Dorchester, Boston, Massachusetts, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
August Air Quality Analysis
Dorchester, Boston, Massachusetts, United States
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
5th Aug 2025
80AQILowest AQI recorded on
2nd Aug 2025
33AQISame Day Analysis (12th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 64 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 12th Aug - 13th Aug 2025
Dorchester, Boston, Massachusetts, United States
AQI
Day
Night
.
5 AM12th Aug 2025
8 PM
4 AM13th Aug 2025
Day time
Avg. Highest Time
4PM12th Aug
68AQI
Avg. Lowest Time
5AM12th Aug
62AQI
Night time
Avg. Highest Time
8PM12th Aug
64AQI
Avg. Lowest Time
4AM13th Aug
54AQI
In the last 24 hours,
Dorchester's AQI reached its highest point of 68 at 4 PM during the Day, while the lowest point, 54, was recorded at 4 AM during the Night between 12th Aug and 13th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Dorchester, Boston, Massachusetts, United States
JulAug
14th - 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 - 11th11th - 12th12th - 13th13th
Day
Night
14th Jul 2025255 AMAQI
14th Jul 2025276 AMAQI
14th Jul 2025267 AMAQI
14th Jul 2025268 AMAQI
14th Jul 2025249 AMAQI
14th Jul 20252410 AMAQI
14th Jul 20252511 AMAQI
14th Jul 20252412 PMAQI
14th Jul 2025271 PMAQI
14th Jul 2025282 PMAQI
14th Jul 2025283 PMAQI
14th Jul 2025284 PMAQI
14th Jul 2025285 PMAQI
14th Jul 2025296 PMAQI
14th Jul 2025287 PMAQI
14th Jul 2025278 PMAQI
14th Jul 2025309 PMAQI
14th Jul 20253010 PMAQI
14th Jul 20253011 PMAQI
15th Jul 20253012 AMAQI
15th Jul 2025281 AMAQI
15th Jul 2025262 AMAQI
15th Jul 2025303 AMAQI
15th Jul 2025344 AMAQI
--°C/°C
15th Jul 2025315 AMAQI
15th Jul 2025276 AMAQI
15th Jul 2025257 AMAQI
15th Jul 2025248 AMAQI
15th Jul 2025259 AMAQI
15th Jul 20252410 AMAQI
15th Jul 20252811 AMAQI
15th Jul 20253212 PMAQI
15th Jul 2025321 PMAQI
15th Jul 2025342 PMAQI
15th Jul 2025323 PMAQI
15th Jul 2025334 PMAQI
15th Jul 2025345 PMAQI
15th Jul 2025316 PMAQI
15th Jul 2025317 PMAQI
15th Jul 2025308 PMAQI
15th Jul 2025309 PMAQI
15th Jul 20252810 PMAQI
15th Jul 20252811 PMAQI
16th Jul 20252812 AMAQI
16th Jul 2025281 AMAQI
16th Jul 2025262 AMAQI
16th Jul 2025283 AMAQI
16th Jul 2025284 AMAQI
27°C22/34°C
16th Jul 2025285 AMAQI
16th Jul 2025296 AMAQI
16th Jul 2025317 AMAQI
16th Jul 2025338 AMAQI
16th Jul 2025349 AMAQI
16th Jul 20254410 AMAQI
16th Jul 20255211 AMAQI
16th Jul 20255012 PMAQI
16th Jul 2025461 PMAQI
16th Jul 2025442 PMAQI
16th Jul 2025433 PMAQI
16th Jul 2025424 PMAQI
16th Jul 2025425 PMAQI
16th Jul 2025406 PMAQI
16th Jul 2025387 PMAQI
16th Jul 2025398 PMAQI
16th Jul 2025399 PMAQI
16th Jul 20254010 PMAQI
16th Jul 20254011 PMAQI
17th Jul 20253812 AMAQI
17th Jul 2025361 AMAQI
17th Jul 2025362 AMAQI
17th Jul 2025403 AMAQI
17th Jul 2025424 AMAQI
27°C22/33°C
17th Jul 2025435 AMAQI
17th Jul 2025446 AMAQI
17th Jul 2025447 AMAQI
17th Jul 2025458 AMAQI
17th Jul 2025459 AMAQI
17th Jul 20255110 AMAQI
17th Jul 20254811 AMAQI
17th Jul 20254512 PMAQI
17th Jul 2025381 PMAQI
17th Jul 2025342 PMAQI
17th Jul 2025343 PMAQI
17th Jul 2025344 PMAQI
17th Jul 2025335 PMAQI
17th Jul 2025336 PMAQI
17th Jul 2025377 PMAQI
17th Jul 2025388 PMAQI
17th Jul 2025389 PMAQI
17th Jul 20254010 PMAQI
17th Jul 20254111 PMAQI
18th Jul 20254012 AMAQI
18th Jul 2025381 AMAQI
18th Jul 2025222 AMAQI
18th Jul 2025223 AMAQI
18th Jul 2025194 AMAQI
26°C23/32°C
18th Jul 2025205 AMAQI
18th Jul 2025216 AMAQI
18th Jul 2025207 AMAQI
18th Jul 2025188 AMAQI
18th Jul 2025189 AMAQI
18th Jul 20251610 AMAQI
18th Jul 20251511 AMAQI
18th Jul 20251612 PMAQI
18th Jul 2025141 PMAQI
18th Jul 2025172 PMAQI
18th Jul 2025183 PMAQI
18th Jul 2025194 PMAQI
18th Jul 2025195 PMAQI
18th Jul 2025216 PMAQI
18th Jul 2025207 PMAQI
18th Jul 2025208 PMAQI
18th Jul 2025219 PMAQI
18th Jul 20252110 PMAQI
18th Jul 20252211 PMAQI
19th Jul 20252112 AMAQI
19th Jul 2025211 AMAQI
19th Jul 2025282 AMAQI
19th Jul 2025313 AMAQI
19th Jul 2025324 AMAQI
25°C20/29°C
19th Jul 2025325 AMAQI
19th Jul 2025326 AMAQI
19th Jul 2025327 AMAQI
19th Jul 2025338 AMAQI
19th Jul 2025339 AMAQI
19th Jul 20253710 AMAQI
19th Jul 20253711 AMAQI
19th Jul 20253812 PMAQI
19th Jul 2025361 PMAQI
19th Jul 2025342 PMAQI
19th Jul 2025313 PMAQI
19th Jul 2025324 PMAQI
19th Jul 2025315 PMAQI
19th Jul 2025296 PMAQI
19th Jul 2025307 PMAQI
19th Jul 2025318 PMAQI
19th Jul 2025269 PMAQI
19th Jul 20252510 PMAQI
19th Jul 20252511 PMAQI
20th Jul 20252412 AMAQI
20th Jul 2025241 AMAQI
20th Jul 2025172 AMAQI
20th Jul 2025173 AMAQI
20th Jul 2025164 AMAQI
24°C17/30°C
20th Jul 2025165 AMAQI
20th Jul 2025176 AMAQI
20th Jul 2025187 AMAQI
20th Jul 2025188 AMAQI
20th Jul 2025189 AMAQI
20th Jul 20251910 AMAQI
20th Jul 20251911 AMAQI
20th Jul 20252012 PMAQI
20th Jul 2025191 PMAQI
20th Jul 2025212 PMAQI
20th Jul 2025213 PMAQI
20th Jul 2025224 PMAQI
20th Jul 2025225 PMAQI
20th Jul 2025226 PMAQI
20th Jul 2025227 PMAQI
20th Jul 2025238 PMAQI
20th Jul 2025279 PMAQI
20th Jul 20252510 PMAQI
20th Jul 20252511 PMAQI
21st Jul 20252612 AMAQI
21st Jul 2025241 AMAQI
21st Jul 2025182 AMAQI
21st Jul 2025203 AMAQI
21st Jul 2025204 AMAQI
25°C20/32°C
21st Jul 2025245 AMAQI
21st Jul 2025306 AMAQI
21st Jul 2025347 AMAQI
21st Jul 2025418 AMAQI
21st Jul 2025499 AMAQI
21st Jul 20255210 AMAQI
21st Jul 20255411 AMAQI
21st Jul 20255412 PMAQI
21st Jul 2025531 PMAQI
21st Jul 2025482 PMAQI
21st Jul 2025483 PMAQI
21st Jul 2025394 PMAQI
21st Jul 2025315 PMAQI
21st Jul 2025266 PMAQI
21st Jul 2025277 PMAQI
21st Jul 2025268 PMAQI
21st Jul 2025219 PMAQI
21st Jul 20252110 PMAQI
21st Jul 20252211 PMAQI
22nd Jul 20252212 AMAQI
22nd Jul 2025221 AMAQI
22nd Jul 2025182 AMAQI
22nd Jul 2025183 AMAQI
22nd Jul 2025184 AMAQI
23°C19/27°C
22nd Jul 2025175 AMAQI
22nd Jul 2025186 AMAQI
22nd Jul 2025197 AMAQI
22nd Jul 2025198 AMAQI
22nd Jul 2025209 AMAQI
22nd Jul 20251910 AMAQI
22nd Jul 20251911 AMAQI
22nd Jul 20251812 PMAQI
22nd Jul 2025181 PMAQI
22nd Jul 2025182 PMAQI
22nd Jul 2025183 PMAQI
22nd Jul 2025184 PMAQI
22nd Jul 2025185 PMAQI
22nd Jul 2025186 PMAQI
22nd Jul 2025197 PMAQI
22nd Jul 2025208 PMAQI
22nd Jul 2025229 PMAQI
22nd Jul 20252210 PMAQI
22nd Jul 20252211 PMAQI
23rd Jul 20252112 AMAQI
23rd Jul 2025201 AMAQI
23rd Jul 2025192 AMAQI
23rd Jul 2025203 AMAQI
23rd Jul 2025224 AMAQI
21°C15/27°C
23rd Jul 2025225 AMAQI
23rd Jul 2025226 AMAQI
23rd Jul 2025227 AMAQI
23rd Jul 2025268 AMAQI
23rd Jul 2025279 AMAQI
23rd Jul 20252810 AMAQI
23rd Jul 20253111 AMAQI
23rd Jul 20253012 PMAQI
23rd Jul 2025321 PMAQI
23rd Jul 2025302 PMAQI
23rd Jul 2025283 PMAQI
23rd Jul 2025274 PMAQI
23rd Jul 2025285 PMAQI
23rd Jul 2025286 PMAQI
23rd Jul 2025277 PMAQI
23rd Jul 2025288 PMAQI
23rd Jul 2025269 PMAQI
23rd Jul 20252510 PMAQI
23rd Jul 20252511 PMAQI
24th Jul 20252512 AMAQI
24th Jul 2025251 AMAQI
24th Jul 2025202 AMAQI
24th Jul 2025243 AMAQI
24th Jul 2025234 AMAQI
23°C18/28°C
24th Jul 2025225 AMAQI
24th Jul 2025246 AMAQI
24th Jul 2025247 AMAQI
24th Jul 2025248 AMAQI
24th Jul 2025249 AMAQI
24th Jul 20252610 AMAQI
24th Jul 20253111 AMAQI
24th Jul 20253512 PMAQI
24th Jul 2025421 PMAQI
24th Jul 2025422 PMAQI
24th Jul 2025423 PMAQI
24th Jul 2025444 PMAQI
24th Jul 2025455 PMAQI
24th Jul 2025426 PMAQI
24th Jul 2025317 PMAQI
24th Jul 2025308 PMAQI
24th Jul 2025349 PMAQI
24th Jul 20253210 PMAQI
24th Jul 20253211 PMAQI
25th Jul 20253212 AMAQI
25th Jul 2025301 AMAQI
25th Jul 2025272 AMAQI
25th Jul 2025283 AMAQI
25th Jul 2025324 AMAQI
26°C19/33°C
25th Jul 2025345 AMAQI
25th Jul 2025366 AMAQI
25th Jul 2025417 AMAQI
25th Jul 2025458 AMAQI
25th Jul 2025519 AMAQI
25th Jul 20255010 AMAQI
25th Jul 20255211 AMAQI
25th Jul 20255212 PMAQI
25th Jul 2025541 PMAQI
25th Jul 2025542 PMAQI
25th Jul 2025523 PMAQI
25th Jul 2025474 PMAQI
25th Jul 2025485 PMAQI
25th Jul 2025466 PMAQI
25th Jul 2025447 PMAQI
25th Jul 2025408 PMAQI
25th Jul 2025309 PMAQI
25th Jul 20253010 PMAQI
25th Jul 20253011 PMAQI
26th Jul 20253112 AMAQI
26th Jul 2025311 AMAQI
26th Jul 2025542 AMAQI
26th Jul 2025563 AMAQI
26th Jul 2025674 AMAQI
27°C22/35°C
26th Jul 20251045 AMAQI
26th Jul 20251296 AMAQI
26th Jul 20251327 AMAQI
26th Jul 20251258 AMAQI
26th Jul 20251229 AMAQI
26th Jul 202510610 AMAQI
26th Jul 202510411 AMAQI
26th Jul 20258812 PMAQI
26th Jul 2025821 PMAQI
26th Jul 2025802 PMAQI
26th Jul 2025793 PMAQI
26th Jul 2025714 PMAQI
26th Jul 2025655 PMAQI
26th Jul 2025746 PMAQI
26th Jul 2025667 PMAQI
26th Jul 2025668 PMAQI
26th Jul 2025669 PMAQI
26th Jul 20256910 PMAQI
26th Jul 20257111 PMAQI
27th Jul 20257212 AMAQI
27th Jul 2025751 AMAQI
27th Jul 2025822 AMAQI
27th Jul 2025863 AMAQI
27th Jul 2025864 AMAQI
25°C21/29°C
27th Jul 2025865 AMAQI
27th Jul 2025806 AMAQI
27th Jul 2025807 AMAQI
27th Jul 2025778 AMAQI
27th Jul 2025769 AMAQI
27th Jul 20257810 AMAQI
27th Jul 20257611 AMAQI
27th Jul 20258312 PMAQI
27th Jul 2025831 PMAQI
27th Jul 2025842 PMAQI
27th Jul 2025843 PMAQI
27th Jul 2025844 PMAQI
27th Jul 2025835 PMAQI
27th Jul 2025826 PMAQI
27th Jul 2025797 PMAQI
27th Jul 2025778 PMAQI
27th Jul 2025769 PMAQI
27th Jul 20257810 PMAQI
27th Jul 20257811 PMAQI
28th Jul 20257812 AMAQI
28th Jul 2025791 AMAQI
28th Jul 2025802 AMAQI
28th Jul 2025843 AMAQI
28th Jul 2025844 AMAQI
22°C19/25°C
28th Jul 2025795 AMAQI
28th Jul 2025766 AMAQI
28th Jul 2025737 AMAQI
28th Jul 2025738 AMAQI
28th Jul 2025729 AMAQI
28th Jul 20257110 AMAQI
28th Jul 20257111 AMAQI
28th Jul 20256812 PMAQI
28th Jul 2025651 PMAQI
28th Jul 2025652 PMAQI
28th Jul 2025673 PMAQI
28th Jul 2025664 PMAQI
28th Jul 2025675 PMAQI
28th Jul 2025666 PMAQI
28th Jul 2025687 PMAQI
28th Jul 2025668 PMAQI
28th Jul 2025629 PMAQI
28th Jul 20256410 PMAQI
28th Jul 20256411 PMAQI
29th Jul 20256312 AMAQI
29th Jul 2025641 AMAQI
29th Jul 2025602 AMAQI
29th Jul 2025603 AMAQI
29th Jul 2025604 AMAQI
25°C20/32°C
29th Jul 2025605 AMAQI
29th Jul 2025626 AMAQI
29th Jul 2025627 AMAQI
29th Jul 2025638 AMAQI
29th Jul 2025629 AMAQI
29th Jul 20256210 AMAQI
29th Jul 20256211 AMAQI
29th Jul 20256212 PMAQI
29th Jul 2025621 PMAQI
29th Jul 2025612 PMAQI
29th Jul 2025613 PMAQI
29th Jul 2025614 PMAQI
29th Jul 2025615 PMAQI
29th Jul 2025606 PMAQI
29th Jul 2025617 PMAQI
29th Jul 2025608 PMAQI
29th Jul 2025589 PMAQI
29th Jul 20255810 PMAQI
29th Jul 20255811 PMAQI
30th Jul 20255812 AMAQI
30th Jul 2025581 AMAQI
30th Jul 2025582 AMAQI
30th Jul 2025583 AMAQI
30th Jul 2025564 AMAQI
30°C23/37°C
30th Jul 2025525 AMAQI
30th Jul 2025516 AMAQI
30th Jul 2025527 AMAQI
30th Jul 2025538 AMAQI
30th Jul 2025539 AMAQI
30th Jul 20255410 AMAQI
30th Jul 20255411 AMAQI
30th Jul 20255512 PMAQI
30th Jul 2025561 PMAQI
30th Jul 2025562 PMAQI
30th Jul 2025563 PMAQI
30th Jul 2025564 PMAQI
30th Jul 2025565 PMAQI
30th Jul 2025566 PMAQI
30th Jul 2025567 PMAQI
30th Jul 2025568 PMAQI
30th Jul 2025559 PMAQI
30th Jul 20255510 PMAQI
30th Jul 20255411 PMAQI
31st Jul 20255612 AMAQI
31st Jul 2025541 AMAQI
31st Jul 2025452 AMAQI
31st Jul 2025463 AMAQI
31st Jul 2025474 AMAQI
27°C24/30°C
31st Jul 2025515 AMAQI
31st Jul 2025546 AMAQI
31st Jul 2025597 AMAQI
31st Jul 2025638 AMAQI
31st Jul 2025669 AMAQI
31st Jul 20257110 AMAQI
31st Jul 20257811 AMAQI
31st Jul 20258812 PMAQI
31st Jul 2025881 PMAQI
31st Jul 2025902 PMAQI
31st Jul 2025913 PMAQI
31st Jul 2025914 PMAQI
31st Jul 2025945 PMAQI
31st Jul 2025916 PMAQI
31st Jul 2025677 PMAQI
31st Jul 2025728 PMAQI
31st Jul 2025819 PMAQI
31st Jul 20258310 PMAQI
31st Jul 20257111 PMAQI
1st Aug 20256512 AMAQI
1st Aug 2025601 AMAQI
1st Aug 2025672 AMAQI
1st Aug 2025703 AMAQI
1st Aug 2025744 AMAQI
23°C18/25°C
1st Aug 2025735 AMAQI
1st Aug 2025726 AMAQI
1st Aug 2025717 AMAQI
1st Aug 2025708 AMAQI
1st Aug 2025689 AMAQI
1st Aug 20257010 AMAQI
1st Aug 20256811 AMAQI
1st Aug 20256712 PMAQI
1st Aug 2025661 PMAQI
1st Aug 2025642 PMAQI
1st Aug 2025623 PMAQI
1st Aug 2025594 PMAQI
1st Aug 2025565 PMAQI
1st Aug 2025456 PMAQI
1st Aug 2025697 PMAQI
1st Aug 2025508 PMAQI
1st Aug 2025309 PMAQI
1st Aug 20253210 PMAQI
1st Aug 20253611 PMAQI
2nd Aug 20254412 AMAQI
2nd Aug 2025421 AMAQI
2nd Aug 2025392 AMAQI
2nd Aug 2025313 AMAQI
2nd Aug 2025324 AMAQI
19°C16/22°C
2nd Aug 2025335 AMAQI
2nd Aug 2025336 AMAQI
2nd Aug 2025327 AMAQI
2nd Aug 2025318 AMAQI
2nd Aug 2025309 AMAQI
2nd Aug 20252710 AMAQI
2nd Aug 20252611 AMAQI
2nd Aug 20252612 PMAQI
2nd Aug 2025281 PMAQI
2nd Aug 2025282 PMAQI
2nd Aug 2025283 PMAQI
2nd Aug 2025284 PMAQI
2nd Aug 2025285 PMAQI
2nd Aug 2025306 PMAQI
2nd Aug 2025327 PMAQI
2nd Aug 2025348 PMAQI
2nd Aug 2025409 PMAQI
2nd Aug 20253910 PMAQI
2nd Aug 20254011 PMAQI
3rd Aug 20253812 AMAQI
3rd Aug 2025411 AMAQI
3rd Aug 2025402 AMAQI
3rd Aug 2025383 AMAQI
3rd Aug 2025364 AMAQI
20°C14/26°C
3rd Aug 2025385 AMAQI
3rd Aug 2025376 AMAQI
3rd Aug 2025377 AMAQI
3rd Aug 2025448 AMAQI
3rd Aug 2025549 AMAQI
3rd Aug 20255910 AMAQI
3rd Aug 20256611 AMAQI
3rd Aug 20257112 PMAQI
3rd Aug 2025761 PMAQI
3rd Aug 2025812 PMAQI
3rd Aug 2025853 PMAQI
3rd Aug 2025904 PMAQI
3rd Aug 2025865 PMAQI
3rd Aug 2025846 PMAQI
3rd Aug 2025547 PMAQI
3rd Aug 2025608 PMAQI
3rd Aug 2025619 PMAQI
3rd Aug 20255610 PMAQI
3rd Aug 20255511 PMAQI
4th Aug 20255412 AMAQI
4th Aug 2025541 AMAQI
4th Aug 2025552 AMAQI
4th Aug 2025383 AMAQI
4th Aug 2025414 AMAQI
23°C15/30°C
4th Aug 2025435 AMAQI
4th Aug 2025516 AMAQI
4th Aug 2025567 AMAQI
4th Aug 2025588 AMAQI
4th Aug 2025649 AMAQI
4th Aug 20257210 AMAQI
4th Aug 20257911 AMAQI
4th Aug 20259012 PMAQI
4th Aug 20251091 PMAQI
4th Aug 20251162 PMAQI
4th Aug 20251173 PMAQI
4th Aug 20251244 PMAQI
4th Aug 20251085 PMAQI
4th Aug 20251056 PMAQI
4th Aug 2025667 PMAQI
4th Aug 2025888 PMAQI
4th Aug 20251039 PMAQI
4th Aug 202510410 PMAQI
4th Aug 202510311 PMAQI
5th Aug 20259612 AMAQI
5th Aug 20251001 AMAQI
5th Aug 2025782 AMAQI
5th Aug 2025793 AMAQI
5th Aug 2025814 AMAQI
24°C17/31°C
5th Aug 2025865 AMAQI
5th Aug 2025996 AMAQI
5th Aug 20251077 AMAQI
5th Aug 20251248 AMAQI
5th Aug 20251229 AMAQI
5th Aug 202511910 AMAQI
5th Aug 202511311 AMAQI
5th Aug 202510112 PMAQI
5th Aug 2025801 PMAQI
5th Aug 2025722 PMAQI
5th Aug 2025643 PMAQI
5th Aug 2025604 PMAQI
5th Aug 2025565 PMAQI
5th Aug 2025526 PMAQI
5th Aug 2025847 PMAQI
5th Aug 2025678 PMAQI
5th Aug 2025489 PMAQI
5th Aug 20254910 PMAQI
5th Aug 20255211 PMAQI
6th Aug 20254912 AMAQI
6th Aug 2025441 AMAQI
6th Aug 2025472 AMAQI
6th Aug 2025523 AMAQI
6th Aug 2025544 AMAQI
21°C19/22°C
6th Aug 2025535 AMAQI
6th Aug 2025536 AMAQI
6th Aug 2025547 AMAQI
6th Aug 2025558 AMAQI
6th Aug 2025559 AMAQI
6th Aug 20255510 AMAQI
6th Aug 20255511 AMAQI
6th Aug 20255412 PMAQI
6th Aug 2025531 PMAQI
6th Aug 2025482 PMAQI
6th Aug 2025423 PMAQI
6th Aug 2025354 PMAQI
6th Aug 2025365 PMAQI
6th Aug 2025386 PMAQI
6th Aug 2025527 PMAQI
6th Aug 2025558 PMAQI
6th Aug 2025609 PMAQI
6th Aug 20256810 PMAQI
6th Aug 20255711 PMAQI
7th Aug 20255612 AMAQI
7th Aug 2025791 AMAQI
7th Aug 2025802 AMAQI
7th Aug 2025783 AMAQI
7th Aug 2025744 AMAQI
20°C17/24°C
7th Aug 2025715 AMAQI
7th Aug 2025696 AMAQI
7th Aug 2025737 AMAQI
7th Aug 2025728 AMAQI
7th Aug 2025749 AMAQI
7th Aug 20257210 AMAQI
7th Aug 20256211 AMAQI
7th Aug 20255812 PMAQI
7th Aug 2025561 PMAQI
7th Aug 2025562 PMAQI
7th Aug 2025593 PMAQI
7th Aug 2025584 PMAQI
7th Aug 2025595 PMAQI
7th Aug 2025586 PMAQI
7th Aug 2025627 PMAQI
7th Aug 2025648 PMAQI
7th Aug 2025579 PMAQI
7th Aug 20255610 PMAQI
7th Aug 20255611 PMAQI
8th Aug 20255612 AMAQI
8th Aug 2025391 AMAQI
8th Aug 2025322 AMAQI
8th Aug 2025313 AMAQI
8th Aug 2025324 AMAQI
22°C16/26°C
8th Aug 2025325 AMAQI
8th Aug 2025326 AMAQI
8th Aug 2025367 AMAQI
8th Aug 2025358 AMAQI
8th Aug 2025349 AMAQI
8th Aug 20253610 AMAQI
8th Aug 20253611 AMAQI
8th Aug 20253512 PMAQI
8th Aug 2025361 PMAQI
8th Aug 2025372 PMAQI
8th Aug 2025373 PMAQI
8th Aug 2025384 PMAQI
8th Aug 2025375 PMAQI
8th Aug 2025376 PMAQI
8th Aug 2025377 PMAQI
8th Aug 2025388 PMAQI
8th Aug 2025389 PMAQI
8th Aug 20253810 PMAQI
8th Aug 20253711 PMAQI
9th Aug 20253712 AMAQI
9th Aug 2025361 AMAQI
9th Aug 2025352 AMAQI
9th Aug 2025343 AMAQI
9th Aug 2025354 AMAQI
23°C17/29°C
9th Aug 2025355 AMAQI
9th Aug 2025346 AMAQI
9th Aug 2025347 AMAQI
9th Aug 2025348 AMAQI
9th Aug 2025339 AMAQI
9th Aug 20253310 AMAQI
9th Aug 20253411 AMAQI
9th Aug 20253712 PMAQI
9th Aug 2025391 PMAQI
9th Aug 2025372 PMAQI
9th Aug 2025363 PMAQI
9th Aug 2025344 PMAQI
9th Aug 2025345 PMAQI
9th Aug 2025356 PMAQI
9th Aug 2025367 PMAQI
9th Aug 2025348 PMAQI
9th Aug 2025349 PMAQI
9th Aug 20253510 PMAQI
9th Aug 20253511 PMAQI
10th Aug 20253512 AMAQI
10th Aug 2025321 AMAQI
10th Aug 2025332 AMAQI
10th Aug 2025323 AMAQI
10th Aug 2025324 AMAQI
21°C17/26°C
10th Aug 2025305 AMAQI
10th Aug 2025316 AMAQI
10th Aug 2025317 AMAQI
10th Aug 2025328 AMAQI
10th Aug 2025329 AMAQI
10th Aug 20253610 AMAQI
10th Aug 20254011 AMAQI
10th Aug 20254812 PMAQI
10th Aug 2025511 PMAQI
10th Aug 2025482 PMAQI
10th Aug 2025463 PMAQI
10th Aug 2025474 PMAQI
10th Aug 2025485 PMAQI
10th Aug 2025486 PMAQI
10th Aug 2025407 PMAQI
10th Aug 2025388 PMAQI
10th Aug 2025469 PMAQI
10th Aug 20254210 PMAQI
10th Aug 20254011 PMAQI
11th Aug 20254012 AMAQI
11th Aug 2025351 AMAQI
11th Aug 2025362 AMAQI
11th Aug 2025393 AMAQI
11th Aug 2025424 AMAQI
25°C19/33°C
11th Aug 2025485 AMAQI
11th Aug 2025516 AMAQI
11th Aug 2025537 AMAQI
11th Aug 2025568 AMAQI
11th Aug 2025589 AMAQI
11th Aug 20255910 AMAQI
11th Aug 20255911 AMAQI
11th Aug 20256112 PMAQI
11th Aug 2025621 PMAQI
11th Aug 2025622 PMAQI
11th Aug 2025583 PMAQI
11th Aug 2025524 PMAQI
11th Aug 2025565 PMAQI
11th Aug 2025626 PMAQI
11th Aug 2025547 PMAQI
11th Aug 2025588 PMAQI
11th Aug 2025629 PMAQI
11th Aug 20256310 PMAQI
11th Aug 20256211 PMAQI
12th Aug 20256212 AMAQI
12th Aug 2025631 AMAQI
12th Aug 2025612 AMAQI
12th Aug 2025613 AMAQI
12th Aug 2025664 AMAQI
29°C22/36°C
12th Aug 2025625 AMAQI
12th Aug 2025666 AMAQI
12th Aug 2025637 AMAQI
12th Aug 2025678 AMAQI
12th Aug 2025639 AMAQI
12th Aug 20256610 AMAQI
12th Aug 20256611 AMAQI
12th Aug 20256612 PMAQI
12th Aug 2025641 PMAQI
12th Aug 2025662 PMAQI
12th Aug 2025663 PMAQI
12th Aug 2025684 PMAQI
12th Aug 2025655 PMAQI
12th Aug 2025666 PMAQI
12th Aug 2025637 PMAQI
12th Aug 2025648 PMAQI
12th Aug 2025639 PMAQI
12th Aug 20256310 PMAQI
12th Aug 20256011 PMAQI
13th Aug 20255912 AMAQI
13th Aug 2025581 AMAQI
13th Aug 2025572 AMAQI
13th Aug 2025553 AMAQI
13th Aug 2025544 AMAQI
29°C22/35°C
13th Aug 2025545 AMAQI
5 AM13th Aug 2025536 AMAQI
13th Aug 2025527 AMAQI
13th Aug 2025528 AMAQI
13th Aug 2025529 AMAQI
13th Aug 20255310 AMAQI
13th Aug 20255411 AMAQI
13th Aug 20255212 PMAQI
12 PM13th Aug 2025531 PMAQI
13th Aug 2025542 PMAQI
13th Aug 2025543 PMAQI
13th Aug 2025544 PMAQI
13th Aug 2025555 PMAQI
13th Aug 2025526 PMAQI
13th Aug 2025547 PMAQI
8 PM
12 AM
4 AM
26°C22/32°C
Day time
Avg. Highest Time
5 AM - 8 PM
50AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM
50AQI
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. 50), while the lowest AQI was between 5 AM to 8 PM (Avg. 50).
Night time
Avg. Highest Time
12 AM - 11 PM
45AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
45AQI
8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 45), while the lowest AQI was between 12 AM to 11 PM (Avg. 45).
2025 Days Vs Air Quality
Dorchester, Boston, Massachusetts, United States
2025
77%
107
23%
32
Total number of days with different AQI categories in last 226 days in 2025 (139 days remaining)
Good
107 DaysModerate
32 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 77%
Health Risk Level:
Low
In 2025, 77% of 226 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
Dorchester, Boston, Massachusetts, United States
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 March 2025
18AQI
18AQI
2nd March 2025
20AQI
20AQI
3rd March 2025
21AQI
21AQI
4th March 2025
22AQI
22AQI
5th March 2025
35AQI
35AQI
1st April 2025
20AQI
20AQI
2nd April 2025
18AQI
18AQI
3rd April 2025
27AQI
27AQI
4th April 2025
28AQI
28AQI
5th April 2025
21AQI
21AQI
6th April 2025
24AQI
24AQI
7th April 2025
18AQI
18AQI
8th April 2025
17AQI
17AQI
9th April 2025
15AQI
15AQI
10th April 2025
21AQI
21AQI
11th April 2025
23AQI
23AQI
12th April 2025
19AQI
19AQI
13th April 2025
16AQI
16AQI
14th April 2025
22AQI
22AQI
15th April 2025
35AQI
35AQI
16th April 2025
13AQI
13AQI
17th April 2025
15AQI
15AQI
18th April 2025
21AQI
21AQI
19th April 2025
52AQI
52AQI
20th April 2025
22AQI
22AQI
21st April 2025
17AQI
17AQI
22nd April 2025
44AQI
44AQI
23rd April 2025
27AQI
27AQI
24th April 2025
22AQI
22AQI
25th April 2025
56AQI
56AQI
26th April 2025
33AQI
33AQI
27th April 2025
12AQI
12AQI
28th April 2025
20AQI
20AQI
29th April 2025
29AQI
29AQI
30th April 2025
25AQI
25AQI
1st May 2025
18AQI
18AQI
2nd May 2025
42AQI
42AQI
3rd May 2025
49AQI
49AQI
4th May 2025
40AQI
40AQI
5th May 2025
28AQI
28AQI
6th May 2025
34AQI
34AQI
7th May 2025
30AQI
30AQI
8th May 2025
27AQI
27AQI
9th May 2025
36AQI
36AQI
10th May 2025
15AQI
15AQI
11th May 2025
22AQI
22AQI
12th May 2025
22AQI
22AQI
13th May 2025
31AQI
31AQI
14th May 2025
31AQI
31AQI
15th May 2025
42AQI
42AQI
16th May 2025
38AQI
38AQI
17th May 2025
38AQI
38AQI
18th May 2025
20AQI
20AQI
19th May 2025
12AQI
12AQI
20th May 2025
13AQI
13AQI
21st May 2025
17AQI
17AQI
22nd May 2025
22AQI
22AQI
23rd May 2025
14AQI
14AQI
24th May 2025
14AQI
14AQI
25th May 2025
13AQI
13AQI
26th May 2025
20AQI
20AQI
27th May 2025
28AQI
28AQI
28th May 2025
30AQI
30AQI
29th May 2025
24AQI
24AQI
30th May 2025
35AQI
35AQI
31st May 2025
21AQI
21AQI
1st June 2025
14AQI
14AQI
2nd June 2025
19AQI
19AQI
3rd June 2025
25AQI
25AQI
4th June 2025
40AQI
40AQI
5th June 2025
59AQI
59AQI
6th June 2025
62AQI
62AQI
7th June 2025
55AQI
55AQI
8th June 2025
89AQI
89AQI
9th June 2025
83AQI
83AQI
10th June 2025
55AQI
55AQI
11th June 2025
53AQI
53AQI
12th June 2025
71AQI
71AQI
13th June 2025
55AQI
55AQI
14th June 2025
48AQI
48AQI
15th June 2025
31AQI
31AQI
16th June 2025
35AQI
35AQI
17th June 2025
31AQI
31AQI
18th June 2025
26AQI
26AQI
19th June 2025
30AQI
30AQI
20th June 2025
36AQI
36AQI
21st June 2025
54AQI
54AQI
22nd June 2025
54AQI
54AQI
23rd June 2025
53AQI
53AQI
24th June 2025
57AQI
57AQI
25th June 2025
54AQI
54AQI
26th June 2025
40AQI
40AQI
27th June 2025
26AQI
26AQI
28th June 2025
29AQI
29AQI
29th June 2025
43AQI
43AQI
30th June 2025
42AQI
42AQI
1st July 2025
41AQI
41AQI
2nd July 2025
36AQI
36AQI
3rd July 2025
47AQI
47AQI
4th July 2025
44AQI
44AQI
5th July 2025
53AQI
53AQI
6th July 2025
61AQI
61AQI
7th July 2025
46AQI
46AQI
8th July 2025
38AQI
38AQI
9th July 2025
35AQI
35AQI
10th July 2025
31AQI
31AQI
11th July 2025
33AQI
33AQI
12th July 2025
35AQI
35AQI
13th July 2025
24AQI
24AQI
14th July 2025
26AQI
26AQI
15th July 2025
30AQI
30AQI
16th July 2025
37AQI
37AQI
17th July 2025
40AQI
40AQI
18th July 2025
21AQI
21AQI
19th July 2025
30AQI
30AQI
20th July 2025
21AQI
21AQI
21st July 2025
31AQI
31AQI
22nd July 2025
19AQI
19AQI
23rd July 2025
25AQI
25AQI
24th July 2025
30AQI
30AQI
25th July 2025
39AQI
39AQI
26th July 2025
77AQI
77AQI
27th July 2025
80AQI
80AQI
28th July 2025
71AQI
71AQI
29th July 2025
61AQI
61AQI
30th July 2025
55AQI
55AQI
31st July 2025
69AQI
69AQI
1st August 2025
60AQI
60AQI
2nd August 2025
33AQI
33AQI
3rd August 2025
56AQI
56AQI
4th August 2025
77AQI
77AQI
5th August 2025
80AQI
80AQI
6th August 2025
51AQI
51AQI
7th August 2025
65AQI
65AQI
8th August 2025
36AQI
36AQI
9th August 2025
35AQI
35AQI
10th August 2025
39AQI
39AQI
11th August 2025
53AQI
53AQI
12th August 2025
64AQI
64AQI
23AQI
24AQI
27AQI
46AQI
41AQI
54AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202536AQI
5
28
2
31
16
14
23
8
4
8
107
32
Highest AQI recorded in
August54AQI
Lowest AQI recorded in
March23AQI
Most & Least Polluted Years Over the Last 1 Years
Most Polluted Year Recorded
2025(Avg.)
36AQILeast Polluted Year Recorded
2025(Avg.)
36AQIDorchester's annual 2025 AQI (36) shows an average percentage change of NaN% (improved AQI) compared to previous years: .
