Yellowknife, Northwest Territories, Canada 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
Yellowknife, Northwest Territories, Canada
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
25th Aug 2023
327AQILowest AQI recorded on
20th Aug 2021
8AQISame Day Analysis (8th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 32 of Good air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 9th Aug - 10th Aug 2025
Yellowknife, Northwest Territories, Canada
AQI
Day
Night
.
4 AM9th Aug 2025
10 PM
3 AM10th Aug 2025
Day time
Avg. Highest Time
3PM9th Aug
52AQI
Avg. Lowest Time
9AM9th Aug
26AQI
Night time
Avg. Highest Time
3AM10th Aug
32AQI
Avg. Lowest Time
11PM9th Aug
30AQI
In the last 24 hours,
Yellowknife's AQI reached its highest point of 52 at 3 PM during the Day, while the lowest point, 26, was recorded at 9 AM during the Day between 9th Aug and 10th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Yellowknife, Northwest Territories, Canada
JulAug
11th - 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 - 08th08th - 09th09th - 10th10th
Day
Night
11th Jul 2025284 AMAQI
11th Jul 2025285 AMAQI
11th Jul 2025216 AMAQI
11th Jul 2025197 AMAQI
11th Jul 2025278 AMAQI
11th Jul 2025259 AMAQI
11th Jul 20252410 AMAQI
11th Jul 20252611 AMAQI
11th Jul 20252412 PMAQI
11th Jul 2025311 PMAQI
11th Jul 2025282 PMAQI
11th Jul 2025323 PMAQI
11th Jul 2025244 PMAQI
11th Jul 2025285 PMAQI
11th Jul 2025296 PMAQI
11th Jul 2025277 PMAQI
11th Jul 2025288 PMAQI
11th Jul 2025279 PMAQI
11th Jul 20252910 PMAQI
11th Jul 20252711 PMAQI
12th Jul 20252612 AMAQI
12th Jul 2025321 AMAQI
12th Jul 2025292 AMAQI
12th Jul 2025283 AMAQI
12°C11/14°C
12th Jul 2025284 AMAQI
12th Jul 2025285 AMAQI
12th Jul 2025286 AMAQI
12th Jul 2025347 AMAQI
12th Jul 2025268 AMAQI
12th Jul 2025309 AMAQI
12th Jul 20253210 AMAQI
12th Jul 20253711 AMAQI
12th Jul 20253812 PMAQI
12th Jul 2025381 PMAQI
12th Jul 2025372 PMAQI
12th Jul 2025343 PMAQI
12th Jul 2025334 PMAQI
12th Jul 2025305 PMAQI
12th Jul 2025296 PMAQI
12th Jul 2025287 PMAQI
12th Jul 2025288 PMAQI
12th Jul 2025289 PMAQI
12th Jul 20253010 PMAQI
12th Jul 20252911 PMAQI
13th Jul 20252812 AMAQI
13th Jul 2025341 AMAQI
13th Jul 2025332 AMAQI
13th Jul 2025303 AMAQI
14°C10/19°C
13th Jul 2025294 AMAQI
13th Jul 2025365 AMAQI
13th Jul 2025206 AMAQI
13th Jul 2025487 AMAQI
13th Jul 2025238 AMAQI
13th Jul 2025269 AMAQI
13th Jul 20252310 AMAQI
13th Jul 20252211 AMAQI
13th Jul 20252612 PMAQI
13th Jul 2025241 PMAQI
13th Jul 2025312 PMAQI
13th Jul 2025313 PMAQI
13th Jul 2025294 PMAQI
13th Jul 2025335 PMAQI
13th Jul 2025346 PMAQI
13th Jul 2025287 PMAQI
13th Jul 2025288 PMAQI
13th Jul 2025449 PMAQI
13th Jul 20253410 PMAQI
13th Jul 20252811 PMAQI
14th Jul 20252812 AMAQI
14th Jul 2025361 AMAQI
14th Jul 2025452 AMAQI
14th Jul 2025343 AMAQI
10°C5/15°C
14th Jul 2025314 AMAQI
14th Jul 2025385 AMAQI
14th Jul 2025216 AMAQI
14th Jul 2025247 AMAQI
14th Jul 2025268 AMAQI
14th Jul 2025339 AMAQI
14th Jul 20253410 AMAQI
14th Jul 20253911 AMAQI
14th Jul 20252912 PMAQI
14th Jul 2025281 PMAQI
14th Jul 2025552 PMAQI
14th Jul 2025483 PMAQI
14th Jul 2025394 PMAQI
14th Jul 2025335 PMAQI
14th Jul 2025336 PMAQI
14th Jul 2025317 PMAQI
14th Jul 2025328 PMAQI
14th Jul 2025329 PMAQI
14th Jul 20253310 PMAQI
14th Jul 20253311 PMAQI
15th Jul 20253112 AMAQI
15th Jul 2025321 AMAQI
15th Jul 2025312 AMAQI
15th Jul 2025343 AMAQI
13°C7/18°C
15th Jul 2025344 AMAQI
15th Jul 2025365 AMAQI
15th Jul 2025426 AMAQI
15th Jul 2025367 AMAQI
15th Jul 2025368 AMAQI
15th Jul 2025309 AMAQI
15th Jul 20254310 AMAQI
15th Jul 20252811 AMAQI
15th Jul 20253612 PMAQI
15th Jul 2025371 PMAQI
15th Jul 2025362 PMAQI
15th Jul 2025293 PMAQI
15th Jul 2025374 PMAQI
15th Jul 2025345 PMAQI
15th Jul 2025306 PMAQI
15th Jul 2025307 PMAQI
15th Jul 2025348 PMAQI
15th Jul 2025339 PMAQI
15th Jul 20253410 PMAQI
15th Jul 20253411 PMAQI
16th Jul 20253412 AMAQI
16th Jul 2025341 AMAQI
16th Jul 2025372 AMAQI
16th Jul 2025343 AMAQI
16°C10/21°C
16th Jul 2025354 AMAQI
16th Jul 2025375 AMAQI
16th Jul 2025346 AMAQI
16th Jul 2025357 AMAQI
16th Jul 2025398 AMAQI
16th Jul 2025429 AMAQI
16th Jul 20253810 AMAQI
16th Jul 20254011 AMAQI
16th Jul 20254512 PMAQI
16th Jul 2025531 PMAQI
16th Jul 2025422 PMAQI
16th Jul 2025383 PMAQI
16th Jul 2025424 PMAQI
16th Jul 2025385 PMAQI
16th Jul 2025386 PMAQI
16th Jul 2025397 PMAQI
16th Jul 2025388 PMAQI
16th Jul 2025409 PMAQI
16th Jul 20254210 PMAQI
16th Jul 20254011 PMAQI
17th Jul 20253912 AMAQI
17th Jul 2025381 AMAQI
17th Jul 2025392 AMAQI
17th Jul 2025413 AMAQI
18°C12/23°C
17th Jul 2025404 AMAQI
17th Jul 2025465 AMAQI
17th Jul 2025656 AMAQI
17th Jul 2025617 AMAQI
17th Jul 2025618 AMAQI
17th Jul 2025469 AMAQI
17th Jul 20254810 AMAQI
17th Jul 20256811 AMAQI
17th Jul 20257012 PMAQI
17th Jul 2025671 PMAQI
17th Jul 2025712 PMAQI
17th Jul 2025793 PMAQI
17th Jul 2025544 PMAQI
17th Jul 2025545 PMAQI
17th Jul 2025526 PMAQI
17th Jul 2025557 PMAQI
17th Jul 2025558 PMAQI
17th Jul 2025449 PMAQI
17th Jul 20255110 PMAQI
17th Jul 20254811 PMAQI
18th Jul 20255212 AMAQI
18th Jul 2025521 AMAQI
18th Jul 2025522 AMAQI
18th Jul 2025483 AMAQI
19°C14/23°C
18th Jul 2025534 AMAQI
18th Jul 2025555 AMAQI
18th Jul 2025626 AMAQI
18th Jul 2025787 AMAQI
18th Jul 2025738 AMAQI
18th Jul 2025669 AMAQI
18th Jul 20256410 AMAQI
18th Jul 20256311 AMAQI
18th Jul 20255712 PMAQI
18th Jul 2025661 PMAQI
18th Jul 2025562 PMAQI
18th Jul 2025643 PMAQI
18th Jul 2025574 PMAQI
18th Jul 2025575 PMAQI
18th Jul 2025556 PMAQI
18th Jul 2025557 PMAQI
18th Jul 2025568 PMAQI
18th Jul 2025559 PMAQI
18th Jul 20255510 PMAQI
18th Jul 20255211 PMAQI
19th Jul 20255412 AMAQI
19th Jul 2025551 AMAQI
19th Jul 2025502 AMAQI
19th Jul 2025553 AMAQI
17°C12/23°C
19th Jul 2025544 AMAQI
19th Jul 2025415 AMAQI
19th Jul 2025356 AMAQI
19th Jul 2025437 AMAQI
19th Jul 2025598 AMAQI
19th Jul 2025369 AMAQI
19th Jul 20253310 AMAQI
19th Jul 20253411 AMAQI
19th Jul 20253312 PMAQI
19th Jul 2025371 PMAQI
19th Jul 2025372 PMAQI
19th Jul 2025423 PMAQI
19th Jul 2025434 PMAQI
19th Jul 2025455 PMAQI
19th Jul 2025466 PMAQI
19th Jul 2025467 PMAQI
19th Jul 2025468 PMAQI
19th Jul 2025469 PMAQI
19th Jul 20254410 PMAQI
19th Jul 20254411 PMAQI
20th Jul 20254412 AMAQI
20th Jul 2025431 AMAQI
20th Jul 2025422 AMAQI
20th Jul 2025443 AMAQI
16°C12/20°C
20th Jul 2025434 AMAQI
20th Jul 2025385 AMAQI
20th Jul 2025266 AMAQI
20th Jul 2025247 AMAQI
20th Jul 2025288 AMAQI
20th Jul 2025369 AMAQI
20th Jul 20254010 AMAQI
20th Jul 20252711 AMAQI
20th Jul 20252412 PMAQI
20th Jul 2025331 PMAQI
20th Jul 2025272 PMAQI
20th Jul 2025273 PMAQI
20th Jul 2025304 PMAQI
20th Jul 2025405 PMAQI
20th Jul 2025406 PMAQI
20th Jul 2025397 PMAQI
20th Jul 2025418 PMAQI
20th Jul 2025359 PMAQI
20th Jul 20253510 PMAQI
20th Jul 20253611 PMAQI
21st Jul 20253612 AMAQI
21st Jul 2025351 AMAQI
21st Jul 2025362 AMAQI
21st Jul 2025353 AMAQI
12°C10/14°C
21st Jul 2025284 AMAQI
21st Jul 2025255 AMAQI
21st Jul 2025156 AMAQI
21st Jul 2025167 AMAQI
21st Jul 2025188 AMAQI
21st Jul 2025279 AMAQI
21st Jul 20252910 AMAQI
21st Jul 20252611 AMAQI
21st Jul 20253212 PMAQI
21st Jul 2025281 PMAQI
21st Jul 2025242 PMAQI
21st Jul 2025213 PMAQI
21st Jul 2025274 PMAQI
21st Jul 2025315 PMAQI
21st Jul 2025296 PMAQI
21st Jul 2025297 PMAQI
21st Jul 2025308 PMAQI
21st Jul 2025289 PMAQI
21st Jul 20252710 PMAQI
21st Jul 20252611 PMAQI
22nd Jul 20252812 AMAQI
22nd Jul 2025271 AMAQI
22nd Jul 2025272 AMAQI
22nd Jul 2025263 AMAQI
10°C7/14°C
22nd Jul 2025274 AMAQI
22nd Jul 2025325 AMAQI
22nd Jul 2025326 AMAQI
22nd Jul 2025217 AMAQI
22nd Jul 2025188 AMAQI
22nd Jul 2025229 AMAQI
22nd Jul 20252810 AMAQI
22nd Jul 20252811 AMAQI
22nd Jul 20252612 PMAQI
22nd Jul 2025271 PMAQI
22nd Jul 2025302 PMAQI
22nd Jul 2025313 PMAQI
22nd Jul 2025274 PMAQI
22nd Jul 2025275 PMAQI
22nd Jul 2025276 PMAQI
22nd Jul 2025277 PMAQI
22nd Jul 2025268 PMAQI
22nd Jul 2025279 PMAQI
22nd Jul 20252810 PMAQI
22nd Jul 20252511 PMAQI
23rd Jul 20252612 AMAQI
23rd Jul 2025261 AMAQI
23rd Jul 2025262 AMAQI
23rd Jul 2025263 AMAQI
14°C8/19°C
23rd Jul 2025254 AMAQI
23rd Jul 2025225 AMAQI
23rd Jul 2025236 AMAQI
23rd Jul 2025257 AMAQI
23rd Jul 2025248 AMAQI
23rd Jul 2025229 AMAQI
23rd Jul 20252610 AMAQI
23rd Jul 20252811 AMAQI
23rd Jul 20252612 PMAQI
23rd Jul 2025431 PMAQI
23rd Jul 2025582 PMAQI
23rd Jul 2025633 PMAQI
23rd Jul 2025494 PMAQI
23rd Jul 2025335 PMAQI
23rd Jul 2025346 PMAQI
23rd Jul 2025307 PMAQI
23rd Jul 2025308 PMAQI
23rd Jul 2025259 PMAQI
23rd Jul 20252810 PMAQI
23rd Jul 20252411 PMAQI
24th Jul 20252512 AMAQI
24th Jul 2025281 AMAQI
24th Jul 2025232 AMAQI
24th Jul 2025313 AMAQI
15°C11/19°C
24th Jul 2025264 AMAQI
24th Jul 2025225 AMAQI
24th Jul 2025316 AMAQI
24th Jul 2025357 AMAQI
24th Jul 2025318 AMAQI
24th Jul 2025299 AMAQI
24th Jul 20253510 AMAQI
24th Jul 20253611 AMAQI
24th Jul 20253812 PMAQI
24th Jul 2025351 PMAQI
24th Jul 2025382 PMAQI
24th Jul 2025533 PMAQI
24th Jul 2025344 PMAQI
24th Jul 2025315 PMAQI
24th Jul 2025266 PMAQI
24th Jul 2025337 PMAQI
24th Jul 2025328 PMAQI
24th Jul 2025329 PMAQI
24th Jul 20253110 PMAQI
24th Jul 20253011 PMAQI
25th Jul 20253012 AMAQI
25th Jul 2025301 AMAQI
25th Jul 2025322 AMAQI
25th Jul 2025303 AMAQI
17°C13/21°C
25th Jul 2025294 AMAQI
25th Jul 2025275 AMAQI
25th Jul 2025226 AMAQI
25th Jul 2025197 AMAQI
25th Jul 2025228 AMAQI
25th Jul 2025229 AMAQI
25th Jul 20252110 AMAQI
25th Jul 20252211 AMAQI
25th Jul 20252112 PMAQI
25th Jul 2025231 PMAQI
25th Jul 2025282 PMAQI
25th Jul 2025223 PMAQI
25th Jul 2025264 PMAQI
25th Jul 2025235 PMAQI
25th Jul 2025226 PMAQI
25th Jul 2025237 PMAQI
25th Jul 2025248 PMAQI
25th Jul 2025249 PMAQI
25th Jul 20252410 PMAQI
25th Jul 20252311 PMAQI
26th Jul 20252412 AMAQI
26th Jul 2025231 AMAQI
26th Jul 2025252 AMAQI
26th Jul 2025263 AMAQI
16°C12/19°C
26th Jul 2025264 AMAQI
26th Jul 2025195 AMAQI
26th Jul 2025196 AMAQI
26th Jul 2025157 AMAQI
26th Jul 2025188 AMAQI
26th Jul 2025319 AMAQI
26th Jul 20253310 AMAQI
26th Jul 20252211 AMAQI
26th Jul 20252212 PMAQI
26th Jul 2025201 PMAQI
26th Jul 2025202 PMAQI
26th Jul 2025263 PMAQI
26th Jul 2025244 PMAQI
26th Jul 2025265 PMAQI
26th Jul 2025266 PMAQI
26th Jul 2025277 PMAQI
26th Jul 2025258 PMAQI
26th Jul 2025239 PMAQI
26th Jul 20252210 PMAQI
26th Jul 20252211 PMAQI
27th Jul 20252212 AMAQI
27th Jul 2025241 AMAQI
27th Jul 2025252 AMAQI
27th Jul 2025243 AMAQI
10°C9/11°C
27th Jul 2025244 AMAQI
27th Jul 2025245 AMAQI
27th Jul 2025186 AMAQI
27th Jul 2025157 AMAQI
27th Jul 2025188 AMAQI
27th Jul 2025209 AMAQI
27th Jul 20251810 AMAQI
27th Jul 20251811 AMAQI
27th Jul 20251812 PMAQI
27th Jul 2025181 PMAQI
27th Jul 2025182 PMAQI
27th Jul 2025183 PMAQI
27th Jul 2025304 PMAQI
27th Jul 2025255 PMAQI
27th Jul 2025236 PMAQI
27th Jul 2025227 PMAQI
27th Jul 2025218 PMAQI
27th Jul 2025249 PMAQI
27th Jul 20252810 PMAQI
27th Jul 20252911 PMAQI
28th Jul 20253012 AMAQI
28th Jul 2025291 AMAQI
28th Jul 2025232 AMAQI
28th Jul 2025253 AMAQI
11°C7/14°C
28th Jul 2025254 AMAQI
28th Jul 2025335 AMAQI
28th Jul 2025326 AMAQI
28th Jul 2025217 AMAQI
28th Jul 2025268 AMAQI
28th Jul 2025229 AMAQI
28th Jul 20252510 AMAQI
28th Jul 20252611 AMAQI
28th Jul 20252212 PMAQI
28th Jul 2025221 PMAQI
28th Jul 2025222 PMAQI
28th Jul 2025243 PMAQI
28th Jul 2025244 PMAQI
28th Jul 2025275 PMAQI
28th Jul 2025266 PMAQI
28th Jul 2025267 PMAQI
28th Jul 2025268 PMAQI
28th Jul 2025339 PMAQI
28th Jul 20252910 PMAQI
28th Jul 20252811 PMAQI
29th Jul 20253012 AMAQI
29th Jul 2025291 AMAQI
29th Jul 2025332 AMAQI
29th Jul 2025323 AMAQI
13°C10/16°C
29th Jul 2025324 AMAQI
29th Jul 2025325 AMAQI
29th Jul 2025346 AMAQI
29th Jul 2025347 AMAQI
29th Jul 2025688 AMAQI
29th Jul 2025919 AMAQI
29th Jul 20258110 AMAQI
29th Jul 202511511 AMAQI
29th Jul 20258512 PMAQI
29th Jul 2025671 PMAQI
29th Jul 2025442 PMAQI
29th Jul 2025373 PMAQI
29th Jul 2025404 PMAQI
29th Jul 2025495 PMAQI
29th Jul 2025406 PMAQI
29th Jul 2025367 PMAQI
29th Jul 2025348 PMAQI
29th Jul 2025479 PMAQI
29th Jul 20255010 PMAQI
29th Jul 20255111 PMAQI
30th Jul 20253512 AMAQI
30th Jul 2025471 AMAQI
30th Jul 2025412 AMAQI
30th Jul 2025523 AMAQI
14°C8/19°C
30th Jul 2025554 AMAQI
30th Jul 2025415 AMAQI
30th Jul 2025366 AMAQI
30th Jul 2025457 AMAQI
30th Jul 2025398 AMAQI
30th Jul 2025419 AMAQI
30th Jul 20254110 AMAQI
30th Jul 20254011 AMAQI
30th Jul 20253912 PMAQI
30th Jul 2025381 PMAQI
30th Jul 2025322 PMAQI
30th Jul 2025423 PMAQI
30th Jul 2025434 PMAQI
30th Jul 2025425 PMAQI
30th Jul 2025426 PMAQI
30th Jul 2025427 PMAQI
30th Jul 2025428 PMAQI
30th Jul 2025429 PMAQI
30th Jul 20254210 PMAQI
30th Jul 20254111 PMAQI
31st Jul 20254212 AMAQI
31st Jul 2025421 AMAQI
31st Jul 2025422 AMAQI
31st Jul 2025423 AMAQI
18°C12/25°C
31st Jul 2025434 AMAQI
31st Jul 2025385 AMAQI
31st Jul 2025446 AMAQI
31st Jul 2025387 AMAQI
31st Jul 2025428 AMAQI
31st Jul 2025289 AMAQI
31st Jul 20253210 AMAQI
31st Jul 20253711 AMAQI
31st Jul 20253812 PMAQI
31st Jul 2025341 PMAQI
31st Jul 2025472 PMAQI
31st Jul 2025513 PMAQI
31st Jul 2025484 PMAQI
31st Jul 2025555 PMAQI
31st Jul 2025566 PMAQI
31st Jul 2025577 PMAQI
31st Jul 2025588 PMAQI
31st Jul 2025399 PMAQI
31st Jul 20254410 PMAQI
31st Jul 20255811 PMAQI
1st Aug 20254612 AMAQI
1st Aug 2025421 AMAQI
1st Aug 2025372 AMAQI
1st Aug 2025323 AMAQI
22°C16/28°C
1st Aug 2025374 AMAQI
1st Aug 2025405 AMAQI
1st Aug 2025416 AMAQI
1st Aug 2025247 AMAQI
1st Aug 2025408 AMAQI
1st Aug 2025479 AMAQI
1st Aug 20254710 AMAQI
1st Aug 20254411 AMAQI
1st Aug 20253812 PMAQI
1st Aug 2025461 PMAQI
1st Aug 2025452 PMAQI
1st Aug 2025543 PMAQI
1st Aug 2025524 PMAQI
1st Aug 2025555 PMAQI
1st Aug 2025506 PMAQI
1st Aug 2025427 PMAQI
1st Aug 2025508 PMAQI
1st Aug 2025419 PMAQI
1st Aug 20254510 PMAQI
1st Aug 20254711 PMAQI
2nd Aug 20255412 AMAQI
2nd Aug 2025621 AMAQI
2nd Aug 2025532 AMAQI
2nd Aug 2025563 AMAQI
22°C16/28°C
2nd Aug 2025464 AMAQI
2nd Aug 2025515 AMAQI
2nd Aug 2025506 AMAQI
2nd Aug 2025457 AMAQI
2nd Aug 2025458 AMAQI
2nd Aug 2025449 AMAQI
2nd Aug 20254210 AMAQI
2nd Aug 20253411 AMAQI
2nd Aug 20254712 PMAQI
2nd Aug 2025571 PMAQI
2nd Aug 2025602 PMAQI
2nd Aug 2025533 PMAQI
2nd Aug 2025534 PMAQI
2nd Aug 2025535 PMAQI
2nd Aug 2025556 PMAQI
2nd Aug 2025527 PMAQI
2nd Aug 2025518 PMAQI
2nd Aug 2025449 PMAQI
2nd Aug 20254610 PMAQI
2nd Aug 20254711 PMAQI
3rd Aug 20255312 AMAQI
3rd Aug 2025461 AMAQI
3rd Aug 2025452 AMAQI
3rd Aug 2025373 AMAQI
18°C13/22°C
3rd Aug 2025364 AMAQI
3rd Aug 2025345 AMAQI
3rd Aug 2025256 AMAQI
3rd Aug 2025257 AMAQI
3rd Aug 2025258 AMAQI
3rd Aug 2025289 AMAQI
3rd Aug 20253010 AMAQI
3rd Aug 20253211 AMAQI
3rd Aug 20253312 PMAQI
3rd Aug 2025331 PMAQI
3rd Aug 2025372 PMAQI
3rd Aug 2025363 PMAQI
3rd Aug 2025324 PMAQI
3rd Aug 2025325 PMAQI
3rd Aug 2025346 PMAQI
3rd Aug 2025327 PMAQI
3rd Aug 2025368 PMAQI
3rd Aug 2025379 PMAQI
3rd Aug 20255410 PMAQI
3rd Aug 20255611 PMAQI
4th Aug 20258212 AMAQI
4th Aug 2025771 AMAQI
4th Aug 2025392 AMAQI
4th Aug 2025333 AMAQI
17°C13/20°C
4th Aug 2025324 AMAQI
4th Aug 2025325 AMAQI
4th Aug 2025296 AMAQI
4th Aug 2025347 AMAQI
4th Aug 2025378 AMAQI
4th Aug 2025329 AMAQI
4th Aug 20253310 AMAQI
4th Aug 20253111 AMAQI
4th Aug 20253012 PMAQI
4th Aug 2025351 PMAQI
4th Aug 2025422 PMAQI
4th Aug 2025413 PMAQI
4th Aug 2025444 PMAQI
4th Aug 2025395 PMAQI
4th Aug 2025436 PMAQI
4th Aug 2025357 PMAQI
4th Aug 2025408 PMAQI
4th Aug 2025299 PMAQI
4th Aug 20253410 PMAQI
4th Aug 20253111 PMAQI
5th Aug 20253512 AMAQI
5th Aug 2025281 AMAQI
5th Aug 2025302 AMAQI
5th Aug 2025333 AMAQI
17°C12/21°C
5th Aug 2025414 AMAQI
5th Aug 2025455 AMAQI
5th Aug 2025406 AMAQI
5th Aug 2025367 AMAQI
5th Aug 2025368 AMAQI
5th Aug 2025379 AMAQI
5th Aug 20253910 AMAQI
5th Aug 20253811 AMAQI
5th Aug 20253512 PMAQI
5th Aug 2025401 PMAQI
5th Aug 2025432 PMAQI
5th Aug 2025443 PMAQI
5th Aug 2025364 PMAQI
5th Aug 2025425 PMAQI
5th Aug 2025336 PMAQI
5th Aug 2025277 PMAQI
5th Aug 2025268 PMAQI
5th Aug 2025349 PMAQI
5th Aug 20252810 PMAQI
5th Aug 20252711 PMAQI
6th Aug 20252612 AMAQI
6th Aug 2025261 AMAQI
6th Aug 2025262 AMAQI
6th Aug 2025273 AMAQI
14°C11/18°C
6th Aug 2025344 AMAQI
6th Aug 2025385 AMAQI
6th Aug 2025386 AMAQI
6th Aug 2025417 AMAQI
6th Aug 2025408 AMAQI
6th Aug 2025399 AMAQI
6th Aug 20253510 AMAQI
6th Aug 20253311 AMAQI
6th Aug 20253812 PMAQI
6th Aug 2025411 PMAQI
6th Aug 2025412 PMAQI
6th Aug 2025453 PMAQI
6th Aug 2025414 PMAQI
6th Aug 2025435 PMAQI
6th Aug 2025436 PMAQI
6th Aug 2025427 PMAQI
6th Aug 2025398 PMAQI
6th Aug 2025409 PMAQI
6th Aug 20253610 PMAQI
6th Aug 20253011 PMAQI
7th Aug 20252812 AMAQI
7th Aug 2025251 AMAQI
7th Aug 2025272 AMAQI
7th Aug 2025303 AMAQI
13°C8/18°C
7th Aug 2025334 AMAQI
7th Aug 2025395 AMAQI
7th Aug 2025286 AMAQI
7th Aug 2025327 AMAQI
7th Aug 2025318 AMAQI
7th Aug 2025259 AMAQI
7th Aug 20252210 AMAQI
7th Aug 20253311 AMAQI
7th Aug 20252612 PMAQI
7th Aug 2025391 PMAQI
7th Aug 2025422 PMAQI
7th Aug 2025393 PMAQI
7th Aug 2025274 PMAQI
7th Aug 2025285 PMAQI
7th Aug 2025296 PMAQI
7th Aug 2025307 PMAQI
7th Aug 2025298 PMAQI
7th Aug 2025309 PMAQI
7th Aug 20253010 PMAQI
7th Aug 20253011 PMAQI
8th Aug 20253012 AMAQI
8th Aug 2025281 AMAQI
8th Aug 2025292 AMAQI
8th Aug 2025283 AMAQI
14°C9/21°C
8th Aug 2025314 AMAQI
8th Aug 2025375 AMAQI
8th Aug 2025316 AMAQI
8th Aug 2025427 AMAQI
8th Aug 2025268 AMAQI
8th Aug 2025289 AMAQI
8th Aug 20253010 AMAQI
8th Aug 20253611 AMAQI
8th Aug 20254612 PMAQI
8th Aug 2025371 PMAQI
8th Aug 2025322 PMAQI
8th Aug 2025253 PMAQI
8th Aug 2025264 PMAQI
8th Aug 2025325 PMAQI
8th Aug 2025316 PMAQI
8th Aug 2025327 PMAQI
8th Aug 2025318 PMAQI
8th Aug 2025319 PMAQI
8th Aug 20253010 PMAQI
8th Aug 20252811 PMAQI
9th Aug 20252912 AMAQI
9th Aug 2025281 AMAQI
9th Aug 2025302 AMAQI
9th Aug 2025313 AMAQI
19°C13/24°C
9th Aug 2025304 AMAQI
9th Aug 2025355 AMAQI
9th Aug 2025346 AMAQI
9th Aug 2025457 AMAQI
9th Aug 2025438 AMAQI
9th Aug 2025269 AMAQI
9th Aug 20252810 AMAQI
9th Aug 20252811 AMAQI
9th Aug 20252912 PMAQI
9th Aug 2025301 PMAQI
9th Aug 2025342 PMAQI
9th Aug 2025523 PMAQI
9th Aug 2025474 PMAQI
9th Aug 2025335 PMAQI
9th Aug 2025326 PMAQI
9th Aug 2025337 PMAQI
9th Aug 2025338 PMAQI
9th Aug 2025319 PMAQI
9th Aug 20253010 PMAQI
9th Aug 20253011 PMAQI
10th Aug 20253112 AMAQI
10th Aug 2025311 AMAQI
10th Aug 2025312 AMAQI
10th Aug 2025323 AMAQI
15°C13/17°C
4 AM
1 PM
10 PM
1 AM
3 AM
--°C/°C
Day time
Avg. Highest Time
1 PM - 3 PM
39AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
6 AM - 12 PM
35AQI
7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 3 PM (Avg. 39), while the lowest AQI was between 6 AM to 12 PM (Avg. 35).
Night time
Avg. Highest Time
12 AM - 1 AM
36AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
2 AM - 11 PM
34AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 1 AM (Avg. 36), while the lowest AQI was between 2 AM to 11 PM (Avg. 34).
2025 Days Vs Air Quality
Yellowknife, Northwest Territories, Canada
2025
95%
210
4%
8
0.9%
2
Total number of days with different AQI categories in last 222 days in 2025 (143 days remaining)
Good
210 DaysModerate
8 DaysPoor
2 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 95%
Health Risk Level:
Very Low
In 2025, 95% of 222 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
Yellowknife, Northwest Territories, Canada
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
36AQI
36AQI
2nd January 2025
37AQI
37AQI
3rd January 2025
52AQI
52AQI
4th January 2025
56AQI
56AQI
5th January 2025
41AQI
41AQI
6th January 2025
51AQI
51AQI
7th January 2025
50AQI
50AQI
8th January 2025
46AQI
46AQI
9th January 2025
39AQI
39AQI
10th January 2025
41AQI
41AQI
11th January 2025
32AQI
32AQI
12th January 2025
45AQI
45AQI
13th January 2025
46AQI
46AQI
14th January 2025
46AQI
46AQI
15th January 2025
28AQI
28AQI
16th January 2025
35AQI
35AQI
17th January 2025
32AQI
32AQI
18th January 2025
28AQI
28AQI
19th January 2025
28AQI
28AQI
20th January 2025
25AQI
25AQI
21st January 2025
28AQI
28AQI
22nd January 2025
29AQI
29AQI
23rd January 2025
29AQI
29AQI
24th January 2025
34AQI
34AQI
25th January 2025
29AQI
29AQI
26th January 2025
37AQI
37AQI
27th January 2025
29AQI
29AQI
28th January 2025
27AQI
27AQI
29th January 2025
30AQI
30AQI
30th January 2025
35AQI
35AQI
31st January 2025
39AQI
39AQI
1st February 2025
31AQI
31AQI
2nd February 2025
30AQI
30AQI
3rd February 2025
34AQI
34AQI
4th February 2025
31AQI
31AQI
5th February 2025
30AQI
30AQI
6th February 2025
49AQI
49AQI
7th February 2025
53AQI
53AQI
8th February 2025
44AQI
44AQI
9th February 2025
31AQI
31AQI
10th February 2025
33AQI
33AQI
11th February 2025
32AQI
32AQI
12th February 2025
34AQI
34AQI
13th February 2025
28AQI
28AQI
14th February 2025
26AQI
26AQI
15th February 2025
31AQI
31AQI
16th February 2025
42AQI
42AQI
17th February 2025
48AQI
48AQI
18th February 2025
42AQI
42AQI
19th February 2025
29AQI
29AQI
20th February 2025
35AQI
35AQI
21st February 2025
29AQI
29AQI
22nd February 2025
30AQI
30AQI
23rd February 2025
26AQI
26AQI
24th February 2025
22AQI
22AQI
25th February 2025
27AQI
27AQI
26th February 2025
35AQI
35AQI
27th February 2025
27AQI
27AQI
28th February 2025
24AQI
24AQI
1st March 2025
28AQI
28AQI
2nd March 2025
28AQI
28AQI
3rd March 2025
28AQI
28AQI
4th March 2025
32AQI
32AQI
5th March 2025
27AQI
27AQI
6th March 2025
27AQI
27AQI
7th March 2025
31AQI
31AQI
8th March 2025
24AQI
24AQI
9th March 2025
24AQI
24AQI
10th March 2025
30AQI
30AQI
11th March 2025
49AQI
49AQI
12th March 2025
28AQI
28AQI
13th March 2025
30AQI
30AQI
14th March 2025
27AQI
27AQI
15th March 2025
30AQI
30AQI
16th March 2025
32AQI
32AQI
17th March 2025
39AQI
39AQI
18th March 2025
33AQI
33AQI
19th March 2025
34AQI
34AQI
20th March 2025
37AQI
37AQI
21st March 2025
33AQI
33AQI
22nd March 2025
29AQI
29AQI
23rd March 2025
32AQI
32AQI
24th March 2025
32AQI
32AQI
25th March 2025
34AQI
34AQI
26th March 2025
26AQI
26AQI
27th March 2025
28AQI
28AQI
28th March 2025
30AQI
30AQI
29th March 2025
20AQI
20AQI
30th March 2025
24AQI
24AQI
31st March 2025
24AQI
24AQI
1st April 2025
21AQI
21AQI
2nd April 2025
23AQI
23AQI
3rd April 2025
19AQI
19AQI
4th April 2025
22AQI
22AQI
5th April 2025
17AQI
17AQI
6th April 2025
15AQI
15AQI
7th April 2025
17AQI
17AQI
8th April 2025
19AQI
19AQI
9th April 2025
29AQI
29AQI
10th April 2025
50AQI
50AQI
11th April 2025
35AQI
35AQI
12th April 2025
23AQI
23AQI
13th April 2025
25AQI
25AQI
14th April 2025
22AQI
22AQI
15th April 2025
21AQI
21AQI
16th April 2025
20AQI
20AQI
17th April 2025
20AQI
20AQI
18th April 2025
22AQI
22AQI
19th April 2025
15AQI
15AQI
20th April 2025
14AQI
14AQI
21st April 2025
16AQI
16AQI
22nd April 2025
17AQI
17AQI
23rd April 2025
16AQI
16AQI
24th April 2025
17AQI
17AQI
25th April 2025
17AQI
17AQI
26th April 2025
16AQI
16AQI
27th April 2025
18AQI
18AQI
28th April 2025
18AQI
18AQI
29th April 2025
17AQI
17AQI
30th April 2025
19AQI
19AQI
1st May 2025
23AQI
23AQI
2nd May 2025
21AQI
21AQI
3rd May 2025
17AQI
17AQI
4th May 2025
22AQI
22AQI
5th May 2025
20AQI
20AQI
6th May 2025
24AQI
24AQI
7th May 2025
17AQI
17AQI
8th May 2025
17AQI
17AQI
9th May 2025
18AQI
18AQI
10th May 2025
18AQI
18AQI
11th May 2025
17AQI
17AQI
12th May 2025
22AQI
22AQI
13th May 2025
20AQI
20AQI
14th May 2025
20AQI
20AQI
15th May 2025
22AQI
22AQI
16th May 2025
26AQI
26AQI
17th May 2025
18AQI
18AQI
18th May 2025
16AQI
16AQI
19th May 2025
26AQI
26AQI
20th May 2025
22AQI
22AQI
21st May 2025
21AQI
21AQI
22nd May 2025
28AQI
28AQI
23rd May 2025
19AQI
19AQI
24th May 2025
19AQI
19AQI
25th May 2025
19AQI
19AQI
26th May 2025
22AQI
22AQI
27th May 2025
18AQI
18AQI
28th May 2025
18AQI
18AQI
29th May 2025
50AQI
50AQI
30th May 2025
48AQI
48AQI
31st May 2025
104AQI
104AQI
1st June 2025
122AQI
122AQI
2nd June 2025
27AQI
27AQI
3rd June 2025
24AQI
24AQI
4th June 2025
17AQI
17AQI
5th June 2025
57AQI
57AQI
6th June 2025
28AQI
28AQI
7th June 2025
18AQI
18AQI
8th June 2025
17AQI
17AQI
9th June 2025
46AQI
46AQI
10th June 2025
27AQI
27AQI
11th June 2025
29AQI
29AQI
12th June 2025
29AQI
29AQI
13th June 2025
24AQI
24AQI
14th June 2025
22AQI
22AQI
15th June 2025
20AQI
20AQI
16th June 2025
23AQI
23AQI
17th June 2025
22AQI
22AQI
18th June 2025
20AQI
20AQI
19th June 2025
21AQI
21AQI
20th June 2025
21AQI
21AQI
21st June 2025
28AQI
28AQI
22nd June 2025
31AQI
31AQI
23rd June 2025
39AQI
39AQI
24th June 2025
35AQI
35AQI
25th June 2025
39AQI
39AQI
26th June 2025
40AQI
40AQI
27th June 2025
36AQI
36AQI
28th June 2025
38AQI
38AQI
29th June 2025
39AQI
39AQI
30th June 2025
26AQI
26AQI
1st July 2025
21AQI
21AQI
2nd July 2025
32AQI
32AQI
3rd July 2025
22AQI
22AQI
4th July 2025
25AQI
25AQI
5th July 2025
29AQI
29AQI
6th July 2025
41AQI
41AQI
7th July 2025
56AQI
56AQI
8th July 2025
43AQI
43AQI
9th July 2025
31AQI
31AQI
10th July 2025
32AQI
32AQI
11th July 2025
27AQI
27AQI
12th July 2025
30AQI
30AQI
13th July 2025
31AQI
31AQI
14th July 2025
33AQI
33AQI
15th July 2025
34AQI
34AQI
16th July 2025
38AQI
38AQI
17th July 2025
52AQI
52AQI
18th July 2025
58AQI
58AQI
19th July 2025
44AQI
44AQI
20th July 2025
36AQI
36AQI
21st July 2025
28AQI
28AQI
22nd July 2025
27AQI
27AQI
23rd July 2025
30AQI
30AQI
24th July 2025
31AQI
31AQI
25th July 2025
25AQI
25AQI
26th July 2025
24AQI
24AQI
27th July 2025
22AQI
22AQI
28th July 2025
26AQI
26AQI
29th July 2025
47AQI
47AQI
30th July 2025
42AQI
42AQI
31st July 2025
45AQI
45AQI
1st August 2025
43AQI
43AQI
2nd August 2025
50AQI
50AQI
3rd August 2025
37AQI
37AQI
4th August 2025
39AQI
39AQI
5th August 2025
35AQI
35AQI
6th August 2025
37AQI
37AQI
7th August 2025
30AQI
30AQI
8th August 2025
32AQI
32AQI
37AQI
33AQI
30AQI
21AQI
25AQI
32AQI
34AQI
38AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202531AQI
28
3
27
1
31
30
30
1
28
1
1
28
3
8
210
8
2
Highest AQI recorded in
August38AQI
Lowest AQI recorded in
April21AQI
202428AQI
31
29
31
30
30
1
27
2
20
11
23
6
1
1
23
6
1
31
30
18
13
323
39
2
1
Highest AQI recorded in
December49AQI
Lowest AQI recorded in
October17AQI
202351AQI
31
28
22
30
23
5
2
19
8
2
1
8
11
7
2
3
5
13
4
6
2
1
9
3
5
7
6
20
6
1
14
31
240
46
21
16
11
1
Highest AQI recorded in
September124AQI
Lowest AQI recorded in
December19AQI
202222AQI
23
22
31
29
31
30
17
4
1
2
1
28
1
28
1
28
1
31
300
7
2
Highest AQI recorded in
August51AQI
Lowest AQI recorded in
May15AQI
202118AQI
23
28
31
30
31
30
25
5
27
4
30
29
30
24
338
9
Highest AQI recorded in
July26AQI
Lowest AQI recorded in
September11AQI
202016AQI
13
20
18
30
31
31
30
31
30
31
265
Highest AQI recorded in
March23AQI
Lowest AQI recorded in
September12AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
51AQILeast Polluted Year Recorded
2020(Avg.)
16AQIYellowknife's annual 2025 AQI (31) shows an average percentage change of 34.6% (worsened AQI) compared to previous years: 2020 (16), 2021 (18), 2022 (22), 2023 (51), 2024 (28).
