Observatory Service Rd, Milton, 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
Observatory Service Rd, Milton, Massachusetts, United States
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
5th Aug 2025
89AQILowest AQI recorded on
2nd Aug 2025
33AQISame Day Analysis (7th 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: 6th Aug - 7th Aug 2025
Observatory Service Rd, Milton, Massachusetts, United States
AQI
Day
Night
.
5 AM6th Aug 2025
8 PM
4 AM7th Aug 2025
Day time
Avg. Highest Time
2PM6th Aug
67AQI
Avg. Lowest Time
5AM6th Aug
49AQI
Night time
Avg. Highest Time
2AM7th Aug
70AQI
Avg. Lowest Time
8PM6th Aug
56AQI
In the last 24 hours,
Observatory Service Rd's AQI reached its highest point of 70 at 2 AM during the Night, while the lowest point, 49, was recorded at 5 AM during the Day between 6th Aug and 7th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Observatory Service Rd, Milton, Massachusetts, United States
JulAug
08th - 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 - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th
Day
Night
8th Jul 2025335 AMAQI
8th Jul 2025346 AMAQI
8th Jul 2025357 AMAQI
8th Jul 2025328 AMAQI
8th Jul 2025329 AMAQI
8th Jul 20253310 AMAQI
8th Jul 20253311 AMAQI
8th Jul 20253212 PMAQI
8th Jul 2025321 PMAQI
8th Jul 2025332 PMAQI
8th Jul 2025353 PMAQI
8th Jul 2025354 PMAQI
8th Jul 2025355 PMAQI
8th Jul 2025356 PMAQI
8th Jul 2025347 PMAQI
8th Jul 2025358 PMAQI
8th Jul 2025429 PMAQI
8th Jul 20253610 PMAQI
8th Jul 20253711 PMAQI
9th Jul 20253612 AMAQI
9th Jul 2025361 AMAQI
9th Jul 2025312 AMAQI
9th Jul 2025323 AMAQI
9th Jul 2025284 AMAQI
--°C/°C
9th Jul 2025255 AMAQI
9th Jul 2025286 AMAQI
9th Jul 2025287 AMAQI
9th Jul 2025288 AMAQI
9th Jul 2025259 AMAQI
9th Jul 20252610 AMAQI
9th Jul 20252411 AMAQI
9th Jul 20252612 PMAQI
9th Jul 2025251 PMAQI
9th Jul 2025292 PMAQI
9th Jul 2025303 PMAQI
9th Jul 2025324 PMAQI
9th Jul 2025335 PMAQI
9th Jul 2025326 PMAQI
9th Jul 2025327 PMAQI
9th Jul 2025328 PMAQI
9th Jul 2025329 PMAQI
9th Jul 20253310 PMAQI
9th Jul 20253311 PMAQI
10th Jul 20253312 AMAQI
10th Jul 2025341 AMAQI
10th Jul 2025352 AMAQI
10th Jul 2025323 AMAQI
10th Jul 2025324 AMAQI
23°C20/28°C
10th Jul 2025325 AMAQI
10th Jul 2025346 AMAQI
10th Jul 2025307 AMAQI
10th Jul 2025288 AMAQI
10th Jul 2025329 AMAQI
10th Jul 20253010 AMAQI
10th Jul 20252911 AMAQI
10th Jul 20253012 PMAQI
10th Jul 2025301 PMAQI
10th Jul 2025302 PMAQI
10th Jul 2025333 PMAQI
10th Jul 2025314 PMAQI
10th Jul 2025295 PMAQI
10th Jul 2025296 PMAQI
10th Jul 2025307 PMAQI
10th Jul 2025298 PMAQI
10th Jul 2025309 PMAQI
10th Jul 20252810 PMAQI
10th Jul 20253011 PMAQI
11th Jul 20253112 AMAQI
11th Jul 2025311 AMAQI
11th Jul 2025292 AMAQI
11th Jul 2025293 AMAQI
11th Jul 2025294 AMAQI
21°C19/24°C
11th Jul 2025315 AMAQI
11th Jul 2025306 AMAQI
11th Jul 2025307 AMAQI
11th Jul 2025348 AMAQI
11th Jul 2025329 AMAQI
11th Jul 20253410 AMAQI
11th Jul 20253311 AMAQI
11th Jul 20253012 PMAQI
11th Jul 2025321 PMAQI
11th Jul 2025322 PMAQI
11th Jul 2025343 PMAQI
11th Jul 2025344 PMAQI
11th Jul 2025345 PMAQI
11th Jul 2025346 PMAQI
11th Jul 2025327 PMAQI
11th Jul 2025348 PMAQI
11th Jul 2025359 PMAQI
11th Jul 20253310 PMAQI
11th Jul 20253511 PMAQI
12th Jul 20253512 AMAQI
12th Jul 2025331 AMAQI
12th Jul 2025302 AMAQI
12th Jul 2025313 AMAQI
12th Jul 2025324 AMAQI
22°C19/27°C
12th Jul 2025335 AMAQI
12th Jul 2025356 AMAQI
12th Jul 2025357 AMAQI
12th Jul 2025338 AMAQI
12th Jul 2025329 AMAQI
12th Jul 20253310 AMAQI
12th Jul 20253411 AMAQI
12th Jul 20253212 PMAQI
12th Jul 2025331 PMAQI
12th Jul 2025332 PMAQI
12th Jul 2025343 PMAQI
12th Jul 2025364 PMAQI
12th Jul 2025365 PMAQI
12th Jul 2025396 PMAQI
12th Jul 2025357 PMAQI
12th Jul 2025368 PMAQI
12th Jul 2025339 PMAQI
12th Jul 20253210 PMAQI
12th Jul 20253511 PMAQI
13th Jul 20253512 AMAQI
13th Jul 2025331 AMAQI
13th Jul 2025282 AMAQI
13th Jul 2025263 AMAQI
13th Jul 2025264 AMAQI
23°C21/30°C
13th Jul 2025225 AMAQI
13th Jul 2025236 AMAQI
13th Jul 2025247 AMAQI
13th Jul 2025238 AMAQI
13th Jul 2025229 AMAQI
13th Jul 20252510 AMAQI
13th Jul 20252311 AMAQI
13th Jul 20252412 PMAQI
13th Jul 2025251 PMAQI
13th Jul 2025262 PMAQI
13th Jul 2025283 PMAQI
13th Jul 2025274 PMAQI
13th Jul 2025285 PMAQI
13th Jul 2025286 PMAQI
13th Jul 2025287 PMAQI
13th Jul 2025288 PMAQI
13th Jul 2025299 PMAQI
13th Jul 20252810 PMAQI
13th Jul 20252811 PMAQI
14th Jul 20252512 AMAQI
14th Jul 2025261 AMAQI
14th Jul 2025202 AMAQI
14th Jul 2025203 AMAQI
14th Jul 2025204 AMAQI
22°C19/26°C
14th Jul 2025225 AMAQI
14th Jul 2025216 AMAQI
14th Jul 2025227 AMAQI
14th Jul 2025228 AMAQI
14th Jul 2025229 AMAQI
14th Jul 20252310 AMAQI
14th Jul 20252311 AMAQI
14th Jul 20252412 PMAQI
14th Jul 2025241 PMAQI
14th Jul 2025252 PMAQI
14th Jul 2025263 PMAQI
14th Jul 2025264 PMAQI
14th Jul 2025265 PMAQI
14th Jul 2025266 PMAQI
14th Jul 2025267 PMAQI
14th Jul 2025268 PMAQI
14th Jul 2025269 PMAQI
14th Jul 20252510 PMAQI
14th Jul 20252511 PMAQI
15th Jul 20252712 AMAQI
15th Jul 2025281 AMAQI
15th Jul 2025252 AMAQI
15th Jul 2025243 AMAQI
15th Jul 2025244 AMAQI
22°C20/26°C
15th Jul 2025245 AMAQI
15th Jul 2025266 AMAQI
15th Jul 2025267 AMAQI
15th Jul 2025268 AMAQI
15th Jul 2025309 AMAQI
15th Jul 20253210 AMAQI
15th Jul 20253811 AMAQI
15th Jul 20254712 PMAQI
15th Jul 2025421 PMAQI
15th Jul 2025402 PMAQI
15th Jul 2025363 PMAQI
15th Jul 2025424 PMAQI
15th Jul 2025425 PMAQI
15th Jul 2025366 PMAQI
15th Jul 2025327 PMAQI
15th Jul 2025348 PMAQI
15th Jul 2025389 PMAQI
15th Jul 20253910 PMAQI
15th Jul 20254011 PMAQI
16th Jul 20254212 AMAQI
16th Jul 2025491 AMAQI
16th Jul 2025482 AMAQI
16th Jul 2025463 AMAQI
16th Jul 2025434 AMAQI
27°C23/34°C
16th Jul 2025435 AMAQI
16th Jul 2025466 AMAQI
16th Jul 2025487 AMAQI
16th Jul 2025508 AMAQI
16th Jul 2025509 AMAQI
16th Jul 20255010 AMAQI
16th Jul 20255211 AMAQI
16th Jul 20255112 PMAQI
16th Jul 2025441 PMAQI
16th Jul 2025442 PMAQI
16th Jul 2025453 PMAQI
16th Jul 2025444 PMAQI
16th Jul 2025455 PMAQI
16th Jul 2025436 PMAQI
16th Jul 2025487 PMAQI
16th Jul 2025508 PMAQI
16th Jul 2025499 PMAQI
16th Jul 20254610 PMAQI
16th Jul 20254811 PMAQI
17th Jul 20254812 AMAQI
17th Jul 2025441 AMAQI
17th Jul 2025372 AMAQI
17th Jul 2025343 AMAQI
17th Jul 2025344 AMAQI
28°C23/35°C
17th Jul 2025355 AMAQI
17th Jul 2025366 AMAQI
17th Jul 2025387 AMAQI
17th Jul 2025408 AMAQI
17th Jul 2025399 AMAQI
17th Jul 20254010 AMAQI
17th Jul 20253611 AMAQI
17th Jul 20254012 PMAQI
17th Jul 2025331 PMAQI
17th Jul 2025322 PMAQI
17th Jul 2025343 PMAQI
17th Jul 2025344 PMAQI
17th Jul 2025345 PMAQI
17th Jul 2025326 PMAQI
17th Jul 2025347 PMAQI
17th Jul 2025358 PMAQI
17th Jul 2025339 PMAQI
17th Jul 20253210 PMAQI
17th Jul 20253211 PMAQI
18th Jul 20253112 AMAQI
18th Jul 2025271 AMAQI
18th Jul 2025212 AMAQI
18th Jul 2025203 AMAQI
18th Jul 2025144 AMAQI
26°C25/30°C
18th Jul 2025135 AMAQI
18th Jul 2025156 AMAQI
18th Jul 2025167 AMAQI
18th Jul 2025158 AMAQI
18th Jul 2025149 AMAQI
18th Jul 20251410 AMAQI
18th Jul 20251611 AMAQI
18th Jul 20251612 PMAQI
18th Jul 2025161 PMAQI
18th Jul 2025162 PMAQI
18th Jul 2025163 PMAQI
18th Jul 2025174 PMAQI
18th Jul 2025185 PMAQI
18th Jul 2025176 PMAQI
18th Jul 2025187 PMAQI
18th Jul 2025198 PMAQI
18th Jul 2025199 PMAQI
18th Jul 20251910 PMAQI
18th Jul 20252011 PMAQI
19th Jul 20252012 AMAQI
19th Jul 2025201 AMAQI
19th Jul 2025212 AMAQI
19th Jul 2025203 AMAQI
19th Jul 2025204 AMAQI
25°C20/28°C
19th Jul 2025205 AMAQI
19th Jul 2025216 AMAQI
19th Jul 2025227 AMAQI
19th Jul 2025228 AMAQI
19th Jul 2025219 AMAQI
19th Jul 20252110 AMAQI
19th Jul 20252011 AMAQI
19th Jul 20252112 PMAQI
19th Jul 2025221 PMAQI
19th Jul 2025222 PMAQI
19th Jul 2025233 PMAQI
19th Jul 2025224 PMAQI
19th Jul 2025225 PMAQI
19th Jul 2025226 PMAQI
19th Jul 2025227 PMAQI
19th Jul 2025228 PMAQI
19th Jul 2025229 PMAQI
19th Jul 20252210 PMAQI
19th Jul 20252311 PMAQI
20th Jul 20252312 AMAQI
20th Jul 2025221 AMAQI
20th Jul 2025182 AMAQI
20th Jul 2025213 AMAQI
20th Jul 2025184 AMAQI
24°C16/31°C
20th Jul 2025175 AMAQI
20th Jul 2025196 AMAQI
20th Jul 2025197 AMAQI
20th Jul 2025208 AMAQI
20th Jul 2025209 AMAQI
20th Jul 20251910 AMAQI
20th Jul 20252011 AMAQI
20th Jul 20252012 PMAQI
20th Jul 2025191 PMAQI
20th Jul 2025202 PMAQI
20th Jul 2025223 PMAQI
20th Jul 2025224 PMAQI
20th Jul 2025215 PMAQI
20th Jul 2025216 PMAQI
20th Jul 2025227 PMAQI
20th Jul 2025228 PMAQI
20th Jul 2025229 PMAQI
20th Jul 20252310 PMAQI
20th Jul 20252311 PMAQI
21st Jul 20252212 AMAQI
21st Jul 2025221 AMAQI
21st Jul 2025202 AMAQI
21st Jul 2025193 AMAQI
21st Jul 2025174 AMAQI
25°C20/31°C
21st Jul 2025205 AMAQI
21st Jul 2025236 AMAQI
21st Jul 2025287 AMAQI
21st Jul 2025318 AMAQI
21st Jul 2025389 AMAQI
21st Jul 20254610 AMAQI
21st Jul 20254611 AMAQI
21st Jul 20255012 PMAQI
21st Jul 2025481 PMAQI
21st Jul 2025402 PMAQI
21st Jul 2025343 PMAQI
21st Jul 2025324 PMAQI
21st Jul 2025265 PMAQI
21st Jul 2025256 PMAQI
21st Jul 2025247 PMAQI
21st Jul 2025248 PMAQI
21st Jul 2025219 PMAQI
21st Jul 20252410 PMAQI
21st Jul 20252411 PMAQI
22nd Jul 20252412 AMAQI
22nd Jul 2025241 AMAQI
22nd Jul 2025162 AMAQI
22nd Jul 2025153 AMAQI
22nd Jul 2025144 AMAQI
23°C19/27°C
22nd Jul 2025155 AMAQI
22nd Jul 2025166 AMAQI
22nd Jul 2025167 AMAQI
22nd Jul 2025178 AMAQI
22nd Jul 2025179 AMAQI
22nd Jul 20251710 AMAQI
22nd Jul 20251711 AMAQI
22nd Jul 20251712 PMAQI
22nd Jul 2025161 PMAQI
22nd Jul 2025182 PMAQI
22nd Jul 2025193 PMAQI
22nd Jul 2025194 PMAQI
22nd Jul 2025185 PMAQI
22nd Jul 2025186 PMAQI
22nd Jul 2025207 PMAQI
22nd Jul 2025198 PMAQI
22nd Jul 2025209 PMAQI
22nd Jul 20251910 PMAQI
22nd Jul 20252111 PMAQI
23rd Jul 20252112 AMAQI
23rd Jul 2025221 AMAQI
23rd Jul 2025192 AMAQI
23rd Jul 2025193 AMAQI
23rd Jul 2025194 AMAQI
21°C15/25°C
23rd Jul 2025185 AMAQI
23rd Jul 2025196 AMAQI
23rd Jul 2025207 AMAQI
23rd Jul 2025198 AMAQI
23rd Jul 2025209 AMAQI
23rd Jul 20252210 AMAQI
23rd Jul 20252211 AMAQI
23rd Jul 20252212 PMAQI
23rd Jul 2025251 PMAQI
23rd Jul 2025232 PMAQI
23rd Jul 2025213 PMAQI
23rd Jul 2025224 PMAQI
23rd Jul 2025225 PMAQI
23rd Jul 2025226 PMAQI
23rd Jul 2025227 PMAQI
23rd Jul 2025228 PMAQI
23rd Jul 2025229 PMAQI
23rd Jul 20252310 PMAQI
23rd Jul 20252311 PMAQI
24th Jul 20252312 AMAQI
24th Jul 2025231 AMAQI
24th Jul 2025192 AMAQI
24th Jul 2025203 AMAQI
24th Jul 2025194 AMAQI
24°C19/27°C
24th Jul 2025205 AMAQI
24th Jul 2025226 AMAQI
24th Jul 2025237 AMAQI
24th Jul 2025258 AMAQI
24th Jul 2025279 AMAQI
24th Jul 20252810 AMAQI
24th Jul 20253211 AMAQI
24th Jul 20253612 PMAQI
24th Jul 2025371 PMAQI
24th Jul 2025352 PMAQI
24th Jul 2025343 PMAQI
24th Jul 2025344 PMAQI
24th Jul 2025345 PMAQI
24th Jul 2025346 PMAQI
24th Jul 2025307 PMAQI
24th Jul 2025308 PMAQI
24th Jul 2025339 PMAQI
24th Jul 20253310 PMAQI
24th Jul 20253411 PMAQI
25th Jul 20253412 AMAQI
25th Jul 2025341 AMAQI
25th Jul 2025332 AMAQI
25th Jul 2025323 AMAQI
25th Jul 2025344 AMAQI
26°C20/32°C
25th Jul 2025355 AMAQI
25th Jul 2025376 AMAQI
25th Jul 2025407 AMAQI
25th Jul 2025418 AMAQI
25th Jul 2025439 AMAQI
25th Jul 20254310 AMAQI
25th Jul 20254411 AMAQI
25th Jul 20254612 PMAQI
25th Jul 2025441 PMAQI
25th Jul 2025402 PMAQI
25th Jul 2025393 PMAQI
25th Jul 2025384 PMAQI
25th Jul 2025365 PMAQI
25th Jul 2025376 PMAQI
25th Jul 2025417 PMAQI
25th Jul 2025398 PMAQI
25th Jul 2025399 PMAQI
25th Jul 20253910 PMAQI
25th Jul 20254011 PMAQI
26th Jul 20254512 AMAQI
26th Jul 2025461 AMAQI
26th Jul 2025442 AMAQI
26th Jul 2025483 AMAQI
26th Jul 2025594 AMAQI
28°C23/37°C
26th Jul 2025645 AMAQI
26th Jul 2025806 AMAQI
26th Jul 2025867 AMAQI
26th Jul 2025978 AMAQI
26th Jul 20251049 AMAQI
26th Jul 202510110 AMAQI
26th Jul 20259411 AMAQI
26th Jul 20258912 PMAQI
26th Jul 2025771 PMAQI
26th Jul 2025812 PMAQI
26th Jul 2025803 PMAQI
26th Jul 2025814 PMAQI
26th Jul 2025815 PMAQI
26th Jul 2025746 PMAQI
26th Jul 2025687 PMAQI
26th Jul 2025688 PMAQI
26th Jul 2025719 PMAQI
26th Jul 20257110 PMAQI
26th Jul 20257611 PMAQI
27th Jul 20257612 AMAQI
27th Jul 2025861 AMAQI
27th Jul 2025822 AMAQI
27th Jul 2025913 AMAQI
27th Jul 2025914 AMAQI
26°C23/30°C
27th Jul 2025885 AMAQI
27th Jul 2025896 AMAQI
27th Jul 2025867 AMAQI
27th Jul 2025848 AMAQI
27th Jul 2025829 AMAQI
27th Jul 20258410 AMAQI
27th Jul 20258111 AMAQI
27th Jul 20257912 PMAQI
27th Jul 2025791 PMAQI
27th Jul 2025792 PMAQI
27th Jul 2025843 PMAQI
27th Jul 2025804 PMAQI
27th Jul 2025825 PMAQI
27th Jul 2025796 PMAQI
27th Jul 2025827 PMAQI
27th Jul 2025838 PMAQI
27th Jul 2025779 PMAQI
27th Jul 20257610 PMAQI
27th Jul 20257511 PMAQI
28th Jul 20257512 AMAQI
28th Jul 2025671 AMAQI
28th Jul 2025642 AMAQI
28th Jul 2025663 AMAQI
28th Jul 2025654 AMAQI
22°C19/25°C
28th Jul 2025635 AMAQI
28th Jul 2025616 AMAQI
28th Jul 2025627 AMAQI
28th Jul 2025618 AMAQI
28th Jul 2025629 AMAQI
28th Jul 20256010 AMAQI
28th Jul 20256011 AMAQI
28th Jul 20256012 PMAQI
28th Jul 2025591 PMAQI
28th Jul 2025602 PMAQI
28th Jul 2025603 PMAQI
28th Jul 2025624 PMAQI
28th Jul 2025625 PMAQI
28th Jul 2025626 PMAQI
28th Jul 2025617 PMAQI
28th Jul 2025608 PMAQI
28th Jul 2025619 PMAQI
28th Jul 20256010 PMAQI
28th Jul 20256111 PMAQI
29th Jul 20256012 AMAQI
29th Jul 2025601 AMAQI
29th Jul 2025562 AMAQI
29th Jul 2025563 AMAQI
29th Jul 2025564 AMAQI
26°C21/33°C
29th Jul 2025575 AMAQI
29th Jul 2025576 AMAQI
29th Jul 2025577 AMAQI
29th Jul 2025588 AMAQI
29th Jul 2025589 AMAQI
29th Jul 20255710 AMAQI
29th Jul 20255811 AMAQI
29th Jul 20255712 PMAQI
29th Jul 2025541 PMAQI
29th Jul 2025552 PMAQI
29th Jul 2025563 PMAQI
29th Jul 2025564 PMAQI
29th Jul 2025565 PMAQI
29th Jul 2025566 PMAQI
29th Jul 2025577 PMAQI
29th Jul 2025588 PMAQI
29th Jul 2025569 PMAQI
29th Jul 20255610 PMAQI
29th Jul 20255511 PMAQI
30th Jul 20255412 AMAQI
30th Jul 2025541 AMAQI
30th Jul 2025412 AMAQI
30th Jul 2025383 AMAQI
30th Jul 2025354 AMAQI
31°C24/38°C
30th Jul 2025365 AMAQI
30th Jul 2025406 AMAQI
30th Jul 2025397 AMAQI
30th Jul 2025438 AMAQI
30th Jul 2025449 AMAQI
30th Jul 20254310 AMAQI
30th Jul 20254411 AMAQI
30th Jul 20254612 PMAQI
30th Jul 2025481 PMAQI
30th Jul 2025492 PMAQI
30th Jul 2025483 PMAQI
30th Jul 2025484 PMAQI
30th Jul 2025485 PMAQI
30th Jul 2025486 PMAQI
30th Jul 2025487 PMAQI
30th Jul 2025488 PMAQI
30th Jul 2025469 PMAQI
30th Jul 20254610 PMAQI
30th Jul 20254811 PMAQI
31st Jul 20254812 AMAQI
31st Jul 2025451 AMAQI
31st Jul 2025392 AMAQI
31st Jul 2025483 AMAQI
31st Jul 2025544 AMAQI
31°C26/36°C
31st Jul 2025595 AMAQI
31st Jul 2025646 AMAQI
31st Jul 2025667 AMAQI
31st Jul 2025698 AMAQI
31st Jul 2025769 AMAQI
31st Jul 20257910 AMAQI
31st Jul 20258111 AMAQI
31st Jul 20258412 PMAQI
31st Jul 2025831 PMAQI
31st Jul 2025832 PMAQI
31st Jul 2025833 PMAQI
31st Jul 2025834 PMAQI
31st Jul 2025765 PMAQI
31st Jul 2025766 PMAQI
31st Jul 2025687 PMAQI
31st Jul 2025678 PMAQI
31st Jul 2025689 PMAQI
31st Jul 20256710 PMAQI
31st Jul 20256411 PMAQI
1st Aug 20256212 AMAQI
1st Aug 2025591 AMAQI
1st Aug 2025562 AMAQI
1st Aug 2025563 AMAQI
1st Aug 2025554 AMAQI
24°C17/27°C
1st Aug 2025565 AMAQI
1st Aug 2025576 AMAQI
1st Aug 2025587 AMAQI
1st Aug 2025588 AMAQI
1st Aug 2025589 AMAQI
1st Aug 20255510 AMAQI
1st Aug 20255211 AMAQI
1st Aug 20255212 PMAQI
1st Aug 2025531 PMAQI
1st Aug 2025502 PMAQI
1st Aug 2025393 PMAQI
1st Aug 2025374 PMAQI
1st Aug 2025345 PMAQI
1st Aug 2025316 PMAQI
1st Aug 2025577 PMAQI
1st Aug 2025408 PMAQI
1st Aug 2025269 PMAQI
1st Aug 20252610 PMAQI
1st Aug 20253411 PMAQI
2nd Aug 20253412 AMAQI
2nd Aug 2025371 AMAQI
2nd Aug 2025342 AMAQI
2nd Aug 2025293 AMAQI
2nd Aug 2025284 AMAQI
19°C15/23°C
2nd Aug 2025255 AMAQI
2nd Aug 2025256 AMAQI
2nd Aug 2025247 AMAQI
2nd Aug 2025258 AMAQI
2nd Aug 2025259 AMAQI
2nd Aug 20252510 AMAQI
2nd Aug 20252211 AMAQI
2nd Aug 20252112 PMAQI
2nd Aug 2025231 PMAQI
2nd Aug 2025262 PMAQI
2nd Aug 2025313 PMAQI
2nd Aug 2025374 PMAQI
2nd Aug 2025425 PMAQI
2nd Aug 2025416 PMAQI
2nd Aug 2025297 PMAQI
2nd Aug 2025398 PMAQI
2nd Aug 2025469 PMAQI
2nd Aug 20255210 PMAQI
2nd Aug 20255311 PMAQI
3rd Aug 20255012 AMAQI
3rd Aug 2025551 AMAQI
3rd Aug 2025542 AMAQI
3rd Aug 2025523 AMAQI
3rd Aug 2025494 AMAQI
21°C14/26°C
3rd Aug 2025475 AMAQI
3rd Aug 2025496 AMAQI
3rd Aug 2025487 AMAQI
3rd Aug 2025518 AMAQI
3rd Aug 2025549 AMAQI
3rd Aug 20255810 AMAQI
3rd Aug 20256011 AMAQI
3rd Aug 20256812 PMAQI
3rd Aug 2025741 PMAQI
3rd Aug 2025762 PMAQI
3rd Aug 2025783 PMAQI
3rd Aug 2025794 PMAQI
3rd Aug 2025805 PMAQI
3rd Aug 2025816 PMAQI
3rd Aug 2025577 PMAQI
3rd Aug 2025688 PMAQI
3rd Aug 2025799 PMAQI
3rd Aug 20257510 PMAQI
3rd Aug 20257411 PMAQI
4th Aug 20257112 AMAQI
4th Aug 2025831 AMAQI
4th Aug 2025892 AMAQI
4th Aug 2025743 AMAQI
4th Aug 2025724 AMAQI
23°C15/31°C
4th Aug 2025745 AMAQI
4th Aug 2025756 AMAQI
4th Aug 2025747 AMAQI
4th Aug 2025758 AMAQI
4th Aug 2025789 AMAQI
4th Aug 20258010 AMAQI
4th Aug 20258411 AMAQI
4th Aug 20258612 PMAQI
4th Aug 2025901 PMAQI
4th Aug 20251002 PMAQI
4th Aug 2025983 PMAQI
4th Aug 2025914 PMAQI
4th Aug 2025925 PMAQI
4th Aug 2025986 PMAQI
4th Aug 2025817 PMAQI
4th Aug 2025928 PMAQI
4th Aug 20251019 PMAQI
4th Aug 202510010 PMAQI
4th Aug 20259511 PMAQI
5th Aug 202510012 AMAQI
5th Aug 20251081 AMAQI
5th Aug 2025952 AMAQI
5th Aug 2025983 AMAQI
5th Aug 2025934 AMAQI
25°C17/33°C
5th Aug 2025945 AMAQI
5th Aug 2025956 AMAQI
5th Aug 2025967 AMAQI
5th Aug 2025988 AMAQI
5th Aug 2025949 AMAQI
5th Aug 202510110 AMAQI
5th Aug 20259911 AMAQI
5th Aug 20259912 PMAQI
5th Aug 2025941 PMAQI
5th Aug 2025902 PMAQI
5th Aug 2025923 PMAQI
5th Aug 2025854 PMAQI
5th Aug 2025845 PMAQI
5th Aug 2025786 PMAQI
5th Aug 2025967 PMAQI
5th Aug 2025818 PMAQI
5th Aug 2025659 PMAQI
5th Aug 20255810 PMAQI
5th Aug 20256011 PMAQI
6th Aug 20255812 AMAQI
6th Aug 2025541 AMAQI
6th Aug 2025492 AMAQI
6th Aug 2025493 AMAQI
6th Aug 2025484 AMAQI
21°C19/23°C
6th Aug 2025495 AMAQI
6th Aug 2025506 AMAQI
6th Aug 2025527 AMAQI
6th Aug 2025508 AMAQI
6th Aug 2025559 AMAQI
6th Aug 20255610 AMAQI
6th Aug 20256011 AMAQI
6th Aug 20256312 PMAQI
6th Aug 2025641 PMAQI
6th Aug 2025672 PMAQI
6th Aug 2025673 PMAQI
6th Aug 2025614 PMAQI
6th Aug 2025605 PMAQI
6th Aug 2025606 PMAQI
6th Aug 2025567 PMAQI
6th Aug 2025568 PMAQI
6th Aug 2025589 PMAQI
6th Aug 20255910 PMAQI
6th Aug 20256311 PMAQI
7th Aug 20255912 AMAQI
7th Aug 2025681 AMAQI
7th Aug 2025702 AMAQI
7th Aug 2025673 AMAQI
7th Aug 2025664 AMAQI
21°C19/25°C
7th Aug 2025625 AMAQI
5 AM7th Aug 2025616 AMAQI
7th Aug 2025627 AMAQI
7th Aug 2025658 AMAQI
7th Aug 2025659 AMAQI
7th Aug 20256510 AMAQI
7th Aug 20256011 AMAQI
7th Aug 20256012 PMAQI
12 PM7th Aug 2025611 PMAQI
7th Aug 2025612 PMAQI
7th Aug 2025623 PMAQI
7th Aug 2025634 PMAQI
7th Aug 2025635 PMAQI
7th Aug 2025626 PMAQI
7th Aug 2025627 PMAQI
7th Aug 2025638 PMAQI
8 PM7th Aug 2025609 PMAQI
7th Aug 20256110 PMAQI
7th Aug 20256211 PMAQI
12 AM
4 AM
24°C18/30°C
Day time
Avg. Highest Time
5 AM - 8 PM
44AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM
44AQI
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. 44), while the lowest AQI was between 5 AM to 8 PM (Avg. 44).
Night time
Avg. Highest Time
12 AM - 1 AM
44AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
2 AM - 4 AM
40AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 1 AM (Avg. 44), while the lowest AQI was between 2 AM to 4 AM (Avg. 40).
2025 Days Vs Air Quality
Observatory Service Rd, Milton, Massachusetts, United States
2025
83%
111
17%
23
Total number of days with different AQI categories in last 220 days in 2025 (145 days remaining)
Good
111 DaysModerate
23 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 83%
Health Risk Level:
Low
In 2025, 83% of 220 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
Observatory Service Rd, Milton, 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
24AQI
24AQI
3rd March 2025
25AQI
25AQI
4th March 2025
23AQI
23AQI
5th March 2025
28AQI
28AQI
1st April 2025
17AQI
17AQI
2nd April 2025
18AQI
18AQI
3rd April 2025
19AQI
19AQI
4th April 2025
21AQI
21AQI
5th April 2025
21AQI
21AQI
6th April 2025
16AQI
16AQI
7th April 2025
16AQI
16AQI
8th April 2025
12AQI
12AQI
9th April 2025
16AQI
16AQI
10th April 2025
21AQI
21AQI
11th April 2025
20AQI
20AQI
12th April 2025
16AQI
16AQI
13th April 2025
18AQI
18AQI
14th April 2025
23AQI
23AQI
15th April 2025
23AQI
23AQI
16th April 2025
9AQI
9AQI
17th April 2025
14AQI
14AQI
18th April 2025
24AQI
24AQI
19th April 2025
45AQI
45AQI
20th April 2025
20AQI
20AQI
21st April 2025
16AQI
16AQI
22nd April 2025
29AQI
29AQI
23rd April 2025
22AQI
22AQI
24th April 2025
26AQI
26AQI
25th April 2025
48AQI
48AQI
26th April 2025
25AQI
25AQI
27th April 2025
11AQI
11AQI
28th April 2025
18AQI
18AQI
29th April 2025
26AQI
26AQI
30th April 2025
17AQI
17AQI
1st May 2025
17AQI
17AQI
2nd May 2025
32AQI
32AQI
3rd May 2025
34AQI
34AQI
4th May 2025
27AQI
27AQI
5th May 2025
19AQI
19AQI
6th May 2025
20AQI
20AQI
7th May 2025
22AQI
22AQI
8th May 2025
20AQI
20AQI
9th May 2025
21AQI
21AQI
10th May 2025
14AQI
14AQI
11th May 2025
19AQI
19AQI
12th May 2025
22AQI
22AQI
13th May 2025
29AQI
29AQI
14th May 2025
26AQI
26AQI
15th May 2025
27AQI
27AQI
16th May 2025
31AQI
31AQI
17th May 2025
31AQI
31AQI
18th May 2025
16AQI
16AQI
19th May 2025
12AQI
12AQI
20th May 2025
13AQI
13AQI
21st May 2025
15AQI
15AQI
22nd May 2025
15AQI
15AQI
23rd May 2025
13AQI
13AQI
24th May 2025
12AQI
12AQI
25th May 2025
13AQI
13AQI
26th May 2025
18AQI
18AQI
27th May 2025
22AQI
22AQI
28th May 2025
25AQI
25AQI
29th May 2025
18AQI
18AQI
30th May 2025
27AQI
27AQI
31st May 2025
20AQI
20AQI
1st June 2025
12AQI
12AQI
2nd June 2025
16AQI
16AQI
3rd June 2025
24AQI
24AQI
4th June 2025
46AQI
46AQI
5th June 2025
61AQI
61AQI
6th June 2025
58AQI
58AQI
7th June 2025
57AQI
57AQI
8th June 2025
84AQI
84AQI
9th June 2025
74AQI
74AQI
10th June 2025
51AQI
51AQI
11th June 2025
51AQI
51AQI
12th June 2025
66AQI
66AQI
13th June 2025
53AQI
53AQI
14th June 2025
49AQI
49AQI
15th June 2025
37AQI
37AQI
16th June 2025
35AQI
35AQI
17th June 2025
27AQI
27AQI
18th June 2025
21AQI
21AQI
19th June 2025
25AQI
25AQI
20th June 2025
27AQI
27AQI
21st June 2025
46AQI
46AQI
22nd June 2025
47AQI
47AQI
23rd June 2025
51AQI
51AQI
24th June 2025
53AQI
53AQI
25th June 2025
50AQI
50AQI
26th June 2025
42AQI
42AQI
27th June 2025
31AQI
31AQI
28th June 2025
24AQI
24AQI
29th June 2025
33AQI
33AQI
30th June 2025
32AQI
32AQI
1st July 2025
34AQI
34AQI
2nd July 2025
30AQI
30AQI
3rd July 2025
46AQI
46AQI
4th July 2025
45AQI
45AQI
5th July 2025
53AQI
53AQI
6th July 2025
54AQI
54AQI
7th July 2025
46AQI
46AQI
8th July 2025
35AQI
35AQI
9th July 2025
30AQI
30AQI
10th July 2025
31AQI
31AQI
11th July 2025
32AQI
32AQI
12th July 2025
34AQI
34AQI
13th July 2025
27AQI
27AQI
14th July 2025
24AQI
24AQI
15th July 2025
33AQI
33AQI
16th July 2025
47AQI
47AQI
17th July 2025
36AQI
36AQI
18th July 2025
18AQI
18AQI
19th July 2025
21AQI
21AQI
20th July 2025
21AQI
21AQI
21st July 2025
28AQI
28AQI
22nd July 2025
18AQI
18AQI
23rd July 2025
21AQI
21AQI
24th July 2025
28AQI
28AQI
25th July 2025
38AQI
38AQI
26th July 2025
71AQI
71AQI
27th July 2025
82AQI
82AQI
28th July 2025
62AQI
62AQI
29th July 2025
57AQI
57AQI
30th July 2025
45AQI
45AQI
31st July 2025
66AQI
66AQI
1st August 2025
48AQI
48AQI
2nd August 2025
33AQI
33AQI
3rd August 2025
63AQI
63AQI
4th August 2025
86AQI
86AQI
5th August 2025
89AQI
89AQI
6th August 2025
56AQI
56AQI
7th August 2025
64AQI
64AQI
24AQI
21AQI
21AQI
43AQI
39AQI
63AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202532AQI
5
30
31
19
11
24
7
2
5
111
23
Highest AQI recorded in
August63AQI
Lowest AQI recorded in
April21AQI
Most & Least Polluted Years Over the Last 1 Years
Most Polluted Year Recorded
2025(Avg.)
32AQILeast Polluted Year Recorded
2025(Avg.)
32AQIObservatory Service Rd's annual 2025 AQI (32) shows an average percentage change of NaN% (improved AQI) compared to previous years: .
