)
16AQI (US)
28th June 2026
32AQI (US)
32AQI (US)
29th June 2026
24AQI (US)
24AQI (US)
30th June 2026
31AQI (US)
31AQI (US)
1st July 2026
32AQI (US)
32AQI (US)
2nd July 2026
34AQI (US)
34AQI (US)
3rd July 2026
33AQI (US)
33AQI (US)
4th July 2026
28AQI (US)
28AQI (US)
5th July 2026
26AQI (US)
26AQI (US)
6th July 2026
40AQI (US)
40AQI (US)
7th July 2026
44AQI (US)
44AQI (US)
8th July 2026
33AQI (US)
33AQI (US)
9th July 2026
16AQI (US)
16AQI (US)
10th July 2026
19AQI (US)
19AQI (US)
11th July 2026
22AQI (US)
22AQI (US)
12th July 2026
20AQI (US)
20AQI (US)
13th July 2026
24AQI (US)
24AQI (US)
14th July 2026
26AQI (US)
26AQI (US)
15th July 2026
24AQI (US)
24AQI (US)
16th July 2026
28AQI (US)
28AQI (US)
17th July 2026
38AQI (US)
38AQI (US)
18th July 2026
43AQI (US)
43AQI (US)
19th July 2026
36AQI (US)
36AQI (US)
20th July 2026
48AQI (US)
48AQI (US)
21st July 2026
47AQI (US)
47AQI (US)
22nd July 2026
37AQI (US)
37AQI (US)
23rd July 2026
37AQI (US)
37AQI (US)
24th July 2026
38AQI (US)
38AQI (US)
25th July 2026
42AQI (US)
42AQI (US)
26th July 2026
35AQI (US)
35AQI (US)
27th July 2026
39AQI (US)
39AQI (US)
28th July 2026
42AQI (US)
42AQI (US)
29th July 2026
43AQI (US)
43AQI (US)
30th July 2026
36AQI (US)
36AQI (US)
31st July 2026
37AQI (US)
37AQI (US)
1st August 2026
46AQI (US)
46AQI (US)
2nd August 2026
36AQI (US)
36AQI (US)
3rd August 2026
56AQI (US)
56AQI (US)
4th August 2026
63AQI (US)
63AQI (US)
5th August 2026
58AQI (US)
58AQI (US)
6th August 2026
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
28AQI (US)
27AQI (US)
26AQI (US)
23AQI (US)
23AQI (US)
26AQI (US)
34AQI (US)
52AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202627AQI (US)
31
28
31
28
30
30
31
2
3
211
3
Highest AQI (US) recorded in
August52AQI (US)
Lowest AQI (US) recorded in
May23AQI (US)
202532AQI (US)
29
2
28
31
30
31
29
1
26
5
25
6
25
5
21
10
30
31
336
29
Highest AQI (US) recorded in
August44AQI (US)
Lowest AQI (US) recorded in
March22AQI (US)
202428AQI (US)
28
3
26
3
31
30
28
29
25
6
28
3
30
20
11
28
2
29
2
332
30
Highest AQI (US) recorded in
October42AQI (US)
Lowest AQI (US) recorded in
May14AQI (US)
202330AQI (US)
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 (US) recorded in
January43AQI (US)
Lowest AQI (US) recorded in
December21AQI (US)
202229AQI (US)
16
14
16
6
27
4
28
2
31
29
1
19
1
2
29
31
30
26
5
284
33
Highest AQI (US) recorded in
January47AQI (US)
Lowest AQI (US) recorded in
August20AQI (US)
202138AQI (US)
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 (US) recorded in
August62AQI (US)
Lowest AQI (US) recorded in
May26AQI (US)
202041AQI (US)
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 (US) recorded in
September62AQI (US)
Lowest AQI (US) recorded in
May22AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2020(Avg.)
41AQI (US)Least Polluted Year Recorded
2026(Avg.)
27AQI (US)Greeley's annual 2026 AQI (US) (27) shows an average percentage change of -16.5% (improved AQI (US)) compared to previous years: 2020 (41), 2021 (38), 2022 (29), 2023 (30), 2024 (28), 2025 (32).
