Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

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+

July Air Quality Analysis

Peterborough, Ontario, Canada

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
1st Jul 2023
115AQI
Lowest AQI recorded on
1st Jul 2024
17AQI

Same Day Analysis (17th July):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 54 of Moderate air quality, showing improvement over 2023 on the same day.

Day & Night AQI Trend: 17th Jul - 18th Jul 2026

Peterborough, Ontario, Canada

AQI
Day
Night
.

5 AM17th Jul 2026

9 PM

4 AM18th Jul 2026

Day time
Avg. Highest Time
9AM17th Jul

77AQI

Avg. Lowest Time
8PM17th Jul

26AQI

Night time
Avg. Highest Time
1AM18th Jul

41AQI

Avg. Lowest Time
11PM17th Jul

23AQI

In the last 24 hours,

Peterborough's AQI reached its highest point of 77 at 9 AM during the Day, while the lowest point, 23, was recorded at 11 PM during the Night between 17th Jul and 18th Jul 2026.

Day & Night AQI Trend : Jun - Jul 2026

Peterborough, Ontario, Canada

JunJul
19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th
Day
Night
19th Jun 2026225 AMAQI
19th Jun 2026386 AMAQI
19th Jun 2026207 AMAQI
19th Jun 2026218 AMAQI
19th Jun 2026209 AMAQI
19th Jun 20262410 AMAQI
19th Jun 20262611 AMAQI
19th Jun 20262612 PMAQI
19th Jun 2026261 PMAQI
19th Jun 2026262 PMAQI
19th Jun 2026243 PMAQI
19th Jun 2026254 PMAQI
19th Jun 2026275 PMAQI
19th Jun 2026266 PMAQI
19th Jun 2026267 PMAQI
19th Jun 2026288 PMAQI
19th Jun 2026259 PMAQI
19th Jun 20262410 PMAQI
19th Jun 20262411 PMAQI
20th Jun 20262412 AMAQI
20th Jun 2026261 AMAQI
20th Jun 2026262 AMAQI
20th Jun 2026233 AMAQI
20th Jun 2026244 AMAQI

17°C13/23°C

20th Jun 2026245 AMAQI
20th Jun 2026226 AMAQI
20th Jun 2026227 AMAQI
20th Jun 2026208 AMAQI
20th Jun 2026249 AMAQI
20th Jun 20262710 AMAQI
20th Jun 20262911 AMAQI
20th Jun 20263012 PMAQI
20th Jun 2026301 PMAQI
20th Jun 2026292 PMAQI
20th Jun 2026273 PMAQI
20th Jun 2026264 PMAQI
20th Jun 2026245 PMAQI
20th Jun 2026226 PMAQI
20th Jun 2026227 PMAQI
20th Jun 2026228 PMAQI
20th Jun 2026219 PMAQI
20th Jun 20262210 PMAQI
20th Jun 20262211 PMAQI
21st Jun 20262212 AMAQI
21st Jun 2026221 AMAQI
21st Jun 2026242 AMAQI
21st Jun 2026223 AMAQI
21st Jun 2026224 AMAQI

18°C13/24°C

21st Jun 2026205 AMAQI
21st Jun 2026206 AMAQI
21st Jun 2026207 AMAQI
21st Jun 2026228 AMAQI
21st Jun 2026239 AMAQI
21st Jun 20262610 AMAQI
21st Jun 20262611 AMAQI
21st Jun 20262612 PMAQI
21st Jun 2026251 PMAQI
21st Jun 2026242 PMAQI
21st Jun 2026223 PMAQI
21st Jun 2026204 PMAQI
21st Jun 2026235 PMAQI
21st Jun 2026216 PMAQI
21st Jun 2026227 PMAQI
21st Jun 2026228 PMAQI
21st Jun 2026229 PMAQI
21st Jun 20262410 PMAQI
21st Jun 20262211 PMAQI
22nd Jun 20262012 AMAQI
22nd Jun 2026221 AMAQI
22nd Jun 2026212 AMAQI
22nd Jun 2026223 AMAQI
22nd Jun 2026374 AMAQI

18°C11/26°C

22nd Jun 2026205 AMAQI
22nd Jun 2026206 AMAQI
22nd Jun 2026207 AMAQI
22nd Jun 2026228 AMAQI
22nd Jun 2026319 AMAQI
22nd Jun 20262210 AMAQI
22nd Jun 20262611 AMAQI
22nd Jun 20262812 PMAQI
22nd Jun 2026281 PMAQI
22nd Jun 2026262 PMAQI
22nd Jun 2026263 PMAQI
22nd Jun 2026284 PMAQI
22nd Jun 2026295 PMAQI
22nd Jun 2026306 PMAQI
22nd Jun 2026287 PMAQI
22nd Jun 2026288 PMAQI
22nd Jun 2026279 PMAQI
22nd Jun 20262610 PMAQI
22nd Jun 20262511 PMAQI
23rd Jun 20262712 AMAQI
23rd Jun 2026241 AMAQI
23rd Jun 2026322 AMAQI
23rd Jun 2026223 AMAQI
23rd Jun 2026224 AMAQI

17°C12/22°C

23rd Jun 2026225 AMAQI
23rd Jun 2026226 AMAQI
23rd Jun 2026217 AMAQI
23rd Jun 2026228 AMAQI
23rd Jun 2026259 AMAQI
23rd Jun 20262710 AMAQI
23rd Jun 20262911 AMAQI
23rd Jun 20262812 PMAQI
23rd Jun 2026281 PMAQI
23rd Jun 2026262 PMAQI
23rd Jun 2026263 PMAQI
23rd Jun 2026244 PMAQI
23rd Jun 2026245 PMAQI
23rd Jun 2026246 PMAQI
23rd Jun 2026257 PMAQI
23rd Jun 2026248 PMAQI
23rd Jun 2026269 PMAQI
23rd Jun 20262810 PMAQI
23rd Jun 20262511 PMAQI
24th Jun 20262512 AMAQI
24th Jun 2026231 AMAQI
24th Jun 2026242 AMAQI
24th Jun 2026243 AMAQI
24th Jun 2026224 AMAQI

18°C11/26°C

24th Jun 2026225 AMAQI
24th Jun 2026216 AMAQI
24th Jun 2026207 AMAQI
24th Jun 2026228 AMAQI
24th Jun 2026239 AMAQI
24th Jun 20262610 AMAQI
24th Jun 20262611 AMAQI
24th Jun 20262812 PMAQI
24th Jun 2026261 PMAQI
24th Jun 2026252 PMAQI
24th Jun 2026243 PMAQI
24th Jun 2026244 PMAQI
24th Jun 2026245 PMAQI
24th Jun 2026246 PMAQI
24th Jun 2026247 PMAQI
24th Jun 2026258 PMAQI
24th Jun 2026269 PMAQI
24th Jun 20262710 PMAQI
24th Jun 20262811 PMAQI
25th Jun 20262812 AMAQI
25th Jun 2026301 AMAQI
25th Jun 2026252 AMAQI
25th Jun 2026243 AMAQI
25th Jun 2026324 AMAQI

19°C11/27°C

25th Jun 2026315 AMAQI
25th Jun 2026326 AMAQI
25th Jun 2026307 AMAQI
25th Jun 2026298 AMAQI
25th Jun 2026259 AMAQI
25th Jun 20262610 AMAQI
25th Jun 20262611 AMAQI
25th Jun 20262612 PMAQI
25th Jun 2026271 PMAQI
25th Jun 2026362 PMAQI
25th Jun 2026293 PMAQI
25th Jun 2026284 PMAQI
25th Jun 2026345 PMAQI
25th Jun 2026346 PMAQI
25th Jun 2026377 PMAQI
25th Jun 2026468 PMAQI
25th Jun 2026509 PMAQI
25th Jun 20265010 PMAQI
25th Jun 20265611 PMAQI
26th Jun 20265512 AMAQI
26th Jun 2026581 AMAQI
26th Jun 2026362 AMAQI
26th Jun 2026243 AMAQI
26th Jun 2026224 AMAQI

17°C12/25°C

26th Jun 2026225 AMAQI
26th Jun 2026246 AMAQI
26th Jun 2026247 AMAQI
26th Jun 2026258 AMAQI
26th Jun 2026269 AMAQI
26th Jun 20262910 AMAQI
26th Jun 20263011 AMAQI
26th Jun 20263012 PMAQI
26th Jun 2026301 PMAQI
26th Jun 2026272 PMAQI
26th Jun 2026273 PMAQI
26th Jun 2026304 PMAQI
26th Jun 2026285 PMAQI
26th Jun 2026276 PMAQI
26th Jun 2026287 PMAQI
26th Jun 2026308 PMAQI
26th Jun 2026309 PMAQI
26th Jun 20263110 PMAQI
26th Jun 20263811 PMAQI
27th Jun 20264212 AMAQI
27th Jun 2026511 AMAQI
27th Jun 2026382 AMAQI
27th Jun 2026283 AMAQI
27th Jun 2026294 AMAQI

19°C14/26°C

27th Jun 2026285 AMAQI
27th Jun 2026306 AMAQI
27th Jun 2026287 AMAQI
27th Jun 2026288 AMAQI
27th Jun 2026299 AMAQI
27th Jun 20263210 AMAQI
27th Jun 20263211 AMAQI
27th Jun 20263412 PMAQI
27th Jun 2026321 PMAQI
27th Jun 2026352 PMAQI
27th Jun 2026303 PMAQI
27th Jun 2026284 PMAQI
27th Jun 2026305 PMAQI
27th Jun 2026286 PMAQI
27th Jun 2026287 PMAQI
27th Jun 2026298 PMAQI
27th Jun 2026289 PMAQI
27th Jun 20264010 PMAQI
27th Jun 20264711 PMAQI
28th Jun 20264712 AMAQI
28th Jun 2026501 AMAQI
28th Jun 2026542 AMAQI
28th Jun 2026583 AMAQI
28th Jun 2026524 AMAQI

20°C13/28°C

28th Jun 2026425 AMAQI
28th Jun 2026446 AMAQI
28th Jun 2026387 AMAQI
28th Jun 2026328 AMAQI
28th Jun 2026349 AMAQI
28th Jun 20263110 AMAQI
28th Jun 20263011 AMAQI
28th Jun 20263012 PMAQI
28th Jun 2026271 PMAQI
28th Jun 2026272 PMAQI
28th Jun 2026283 PMAQI
28th Jun 2026294 PMAQI
28th Jun 2026355 PMAQI
28th Jun 2026326 PMAQI
28th Jun 2026287 PMAQI
28th Jun 2026288 PMAQI
28th Jun 2026319 PMAQI
28th Jun 20263910 PMAQI
28th Jun 20264411 PMAQI
29th Jun 20264812 AMAQI
29th Jun 2026481 AMAQI
29th Jun 2026432 AMAQI
29th Jun 2026403 AMAQI
29th Jun 2026424 AMAQI

22°C14/31°C

29th Jun 2026445 AMAQI
29th Jun 2026426 AMAQI
29th Jun 2026417 AMAQI
29th Jun 2026308 AMAQI
29th Jun 2026309 AMAQI
29th Jun 20263610 AMAQI
29th Jun 20263311 AMAQI
29th Jun 20264012 PMAQI
29th Jun 2026391 PMAQI
29th Jun 2026422 PMAQI
29th Jun 2026343 PMAQI
29th Jun 2026244 PMAQI
29th Jun 2026245 PMAQI
29th Jun 2026256 PMAQI
29th Jun 2026257 PMAQI
29th Jun 2026268 PMAQI
29th Jun 2026279 PMAQI
29th Jun 20262610 PMAQI
29th Jun 20262611 PMAQI
30th Jun 20262612 AMAQI
30th Jun 2026251 AMAQI
30th Jun 2026252 AMAQI
30th Jun 2026253 AMAQI
30th Jun 2026264 AMAQI

23°C14/32°C

30th Jun 2026265 AMAQI
30th Jun 2026246 AMAQI
30th Jun 2026407 AMAQI
30th Jun 2026258 AMAQI
30th Jun 2026269 AMAQI
30th Jun 20262610 AMAQI
30th Jun 20262811 AMAQI
30th Jun 20262712 PMAQI
30th Jun 2026281 PMAQI
30th Jun 2026272 PMAQI
30th Jun 2026263 PMAQI
30th Jun 2026264 PMAQI
30th Jun 2026285 PMAQI
30th Jun 2026286 PMAQI
30th Jun 2026287 PMAQI
30th Jun 2026288 PMAQI
30th Jun 2026279 PMAQI
30th Jun 20262810 PMAQI
30th Jun 20262611 PMAQI
1st Jul 20262812 AMAQI
1st Jul 2026271 AMAQI
1st Jul 2026262 AMAQI
1st Jul 2026273 AMAQI
1st Jul 2026264 AMAQI

25°C16/33°C

1st Jul 2026255 AMAQI
1st Jul 2026266 AMAQI
1st Jul 2026277 AMAQI
1st Jul 2026288 AMAQI
1st Jul 2026289 AMAQI
1st Jul 20262810 AMAQI
1st Jul 20263011 AMAQI
1st Jul 20263012 PMAQI
1st Jul 2026301 PMAQI
1st Jul 2026282 PMAQI
1st Jul 2026283 PMAQI
1st Jul 2026284 PMAQI
1st Jul 2026265 PMAQI
1st Jul 2026266 PMAQI
1st Jul 2026667 PMAQI
1st Jul 2026328 PMAQI
1st Jul 2026289 PMAQI
1st Jul 20263110 PMAQI
1st Jul 20263211 PMAQI
2nd Jul 20263312 AMAQI
2nd Jul 2026621 AMAQI
2nd Jul 2026682 AMAQI
2nd Jul 2026743 AMAQI
2nd Jul 2026644 AMAQI

27°C21/35°C

2nd Jul 2026645 AMAQI
2nd Jul 2026626 AMAQI
2nd Jul 2026577 AMAQI
2nd Jul 2026568 AMAQI
2nd Jul 2026579 AMAQI
2nd Jul 20265810 AMAQI
2nd Jul 20266011 AMAQI
2nd Jul 20265612 PMAQI
2nd Jul 2026571 PMAQI
2nd Jul 2026622 PMAQI
2nd Jul 2026723 PMAQI
2nd Jul 2026644 PMAQI
2nd Jul 2026535 PMAQI
2nd Jul 2026366 PMAQI
2nd Jul 2026347 PMAQI
2nd Jul 2026348 PMAQI
2nd Jul 2026349 PMAQI
2nd Jul 20263410 PMAQI
2nd Jul 20263411 PMAQI
3rd Jul 20263612 AMAQI
3rd Jul 2026301 AMAQI
3rd Jul 2026302 AMAQI
3rd Jul 2026283 AMAQI
3rd Jul 2026284 AMAQI

26°C19/33°C

3rd Jul 2026285 AMAQI
3rd Jul 2026296 AMAQI
3rd Jul 2026287 AMAQI
3rd Jul 2026298 AMAQI
3rd Jul 2026299 AMAQI
3rd Jul 20263010 AMAQI
3rd Jul 20263211 AMAQI
3rd Jul 20263212 PMAQI
3rd Jul 2026301 PMAQI
3rd Jul 2026302 PMAQI
3rd Jul 2026313 PMAQI
3rd Jul 2026304 PMAQI
3rd Jul 2026285 PMAQI
3rd Jul 2026286 PMAQI
3rd Jul 2026287 PMAQI
3rd Jul 2026268 PMAQI
3rd Jul 2026269 PMAQI
3rd Jul 20262410 PMAQI
3rd Jul 20262511 PMAQI
4th Jul 20262412 AMAQI
4th Jul 2026281 AMAQI
4th Jul 2026292 AMAQI
4th Jul 2026403 AMAQI
4th Jul 2026284 AMAQI

26°C20/33°C

4th Jul 2026265 AMAQI
4th Jul 2026266 AMAQI
4th Jul 2026277 AMAQI
4th Jul 2026278 AMAQI
4th Jul 2026289 AMAQI
4th Jul 20262410 AMAQI
4th Jul 20262711 AMAQI
4th Jul 20262812 PMAQI
4th Jul 2026241 PMAQI
4th Jul 2026282 PMAQI
4th Jul 2026233 PMAQI
4th Jul 2026254 PMAQI
4th Jul 2026255 PMAQI
4th Jul 2026256 PMAQI
4th Jul 2026257 PMAQI
4th Jul 2026218 PMAQI
4th Jul 2026219 PMAQI
4th Jul 20262010 PMAQI
4th Jul 20262011 PMAQI
5th Jul 20262012 AMAQI
5th Jul 2026221 AMAQI
5th Jul 2026282 AMAQI
5th Jul 2026283 AMAQI
5th Jul 2026284 AMAQI

23°C20/28°C

5th Jul 2026275 AMAQI
5th Jul 2026286 AMAQI
5th Jul 2026247 AMAQI
5th Jul 2026288 AMAQI
5th Jul 2026259 AMAQI
5th Jul 20262810 AMAQI
5th Jul 20263011 AMAQI
5th Jul 20263012 PMAQI
5th Jul 2026291 PMAQI
5th Jul 2026282 PMAQI
5th Jul 2026253 PMAQI
5th Jul 2026284 PMAQI
5th Jul 2026265 PMAQI
5th Jul 2026276 PMAQI
5th Jul 2026277 PMAQI
5th Jul 2026228 PMAQI
5th Jul 2026489 PMAQI
5th Jul 20263810 PMAQI
5th Jul 20262011 PMAQI
6th Jul 20262012 AMAQI
6th Jul 2026241 AMAQI
6th Jul 2026272 AMAQI
6th Jul 2026283 AMAQI
6th Jul 2026224 AMAQI

22°C17/29°C

6th Jul 2026205 AMAQI
6th Jul 2026246 AMAQI
6th Jul 2026287 AMAQI
6th Jul 2026308 AMAQI
6th Jul 2026289 AMAQI
6th Jul 20263010 AMAQI
6th Jul 20263011 AMAQI
6th Jul 20263212 PMAQI
6th Jul 2026311 PMAQI
6th Jul 2026322 PMAQI
6th Jul 2026293 PMAQI
6th Jul 2026304 PMAQI
6th Jul 2026315 PMAQI
6th Jul 2026306 PMAQI
6th Jul 2026317 PMAQI
6th Jul 2026268 PMAQI
6th Jul 2026269 PMAQI
6th Jul 20262510 PMAQI
6th Jul 20262411 PMAQI
7th Jul 20262512 AMAQI
7th Jul 2026271 AMAQI
7th Jul 2026312 AMAQI
7th Jul 2026283 AMAQI
7th Jul 2026534 AMAQI

22°C14/29°C

7th Jul 2026445 AMAQI
7th Jul 2026306 AMAQI
7th Jul 2026307 AMAQI
7th Jul 2026308 AMAQI
7th Jul 2026309 AMAQI
7th Jul 20262810 AMAQI
7th Jul 20263311 AMAQI
7th Jul 20263412 PMAQI
7th Jul 2026321 PMAQI
7th Jul 2026312 PMAQI
7th Jul 2026293 PMAQI
7th Jul 2026324 PMAQI
7th Jul 2026325 PMAQI
7th Jul 2026326 PMAQI
7th Jul 2026317 PMAQI
7th Jul 2026288 PMAQI
7th Jul 2026469 PMAQI
7th Jul 20262610 PMAQI
7th Jul 20262811 PMAQI
8th Jul 20262412 AMAQI
8th Jul 2026261 AMAQI
8th Jul 2026302 AMAQI
8th Jul 2026303 AMAQI
8th Jul 2026264 AMAQI

24°C18/30°C

8th Jul 2026265 AMAQI
8th Jul 2026386 AMAQI
8th Jul 2026227 AMAQI
8th Jul 2026228 AMAQI
8th Jul 2026259 AMAQI
8th Jul 20262810 AMAQI
8th Jul 20263111 AMAQI
8th Jul 20263012 PMAQI
8th Jul 2026321 PMAQI
8th Jul 2026362 PMAQI
8th Jul 2026293 PMAQI
8th Jul 2026374 PMAQI
8th Jul 2026295 PMAQI
8th Jul 2026496 PMAQI
8th Jul 2026277 PMAQI
8th Jul 2026268 PMAQI
8th Jul 2026249 PMAQI
8th Jul 20262410 PMAQI
8th Jul 20264211 PMAQI
9th Jul 20264612 AMAQI
9th Jul 2026241 AMAQI
9th Jul 2026422 AMAQI
9th Jul 2026283 AMAQI
9th Jul 2026324 AMAQI

24°C17/31°C

9th Jul 2026405 AMAQI
9th Jul 2026376 AMAQI
9th Jul 2026287 AMAQI
9th Jul 2026368 AMAQI
9th Jul 2026289 AMAQI
9th Jul 20263210 AMAQI
9th Jul 20263011 AMAQI
9th Jul 20263212 PMAQI
9th Jul 2026311 PMAQI
9th Jul 2026302 PMAQI
9th Jul 2026283 PMAQI
9th Jul 2026314 PMAQI
9th Jul 2026315 PMAQI
9th Jul 2026316 PMAQI
9th Jul 2026307 PMAQI
9th Jul 2026308 PMAQI
9th Jul 2026319 PMAQI
9th Jul 20263510 PMAQI
9th Jul 20263611 PMAQI
10th Jul 20262712 AMAQI
10th Jul 2026241 AMAQI
10th Jul 2026262 AMAQI
10th Jul 2026283 AMAQI
10th Jul 2026324 AMAQI

23°C18/30°C

10th Jul 2026425 AMAQI
10th Jul 2026616 AMAQI
10th Jul 2026317 AMAQI
10th Jul 2026348 AMAQI
10th Jul 2026349 AMAQI
10th Jul 20263610 AMAQI
10th Jul 20263511 AMAQI
10th Jul 20263612 PMAQI
10th Jul 2026351 PMAQI
10th Jul 2026352 PMAQI
10th Jul 2026313 PMAQI
10th Jul 2026334 PMAQI
10th Jul 2026325 PMAQI
10th Jul 2026366 PMAQI
10th Jul 2026367 PMAQI
10th Jul 2026388 PMAQI
10th Jul 2026389 PMAQI
10th Jul 20263110 PMAQI
10th Jul 20263011 PMAQI
11th Jul 20262612 AMAQI
11th Jul 2026261 AMAQI
11th Jul 2026262 AMAQI
11th Jul 2026303 AMAQI
11th Jul 2026324 AMAQI

23°C16/30°C

11th Jul 2026325 AMAQI
11th Jul 2026326 AMAQI
11th Jul 2026287 AMAQI
11th Jul 2026328 AMAQI
11th Jul 2026349 AMAQI
11th Jul 20263310 AMAQI
11th Jul 20263311 AMAQI
11th Jul 20263412 PMAQI
11th Jul 2026341 PMAQI
11th Jul 2026322 PMAQI
11th Jul 2026293 PMAQI
11th Jul 2026324 PMAQI
11th Jul 2026325 PMAQI
11th Jul 2026316 PMAQI
11th Jul 2026317 PMAQI
11th Jul 2026328 PMAQI
11th Jul 2026309 PMAQI
11th Jul 20264010 PMAQI
11th Jul 20264011 PMAQI
12th Jul 20264512 AMAQI
12th Jul 2026461 AMAQI
12th Jul 2026462 AMAQI
12th Jul 2026433 AMAQI
12th Jul 2026454 AMAQI

23°C16/29°C

12th Jul 2026635 AMAQI
12th Jul 2026946 AMAQI
12th Jul 2026867 AMAQI
12th Jul 2026888 AMAQI
12th Jul 2026889 AMAQI
12th Jul 20269210 AMAQI
12th Jul 20269011 AMAQI
12th Jul 20268412 PMAQI
12th Jul 2026681 PMAQI
12th Jul 2026702 PMAQI
12th Jul 2026723 PMAQI
12th Jul 2026724 PMAQI
12th Jul 2026705 PMAQI
12th Jul 2026706 PMAQI
12th Jul 2026687 PMAQI
12th Jul 2026678 PMAQI
12th Jul 2026589 PMAQI
12th Jul 20265610 PMAQI
12th Jul 20265411 PMAQI
13th Jul 20265612 AMAQI
13th Jul 2026471 AMAQI
13th Jul 2026542 AMAQI
13th Jul 2026523 AMAQI
13th Jul 2026504 AMAQI

21°C12/30°C

13th Jul 2026495 AMAQI
13th Jul 2026486 AMAQI
13th Jul 2026507 AMAQI
13th Jul 2026548 AMAQI
13th Jul 2026539 AMAQI
13th Jul 20265210 AMAQI
13th Jul 20265211 AMAQI
13th Jul 20265612 PMAQI
13th Jul 2026521 PMAQI
13th Jul 2026522 PMAQI
13th Jul 2026443 PMAQI
13th Jul 2026444 PMAQI
13th Jul 2026485 PMAQI
13th Jul 2026516 PMAQI
13th Jul 2026507 PMAQI
13th Jul 2026488 PMAQI
13th Jul 2026419 PMAQI
13th Jul 20264010 PMAQI
13th Jul 20263611 PMAQI
14th Jul 20263212 AMAQI
14th Jul 2026271 AMAQI
14th Jul 2026232 AMAQI
14th Jul 2026243 AMAQI
14th Jul 2026304 AMAQI

23°C14/31°C

14th Jul 2026325 AMAQI
14th Jul 2026326 AMAQI
14th Jul 2026327 AMAQI
14th Jul 2026338 AMAQI
14th Jul 2026349 AMAQI
14th Jul 20263410 AMAQI
14th Jul 20263811 AMAQI
14th Jul 20263412 PMAQI
14th Jul 2026331 PMAQI
14th Jul 2026342 PMAQI
14th Jul 2026293 PMAQI
14th Jul 2026364 PMAQI
14th Jul 2026365 PMAQI
14th Jul 2026466 PMAQI
14th Jul 2026597 PMAQI
14th Jul 2026778 PMAQI
14th Jul 2026789 PMAQI
14th Jul 20266710 PMAQI
14th Jul 20267011 PMAQI
15th Jul 20266512 AMAQI
15th Jul 2026621 AMAQI
15th Jul 2026662 AMAQI
15th Jul 2026733 AMAQI
15th Jul 2026814 AMAQI

28°C19/37°C

15th Jul 2026765 AMAQI
15th Jul 2026586 AMAQI
15th Jul 2026477 AMAQI
15th Jul 2026438 AMAQI
15th Jul 2026669 AMAQI
15th Jul 20267810 AMAQI
15th Jul 20267511 AMAQI
15th Jul 20268212 PMAQI
15th Jul 2026831 PMAQI
15th Jul 2026762 PMAQI
15th Jul 2026843 PMAQI
15th Jul 2026684 PMAQI
15th Jul 2026805 PMAQI
15th Jul 2026866 PMAQI
15th Jul 2026927 PMAQI
15th Jul 2026868 PMAQI
15th Jul 2026899 PMAQI
15th Jul 20268610 PMAQI
15th Jul 20268011 PMAQI
16th Jul 20267712 AMAQI
16th Jul 2026821 AMAQI
16th Jul 2026772 AMAQI
16th Jul 2026723 AMAQI
16th Jul 2026764 AMAQI

25°C18/32°C

16th Jul 2026845 AMAQI
16th Jul 2026906 AMAQI
16th Jul 2026847 AMAQI
16th Jul 2026848 AMAQI
16th Jul 2026849 AMAQI
16th Jul 20269010 AMAQI
16th Jul 20268711 AMAQI
16th Jul 20268612 PMAQI
16th Jul 2026841 PMAQI
16th Jul 2026872 PMAQI
16th Jul 2026873 PMAQI
16th Jul 2026864 PMAQI
16th Jul 2026865 PMAQI
16th Jul 2026846 PMAQI
16th Jul 2026787 PMAQI
16th Jul 2026868 PMAQI
16th Jul 2026889 PMAQI
16th Jul 20267310 PMAQI
16th Jul 20267811 PMAQI
17th Jul 20267812 AMAQI
17th Jul 2026791 AMAQI
17th Jul 2026782 AMAQI
17th Jul 2026603 AMAQI
17th Jul 2026704 AMAQI

22°C16/31°C

17th Jul 2026685 AMAQI
17th Jul 2026666 AMAQI
17th Jul 2026687 AMAQI
17th Jul 2026728 AMAQI
17th Jul 2026779 AMAQI
17th Jul 20266210 AMAQI
17th Jul 20264811 AMAQI
17th Jul 20265412 PMAQI
17th Jul 2026481 PMAQI
17th Jul 2026442 PMAQI
17th Jul 2026443 PMAQI
17th Jul 2026464 PMAQI
17th Jul 2026425 PMAQI
17th Jul 2026426 PMAQI
17th Jul 2026327 PMAQI
17th Jul 2026268 PMAQI
17th Jul 2026279 PMAQI
17th Jul 20263810 PMAQI
17th Jul 20262311 PMAQI
18th Jul 20263412 AMAQI
18th Jul 2026411 AMAQI
18th Jul 2026362 AMAQI
18th Jul 2026403 AMAQI
18th Jul 2026404 AMAQI

21°C14/30°C

18th Jul 2026415 AMAQI
5 AM
18th Jul 2026216 AMAQI
18th Jul 2026347 AMAQI
18th Jul 2026458 AMAQI
18th Jul 2026459 AMAQI
18th Jul 20266810 AMAQI
18th Jul 20266411 AMAQI
18th Jul 20266112 PMAQI
18th Jul 2026711 PMAQI
1 PM
18th Jul 2026762 PMAQI
18th Jul 2026703 PMAQI
18th Jul 2026544 PMAQI
18th Jul 2026365 PMAQI
18th Jul 2026426 PMAQI
18th Jul 2026787 PMAQI
18th Jul 2026628 PMAQI
18th Jul 2026599 PMAQI
9 PM
18th Jul 20266410 PMAQI
18th Jul 20266011 PMAQI
1 AM
4 AM

21°C17/28°C

Day time
Avg. Highest Time
10 AM - 2 PM

39AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
7 AM - 9 AM

36AQI

3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 2 PM (Avg. 39), while the lowest AQI was between 7 AM to 9 AM (Avg. 36).
Night time
Avg. Highest Time
12 AM - 11 PM

37AQI

7 hours / Day
210 hours / Month
Avg. Lowest Time
12 AM - 11 PM

37AQI

7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 37), while the lowest AQI was between 12 AM to 11 PM (Avg. 37).

2026 Days Vs Air Quality

Peterborough, Ontario, Canada

2026

90%

175

10%

20

Total number of days with different AQI categories in last 199 days in 2026 (166 days remaining)

Good
175 Days
Moderate
20 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 90%

Health Risk Level:

Very Low

In 2026, 90% of 199 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

Peterborough, Ontario, Canada

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
8AQI (US)
2nd January 2026
8AQI (US)
3rd January 2026
9AQI (US)
4th January 2026
30AQI (US)
5th January 2026
44AQI (US)
6th January 2026
67AQI (US)
7th January 2026
53AQI (US)
8th January 2026
42AQI (US)
9th January 2026
30AQI (US)
10th January 2026
12AQI (US)
11th January 2026
14AQI (US)
12th January 2026
26AQI (US)
13th January 2026
42AQI (US)
14th January 2026
33AQI (US)
15th January 2026
11AQI (US)
16th January 2026
12AQI (US)
17th January 2026
30AQI (US)
18th January 2026
28AQI (US)
19th January 2026
32AQI (US)
20th January 2026
10AQI (US)
21st January 2026
24AQI (US)
22nd January 2026
58AQI (US)
23rd January 2026
61AQI (US)
24th January 2026
48AQI (US)
25th January 2026
51AQI (US)
26th January 2026
48AQI (US)
27th January 2026
40AQI (US)
28th January 2026
44AQI (US)
29th January 2026
50AQI (US)
30th January 2026
58AQI (US)
31st January 2026
46AQI (US)
1st February 2026
48AQI (US)
2nd February 2026
52AQI (US)
3rd February 2026
48AQI (US)
4th February 2026
44AQI (US)
5th February 2026
52AQI (US)
6th February 2026
51AQI (US)
7th February 2026
40AQI (US)
8th February 2026
44AQI (US)
9th February 2026
49AQI (US)
10th February 2026
46AQI (US)
11th February 2026
40AQI (US)
12th February 2026
40AQI (US)
13th February 2026
48AQI (US)
14th February 2026
51AQI (US)
15th February 2026
44AQI (US)
16th February 2026
48AQI (US)
17th February 2026
52AQI (US)
18th February 2026
44AQI (US)
19th February 2026
42AQI (US)
20th February 2026
40AQI (US)
21st February 2026
36AQI (US)
22nd February 2026
36AQI (US)
23rd February 2026
40AQI (US)
24th February 2026
46AQI (US)
25th February 2026
48AQI (US)
26th February 2026
37AQI (US)
27th February 2026
40AQI (US)
28th February 2026
40AQI (US)
1st March 2026
40AQI (US)
2nd March 2026
62AQI (US)
3rd March 2026
48AQI (US)
4th March 2026
48AQI (US)
5th March 2026
43AQI (US)
6th March 2026
36AQI (US)
7th March 2026
44AQI (US)
8th March 2026
44AQI (US)
9th March 2026
40AQI (US)
10th March 2026
36AQI (US)
11th March 2026
46AQI (US)
12th March 2026
42AQI (US)
13th March 2026
44AQI (US)
14th March 2026
36AQI (US)
15th March 2026
33AQI (US)
16th March 2026
38AQI (US)
17th March 2026
34AQI (US)
18th March 2026
34AQI (US)
19th March 2026
39AQI (US)
20th March 2026
46AQI (US)
21st March 2026
42AQI (US)
22nd March 2026
38AQI (US)
23rd March 2026
42AQI (US)
24th March 2026
37AQI (US)
25th March 2026
34AQI (US)
26th March 2026
38AQI (US)
27th March 2026
28AQI (US)
28th March 2026
31AQI (US)
29th March 2026
30AQI (US)
30th March 2026
28AQI (US)
31st March 2026
29AQI (US)
1st April 2026
31AQI (US)
2nd April 2026
30AQI (US)
3rd April 2026
30AQI (US)
4th April 2026
32AQI (US)
5th April 2026
30AQI (US)
6th April 2026
32AQI (US)
7th April 2026
28AQI (US)
8th April 2026
34AQI (US)
9th April 2026
30AQI (US)
10th April 2026
31AQI (US)
11th April 2026
31AQI (US)
12th April 2026
30AQI (US)
13th April 2026
33AQI (US)
14th April 2026
38AQI (US)
15th April 2026
36AQI (US)
16th April 2026
32AQI (US)
17th April 2026
18th April 2026
29AQI (US)
19th April 2026
32AQI (US)
20th April 2026
28AQI (US)
21st April 2026
28AQI (US)
22nd April 2026
23rd April 2026
24AQI (US)
24th April 2026
24AQI (US)
25th April 2026
28AQI (US)
26th April 2026
32AQI (US)
27th April 2026
27AQI (US)
28th April 2026
26AQI (US)
29th April 2026
24AQI (US)
30th April 2026
26AQI (US)
1st May 2026
26AQI (US)
2nd May 2026
24AQI (US)
3rd May 2026
23AQI (US)
4th May 2026
36AQI (US)
5th May 2026
37AQI (US)
6th May 2026
30AQI (US)
7th May 2026
26AQI (US)
8th May 2026
28AQI (US)
9th May 2026
10th May 2026
32AQI (US)
11th May 2026
28AQI (US)
12th May 2026
26AQI (US)
13th May 2026
36AQI (US)
14th May 2026
22AQI (US)
15th May 2026
44AQI (US)
16th May 2026
49AQI (US)
17th May 2026
77AQI (US)
18th May 2026
60AQI (US)
19th May 2026
46AQI (US)
20th May 2026
51AQI (US)
21st May 2026
44AQI (US)
22nd May 2026
44AQI (US)
23rd May 2026
50AQI (US)
24th May 2026
43AQI (US)
25th May 2026
46AQI (US)
26th May 2026
38AQI (US)
27th May 2026
28AQI (US)
28th May 2026
28AQI (US)
29th May 2026
26AQI (US)
30th May 2026
28AQI (US)
31st May 2026
30AQI (US)
1st June 2026
31AQI (US)
2nd June 2026
32AQI (US)
3rd June 2026
32AQI (US)
4th June 2026
29AQI (US)
5th June 2026
27AQI (US)
6th June 2026
26AQI (US)
7th June 2026
24AQI (US)
8th June 2026
27AQI (US)
9th June 2026
27AQI (US)
10th June 2026
28AQI (US)
11th June 2026
28AQI (US)
12th June 2026
26AQI (US)
13th June 2026
26AQI (US)
14th June 2026
26AQI (US)
15th June 2026
26AQI (US)
16th June 2026
28AQI (US)
17th June 2026
28AQI (US)
18th June 2026
28AQI (US)
19th June 2026
26AQI (US)
20th June 2026
24AQI (US)
21st June 2026
22AQI (US)
22nd June 2026
26AQI (US)
23rd June 2026
25AQI (US)
24th June 2026
24AQI (US)
25th June 2026
33AQI (US)
26th June 2026
30AQI (US)
27th June 2026
32AQI (US)
28th June 2026
38AQI (US)
29th June 2026
34AQI (US)
30th June 2026
27AQI (US)
1st July 2026
30AQI (US)
2nd July 2026
54AQI (US)
3rd July 2026
29AQI (US)
4th July 2026
26AQI (US)
5th July 2026
28AQI (US)
6th July 2026
28AQI (US)
7th July 2026
32AQI (US)
8th July 2026
30AQI (US)
9th July 2026
32AQI (US)
10th July 2026
34AQI (US)
11th July 2026
32AQI (US)
12th July 2026
68AQI (US)
13th July 2026
49AQI (US)
14th July 2026
40AQI (US)
15th July 2026
74AQI (US)
16th July 2026
83AQI (US)
17th July 2026
54AQI (US)
18th July 2026
19th July 2026
20th July 2026
21st July 2026
22nd July 2026
23rd July 2026
24th July 2026
25th July 2026
26th July 2026
27th July 2026
28th July 2026
29th July 2026
30th July 2026
31st July 2026
1st August 2026
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
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

34AQI (US)

45AQI (US)

39AQI (US)

30AQI (US)

37AQI (US)

28AQI (US)

43AQI (US)

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202636AQI (US)

25
6
23
5
30
1
28
27
3
30
12
5
175
20

Highest AQI (US) recorded in

February

45AQI (US)

Lowest AQI (US) recorded in

June

28AQI (US)

202531AQI (US)

30
1
25
3
30
1
30
31
19
11
24
7
18
11
2
30
29
2
30
24
7
320
43
2

Highest AQI (US) recorded in

August

46AQI (US)

Lowest AQI (US) recorded in

May

20AQI (US)

202429AQI (US)

29
1
27
2
30
1
30
31
29
29
2
25
6
29
1
31
30
30
1
350
14

Highest AQI (US) recorded in

February

34AQI (US)

Lowest AQI (US) recorded in

November

18AQI (US)

202337AQI (US)

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 (US) recorded in

June

71AQI (US)

Lowest AQI (US) recorded in

October

28AQI (US)

202233AQI (US)

28
2
20
1
29
2
17
25
4
26
4
18
2
1
26
3
29
2
27
3
30
1
276
24

Highest AQI (US) recorded in

May

37AQI (US)

Lowest AQI (US) recorded in

August

21AQI (US)

202133AQI (US)

24
5
27
1
28
3
30
28
3
24
6
24
7
24
7
27
3
30
1
28
2
29
2
323
40

Highest AQI (US) recorded in

August

40AQI (US)

Lowest AQI (US) recorded in

October

25AQI (US)

202030AQI (US)

13
20
16
2
27
3
26
3
28
3
29
1
30
1
26
4
27
4
242
21

Highest AQI (US) recorded in

May

36AQI (US)

Lowest AQI (US) recorded in

October

22AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2023(Avg.)
37AQI (US)
Least Polluted Year Recorded
2024(Avg.)
29AQI (US)

Peterborough's annual 2026 AQI (US) (36) shows an average percentage change of 12.6% (worsened AQI (US)) compared to previous years: 2020 (30), 2021 (33), 2022 (33), 2023 (37), 2024 (29), 2025 (31).