Peterborough, Ontario, 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
Peterborough, Ontario, Canada
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
17th Aug 2023
73AQILowest AQI recorded on
19th Aug 2024
16AQISame Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 39 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 1st Aug - 2nd Aug 2025
Peterborough, Ontario, Canada
AQI
Day
Night
.
5 AM1st Aug 2025
8 PM
4 AM2nd Aug 2025
Day time
Avg. Highest Time
6AM1st Aug
44AQI
Avg. Lowest Time
6PM1st Aug
29AQI
Night time
Avg. Highest Time
5AM1st Aug
49AQI
Avg. Lowest Time
4AM2nd Aug
28AQI
In the last 24 hours,
Peterborough's AQI reached its highest point of 49 at 5 AM during the Night, while the lowest point, 28, was recorded at 4 AM during the Night between 1st Aug and 2nd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Peterborough, Ontario, Canada
JulAug
03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 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
Day
Night
3rd Jul 2025485 AMAQI
3rd Jul 2025546 AMAQI
3rd Jul 2025547 AMAQI
3rd Jul 2025548 AMAQI
3rd Jul 2025549 AMAQI
3rd Jul 20255410 AMAQI
3rd Jul 20255311 AMAQI
3rd Jul 20255212 PMAQI
3rd Jul 2025501 PMAQI
3rd Jul 2025472 PMAQI
3rd Jul 2025483 PMAQI
3rd Jul 2025484 PMAQI
3rd Jul 2025475 PMAQI
3rd Jul 2025486 PMAQI
3rd Jul 2025497 PMAQI
3rd Jul 2025488 PMAQI
3rd Jul 2025499 PMAQI
3rd Jul 20255110 PMAQI
3rd Jul 20254611 PMAQI
4th Jul 20254612 AMAQI
4th Jul 2025421 AMAQI
4th Jul 2025362 AMAQI
4th Jul 2025363 AMAQI
4th Jul 2025354 AMAQI
21°C15/29°C
4th Jul 2025365 AMAQI
4th Jul 2025366 AMAQI
4th Jul 2025367 AMAQI
4th Jul 2025358 AMAQI
4th Jul 2025339 AMAQI
4th Jul 20253010 AMAQI
4th Jul 20253011 AMAQI
4th Jul 20252812 PMAQI
4th Jul 2025291 PMAQI
4th Jul 2025282 PMAQI
4th Jul 2025323 PMAQI
4th Jul 2025314 PMAQI
4th Jul 2025335 PMAQI
4th Jul 2025326 PMAQI
4th Jul 2025347 PMAQI
4th Jul 2025348 PMAQI
4th Jul 2025319 PMAQI
4th Jul 20253210 PMAQI
4th Jul 20253411 PMAQI
5th Jul 20253412 AMAQI
5th Jul 2025321 AMAQI
5th Jul 2025332 AMAQI
5th Jul 2025313 AMAQI
5th Jul 2025344 AMAQI
19°C10/26°C
5th Jul 2025305 AMAQI
5th Jul 2025346 AMAQI
5th Jul 2025317 AMAQI
5th Jul 2025318 AMAQI
5th Jul 2025319 AMAQI
5th Jul 20253210 AMAQI
5th Jul 20253311 AMAQI
5th Jul 20253312 PMAQI
5th Jul 2025361 PMAQI
5th Jul 2025372 PMAQI
5th Jul 2025383 PMAQI
5th Jul 2025394 PMAQI
5th Jul 2025385 PMAQI
5th Jul 2025366 PMAQI
5th Jul 2025377 PMAQI
5th Jul 2025368 PMAQI
5th Jul 2025359 PMAQI
5th Jul 20253710 PMAQI
5th Jul 20254011 PMAQI
6th Jul 20254112 AMAQI
6th Jul 2025441 AMAQI
6th Jul 2025452 AMAQI
6th Jul 2025483 AMAQI
6th Jul 2025504 AMAQI
23°C14/31°C
6th Jul 2025515 AMAQI
6th Jul 2025526 AMAQI
6th Jul 2025527 AMAQI
6th Jul 2025528 AMAQI
6th Jul 2025539 AMAQI
6th Jul 20255210 AMAQI
6th Jul 20255211 AMAQI
6th Jul 20255312 PMAQI
6th Jul 2025521 PMAQI
6th Jul 2025522 PMAQI
6th Jul 2025523 PMAQI
6th Jul 2025524 PMAQI
6th Jul 2025525 PMAQI
6th Jul 2025526 PMAQI
6th Jul 2025527 PMAQI
6th Jul 2025538 PMAQI
6th Jul 2025539 PMAQI
6th Jul 20255210 PMAQI
6th Jul 20255211 PMAQI
7th Jul 20255312 AMAQI
7th Jul 2025521 AMAQI
7th Jul 2025532 AMAQI
7th Jul 2025523 AMAQI
7th Jul 2025524 AMAQI
26°C19/34°C
7th Jul 2025505 AMAQI
7th Jul 2025506 AMAQI
7th Jul 2025517 AMAQI
7th Jul 2025518 AMAQI
7th Jul 2025519 AMAQI
7th Jul 20255010 AMAQI
7th Jul 20254611 AMAQI
7th Jul 20254212 PMAQI
7th Jul 2025391 PMAQI
7th Jul 2025382 PMAQI
7th Jul 2025393 PMAQI
7th Jul 2025394 PMAQI
7th Jul 2025425 PMAQI
7th Jul 2025426 PMAQI
7th Jul 2025457 PMAQI
7th Jul 2025448 PMAQI
7th Jul 2025439 PMAQI
7th Jul 20254310 PMAQI
7th Jul 20253711 PMAQI
8th Jul 20253512 AMAQI
8th Jul 2025311 AMAQI
8th Jul 2025262 AMAQI
8th Jul 2025233 AMAQI
8th Jul 2025244 AMAQI
23°C19/28°C
8th Jul 2025245 AMAQI
8th Jul 2025256 AMAQI
8th Jul 2025277 AMAQI
8th Jul 2025278 AMAQI
8th Jul 2025289 AMAQI
8th Jul 20252910 AMAQI
8th Jul 20253111 AMAQI
8th Jul 20253412 PMAQI
8th Jul 2025341 PMAQI
8th Jul 2025352 PMAQI
8th Jul 2025363 PMAQI
8th Jul 2025364 PMAQI
8th Jul 2025385 PMAQI
8th Jul 2025376 PMAQI
8th Jul 2025317 PMAQI
8th Jul 2025298 PMAQI
8th Jul 2025289 PMAQI
8th Jul 20252910 PMAQI
8th Jul 20253011 PMAQI
9th Jul 20253012 AMAQI
9th Jul 2025291 AMAQI
9th Jul 2025292 AMAQI
9th Jul 2025273 AMAQI
9th Jul 2025274 AMAQI
22°C17/27°C
9th Jul 2025255 AMAQI
9th Jul 2025266 AMAQI
9th Jul 2025267 AMAQI
9th Jul 2025248 AMAQI
9th Jul 2025279 AMAQI
9th Jul 20252610 AMAQI
9th Jul 20252711 AMAQI
9th Jul 20252812 PMAQI
9th Jul 2025271 PMAQI
9th Jul 2025302 PMAQI
9th Jul 2025313 PMAQI
9th Jul 2025334 PMAQI
9th Jul 2025335 PMAQI
9th Jul 2025336 PMAQI
9th Jul 2025337 PMAQI
9th Jul 2025338 PMAQI
9th Jul 2025329 PMAQI
9th Jul 20253110 PMAQI
9th Jul 20253211 PMAQI
10th Jul 20253112 AMAQI
10th Jul 2025321 AMAQI
10th Jul 2025352 AMAQI
10th Jul 2025353 AMAQI
10th Jul 2025354 AMAQI
21°C16/26°C
10th Jul 2025385 AMAQI
10th Jul 2025356 AMAQI
10th Jul 2025337 AMAQI
10th Jul 2025348 AMAQI
10th Jul 2025359 AMAQI
10th Jul 20253610 AMAQI
10th Jul 20253411 AMAQI
10th Jul 20253412 PMAQI
10th Jul 2025361 PMAQI
10th Jul 2025382 PMAQI
10th Jul 2025383 PMAQI
10th Jul 2025374 PMAQI
10th Jul 2025375 PMAQI
10th Jul 2025376 PMAQI
10th Jul 2025367 PMAQI
10th Jul 2025368 PMAQI
10th Jul 2025369 PMAQI
10th Jul 20253410 PMAQI
10th Jul 20253511 PMAQI
11th Jul 20253312 AMAQI
11th Jul 2025331 AMAQI
11th Jul 2025362 AMAQI
11th Jul 2025353 AMAQI
11th Jul 2025364 AMAQI
22°C16/30°C
11th Jul 2025365 AMAQI
11th Jul 2025316 AMAQI
11th Jul 2025367 AMAQI
11th Jul 2025348 AMAQI
11th Jul 2025379 AMAQI
11th Jul 20253610 AMAQI
11th Jul 20253511 AMAQI
11th Jul 20253912 PMAQI
11th Jul 2025411 PMAQI
11th Jul 2025422 PMAQI
11th Jul 2025423 PMAQI
11th Jul 2025424 PMAQI
11th Jul 2025425 PMAQI
11th Jul 2025426 PMAQI
11th Jul 2025397 PMAQI
11th Jul 2025398 PMAQI
11th Jul 2025419 PMAQI
11th Jul 20254010 PMAQI
11th Jul 20254211 PMAQI
12th Jul 20254112 AMAQI
12th Jul 2025391 AMAQI
12th Jul 2025372 AMAQI
12th Jul 2025373 AMAQI
12th Jul 2025384 AMAQI
23°C15/29°C
12th Jul 2025445 AMAQI
12th Jul 2025406 AMAQI
12th Jul 2025407 AMAQI
12th Jul 2025398 AMAQI
12th Jul 2025389 AMAQI
12th Jul 20253910 AMAQI
12th Jul 20253911 AMAQI
12th Jul 20253812 PMAQI
12th Jul 2025381 PMAQI
12th Jul 2025382 PMAQI
12th Jul 2025383 PMAQI
12th Jul 2025404 PMAQI
12th Jul 2025415 PMAQI
12th Jul 2025456 PMAQI
12th Jul 2025437 PMAQI
12th Jul 2025418 PMAQI
12th Jul 2025399 PMAQI
12th Jul 20253910 PMAQI
12th Jul 20253811 PMAQI
13th Jul 20253712 AMAQI
13th Jul 2025361 AMAQI
13th Jul 2025302 AMAQI
13th Jul 2025323 AMAQI
13th Jul 2025334 AMAQI
24°C17/32°C
13th Jul 2025335 AMAQI
13th Jul 2025316 AMAQI
13th Jul 2025317 AMAQI
13th Jul 2025338 AMAQI
13th Jul 2025409 AMAQI
13th Jul 20253210 AMAQI
13th Jul 20253311 AMAQI
13th Jul 20253312 PMAQI
13th Jul 2025321 PMAQI
13th Jul 2025302 PMAQI
13th Jul 2025323 PMAQI
13th Jul 2025324 PMAQI
13th Jul 2025335 PMAQI
13th Jul 2025346 PMAQI
13th Jul 2025337 PMAQI
13th Jul 2025368 PMAQI
13th Jul 2025359 PMAQI
13th Jul 20253710 PMAQI
13th Jul 20253711 PMAQI
14th Jul 20253512 AMAQI
14th Jul 2025381 AMAQI
14th Jul 2025402 AMAQI
14th Jul 2025393 AMAQI
14th Jul 2025364 AMAQI
25°C22/27°C
14th Jul 2025345 AMAQI
14th Jul 2025346 AMAQI
14th Jul 2025367 AMAQI
14th Jul 2025348 AMAQI
14th Jul 2025369 AMAQI
14th Jul 20253610 AMAQI
14th Jul 20253611 AMAQI
14th Jul 20253612 PMAQI
14th Jul 2025371 PMAQI
14th Jul 2025362 PMAQI
14th Jul 2025363 PMAQI
14th Jul 2025374 PMAQI
14th Jul 2025395 PMAQI
14th Jul 2025396 PMAQI
14th Jul 2025387 PMAQI
14th Jul 2025388 PMAQI
14th Jul 2025399 PMAQI
14th Jul 20253810 PMAQI
14th Jul 20253611 PMAQI
15th Jul 20253612 AMAQI
15th Jul 2025331 AMAQI
15th Jul 2025342 AMAQI
15th Jul 2025383 AMAQI
15th Jul 2025394 AMAQI
24°C15/32°C
15th Jul 2025415 AMAQI
15th Jul 2025436 AMAQI
15th Jul 2025467 AMAQI
15th Jul 2025448 AMAQI
15th Jul 2025469 AMAQI
15th Jul 20254710 AMAQI
15th Jul 20255511 AMAQI
15th Jul 20255812 PMAQI
15th Jul 2025601 PMAQI
15th Jul 2025612 PMAQI
15th Jul 2025613 PMAQI
15th Jul 2025564 PMAQI
15th Jul 2025565 PMAQI
15th Jul 2025566 PMAQI
15th Jul 2025497 PMAQI
15th Jul 2025518 PMAQI
15th Jul 2025529 PMAQI
15th Jul 20255110 PMAQI
15th Jul 20255211 PMAQI
16th Jul 20255312 AMAQI
16th Jul 2025541 AMAQI
16th Jul 2025512 AMAQI
16th Jul 2025503 AMAQI
16th Jul 2025524 AMAQI
25°C16/33°C
16th Jul 2025605 AMAQI
16th Jul 2025606 AMAQI
16th Jul 2025627 AMAQI
16th Jul 2025668 AMAQI
16th Jul 2025709 AMAQI
16th Jul 20256910 AMAQI
16th Jul 20256811 AMAQI
16th Jul 20256612 PMAQI
16th Jul 2025621 PMAQI
16th Jul 2025642 PMAQI
16th Jul 2025633 PMAQI
16th Jul 2025624 PMAQI
16th Jul 2025635 PMAQI
16th Jul 2025616 PMAQI
16th Jul 2025617 PMAQI
16th Jul 2025628 PMAQI
16th Jul 2025579 PMAQI
16th Jul 20255610 PMAQI
16th Jul 20255511 PMAQI
17th Jul 20255412 AMAQI
17th Jul 2025501 AMAQI
17th Jul 2025472 AMAQI
17th Jul 2025443 AMAQI
17th Jul 2025414 AMAQI
25°C17/34°C
17th Jul 2025455 AMAQI
17th Jul 2025356 AMAQI
17th Jul 2025297 AMAQI
17th Jul 2025338 AMAQI
17th Jul 2025369 AMAQI
17th Jul 20253610 AMAQI
17th Jul 20253611 AMAQI
17th Jul 20254012 PMAQI
17th Jul 2025451 PMAQI
17th Jul 2025442 PMAQI
17th Jul 2025343 PMAQI
17th Jul 2025344 PMAQI
17th Jul 2025365 PMAQI
17th Jul 2025366 PMAQI
17th Jul 2025367 PMAQI
17th Jul 2025388 PMAQI
17th Jul 2025379 PMAQI
17th Jul 20253510 PMAQI
17th Jul 20253211 PMAQI
18th Jul 20253112 AMAQI
18th Jul 2025261 AMAQI
18th Jul 2025202 AMAQI
18th Jul 2025213 AMAQI
18th Jul 2025214 AMAQI
22°C16/28°C
18th Jul 2025225 AMAQI
18th Jul 2025206 AMAQI
18th Jul 2025217 AMAQI
18th Jul 2025208 AMAQI
18th Jul 2025199 AMAQI
18th Jul 20252010 AMAQI
18th Jul 20253311 AMAQI
18th Jul 20251912 PMAQI
18th Jul 2025191 PMAQI
18th Jul 2025192 PMAQI
18th Jul 2025203 PMAQI
18th Jul 2025204 PMAQI
18th Jul 2025205 PMAQI
18th Jul 2025216 PMAQI
18th Jul 2025217 PMAQI
18th Jul 2025218 PMAQI
18th Jul 2025209 PMAQI
18th Jul 20252110 PMAQI
18th Jul 20252211 PMAQI
19th Jul 20252212 AMAQI
19th Jul 2025231 AMAQI
19th Jul 2025242 AMAQI
19th Jul 2025233 AMAQI
19th Jul 2025224 AMAQI
18°C9/24°C
19th Jul 2025235 AMAQI
19th Jul 2025226 AMAQI
19th Jul 2025237 AMAQI
19th Jul 2025248 AMAQI
19th Jul 2025229 AMAQI
19th Jul 20252310 AMAQI
19th Jul 20252311 AMAQI
19th Jul 20252212 PMAQI
19th Jul 2025221 PMAQI
19th Jul 2025232 PMAQI
19th Jul 2025253 PMAQI
19th Jul 2025264 PMAQI
19th Jul 2025255 PMAQI
19th Jul 2025256 PMAQI
19th Jul 2025247 PMAQI
19th Jul 2025248 PMAQI
19th Jul 2025249 PMAQI
19th Jul 20252410 PMAQI
19th Jul 20252511 PMAQI
20th Jul 20252512 AMAQI
20th Jul 2025241 AMAQI
20th Jul 2025222 AMAQI
20th Jul 2025213 AMAQI
20th Jul 2025244 AMAQI
19°C10/26°C
20th Jul 2025205 AMAQI
20th Jul 2025216 AMAQI
20th Jul 2025207 AMAQI
20th Jul 2025218 AMAQI
20th Jul 2025229 AMAQI
20th Jul 20252210 AMAQI
20th Jul 20252311 AMAQI
20th Jul 20252312 PMAQI
20th Jul 2025241 PMAQI
20th Jul 2025252 PMAQI
20th Jul 2025253 PMAQI
20th Jul 2025254 PMAQI
20th Jul 2025255 PMAQI
20th Jul 2025256 PMAQI
20th Jul 2025237 PMAQI
20th Jul 2025238 PMAQI
20th Jul 2025249 PMAQI
20th Jul 20252510 PMAQI
20th Jul 20252911 PMAQI
21st Jul 20252912 AMAQI
21st Jul 2025331 AMAQI
21st Jul 2025382 AMAQI
21st Jul 2025413 AMAQI
21st Jul 2025444 AMAQI
21°C17/27°C
21st Jul 2025415 AMAQI
21st Jul 2025436 AMAQI
21st Jul 2025357 AMAQI
21st Jul 2025368 AMAQI
21st Jul 2025379 AMAQI
21st Jul 20254110 AMAQI
21st Jul 20254011 AMAQI
21st Jul 20253912 PMAQI
21st Jul 2025341 PMAQI
21st Jul 2025302 PMAQI
21st Jul 2025283 PMAQI
21st Jul 2025274 PMAQI
21st Jul 2025285 PMAQI
21st Jul 2025296 PMAQI
21st Jul 2025297 PMAQI
21st Jul 2025298 PMAQI
21st Jul 2025289 PMAQI
21st Jul 20253010 PMAQI
21st Jul 20252811 PMAQI
22nd Jul 20252812 AMAQI
22nd Jul 2025241 AMAQI
22nd Jul 2025202 AMAQI
22nd Jul 2025163 AMAQI
22nd Jul 2025164 AMAQI
18°C12/25°C
22nd Jul 2025165 AMAQI
22nd Jul 2025186 AMAQI
22nd Jul 2025167 AMAQI
22nd Jul 2025168 AMAQI
22nd Jul 2025169 AMAQI
22nd Jul 20251710 AMAQI
22nd Jul 20251711 AMAQI
22nd Jul 20251712 PMAQI
22nd Jul 2025171 PMAQI
22nd Jul 2025192 PMAQI
22nd Jul 2025183 PMAQI
22nd Jul 2025184 PMAQI
22nd Jul 2025185 PMAQI
22nd Jul 2025196 PMAQI
22nd Jul 2025187 PMAQI
22nd Jul 2025198 PMAQI
22nd Jul 2025189 PMAQI
22nd Jul 20251910 PMAQI
22nd Jul 20251911 PMAQI
23rd Jul 20251912 AMAQI
23rd Jul 2025191 AMAQI
23rd Jul 2025192 AMAQI
23rd Jul 2025183 AMAQI
23rd Jul 2025184 AMAQI
18°C9/23°C
23rd Jul 2025185 AMAQI
23rd Jul 2025186 AMAQI
23rd Jul 2025187 AMAQI
23rd Jul 2025198 AMAQI
23rd Jul 2025199 AMAQI
23rd Jul 20251910 AMAQI
23rd Jul 20251911 AMAQI
23rd Jul 20251912 PMAQI
23rd Jul 2025181 PMAQI
23rd Jul 2025202 PMAQI
23rd Jul 2025193 PMAQI
23rd Jul 2025204 PMAQI
23rd Jul 2025205 PMAQI
23rd Jul 2025226 PMAQI
23rd Jul 2025207 PMAQI
23rd Jul 2025208 PMAQI
23rd Jul 2025239 PMAQI
23rd Jul 20252410 PMAQI
23rd Jul 20252411 PMAQI
24th Jul 20252512 AMAQI
24th Jul 2025251 AMAQI
24th Jul 2025242 AMAQI
24th Jul 2025233 AMAQI
24th Jul 2025244 AMAQI
20°C9/29°C
24th Jul 2025235 AMAQI
24th Jul 2025246 AMAQI
24th Jul 2025257 AMAQI
24th Jul 2025268 AMAQI
24th Jul 2025279 AMAQI
24th Jul 20253010 AMAQI
24th Jul 20253211 AMAQI
24th Jul 20253412 PMAQI
24th Jul 2025391 PMAQI
24th Jul 2025412 PMAQI
24th Jul 2025403 PMAQI
24th Jul 2025404 PMAQI
24th Jul 2025405 PMAQI
24th Jul 2025416 PMAQI
24th Jul 2025377 PMAQI
24th Jul 2025378 PMAQI
24th Jul 2025399 PMAQI
24th Jul 20253910 PMAQI
24th Jul 20254011 PMAQI
25th Jul 20253712 AMAQI
25th Jul 2025361 AMAQI
25th Jul 2025332 AMAQI
25th Jul 2025333 AMAQI
25th Jul 2025314 AMAQI
25°C16/34°C
25th Jul 2025295 AMAQI
25th Jul 2025296 AMAQI
25th Jul 2025297 AMAQI
25th Jul 2025318 AMAQI
25th Jul 2025349 AMAQI
25th Jul 20253510 AMAQI
25th Jul 20253611 AMAQI
25th Jul 20253712 PMAQI
25th Jul 2025371 PMAQI
25th Jul 2025352 PMAQI
25th Jul 2025353 PMAQI
25th Jul 2025324 PMAQI
25th Jul 2025325 PMAQI
25th Jul 2025336 PMAQI
25th Jul 2025387 PMAQI
25th Jul 2025398 PMAQI
25th Jul 2025309 PMAQI
25th Jul 20253210 PMAQI
25th Jul 20253711 PMAQI
26th Jul 20254212 AMAQI
26th Jul 2025471 AMAQI
26th Jul 2025592 AMAQI
26th Jul 2025673 AMAQI
26th Jul 2025784 AMAQI
25°C21/30°C
26th Jul 2025965 AMAQI
26th Jul 20251026 AMAQI
26th Jul 2025977 AMAQI
26th Jul 2025978 AMAQI
26th Jul 20251039 AMAQI
26th Jul 20259010 AMAQI
26th Jul 20258411 AMAQI
26th Jul 20257812 PMAQI
26th Jul 2025751 PMAQI
26th Jul 2025792 PMAQI
26th Jul 2025803 PMAQI
26th Jul 2025774 PMAQI
26th Jul 2025835 PMAQI
26th Jul 2025776 PMAQI
26th Jul 2025777 PMAQI
26th Jul 2025758 PMAQI
26th Jul 2025759 PMAQI
26th Jul 20257410 PMAQI
26th Jul 20257711 PMAQI
27th Jul 20257412 AMAQI
27th Jul 2025761 AMAQI
27th Jul 2025802 AMAQI
27th Jul 2025813 AMAQI
27th Jul 2025714 AMAQI
24°C17/29°C
27th Jul 2025675 AMAQI
27th Jul 2025676 AMAQI
27th Jul 2025697 AMAQI
27th Jul 2025708 AMAQI
27th Jul 2025629 AMAQI
27th Jul 20256110 AMAQI
27th Jul 20255911 AMAQI
27th Jul 20255612 PMAQI
27th Jul 2025521 PMAQI
27th Jul 2025512 PMAQI
27th Jul 2025583 PMAQI
27th Jul 2025594 PMAQI
27th Jul 2025605 PMAQI
27th Jul 2025596 PMAQI
27th Jul 2025687 PMAQI
27th Jul 2025668 PMAQI
27th Jul 2025579 PMAQI
27th Jul 20255710 PMAQI
27th Jul 20255811 PMAQI
28th Jul 20255412 AMAQI
28th Jul 2025441 AMAQI
28th Jul 2025402 AMAQI
28th Jul 2025423 AMAQI
28th Jul 2025424 AMAQI
26°C20/33°C
28th Jul 2025445 AMAQI
28th Jul 2025466 AMAQI
28th Jul 2025507 AMAQI
28th Jul 2025508 AMAQI
28th Jul 2025509 AMAQI
28th Jul 20255210 AMAQI
28th Jul 20255211 AMAQI
28th Jul 20255312 PMAQI
28th Jul 2025541 PMAQI
28th Jul 2025552 PMAQI
28th Jul 2025543 PMAQI
28th Jul 2025544 PMAQI
28th Jul 2025545 PMAQI
28th Jul 2025546 PMAQI
28th Jul 2025537 PMAQI
28th Jul 2025528 PMAQI
28th Jul 2025539 PMAQI
28th Jul 20255310 PMAQI
28th Jul 20255311 PMAQI
29th Jul 20255412 AMAQI
29th Jul 2025541 AMAQI
29th Jul 2025502 AMAQI
29th Jul 2025483 AMAQI
29th Jul 2025464 AMAQI
26°C18/34°C
29th Jul 2025455 AMAQI
29th Jul 2025466 AMAQI
29th Jul 2025467 AMAQI
29th Jul 2025448 AMAQI
29th Jul 2025469 AMAQI
29th Jul 20254810 AMAQI
29th Jul 20254511 AMAQI
29th Jul 20254412 PMAQI
29th Jul 2025431 PMAQI
29th Jul 2025432 PMAQI
29th Jul 2025453 PMAQI
29th Jul 2025464 PMAQI
29th Jul 2025495 PMAQI
29th Jul 2025486 PMAQI
29th Jul 2025497 PMAQI
29th Jul 2025498 PMAQI
29th Jul 2025489 PMAQI
29th Jul 20254810 PMAQI
29th Jul 20254911 PMAQI
30th Jul 20255012 AMAQI
30th Jul 2025461 AMAQI
30th Jul 2025462 AMAQI
30th Jul 2025463 AMAQI
30th Jul 2025484 AMAQI
25°C17/34°C
30th Jul 2025495 AMAQI
30th Jul 2025506 AMAQI
30th Jul 2025507 AMAQI
30th Jul 2025518 AMAQI
30th Jul 2025509 AMAQI
30th Jul 20255010 AMAQI
30th Jul 20254911 AMAQI
30th Jul 20254812 PMAQI
30th Jul 2025501 PMAQI
30th Jul 2025482 PMAQI
30th Jul 2025493 PMAQI
30th Jul 2025514 PMAQI
30th Jul 2025505 PMAQI
30th Jul 2025486 PMAQI
30th Jul 2025507 PMAQI
30th Jul 2025508 PMAQI
30th Jul 2025519 PMAQI
30th Jul 20255110 PMAQI
30th Jul 20254911 PMAQI
31st Jul 20254912 AMAQI
31st Jul 2025501 AMAQI
31st Jul 2025542 AMAQI
31st Jul 2025583 AMAQI
31st Jul 2025644 AMAQI
24°C16/32°C
31st Jul 2025675 AMAQI
31st Jul 2025706 AMAQI
31st Jul 2025697 AMAQI
31st Jul 2025838 AMAQI
31st Jul 20251039 AMAQI
31st Jul 20259310 AMAQI
31st Jul 20257811 AMAQI
31st Jul 20258512 PMAQI
31st Jul 2025831 PMAQI
31st Jul 2025832 PMAQI
31st Jul 2025813 PMAQI
31st Jul 2025794 PMAQI
31st Jul 2025785 PMAQI
31st Jul 2025766 PMAQI
31st Jul 2025747 PMAQI
31st Jul 2025718 PMAQI
31st Jul 2025929 PMAQI
31st Jul 20257810 PMAQI
31st Jul 20256211 PMAQI
1st Aug 20256012 AMAQI
1st Aug 2025581 AMAQI
1st Aug 2025602 AMAQI
1st Aug 2025603 AMAQI
1st Aug 2025534 AMAQI
20°C16/26°C
1st Aug 2025495 AMAQI
1st Aug 2025446 AMAQI
1st Aug 2025437 AMAQI
1st Aug 2025448 AMAQI
1st Aug 2025429 AMAQI
1st Aug 20254410 AMAQI
1st Aug 20254211 AMAQI
1st Aug 20254112 PMAQI
1st Aug 2025401 PMAQI
1st Aug 2025362 PMAQI
1st Aug 2025383 PMAQI
1st Aug 2025344 PMAQI
1st Aug 2025305 PMAQI
1st Aug 2025296 PMAQI
1st Aug 2025397 PMAQI
1st Aug 2025338 PMAQI
1st Aug 2025299 PMAQI
1st Aug 20253010 PMAQI
1st Aug 20252811 PMAQI
2nd Aug 20253012 AMAQI
2nd Aug 2025301 AMAQI
2nd Aug 2025282 AMAQI
2nd Aug 2025313 AMAQI
2nd Aug 2025284 AMAQI
19°C11/26°C
2nd Aug 2025285 AMAQI
5 AM2nd Aug 2025266 AMAQI
2nd Aug 2025297 AMAQI
2nd Aug 2025258 AMAQI
2nd Aug 2025279 AMAQI
2nd Aug 20252510 AMAQI
2nd Aug 20252611 AMAQI
2nd Aug 20253112 PMAQI
12 PM2nd Aug 2025351 PMAQI
2nd Aug 2025412 PMAQI
2nd Aug 2025463 PMAQI
2nd Aug 2025534 PMAQI
2nd Aug 2025595 PMAQI
2nd Aug 2025706 PMAQI
2nd Aug 2025947 PMAQI
2nd Aug 2025948 PMAQI
8 PM12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 PM
41AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM
41AQI
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. 41), while the lowest AQI was between 5 AM to 8 PM (Avg. 41).
Night time
Avg. Highest Time
12 AM - 11 PM
39AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 4 AM
39AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 39), while the lowest AQI was between 12 AM to 4 AM (Avg. 39).
2025 Days Vs Air Quality
Peterborough, Ontario, Canada
2025
89%
189
11%
24
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Good
189 DaysModerate
24 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 89%
Health Risk Level:
Low
In 2025, 89% of 214 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Peterborough, Ontario, 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
19AQI
19AQI
2nd January 2025
20AQI
20AQI
3rd January 2025
23AQI
23AQI
4th January 2025
28AQI
28AQI
5th January 2025
27AQI
27AQI
6th January 2025
23AQI
23AQI
7th January 2025
23AQI
23AQI
8th January 2025
25AQI
25AQI
9th January 2025
27AQI
27AQI
10th January 2025
33AQI
33AQI
11th January 2025
45AQI
45AQI
12th January 2025
56AQI
56AQI
13th January 2025
34AQI
34AQI
14th January 2025
27AQI
27AQI
15th January 2025
22AQI
22AQI
16th January 2025
45AQI
45AQI
17th January 2025
36AQI
36AQI
18th January 2025
28AQI
28AQI
19th January 2025
24AQI
24AQI
20th January 2025
25AQI
25AQI
21st January 2025
28AQI
28AQI
22nd January 2025
27AQI
27AQI
23rd January 2025
38AQI
38AQI
24th January 2025
39AQI
39AQI
25th January 2025
44AQI
44AQI
26th January 2025
32AQI
32AQI
27th January 2025
27AQI
27AQI
28th January 2025
28AQI
28AQI
29th January 2025
27AQI
27AQI
30th January 2025
25AQI
25AQI
31st January 2025
42AQI
42AQI
1st February 2025
29AQI
29AQI
2nd February 2025
30AQI
30AQI
3rd February 2025
40AQI
40AQI
4th February 2025
23AQI
23AQI
5th February 2025
26AQI
26AQI
6th February 2025
30AQI
30AQI
7th February 2025
27AQI
27AQI
8th February 2025
29AQI
29AQI
9th February 2025
28AQI
28AQI
10th February 2025
28AQI
28AQI
11th February 2025
30AQI
30AQI
12th February 2025
27AQI
27AQI
13th February 2025
26AQI
26AQI
14th February 2025
28AQI
28AQI
15th February 2025
30AQI
30AQI
16th February 2025
27AQI
27AQI
17th February 2025
27AQI
27AQI
18th February 2025
26AQI
26AQI
19th February 2025
21AQI
21AQI
20th February 2025
20AQI
20AQI
21st February 2025
27AQI
27AQI
22nd February 2025
42AQI
42AQI
23rd February 2025
54AQI
54AQI
24th February 2025
55AQI
55AQI
25th February 2025
64AQI
64AQI
26th February 2025
28AQI
28AQI
27th February 2025
30AQI
30AQI
28th February 2025
27AQI
27AQI
1st March 2025
28AQI
28AQI
2nd March 2025
27AQI
27AQI
3rd March 2025
33AQI
33AQI
4th March 2025
40AQI
40AQI
5th March 2025
35AQI
35AQI
6th March 2025
23AQI
23AQI
7th March 2025
32AQI
32AQI
8th March 2025
31AQI
31AQI
9th March 2025
29AQI
29AQI
10th March 2025
29AQI
29AQI
11th March 2025
29AQI
29AQI
12th March 2025
27AQI
27AQI
13th March 2025
27AQI
27AQI
14th March 2025
46AQI
46AQI
15th March 2025
54AQI
54AQI
16th March 2025
30AQI
30AQI
17th March 2025
15AQI
15AQI
18th March 2025
22AQI
22AQI
19th March 2025
31AQI
31AQI
20th March 2025
24AQI
24AQI
21st March 2025
16AQI
16AQI
22nd March 2025
17AQI
17AQI
23rd March 2025
19AQI
19AQI
24th March 2025
20AQI
20AQI
25th March 2025
18AQI
18AQI
26th March 2025
18AQI
18AQI
27th March 2025
20AQI
20AQI
28th March 2025
18AQI
18AQI
29th March 2025
16AQI
16AQI
30th March 2025
18AQI
18AQI
31st March 2025
19AQI
19AQI
1st April 2025
17AQI
17AQI
2nd April 2025
17AQI
17AQI
3rd April 2025
21AQI
21AQI
4th April 2025
17AQI
17AQI
5th April 2025
19AQI
19AQI
6th April 2025
16AQI
16AQI
7th April 2025
18AQI
18AQI
8th April 2025
15AQI
15AQI
9th April 2025
17AQI
17AQI
10th April 2025
32AQI
32AQI
11th April 2025
25AQI
25AQI
12th April 2025
27AQI
27AQI
13th April 2025
27AQI
27AQI
14th April 2025
28AQI
28AQI
15th April 2025
21AQI
21AQI
16th April 2025
14AQI
14AQI
17th April 2025
16AQI
16AQI
18th April 2025
32AQI
32AQI
19th April 2025
41AQI
41AQI
20th April 2025
16AQI
16AQI
21st April 2025
19AQI
19AQI
22nd April 2025
15AQI
15AQI
23rd April 2025
15AQI
15AQI
24th April 2025
26AQI
26AQI
25th April 2025
26AQI
26AQI
26th April 2025
20AQI
20AQI
27th April 2025
13AQI
13AQI
28th April 2025
22AQI
22AQI
29th April 2025
28AQI
28AQI
30th April 2025
14AQI
14AQI
1st May 2025
26AQI
26AQI
2nd May 2025
21AQI
21AQI
3rd May 2025
14AQI
14AQI
4th May 2025
19AQI
19AQI
5th May 2025
17AQI
17AQI
6th May 2025
16AQI
16AQI
7th May 2025
22AQI
22AQI
8th May 2025
15AQI
15AQI
9th May 2025
20AQI
20AQI
10th May 2025
20AQI
20AQI
11th May 2025
19AQI
19AQI
12th May 2025
24AQI
24AQI
13th May 2025
32AQI
32AQI
14th May 2025
22AQI
22AQI
15th May 2025
22AQI
22AQI
16th May 2025
30AQI
30AQI
17th May 2025
31AQI
31AQI
18th May 2025
16AQI
16AQI
19th May 2025
13AQI
13AQI
20th May 2025
13AQI
13AQI
21st May 2025
16AQI
16AQI
22nd May 2025
12AQI
12AQI
23rd May 2025
11AQI
11AQI
24th May 2025
11AQI
11AQI
25th May 2025
14AQI
14AQI
26th May 2025
19AQI
19AQI
27th May 2025
25AQI
25AQI
28th May 2025
24AQI
24AQI
29th May 2025
19AQI
19AQI
30th May 2025
26AQI
26AQI
31st May 2025
23AQI
23AQI
1st June 2025
14AQI
14AQI
2nd June 2025
18AQI
18AQI
3rd June 2025
35AQI
35AQI
4th June 2025
60AQI
60AQI
5th June 2025
43AQI
43AQI
6th June 2025
60AQI
60AQI
7th June 2025
66AQI
66AQI
8th June 2025
78AQI
78AQI
9th June 2025
58AQI
58AQI
10th June 2025
48AQI
48AQI
11th June 2025
59AQI
59AQI
12th June 2025
65AQI
65AQI
13th June 2025
36AQI
36AQI
14th June 2025
31AQI
31AQI
15th June 2025
32AQI
32AQI
16th June 2025
37AQI
37AQI
17th June 2025
27AQI
27AQI
18th June 2025
29AQI
29AQI
19th June 2025
33AQI
33AQI
20th June 2025
31AQI
31AQI
21st June 2025
51AQI
51AQI
22nd June 2025
53AQI
53AQI
23rd June 2025
53AQI
53AQI
24th June 2025
53AQI
53AQI
25th June 2025
41AQI
41AQI
26th June 2025
35AQI
35AQI
27th June 2025
31AQI
31AQI
28th June 2025
28AQI
28AQI
29th June 2025
28AQI
28AQI
30th June 2025
32AQI
32AQI
1st July 2025
32AQI
32AQI
2nd July 2025
38AQI
38AQI
3rd July 2025
48AQI
48AQI
4th July 2025
30AQI
30AQI
5th July 2025
41AQI
41AQI
6th July 2025
52AQI
52AQI
7th July 2025
46AQI
46AQI
8th July 2025
33AQI
33AQI
9th July 2025
38AQI
38AQI
10th July 2025
49AQI
49AQI
11th July 2025
48AQI
48AQI
12th July 2025
48AQI
48AQI
13th July 2025
40AQI
40AQI
14th July 2025
51AQI
51AQI
15th July 2025
60AQI
60AQI
16th July 2025
68AQI
68AQI
17th July 2025
49AQI
49AQI
18th July 2025
25AQI
25AQI
19th July 2025
25AQI
25AQI
20th July 2025
24AQI
24AQI
21st July 2025
41AQI
41AQI
22nd July 2025
21AQI
21AQI
23rd July 2025
20AQI
20AQI
24th July 2025
31AQI
31AQI
25th July 2025
28AQI
28AQI
26th July 2025
53AQI
53AQI
27th July 2025
43AQI
43AQI
28th July 2025
51AQI
51AQI
29th July 2025
41AQI
41AQI
30th July 2025
57AQI
57AQI
31st July 2025
78AQI
78AQI
1st August 2025
39AQI
39AQI
31AQI
31AQI
26AQI
21AQI
20AQI
42AQI
42AQI
39AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202530AQI
30
1
25
3
30
1
30
31
19
11
23
8
1
189
24
Highest AQI recorded in
July42AQI
Lowest AQI recorded in
May20AQI
202429AQI
30
1
27
2
30
1
30
31
29
29
2
25
6
29
1
31
30
30
1
351
14
Highest AQI recorded in
August34AQI
Lowest AQI recorded in
November18AQI
202337AQI
31
26
2
31
26
4
30
1
11
13
5
1
23
7
1
23
8
28
2
29
2
27
2
26
5
311
46
6
1
Highest AQI recorded in
June71AQI
Lowest AQI recorded in
October28AQI
202233AQI
29
2
20
1
29
2
17
25
4
26
4
18
2
1
26
3
29
2
27
3
30
1
277
24
Highest AQI recorded in
May37AQI
Lowest AQI recorded in
August21AQI
202133AQI
25
5
27
1
28
3
30
28
3
24
6
24
7
24
7
27
3
30
1
28
2
29
2
324
40
Highest AQI recorded in
August40AQI
Lowest AQI recorded in
October25AQI
202030AQI
13
20
16
2
27
3
26
3
28
3
29
1
30
1
26
4
27
4
242
21
Highest AQI recorded in
May36AQI
Lowest AQI recorded in
October22AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
37AQILeast Polluted Year Recorded
2024(Avg.)
29AQIPeterborough's annual 2025 AQI (30) shows an average percentage change of -5.1% (improved AQI) compared to previous years: 2020 (30), 2021 (33), 2022 (33), 2023 (37), 2024 (29).
