Chatham, 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+
November Air Quality Analysis
Chatham, Ontario, Canada
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
23rd Nov 2022
67AQILowest AQI recorded on
12th Nov 2024
13AQISame Day Analysis (26th November ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 38 of Good air quality, showing improvement over 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 25th Nov - 26th Nov 2025
Chatham, Ontario, Canada
AQI
Day
Night
.
7 AM25th Nov 2025
5 PM
6 AM26th Nov 2025
Day time
Avg. Highest Time
7AM25th Nov
43AQI
Avg. Lowest Time
5PM25th Nov
23AQI
Night time
Avg. Highest Time
9PM25th Nov
56AQI
Avg. Lowest Time
6PM25th Nov
22AQI
In the last 24 hours,
Chatham's AQI reached its highest point of 56 at 9 PM during the Night, while the lowest point, 22, was recorded at 6 PM during the Night between 25th Nov and 26th Nov 2025.
Day & Night AQI Trend : Oct - Nov 2025
Chatham, Ontario, Canada
OctNov
27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th
Day
Night
27th Oct 2025187 AMAQI
27th Oct 2025188 AMAQI
27th Oct 2025279 AMAQI
27th Oct 20253810 AMAQI
27th Oct 20254511 AMAQI
27th Oct 20254312 PMAQI
27th Oct 2025361 PMAQI
27th Oct 2025242 PMAQI
27th Oct 2025183 PMAQI
27th Oct 2025164 PMAQI
27th Oct 2025185 PMAQI
27th Oct 2025226 PMAQI
27th Oct 2025207 PMAQI
27th Oct 2025168 PMAQI
27th Oct 2025149 PMAQI
27th Oct 20251410 PMAQI
27th Oct 20251611 PMAQI
28th Oct 20251712 AMAQI
28th Oct 2025171 AMAQI
28th Oct 2025172 AMAQI
28th Oct 2025173 AMAQI
28th Oct 2025174 AMAQI
28th Oct 2025175 AMAQI
28th Oct 2025176 AMAQI
--°C/°C
28th Oct 2025177 AMAQI
28th Oct 2025178 AMAQI
28th Oct 2025179 AMAQI
28th Oct 20251810 AMAQI
28th Oct 20252711 AMAQI
28th Oct 20253312 PMAQI
28th Oct 2025331 PMAQI
28th Oct 2025332 PMAQI
28th Oct 2025303 PMAQI
28th Oct 2025284 PMAQI
28th Oct 2025225 PMAQI
28th Oct 2025206 PMAQI
28th Oct 2025197 PMAQI
28th Oct 2025178 PMAQI
28th Oct 2025179 PMAQI
28th Oct 20251810 PMAQI
28th Oct 20252111 PMAQI
29th Oct 20252212 AMAQI
29th Oct 2025221 AMAQI
29th Oct 2025222 AMAQI
29th Oct 2025223 AMAQI
29th Oct 2025224 AMAQI
29th Oct 2025225 AMAQI
29th Oct 2025226 AMAQI
9°C4/17°C
29th Oct 2025187 AMAQI
29th Oct 2025178 AMAQI
29th Oct 2025209 AMAQI
29th Oct 20252910 AMAQI
29th Oct 20253711 AMAQI
29th Oct 20253212 PMAQI
29th Oct 2025281 PMAQI
29th Oct 2025282 PMAQI
29th Oct 2025243 PMAQI
29th Oct 2025224 PMAQI
29th Oct 2025205 PMAQI
29th Oct 2025186 PMAQI
29th Oct 2025217 PMAQI
29th Oct 2025228 PMAQI
29th Oct 2025229 PMAQI
29th Oct 20252610 PMAQI
29th Oct 20253911 PMAQI
30th Oct 20253312 AMAQI
30th Oct 2025311 AMAQI
30th Oct 2025302 AMAQI
30th Oct 2025283 AMAQI
30th Oct 2025244 AMAQI
30th Oct 2025225 AMAQI
30th Oct 2025226 AMAQI
9°C4/17°C
30th Oct 2025227 AMAQI
30th Oct 2025228 AMAQI
30th Oct 2025229 AMAQI
30th Oct 20252210 AMAQI
30th Oct 20252611 AMAQI
30th Oct 20252812 PMAQI
30th Oct 2025241 PMAQI
30th Oct 2025222 PMAQI
30th Oct 2025223 PMAQI
30th Oct 2025264 PMAQI
30th Oct 2025255 PMAQI
30th Oct 2025226 PMAQI
30th Oct 2025227 PMAQI
30th Oct 2025208 PMAQI
30th Oct 2025179 PMAQI
30th Oct 20251710 PMAQI
30th Oct 20251711 PMAQI
31st Oct 20251712 AMAQI
31st Oct 2025171 AMAQI
31st Oct 2025172 AMAQI
31st Oct 2025133 AMAQI
31st Oct 2025154 AMAQI
31st Oct 2025175 AMAQI
31st Oct 2025176 AMAQI
7°C3/12°C
31st Oct 2025177 AMAQI
31st Oct 2025178 AMAQI
31st Oct 2025179 AMAQI
31st Oct 20251710 AMAQI
31st Oct 20251711 AMAQI
31st Oct 20251712 PMAQI
31st Oct 2025171 PMAQI
31st Oct 2025172 PMAQI
31st Oct 2025183 PMAQI
31st Oct 2025164 PMAQI
31st Oct 2025155 PMAQI
31st Oct 2025156 PMAQI
31st Oct 2025197 PMAQI
31st Oct 2025188 PMAQI
31st Oct 2025179 PMAQI
31st Oct 20251710 PMAQI
31st Oct 20251711 PMAQI
1st Nov 20251712 AMAQI
1st Nov 2025171 AMAQI
1st Nov 2025172 AMAQI
1st Nov 2025173 AMAQI
1st Nov 2025174 AMAQI
1st Nov 2025175 AMAQI
1st Nov 2025176 AMAQI
6°C5/8°C
1st Nov 2025207 AMAQI
1st Nov 2025228 AMAQI
1st Nov 2025269 AMAQI
1st Nov 20253110 AMAQI
1st Nov 20253311 AMAQI
1st Nov 20253712 PMAQI
1st Nov 2025391 PMAQI
1st Nov 2025392 PMAQI
1st Nov 2025423 PMAQI
1st Nov 2025504 PMAQI
1st Nov 2025535 PMAQI
1st Nov 2025516 PMAQI
1st Nov 2025437 PMAQI
1st Nov 2025478 PMAQI
1st Nov 2025549 PMAQI
1st Nov 20255810 PMAQI
1st Nov 20255811 PMAQI
2nd Nov 20255612 AMAQI
2nd Nov 2025521 AMAQI
2nd Nov 2025552 AMAQI
2nd Nov 2025553 AMAQI
2nd Nov 2025544 AMAQI
2nd Nov 2025535 AMAQI
2nd Nov 2025506 AMAQI
8°C3/14°C
2nd Nov 2025457 AMAQI
2nd Nov 2025358 AMAQI
2nd Nov 2025349 AMAQI
2nd Nov 20253410 AMAQI
2nd Nov 20253411 AMAQI
2nd Nov 20254212 PMAQI
2nd Nov 2025441 PMAQI
2nd Nov 2025442 PMAQI
2nd Nov 2025443 PMAQI
2nd Nov 2025444 PMAQI
2nd Nov 2025405 PMAQI
2nd Nov 2025346 PMAQI
2nd Nov 2025337 PMAQI
2nd Nov 2025438 PMAQI
2nd Nov 2025499 PMAQI
2nd Nov 20255310 PMAQI
2nd Nov 20255311 PMAQI
3rd Nov 20254512 AMAQI
3rd Nov 2025441 AMAQI
3rd Nov 2025442 AMAQI
3rd Nov 2025443 AMAQI
3rd Nov 2025404 AMAQI
3rd Nov 2025395 AMAQI
3rd Nov 2025436 AMAQI
7°C0/15°C
3rd Nov 2025497 AMAQI
3rd Nov 2025458 AMAQI
3rd Nov 2025409 AMAQI
3rd Nov 20253410 AMAQI
3rd Nov 20253311 AMAQI
3rd Nov 20253812 PMAQI
3rd Nov 2025391 PMAQI
3rd Nov 2025342 PMAQI
3rd Nov 2025333 PMAQI
3rd Nov 2025334 PMAQI
3rd Nov 2025245 PMAQI
3rd Nov 2025216 PMAQI
3rd Nov 2025227 PMAQI
3rd Nov 2025208 PMAQI
3rd Nov 2025189 PMAQI
3rd Nov 20251810 PMAQI
3rd Nov 20251911 PMAQI
4th Nov 20251612 AMAQI
4th Nov 2025151 AMAQI
4th Nov 2025132 AMAQI
4th Nov 2025163 AMAQI
4th Nov 2025144 AMAQI
4th Nov 2025135 AMAQI
4th Nov 2025166 AMAQI
9°C5/17°C
4th Nov 2025137 AMAQI
4th Nov 2025168 AMAQI
4th Nov 2025179 AMAQI
4th Nov 20252110 AMAQI
4th Nov 20252511 AMAQI
4th Nov 20252812 PMAQI
4th Nov 2025291 PMAQI
4th Nov 2025292 PMAQI
4th Nov 2025223 PMAQI
4th Nov 2025204 PMAQI
4th Nov 2025185 PMAQI
4th Nov 2025186 PMAQI
4th Nov 2025187 PMAQI
4th Nov 2025208 PMAQI
4th Nov 2025229 PMAQI
4th Nov 20252610 PMAQI
4th Nov 20252711 PMAQI
5th Nov 20252812 AMAQI
5th Nov 2025281 AMAQI
5th Nov 2025262 AMAQI
5th Nov 2025223 AMAQI
5th Nov 2025224 AMAQI
5th Nov 2025235 AMAQI
5th Nov 2025256 AMAQI
10°C4/19°C
5th Nov 2025287 AMAQI
5th Nov 2025288 AMAQI
5th Nov 2025289 AMAQI
5th Nov 20253210 AMAQI
5th Nov 20253811 AMAQI
5th Nov 20253912 PMAQI
5th Nov 2025391 PMAQI
5th Nov 2025432 PMAQI
5th Nov 2025513 PMAQI
5th Nov 2025554 PMAQI
5th Nov 2025455 PMAQI
5th Nov 2025446 PMAQI
5th Nov 2025317 PMAQI
5th Nov 2025248 PMAQI
5th Nov 2025189 PMAQI
5th Nov 20251210 PMAQI
5th Nov 20252011 PMAQI
6th Nov 20252212 AMAQI
6th Nov 2025131 AMAQI
6th Nov 2025162 AMAQI
6th Nov 2025213 AMAQI
6th Nov 2025184 AMAQI
6th Nov 2025175 AMAQI
6th Nov 2025176 AMAQI
11°C6/17°C
6th Nov 2025177 AMAQI
6th Nov 2025178 AMAQI
6th Nov 2025179 AMAQI
6th Nov 20252110 AMAQI
6th Nov 20252711 AMAQI
6th Nov 20252312 PMAQI
6th Nov 2025181 PMAQI
6th Nov 2025332 PMAQI
6th Nov 2025163 PMAQI
6th Nov 2025184 PMAQI
6th Nov 2025345 PMAQI
6th Nov 2025216 PMAQI
6th Nov 2025227 PMAQI
6th Nov 2025298 PMAQI
6th Nov 2025329 PMAQI
6th Nov 20252910 PMAQI
6th Nov 20252411 PMAQI
7th Nov 20252212 AMAQI
7th Nov 2025221 AMAQI
7th Nov 2025222 AMAQI
7th Nov 2025183 AMAQI
7th Nov 2025214 AMAQI
7th Nov 2025185 AMAQI
7th Nov 2025176 AMAQI
6°C0/13°C
7th Nov 2025217 AMAQI
7th Nov 2025228 AMAQI
7th Nov 2025229 AMAQI
7th Nov 20252210 AMAQI
7th Nov 20252211 AMAQI
7th Nov 20252212 PMAQI
7th Nov 2025221 PMAQI
7th Nov 2025302 PMAQI
7th Nov 2025423 PMAQI
7th Nov 2025494 PMAQI
7th Nov 2025545 PMAQI
7th Nov 2025556 PMAQI
7th Nov 2025557 PMAQI
7th Nov 2025568 PMAQI
7th Nov 2025539 PMAQI
7th Nov 20254610 PMAQI
7th Nov 20254011 PMAQI
8th Nov 20253912 AMAQI
8th Nov 2025391 AMAQI
8th Nov 2025432 AMAQI
8th Nov 2025363 AMAQI
8th Nov 2025234 AMAQI
8th Nov 2025205 AMAQI
8th Nov 2025216 AMAQI
8°C6/11°C
8th Nov 2025137 AMAQI
8th Nov 2025158 AMAQI
8th Nov 2025199 AMAQI
8th Nov 20253010 AMAQI
8th Nov 20251311 AMAQI
8th Nov 20252212 PMAQI
8th Nov 2025331 PMAQI
8th Nov 2025292 PMAQI
8th Nov 2025213 PMAQI
8th Nov 2025144 PMAQI
8th Nov 2025205 PMAQI
8th Nov 2025176 PMAQI
8th Nov 2025177 PMAQI
8th Nov 2025268 PMAQI
8th Nov 2025369 PMAQI
8th Nov 20253910 PMAQI
8th Nov 20252211 PMAQI
9th Nov 20251712 AMAQI
9th Nov 2025441 AMAQI
9th Nov 2025262 AMAQI
9th Nov 2025173 AMAQI
9th Nov 2025174 AMAQI
9th Nov 2025175 AMAQI
9th Nov 2025176 AMAQI
5°C3/7°C
9th Nov 2025257 AMAQI
9th Nov 2025368 AMAQI
9th Nov 2025399 AMAQI
9th Nov 20253910 AMAQI
9th Nov 20253411 AMAQI
9th Nov 20252512 PMAQI
9th Nov 2025181 PMAQI
9th Nov 2025172 PMAQI
9th Nov 2025123 PMAQI
9th Nov 2025164 PMAQI
9th Nov 2025125 PMAQI
9th Nov 2025116 PMAQI
9th Nov 2025117 PMAQI
9th Nov 2025118 PMAQI
9th Nov 2025119 PMAQI
9th Nov 20251510 PMAQI
9th Nov 20251711 PMAQI
10th Nov 20251712 AMAQI
10th Nov 2025171 AMAQI
10th Nov 2025172 AMAQI
10th Nov 2025123 AMAQI
10th Nov 2025114 AMAQI
10th Nov 2025165 AMAQI
10th Nov 2025126 AMAQI
1°C-1/2°C
10th Nov 2025117 AMAQI
10th Nov 2025118 AMAQI
10th Nov 2025119 AMAQI
10th Nov 20251610 AMAQI
10th Nov 20251711 AMAQI
10th Nov 20251712 PMAQI
10th Nov 2025171 PMAQI
10th Nov 2025172 PMAQI
10th Nov 2025173 PMAQI
10th Nov 2025174 PMAQI
10th Nov 2025175 PMAQI
10th Nov 2025176 PMAQI
10th Nov 2025177 PMAQI
10th Nov 2025178 PMAQI
10th Nov 2025179 PMAQI
10th Nov 20251710 PMAQI
10th Nov 20251711 PMAQI
11th Nov 20251712 AMAQI
11th Nov 2025171 AMAQI
11th Nov 2025172 AMAQI
11th Nov 2025173 AMAQI
11th Nov 2025174 AMAQI
11th Nov 2025175 AMAQI
11th Nov 2025176 AMAQI
-2°C-5/0°C
11th Nov 2025217 AMAQI
11th Nov 2025148 AMAQI
11th Nov 2025139 AMAQI
11th Nov 20251310 AMAQI
11th Nov 20251611 AMAQI
11th Nov 20251712 PMAQI
11th Nov 2025171 PMAQI
11th Nov 2025212 PMAQI
11th Nov 2025223 PMAQI
11th Nov 2025274 PMAQI
11th Nov 2025285 PMAQI
11th Nov 2025236 PMAQI
11th Nov 2025227 PMAQI
11th Nov 2025278 PMAQI
11th Nov 2025289 PMAQI
11th Nov 20252410 PMAQI
11th Nov 20252211 PMAQI
12th Nov 20252212 AMAQI
12th Nov 2025221 AMAQI
12th Nov 2025222 AMAQI
12th Nov 2025223 AMAQI
12th Nov 2025224 AMAQI
12th Nov 2025275 AMAQI
12th Nov 2025286 AMAQI
0°C-5/5°C
12th Nov 2025287 AMAQI
12th Nov 2025328 AMAQI
12th Nov 2025339 AMAQI
12th Nov 20253310 AMAQI
12th Nov 20253811 AMAQI
12th Nov 20253912 PMAQI
12th Nov 2025431 PMAQI
12th Nov 2025442 PMAQI
12th Nov 2025443 PMAQI
12th Nov 2025344 PMAQI
12th Nov 2025285 PMAQI
12th Nov 2025236 PMAQI
12th Nov 2025207 PMAQI
12th Nov 2025188 PMAQI
12th Nov 2025179 PMAQI
12th Nov 20251710 PMAQI
12th Nov 20251511 PMAQI
13th Nov 20251612 AMAQI
13th Nov 2025171 AMAQI
13th Nov 2025172 AMAQI
13th Nov 2025173 AMAQI
13th Nov 2025174 AMAQI
13th Nov 2025175 AMAQI
13th Nov 2025176 AMAQI
5°C1/9°C
13th Nov 2025177 AMAQI
13th Nov 2025178 AMAQI
13th Nov 2025219 AMAQI
13th Nov 20252210 AMAQI
13th Nov 20252211 AMAQI
13th Nov 20253012 PMAQI
13th Nov 2025271 PMAQI
13th Nov 2025252 PMAQI
13th Nov 2025203 PMAQI
13th Nov 2025174 PMAQI
13th Nov 2025175 PMAQI
13th Nov 2025186 PMAQI
13th Nov 2025167 PMAQI
13th Nov 2025178 PMAQI
13th Nov 2025269 PMAQI
13th Nov 20252510 PMAQI
13th Nov 20253511 PMAQI
14th Nov 20253912 AMAQI
14th Nov 2025311 AMAQI
14th Nov 2025282 AMAQI
14th Nov 2025283 AMAQI
14th Nov 2025284 AMAQI
14th Nov 2025285 AMAQI
14th Nov 2025286 AMAQI
5°C0/13°C
14th Nov 2025287 AMAQI
14th Nov 2025368 AMAQI
14th Nov 2025399 AMAQI
14th Nov 20253710 AMAQI
14th Nov 20253911 AMAQI
14th Nov 20254312 PMAQI
14th Nov 2025431 PMAQI
14th Nov 2025422 PMAQI
14th Nov 2025393 PMAQI
14th Nov 2025324 PMAQI
14th Nov 2025325 PMAQI
14th Nov 2025386 PMAQI
14th Nov 2025407 PMAQI
14th Nov 2025508 PMAQI
14th Nov 2025549 PMAQI
14th Nov 20255210 PMAQI
14th Nov 20255711 PMAQI
15th Nov 20255512 AMAQI
15th Nov 2025521 AMAQI
15th Nov 2025502 AMAQI
15th Nov 2025463 AMAQI
15th Nov 2025494 AMAQI
15th Nov 2025525 AMAQI
15th Nov 2025536 AMAQI
6°C0/16°C
15th Nov 2025557 AMAQI
15th Nov 2025598 AMAQI
15th Nov 2025669 AMAQI
15th Nov 20257410 AMAQI
15th Nov 20257111 AMAQI
15th Nov 20256212 PMAQI
15th Nov 2025561 PMAQI
15th Nov 2025552 PMAQI
15th Nov 2025533 PMAQI
15th Nov 2025514 PMAQI
15th Nov 2025525 PMAQI
15th Nov 2025516 PMAQI
15th Nov 2025527 PMAQI
15th Nov 2025558 PMAQI
15th Nov 2025559 PMAQI
15th Nov 20255710 PMAQI
15th Nov 20255611 PMAQI
16th Nov 20255412 AMAQI
16th Nov 2025371 AMAQI
16th Nov 2025202 AMAQI
16th Nov 2025173 AMAQI
16th Nov 2025174 AMAQI
16th Nov 2025175 AMAQI
16th Nov 2025176 AMAQI
10°C3/17°C
16th Nov 2025177 AMAQI
16th Nov 2025178 AMAQI
16th Nov 2025179 AMAQI
16th Nov 20252110 AMAQI
16th Nov 20252211 AMAQI
16th Nov 20252212 PMAQI
16th Nov 2025181 PMAQI
16th Nov 2025172 PMAQI
16th Nov 2025173 PMAQI
16th Nov 2025174 PMAQI
16th Nov 2025135 PMAQI
16th Nov 2025116 PMAQI
16th Nov 2025117 PMAQI
16th Nov 2025118 PMAQI
16th Nov 2025119 PMAQI
16th Nov 20251110 PMAQI
16th Nov 20251111 PMAQI
17th Nov 20251612 AMAQI
17th Nov 2025121 AMAQI
17th Nov 2025162 AMAQI
17th Nov 2025133 AMAQI
17th Nov 2025124 AMAQI
17th Nov 2025145 AMAQI
17th Nov 2025166 AMAQI
5°C2/6°C
17th Nov 2025177 AMAQI
17th Nov 2025178 AMAQI
17th Nov 2025189 AMAQI
17th Nov 20251710 AMAQI
17th Nov 20251811 AMAQI
17th Nov 20251812 PMAQI
17th Nov 2025181 PMAQI
17th Nov 2025172 PMAQI
17th Nov 2025173 PMAQI
17th Nov 2025184 PMAQI
17th Nov 2025135 PMAQI
17th Nov 2025166 PMAQI
17th Nov 2025177 PMAQI
17th Nov 2025188 PMAQI
17th Nov 2025259 PMAQI
17th Nov 20253610 PMAQI
17th Nov 20254111 PMAQI
18th Nov 20254812 AMAQI
18th Nov 2025481 AMAQI
18th Nov 2025422 AMAQI
18th Nov 2025463 AMAQI
18th Nov 2025404 AMAQI
18th Nov 2025505 AMAQI
18th Nov 2025476 AMAQI
2°C-2/6°C
18th Nov 2025447 AMAQI
18th Nov 2025448 AMAQI
18th Nov 2025239 AMAQI
18th Nov 20254910 AMAQI
18th Nov 20256011 AMAQI
18th Nov 20256112 PMAQI
18th Nov 2025451 PMAQI
18th Nov 2025422 PMAQI
18th Nov 2025433 PMAQI
18th Nov 2025244 PMAQI
18th Nov 2025275 PMAQI
18th Nov 2025226 PMAQI
18th Nov 2025207 PMAQI
18th Nov 2025228 PMAQI
18th Nov 2025229 PMAQI
18th Nov 20252610 PMAQI
18th Nov 20252811 PMAQI
19th Nov 20252812 AMAQI
19th Nov 2025321 AMAQI
19th Nov 2025332 AMAQI
19th Nov 2025373 AMAQI
19th Nov 2025344 AMAQI
19th Nov 2025295 AMAQI
19th Nov 2025286 AMAQI
1°C-4/6°C
19th Nov 2025287 AMAQI
19th Nov 2025248 AMAQI
19th Nov 2025249 AMAQI
19th Nov 20253010 AMAQI
19th Nov 20253911 AMAQI
19th Nov 20253412 PMAQI
19th Nov 2025311 PMAQI
19th Nov 2025282 PMAQI
19th Nov 2025283 PMAQI
19th Nov 2025314 PMAQI
19th Nov 2025265 PMAQI
19th Nov 2025256 PMAQI
19th Nov 2025247 PMAQI
19th Nov 2025248 PMAQI
19th Nov 2025319 PMAQI
19th Nov 20254110 PMAQI
19th Nov 20254011 PMAQI
20th Nov 20253912 AMAQI
20th Nov 2025341 AMAQI
20th Nov 2025292 AMAQI
20th Nov 2025273 AMAQI
20th Nov 2025234 AMAQI
20th Nov 2025255 AMAQI
20th Nov 2025286 AMAQI
3°C-1/8°C
20th Nov 2025437 AMAQI
20th Nov 2025438 AMAQI
20th Nov 2025389 AMAQI
20th Nov 20253210 AMAQI
20th Nov 20253511 AMAQI
20th Nov 20254612 PMAQI
20th Nov 2025471 PMAQI
20th Nov 2025422 PMAQI
20th Nov 2025423 PMAQI
20th Nov 2025414 PMAQI
20th Nov 2025435 PMAQI
20th Nov 2025446 PMAQI
20th Nov 2025447 PMAQI
20th Nov 2025448 PMAQI
20th Nov 2025449 PMAQI
20th Nov 20256010 PMAQI
20th Nov 20256911 PMAQI
21st Nov 20256912 AMAQI
21st Nov 2025611 AMAQI
21st Nov 2025592 AMAQI
21st Nov 2025663 AMAQI
21st Nov 2025644 AMAQI
21st Nov 2025625 AMAQI
21st Nov 2025606 AMAQI
3°C-2/8°C
21st Nov 2025577 AMAQI
21st Nov 2025558 AMAQI
21st Nov 2025539 AMAQI
21st Nov 20255310 AMAQI
21st Nov 20255611 AMAQI
21st Nov 20255812 PMAQI
21st Nov 2025591 PMAQI
21st Nov 2025622 PMAQI
21st Nov 2025633 PMAQI
21st Nov 2025634 PMAQI
21st Nov 2025605 PMAQI
21st Nov 2025576 PMAQI
21st Nov 2025577 PMAQI
21st Nov 2025598 PMAQI
21st Nov 2025599 PMAQI
21st Nov 20256110 PMAQI
21st Nov 20256011 PMAQI
22nd Nov 20255812 AMAQI
22nd Nov 2025561 AMAQI
22nd Nov 2025542 AMAQI
22nd Nov 2025463 AMAQI
22nd Nov 2025404 AMAQI
22nd Nov 2025305 AMAQI
22nd Nov 2025236 AMAQI
8°C4/13°C
22nd Nov 2025277 AMAQI
22nd Nov 2025288 AMAQI
22nd Nov 2025289 AMAQI
22nd Nov 20252810 AMAQI
22nd Nov 20252411 AMAQI
22nd Nov 20251812 PMAQI
22nd Nov 2025171 PMAQI
22nd Nov 2025172 PMAQI
22nd Nov 2025133 PMAQI
22nd Nov 2025164 PMAQI
22nd Nov 2025175 PMAQI
22nd Nov 2025176 PMAQI
22nd Nov 2025207 PMAQI
22nd Nov 2025208 PMAQI
22nd Nov 2025219 PMAQI
22nd Nov 20252610 PMAQI
22nd Nov 20253211 PMAQI
23rd Nov 20252912 AMAQI
23rd Nov 2025281 AMAQI
23rd Nov 2025322 AMAQI
23rd Nov 2025333 AMAQI
23rd Nov 2025334 AMAQI
23rd Nov 2025335 AMAQI
23rd Nov 2025386 AMAQI
3°C-1/8°C
23rd Nov 2025437 AMAQI
23rd Nov 2025488 AMAQI
23rd Nov 2025509 AMAQI
23rd Nov 20255210 AMAQI
23rd Nov 20255311 AMAQI
23rd Nov 20255112 PMAQI
23rd Nov 2025501 PMAQI
23rd Nov 2025502 PMAQI
23rd Nov 2025373 PMAQI
23rd Nov 2025294 PMAQI
23rd Nov 2025245 PMAQI
23rd Nov 2025226 PMAQI
23rd Nov 2025227 PMAQI
23rd Nov 2025188 PMAQI
23rd Nov 2025179 PMAQI
23rd Nov 20252110 PMAQI
23rd Nov 20252211 PMAQI
24th Nov 20252212 AMAQI
24th Nov 2025221 AMAQI
24th Nov 2025222 AMAQI
24th Nov 2025223 AMAQI
24th Nov 2025224 AMAQI
24th Nov 2025225 AMAQI
24th Nov 2025226 AMAQI
6°C2/14°C
24th Nov 2025227 AMAQI
24th Nov 2025438 AMAQI
24th Nov 2025349 AMAQI
24th Nov 20254710 AMAQI
24th Nov 20256611 AMAQI
24th Nov 20257312 PMAQI
24th Nov 2025501 PMAQI
24th Nov 2025362 PMAQI
24th Nov 2025273 PMAQI
24th Nov 2025324 PMAQI
24th Nov 2025455 PMAQI
24th Nov 2025446 PMAQI
24th Nov 2025457 PMAQI
24th Nov 2025568 PMAQI
24th Nov 2025569 PMAQI
24th Nov 20256710 PMAQI
24th Nov 20255811 PMAQI
25th Nov 20255612 AMAQI
25th Nov 2025521 AMAQI
25th Nov 2025492 AMAQI
25th Nov 2025473 AMAQI
25th Nov 2025534 AMAQI
25th Nov 2025425 AMAQI
25th Nov 2025496 AMAQI
4°C-3/11°C
25th Nov 2025437 AMAQI
25th Nov 2025398 AMAQI
25th Nov 2025439 AMAQI
25th Nov 20253610 AMAQI
25th Nov 20253311 AMAQI
25th Nov 20253312 PMAQI
25th Nov 2025331 PMAQI
25th Nov 2025332 PMAQI
25th Nov 2025333 PMAQI
25th Nov 2025294 PMAQI
25th Nov 2025235 PMAQI
25th Nov 2025226 PMAQI
25th Nov 2025537 PMAQI
25th Nov 2025548 PMAQI
25th Nov 2025569 PMAQI
25th Nov 20255410 PMAQI
25th Nov 20254711 PMAQI
26th Nov 20254412 AMAQI
26th Nov 2025441 AMAQI
26th Nov 2025442 AMAQI
26th Nov 2025443 AMAQI
26th Nov 2025474 AMAQI
26th Nov 2025505 AMAQI
26th Nov 2025466 AMAQI
8°C5/10°C
26th Nov 2025447 AMAQI
7 AM26th Nov 2025408 AMAQI
26th Nov 2025359 AMAQI
26th Nov 20253810 AMAQI
26th Nov 20252611 AMAQI
26th Nov 20252212 PMAQI
12 PM26th Nov 2025181 PMAQI
26th Nov 2025172 PMAQI
26th Nov 2025173 PMAQI
26th Nov 2025174 PMAQI
26th Nov 2025145 PMAQI
5 PM26th Nov 2025146 PMAQI
26th Nov 2025157 PMAQI
26th Nov 2025138 PMAQI
26th Nov 2025169 PMAQI
26th Nov 20251710 PMAQI
26th Nov 20251411 PMAQI
12 AM
6 AM
5°C0/9°C
Day time
Avg. Highest Time
11 AM - 12 PM
35AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
7 AM
28AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 12 PM (Avg. 35), while the lowest AQI was between 7 AM to 7 AM (Avg. 28).
Night time
Avg. Highest Time
11 PM
33AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
5 AM - 7 PM
27AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 PM to 11 PM (Avg. 33), while the lowest AQI was between 5 AM to 7 PM (Avg. 27).
2025 Days Vs Air Quality
Chatham, Ontario, Canada
2025
85%
282
14%
46
0.6%
2
Total number of days with different AQI categories in last 331 days in 2025 (34 days remaining)
Good
282 DaysModerate
46 DaysPoor
2 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 85%
Health Risk Level:
Low
In 2025, 85% of 331 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
Chatham, 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.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
20AQI
20AQI
2nd January 2025
24AQI
24AQI
3rd January 2025
23AQI
23AQI
4th January 2025
26AQI
26AQI
5th January 2025
25AQI
25AQI
6th January 2025
22AQI
22AQI
7th January 2025
23AQI
23AQI
8th January 2025
25AQI
25AQI
9th January 2025
24AQI
24AQI
10th January 2025
57AQI
57AQI
11th January 2025
59AQI
59AQI
12th January 2025
49AQI
49AQI
13th January 2025
32AQI
32AQI
14th January 2025
26AQI
26AQI
15th January 2025
27AQI
27AQI
16th January 2025
51AQI
51AQI
17th January 2025
42AQI
42AQI
18th January 2025
28AQI
28AQI
19th January 2025
26AQI
26AQI
20th January 2025
25AQI
25AQI
21st January 2025
25AQI
25AQI
22nd January 2025
29AQI
29AQI
23rd January 2025
38AQI
38AQI
24th January 2025
32AQI
32AQI
25th January 2025
48AQI
48AQI
26th January 2025
31AQI
31AQI
27th January 2025
30AQI
30AQI
28th January 2025
27AQI
27AQI
29th January 2025
25AQI
25AQI
30th January 2025
29AQI
29AQI
31st January 2025
40AQI
40AQI
1st February 2025
26AQI
26AQI
2nd February 2025
33AQI
33AQI
3rd February 2025
57AQI
57AQI
4th February 2025
25AQI
25AQI
5th February 2025
23AQI
23AQI
6th February 2025
30AQI
30AQI
7th February 2025
27AQI
27AQI
8th February 2025
39AQI
39AQI
9th February 2025
36AQI
36AQI
10th February 2025
33AQI
33AQI
11th February 2025
43AQI
43AQI
12th February 2025
35AQI
35AQI
13th February 2025
31AQI
31AQI
14th February 2025
40AQI
40AQI
15th February 2025
43AQI
43AQI
16th February 2025
36AQI
36AQI
17th February 2025
27AQI
27AQI
18th February 2025
26AQI
26AQI
19th February 2025
26AQI
26AQI
20th February 2025
24AQI
24AQI
21st February 2025
29AQI
29AQI
22nd February 2025
54AQI
54AQI
23rd February 2025
55AQI
55AQI
24th February 2025
50AQI
50AQI
25th February 2025
44AQI
44AQI
26th February 2025
41AQI
41AQI
27th February 2025
48AQI
48AQI
28th February 2025
25AQI
25AQI
1st March 2025
29AQI
29AQI
2nd March 2025
28AQI
28AQI
3rd March 2025
40AQI
40AQI
4th March 2025
35AQI
35AQI
5th March 2025
31AQI
31AQI
6th March 2025
28AQI
28AQI
7th March 2025
28AQI
28AQI
8th March 2025
31AQI
31AQI
9th March 2025
28AQI
28AQI
10th March 2025
30AQI
30AQI
11th March 2025
30AQI
30AQI
12th March 2025
28AQI
28AQI
13th March 2025
26AQI
26AQI
14th March 2025
44AQI
44AQI
15th March 2025
43AQI
43AQI
16th March 2025
22AQI
22AQI
17th March 2025
16AQI
16AQI
18th March 2025
23AQI
23AQI
19th March 2025
32AQI
32AQI
20th March 2025
23AQI
23AQI
21st March 2025
18AQI
18AQI
22nd March 2025
17AQI
17AQI
23rd March 2025
17AQI
17AQI
24th March 2025
21AQI
21AQI
25th March 2025
18AQI
18AQI
26th March 2025
19AQI
19AQI
27th March 2025
31AQI
31AQI
28th March 2025
39AQI
39AQI
29th March 2025
50AQI
50AQI
30th March 2025
36AQI
36AQI
31st March 2025
20AQI
20AQI
1st April 2025
17AQI
17AQI
2nd April 2025
19AQI
19AQI
3rd April 2025
21AQI
21AQI
4th April 2025
17AQI
17AQI
5th April 2025
19AQI
19AQI
6th April 2025
17AQI
17AQI
7th April 2025
19AQI
19AQI
8th April 2025
16AQI
16AQI
9th April 2025
22AQI
22AQI
10th April 2025
25AQI
25AQI
11th April 2025
29AQI
29AQI
12th April 2025
20AQI
20AQI
13th April 2025
28AQI
28AQI
14th April 2025
26AQI
26AQI
15th April 2025
17AQI
17AQI
16th April 2025
14AQI
14AQI
17th April 2025
24AQI
24AQI
18th April 2025
37AQI
37AQI
19th April 2025
47AQI
47AQI
20th April 2025
18AQI
18AQI
21st April 2025
24AQI
24AQI
22nd April 2025
15AQI
15AQI
23rd April 2025
33AQI
33AQI
24th April 2025
47AQI
47AQI
25th April 2025
40AQI
40AQI
26th April 2025
25AQI
25AQI
27th April 2025
20AQI
20AQI
28th April 2025
25AQI
25AQI
29th April 2025
35AQI
35AQI
30th April 2025
17AQI
17AQI
1st May 2025
25AQI
25AQI
2nd May 2025
30AQI
30AQI
3rd May 2025
17AQI
17AQI
4th May 2025
17AQI
17AQI
5th May 2025
19AQI
19AQI
6th May 2025
25AQI
25AQI
7th May 2025
28AQI
28AQI
8th May 2025
18AQI
18AQI
9th May 2025
18AQI
18AQI
10th May 2025
27AQI
27AQI
11th May 2025
22AQI
22AQI
12th May 2025
29AQI
29AQI
13th May 2025
23AQI
23AQI
14th May 2025
17AQI
17AQI
15th May 2025
24AQI
24AQI
16th May 2025
30AQI
30AQI
17th May 2025
23AQI
23AQI
18th May 2025
18AQI
18AQI
19th May 2025
14AQI
14AQI
20th May 2025
15AQI
15AQI
21st May 2025
16AQI
16AQI
22nd May 2025
14AQI
14AQI
23rd May 2025
11AQI
11AQI
24th May 2025
11AQI
11AQI
25th May 2025
27AQI
27AQI
26th May 2025
20AQI
20AQI
27th May 2025
23AQI
23AQI
28th May 2025
16AQI
16AQI
29th May 2025
30AQI
30AQI
30th May 2025
33AQI
33AQI
31st May 2025
24AQI
24AQI
1st June 2025
20AQI
20AQI
2nd June 2025
25AQI
25AQI
3rd June 2025
42AQI
42AQI
4th June 2025
68AQI
68AQI
5th June 2025
74AQI
74AQI
6th June 2025
99AQI
99AQI
7th June 2025
69AQI
69AQI
8th June 2025
99AQI
99AQI
9th June 2025
75AQI
75AQI
10th June 2025
54AQI
54AQI
11th June 2025
68AQI
68AQI
12th June 2025
74AQI
74AQI
13th June 2025
51AQI
51AQI
14th June 2025
40AQI
40AQI
15th June 2025
43AQI
43AQI
16th June 2025
36AQI
36AQI
17th June 2025
33AQI
33AQI
18th June 2025
27AQI
27AQI
19th June 2025
21AQI
21AQI
20th June 2025
31AQI
31AQI
21st June 2025
37AQI
37AQI
22nd June 2025
41AQI
41AQI
23rd June 2025
51AQI
51AQI
24th June 2025
53AQI
53AQI
25th June 2025
40AQI
40AQI
26th June 2025
42AQI
42AQI
27th June 2025
39AQI
39AQI
28th June 2025
28AQI
28AQI
29th June 2025
32AQI
32AQI
30th June 2025
29AQI
29AQI
1st July 2025
26AQI
26AQI
2nd July 2025
36AQI
36AQI
3rd July 2025
49AQI
49AQI
4th July 2025
49AQI
49AQI
5th July 2025
54AQI
54AQI
6th July 2025
52AQI
52AQI
7th July 2025
38AQI
38AQI
8th July 2025
48AQI
48AQI
9th July 2025
55AQI
55AQI
10th July 2025
51AQI
51AQI
11th July 2025
47AQI
47AQI
12th July 2025
36AQI
36AQI
13th July 2025
34AQI
34AQI
14th July 2025
66AQI
66AQI
15th July 2025
86AQI
86AQI
16th July 2025
81AQI
81AQI
17th July 2025
41AQI
41AQI
18th July 2025
28AQI
28AQI
19th July 2025
30AQI
30AQI
20th July 2025
28AQI
28AQI
21st July 2025
43AQI
43AQI
22nd July 2025
24AQI
24AQI
23rd July 2025
24AQI
24AQI
24th July 2025
43AQI
43AQI
25th July 2025
32AQI
32AQI
26th July 2025
50AQI
50AQI
27th July 2025
31AQI
31AQI
28th July 2025
38AQI
38AQI
29th July 2025
30AQI
30AQI
30th July 2025
42AQI
42AQI
31st July 2025
100AQI
100AQI
1st August 2025
78AQI
78AQI
2nd August 2025
34AQI
34AQI
3rd August 2025
69AQI
69AQI
4th August 2025
120AQI
120AQI
5th August 2025
104AQI
104AQI
6th August 2025
81AQI
81AQI
7th August 2025
72AQI
72AQI
8th August 2025
64AQI
64AQI
9th August 2025
52AQI
52AQI
10th August 2025
60AQI
60AQI
11th August 2025
57AQI
57AQI
12th August 2025
51AQI
51AQI
13th August 2025
34AQI
34AQI
14th August 2025
65AQI
65AQI
15th August 2025
78AQI
78AQI
16th August 2025
66AQI
66AQI
17th August 2025
39AQI
39AQI
18th August 2025
16AQI
16AQI
19th August 2025
22AQI
22AQI
20th August 2025
19AQI
19AQI
21st August 2025
18AQI
18AQI
22nd August 2025
22AQI
22AQI
23rd August 2025
32AQI
32AQI
24th August 2025
25AQI
25AQI
25th August 2025
16AQI
16AQI
26th August 2025
19AQI
19AQI
27th August 2025
23AQI
23AQI
28th August 2025
30AQI
30AQI
29th August 2025
19AQI
19AQI
30th August 2025
21AQI
21AQI
31st August 2025
33AQI
33AQI
1st September 2025
30AQI
30AQI
2nd September 2025
28AQI
28AQI
3rd September 2025
32AQI
32AQI
4th September 2025
30AQI
30AQI
5th September 2025
41AQI
41AQI
6th September 2025
20AQI
20AQI
7th September 2025
21AQI
21AQI
8th September 2025
22AQI
22AQI
9th September 2025
23AQI
23AQI
10th September 2025
33AQI
33AQI
11th September 2025
43AQI
43AQI
12th September 2025
43AQI
43AQI
13th September 2025
53AQI
53AQI
14th September 2025
59AQI
59AQI
15th September 2025
52AQI
52AQI
16th September 2025
43AQI
43AQI
17th September 2025
43AQI
43AQI
18th September 2025
49AQI
49AQI
19th September 2025
41AQI
41AQI
20th September 2025
23AQI
23AQI
21st September 2025
25AQI
25AQI
22nd September 2025
38AQI
38AQI
23rd September 2025
35AQI
35AQI
24th September 2025
35AQI
35AQI
25th September 2025
29AQI
29AQI
26th September 2025
29AQI
29AQI
27th September 2025
26AQI
26AQI
28th September 2025
27AQI
27AQI
29th September 2025
26AQI
26AQI
30th September 2025
30AQI
30AQI
1st October 2025
31AQI
31AQI
2nd October 2025
36AQI
36AQI
3rd October 2025
55AQI
55AQI
4th October 2025
54AQI
54AQI
5th October 2025
55AQI
55AQI
6th October 2025
46AQI
46AQI
7th October 2025
19AQI
19AQI
8th October 2025
23AQI
23AQI
9th October 2025
33AQI
33AQI
10th October 2025
42AQI
42AQI
11th October 2025
34AQI
34AQI
12th October 2025
50AQI
50AQI
13th October 2025
48AQI
48AQI
14th October 2025
38AQI
38AQI
15th October 2025
20AQI
20AQI
16th October 2025
32AQI
32AQI
17th October 2025
42AQI
42AQI
18th October 2025
46AQI
46AQI
19th October 2025
41AQI
41AQI
20th October 2025
23AQI
23AQI
21st October 2025
24AQI
24AQI
22nd October 2025
15AQI
15AQI
23rd October 2025
18AQI
18AQI
24th October 2025
18AQI
18AQI
25th October 2025
16AQI
16AQI
26th October 2025
21AQI
21AQI
27th October 2025
22AQI
22AQI
28th October 2025
20AQI
20AQI
29th October 2025
24AQI
24AQI
30th October 2025
23AQI
23AQI
31st October 2025
17AQI
17AQI
1st November 2025
35AQI
35AQI
2nd November 2025
46AQI
46AQI
3rd November 2025
33AQI
33AQI
4th November 2025
19AQI
19AQI
5th November 2025
30AQI
30AQI
6th November 2025
22AQI
22AQI
7th November 2025
33AQI
33AQI
8th November 2025
27AQI
27AQI
9th November 2025
20AQI
20AQI
10th November 2025
16AQI
16AQI
11th November 2025
20AQI
20AQI
12th November 2025
26AQI
26AQI
13th November 2025
20AQI
20AQI
14th November 2025
38AQI
38AQI
15th November 2025
55AQI
55AQI
16th November 2025
18AQI
18AQI
17th November 2025
18AQI
18AQI
18th November 2025
38AQI
38AQI
19th November 2025
31AQI
31AQI
20th November 2025
40AQI
40AQI
21st November 2025
60AQI
60AQI
22nd November 2025
30AQI
30AQI
23rd November 2025
33AQI
33AQI
24th November 2025
40AQI
40AQI
25th November 2025
43AQI
43AQI
26th November 2025
38AQI
38AQI
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025
32AQI
36AQI
28AQI
24AQI
21AQI
48AQI
45AQI
46AQI
34AQI
32AQI
32AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202535AQI
28
3
25
3
31
30
31
18
12
23
8
17
12
2
27
3
28
3
24
2
282
46
2
Highest AQI recorded in
June48AQI
Lowest AQI recorded in
May21AQI
202433AQI
26
5
24
5
31
30
31
29
31
29
2
30
29
2
28
2
30
1
348
17
Highest AQI recorded in
February37AQI
Lowest AQI recorded in
November28AQI
202340AQI
27
4
25
3
27
4
26
4
28
3
8
16
4
1
1
24
7
19
12
29
1
31
26
3
24
7
294
64
4
1
1
Highest AQI recorded in
June75AQI
Lowest AQI recorded in
October30AQI
202234AQI
29
2
21
30
1
29
1
29
2
20
10
21
3
1
24
5
30
1
27
3
29
2
290
30
Highest AQI recorded in
June47AQI
Lowest AQI recorded in
August28AQI
202135AQI
27
3
25
3
29
2
27
3
29
2
27
3
25
6
23
8
27
3
29
2
30
31
329
35
Highest AQI recorded in
August43AQI
Lowest AQI recorded in
November27AQI
202034AQI
15
18
23
7
27
4
27
4
25
5
29
2
25
5
25
6
214
33
Highest AQI recorded in
June39AQI
Lowest AQI recorded in
October28AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
40AQILeast Polluted Year Recorded
2024(Avg.)
33AQIChatham's annual 2025 AQI (35) shows an average percentage change of -1.7% (improved AQI) compared to previous years: 2020 (34), 2021 (35), 2022 (34), 2023 (40), 2024 (33).
