Prospect Harbor, Maine, 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
Prospect Harbor, Maine, United States
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2025
69AQILowest AQI recorded on
2nd Aug 2025
22AQISame Day Analysis (12th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 56 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
Prospect Harbor, Maine, United States
AQI
Day
Night
.
5 AM12th Aug 2025
7 PM
4 AM13th Aug 2025
Day time
Avg. Highest Time
4PM12th Aug
65AQI
Avg. Lowest Time
6AM12th Aug
46AQI
Night time
Avg. Highest Time
3AM13th Aug
61AQI
Avg. Lowest Time
8PM12th Aug
55AQI
In the last 24 hours,
Prospect Harbor's AQI reached its highest point of 65 at 4 PM during the Day, while the lowest point, 46, was recorded at 6 AM during the Day between 12th Aug and 13th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Prospect Harbor, Maine, 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 2025185 AMAQI
14th Jul 2025166 AMAQI
14th Jul 2025177 AMAQI
14th Jul 2025168 AMAQI
14th Jul 2025169 AMAQI
14th Jul 20251810 AMAQI
14th Jul 20251511 AMAQI
14th Jul 20251612 PMAQI
14th Jul 2025151 PMAQI
14th Jul 2025182 PMAQI
14th Jul 2025163 PMAQI
14th Jul 2025164 PMAQI
14th Jul 2025165 PMAQI
14th Jul 2025186 PMAQI
14th Jul 2025167 PMAQI
14th Jul 2025148 PMAQI
14th Jul 2025159 PMAQI
14th Jul 20251410 PMAQI
14th Jul 20251711 PMAQI
15th Jul 20251612 AMAQI
15th Jul 2025141 AMAQI
15th Jul 2025142 AMAQI
15th Jul 2025143 AMAQI
15th Jul 2025164 AMAQI
--°C/°C
15th Jul 2025165 AMAQI
15th Jul 2025166 AMAQI
15th Jul 2025177 AMAQI
15th Jul 2025208 AMAQI
15th Jul 2025219 AMAQI
15th Jul 20253010 AMAQI
15th Jul 20253911 AMAQI
15th Jul 20255412 PMAQI
15th Jul 2025531 PMAQI
15th Jul 2025552 PMAQI
15th Jul 2025563 PMAQI
15th Jul 2025524 PMAQI
15th Jul 2025425 PMAQI
15th Jul 2025386 PMAQI
15th Jul 2025287 PMAQI
15th Jul 2025308 PMAQI
15th Jul 2025379 PMAQI
15th Jul 20253710 PMAQI
15th Jul 20253911 PMAQI
16th Jul 20254412 AMAQI
16th Jul 2025541 AMAQI
16th Jul 2025532 AMAQI
16th Jul 2025543 AMAQI
16th Jul 2025534 AMAQI
18°C13/23°C
16th Jul 2025525 AMAQI
16th Jul 2025516 AMAQI
16th Jul 2025527 AMAQI
16th Jul 2025528 AMAQI
16th Jul 2025529 AMAQI
16th Jul 20255410 AMAQI
16th Jul 20255611 AMAQI
16th Jul 20255612 PMAQI
16th Jul 2025571 PMAQI
16th Jul 2025562 PMAQI
16th Jul 2025543 PMAQI
16th Jul 2025564 PMAQI
16th Jul 2025545 PMAQI
16th Jul 2025536 PMAQI
16th Jul 2025537 PMAQI
16th Jul 2025508 PMAQI
16th Jul 2025429 PMAQI
16th Jul 20253510 PMAQI
16th Jul 20253011 PMAQI
17th Jul 20252612 AMAQI
17th Jul 2025231 AMAQI
17th Jul 2025212 AMAQI
17th Jul 2025203 AMAQI
17th Jul 2025204 AMAQI
18°C14/23°C
17th Jul 2025205 AMAQI
17th Jul 2025206 AMAQI
17th Jul 2025187 AMAQI
17th Jul 2025208 AMAQI
17th Jul 2025219 AMAQI
17th Jul 20252010 AMAQI
17th Jul 20252011 AMAQI
17th Jul 20252012 PMAQI
17th Jul 2025191 PMAQI
17th Jul 2025222 PMAQI
17th Jul 2025263 PMAQI
17th Jul 2025294 PMAQI
17th Jul 2025275 PMAQI
17th Jul 2025246 PMAQI
17th Jul 2025217 PMAQI
17th Jul 2025208 PMAQI
17th Jul 2025189 PMAQI
17th Jul 20252010 PMAQI
17th Jul 20252111 PMAQI
18th Jul 20251612 AMAQI
18th Jul 2025141 AMAQI
18th Jul 2025142 AMAQI
18th Jul 2025173 AMAQI
18th Jul 2025144 AMAQI
16°C14/17°C
18th Jul 2025185 AMAQI
18th Jul 2025206 AMAQI
18th Jul 2025187 AMAQI
18th Jul 2025148 AMAQI
18th Jul 2025139 AMAQI
18th Jul 20251310 AMAQI
18th Jul 20251311 AMAQI
18th Jul 20251412 PMAQI
18th Jul 2025141 PMAQI
18th Jul 2025152 PMAQI
18th Jul 2025163 PMAQI
18th Jul 2025174 PMAQI
18th Jul 2025175 PMAQI
18th Jul 2025176 PMAQI
18th Jul 2025157 PMAQI
18th Jul 2025158 PMAQI
18th Jul 2025199 PMAQI
18th Jul 20252010 PMAQI
18th Jul 20252311 PMAQI
19th Jul 20252212 AMAQI
19th Jul 2025231 AMAQI
19th Jul 2025282 AMAQI
19th Jul 2025273 AMAQI
19th Jul 2025264 AMAQI
20°C16/23°C
19th Jul 2025285 AMAQI
19th Jul 2025276 AMAQI
19th Jul 2025247 AMAQI
19th Jul 2025228 AMAQI
19th Jul 2025259 AMAQI
19th Jul 20252710 AMAQI
19th Jul 20252611 AMAQI
19th Jul 20253012 PMAQI
19th Jul 2025301 PMAQI
19th Jul 2025282 PMAQI
19th Jul 2025263 PMAQI
19th Jul 2025264 PMAQI
19th Jul 2025245 PMAQI
19th Jul 2025246 PMAQI
19th Jul 2025267 PMAQI
19th Jul 2025268 PMAQI
19th Jul 2025269 PMAQI
19th Jul 20252410 PMAQI
19th Jul 20252711 PMAQI
20th Jul 20252912 AMAQI
20th Jul 2025281 AMAQI
20th Jul 2025282 AMAQI
20th Jul 2025263 AMAQI
20th Jul 2025254 AMAQI
18°C13/22°C
20th Jul 2025285 AMAQI
20th Jul 2025306 AMAQI
20th Jul 2025277 AMAQI
20th Jul 2025258 AMAQI
20th Jul 2025249 AMAQI
20th Jul 20252510 AMAQI
20th Jul 20252811 AMAQI
20th Jul 20252712 PMAQI
20th Jul 2025241 PMAQI
20th Jul 2025232 PMAQI
20th Jul 2025203 PMAQI
20th Jul 2025204 PMAQI
20th Jul 2025195 PMAQI
20th Jul 2025196 PMAQI
20th Jul 2025247 PMAQI
20th Jul 2025248 PMAQI
20th Jul 2025209 PMAQI
20th Jul 20252110 PMAQI
20th Jul 20252011 PMAQI
21st Jul 20251712 AMAQI
21st Jul 2025171 AMAQI
21st Jul 2025172 AMAQI
21st Jul 2025173 AMAQI
21st Jul 2025204 AMAQI
15°C12/15°C
21st Jul 2025265 AMAQI
21st Jul 2025296 AMAQI
21st Jul 2025367 AMAQI
21st Jul 2025428 AMAQI
21st Jul 2025389 AMAQI
21st Jul 20253410 AMAQI
21st Jul 20254111 AMAQI
21st Jul 20253412 PMAQI
21st Jul 2025301 PMAQI
21st Jul 2025232 PMAQI
21st Jul 2025223 PMAQI
21st Jul 2025214 PMAQI
21st Jul 2025205 PMAQI
21st Jul 2025216 PMAQI
21st Jul 2025207 PMAQI
21st Jul 2025188 PMAQI
21st Jul 2025199 PMAQI
21st Jul 20252010 PMAQI
21st Jul 20252111 PMAQI
22nd Jul 20252012 AMAQI
22nd Jul 2025191 AMAQI
22nd Jul 2025152 AMAQI
22nd Jul 2025143 AMAQI
22nd Jul 2025144 AMAQI
17°C15/20°C
22nd Jul 2025125 AMAQI
22nd Jul 2025136 AMAQI
22nd Jul 2025147 AMAQI
22nd Jul 2025158 AMAQI
22nd Jul 2025179 AMAQI
22nd Jul 20251610 AMAQI
22nd Jul 20251611 AMAQI
22nd Jul 20251712 PMAQI
22nd Jul 2025181 PMAQI
22nd Jul 2025172 PMAQI
22nd Jul 2025153 PMAQI
22nd Jul 2025154 PMAQI
22nd Jul 2025185 PMAQI
22nd Jul 2025186 PMAQI
22nd Jul 2025187 PMAQI
22nd Jul 2025188 PMAQI
22nd Jul 2025239 PMAQI
22nd Jul 20252210 PMAQI
22nd Jul 20252011 PMAQI
23rd Jul 20252112 AMAQI
23rd Jul 2025221 AMAQI
23rd Jul 2025242 AMAQI
23rd Jul 2025303 AMAQI
23rd Jul 2025294 AMAQI
17°C13/22°C
23rd Jul 2025275 AMAQI
23rd Jul 2025226 AMAQI
23rd Jul 2025237 AMAQI
23rd Jul 2025318 AMAQI
23rd Jul 2025329 AMAQI
23rd Jul 20253210 AMAQI
23rd Jul 20253311 AMAQI
23rd Jul 20253212 PMAQI
23rd Jul 2025321 PMAQI
23rd Jul 2025352 PMAQI
23rd Jul 2025333 PMAQI
23rd Jul 2025284 PMAQI
23rd Jul 2025295 PMAQI
23rd Jul 2025286 PMAQI
23rd Jul 2025267 PMAQI
23rd Jul 2025258 PMAQI
23rd Jul 2025239 PMAQI
23rd Jul 20252610 PMAQI
23rd Jul 20252811 PMAQI
24th Jul 20252812 AMAQI
24th Jul 2025281 AMAQI
24th Jul 2025272 AMAQI
24th Jul 2025263 AMAQI
24th Jul 2025324 AMAQI
16°C13/19°C
24th Jul 2025295 AMAQI
24th Jul 2025376 AMAQI
24th Jul 2025287 AMAQI
24th Jul 2025348 AMAQI
24th Jul 2025279 AMAQI
24th Jul 20252410 AMAQI
24th Jul 20252611 AMAQI
24th Jul 20252912 PMAQI
24th Jul 2025301 PMAQI
24th Jul 2025292 PMAQI
24th Jul 2025313 PMAQI
24th Jul 2025324 PMAQI
24th Jul 2025375 PMAQI
24th Jul 2025366 PMAQI
24th Jul 2025297 PMAQI
24th Jul 2025318 PMAQI
24th Jul 2025369 PMAQI
24th Jul 20253810 PMAQI
24th Jul 20253511 PMAQI
25th Jul 20253412 AMAQI
25th Jul 2025361 AMAQI
25th Jul 2025492 AMAQI
25th Jul 2025433 AMAQI
25th Jul 2025474 AMAQI
16°C14/19°C
25th Jul 2025495 AMAQI
25th Jul 2025486 AMAQI
25th Jul 2025477 AMAQI
25th Jul 2025528 AMAQI
25th Jul 2025529 AMAQI
25th Jul 20254410 AMAQI
25th Jul 20254711 AMAQI
25th Jul 20254912 PMAQI
25th Jul 2025511 PMAQI
25th Jul 2025462 PMAQI
25th Jul 2025433 PMAQI
25th Jul 2025414 PMAQI
25th Jul 2025425 PMAQI
25th Jul 2025456 PMAQI
25th Jul 2025457 PMAQI
25th Jul 2025428 PMAQI
25th Jul 2025319 PMAQI
25th Jul 20253010 PMAQI
25th Jul 20253611 PMAQI
26th Jul 20256112 AMAQI
26th Jul 2025841 AMAQI
26th Jul 2025822 AMAQI
26th Jul 2025743 AMAQI
26th Jul 2025754 AMAQI
18°C15/20°C
26th Jul 2025895 AMAQI
26th Jul 2025726 AMAQI
26th Jul 2025727 AMAQI
26th Jul 2025678 AMAQI
26th Jul 2025579 AMAQI
26th Jul 20255210 AMAQI
26th Jul 20255011 AMAQI
26th Jul 20254712 PMAQI
26th Jul 2025401 PMAQI
26th Jul 2025442 PMAQI
26th Jul 2025453 PMAQI
26th Jul 2025424 PMAQI
26th Jul 2025465 PMAQI
26th Jul 2025446 PMAQI
26th Jul 2025507 PMAQI
26th Jul 2025508 PMAQI
26th Jul 2025509 PMAQI
26th Jul 20254810 PMAQI
26th Jul 20254711 PMAQI
27th Jul 20255112 AMAQI
27th Jul 2025501 AMAQI
27th Jul 2025482 AMAQI
27th Jul 2025523 AMAQI
27th Jul 2025524 AMAQI
20°C15/25°C
27th Jul 2025515 AMAQI
27th Jul 2025526 AMAQI
27th Jul 2025527 AMAQI
27th Jul 2025538 AMAQI
27th Jul 2025559 AMAQI
27th Jul 20255810 AMAQI
27th Jul 20256111 AMAQI
27th Jul 20256612 PMAQI
27th Jul 2025671 PMAQI
27th Jul 2025612 PMAQI
27th Jul 2025563 PMAQI
27th Jul 2025544 PMAQI
27th Jul 2025585 PMAQI
27th Jul 2025606 PMAQI
27th Jul 2025567 PMAQI
27th Jul 2025548 PMAQI
27th Jul 2025559 PMAQI
27th Jul 20255410 PMAQI
27th Jul 20255411 PMAQI
28th Jul 20255612 AMAQI
28th Jul 2025561 AMAQI
28th Jul 2025552 AMAQI
28th Jul 2025573 AMAQI
28th Jul 2025564 AMAQI
17°C12/21°C
28th Jul 2025575 AMAQI
28th Jul 2025566 AMAQI
28th Jul 2025557 AMAQI
28th Jul 2025558 AMAQI
28th Jul 2025569 AMAQI
28th Jul 20255610 AMAQI
28th Jul 20255611 AMAQI
28th Jul 20255812 PMAQI
28th Jul 2025571 PMAQI
28th Jul 2025552 PMAQI
28th Jul 2025523 PMAQI
28th Jul 2025514 PMAQI
28th Jul 2025505 PMAQI
28th Jul 2025506 PMAQI
28th Jul 2025547 PMAQI
28th Jul 2025528 PMAQI
28th Jul 2025439 PMAQI
28th Jul 20254110 PMAQI
28th Jul 20254011 PMAQI
29th Jul 20254212 AMAQI
29th Jul 2025431 AMAQI
29th Jul 2025532 AMAQI
29th Jul 2025523 AMAQI
29th Jul 2025524 AMAQI
17°C13/21°C
29th Jul 2025525 AMAQI
29th Jul 2025526 AMAQI
29th Jul 2025527 AMAQI
29th Jul 2025518 AMAQI
29th Jul 2025529 AMAQI
29th Jul 20255410 AMAQI
29th Jul 20255411 AMAQI
29th Jul 20255512 PMAQI
29th Jul 2025551 PMAQI
29th Jul 2025562 PMAQI
29th Jul 2025553 PMAQI
29th Jul 2025554 PMAQI
29th Jul 2025545 PMAQI
29th Jul 2025546 PMAQI
29th Jul 2025437 PMAQI
29th Jul 2025408 PMAQI
29th Jul 2025399 PMAQI
29th Jul 20254010 PMAQI
29th Jul 20254011 PMAQI
30th Jul 20253612 AMAQI
30th Jul 2025381 AMAQI
30th Jul 2025372 AMAQI
30th Jul 2025343 AMAQI
30th Jul 2025354 AMAQI
17°C13/21°C
30th Jul 2025365 AMAQI
30th Jul 2025356 AMAQI
30th Jul 2025377 AMAQI
30th Jul 2025408 AMAQI
30th Jul 2025469 AMAQI
30th Jul 20254910 AMAQI
30th Jul 20254711 AMAQI
30th Jul 20255612 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 2025569 PMAQI
30th Jul 20255610 PMAQI
30th Jul 20255511 PMAQI
31st Jul 20255512 AMAQI
31st Jul 2025561 AMAQI
31st Jul 2025572 AMAQI
31st Jul 2025563 AMAQI
31st Jul 2025554 AMAQI
17°C14/21°C
31st Jul 2025565 AMAQI
31st Jul 2025556 AMAQI
31st Jul 2025587 AMAQI
31st Jul 2025638 AMAQI
31st Jul 2025669 AMAQI
31st Jul 20256810 AMAQI
31st Jul 20256611 AMAQI
31st Jul 20256212 PMAQI
31st Jul 2025611 PMAQI
31st Jul 2025582 PMAQI
31st Jul 2025583 PMAQI
31st Jul 2025594 PMAQI
31st Jul 2025595 PMAQI
31st Jul 2025566 PMAQI
31st Jul 2025617 PMAQI
31st Jul 2025568 PMAQI
31st Jul 2025489 PMAQI
31st Jul 20254410 PMAQI
31st Jul 20254611 PMAQI
1st Aug 20255112 AMAQI
1st Aug 2025431 AMAQI
1st Aug 2025402 AMAQI
1st Aug 2025413 AMAQI
1st Aug 2025334 AMAQI
18°C15/21°C
1st Aug 2025375 AMAQI
1st Aug 2025306 AMAQI
1st Aug 2025277 AMAQI
1st Aug 2025268 AMAQI
1st Aug 2025249 AMAQI
1st Aug 20252710 AMAQI
1st Aug 20252011 AMAQI
1st Aug 20252212 PMAQI
1st Aug 2025201 PMAQI
1st Aug 2025242 PMAQI
1st Aug 2025203 PMAQI
1st Aug 2025184 PMAQI
1st Aug 2025175 PMAQI
1st Aug 2025176 PMAQI
1st Aug 2025267 PMAQI
1st Aug 2025258 PMAQI
1st Aug 2025249 PMAQI
1st Aug 20252410 PMAQI
1st Aug 20252511 PMAQI
2nd Aug 20252612 AMAQI
2nd Aug 2025241 AMAQI
2nd Aug 2025232 AMAQI
2nd Aug 2025243 AMAQI
2nd Aug 2025214 AMAQI
18°C13/22°C
2nd Aug 2025205 AMAQI
2nd Aug 2025196 AMAQI
2nd Aug 2025207 AMAQI
2nd Aug 2025188 AMAQI
2nd Aug 2025219 AMAQI
2nd Aug 20252410 AMAQI
2nd Aug 20252411 AMAQI
2nd Aug 20252212 PMAQI
2nd Aug 2025181 PMAQI
2nd Aug 2025162 PMAQI
2nd Aug 2025173 PMAQI
2nd Aug 2025204 PMAQI
2nd Aug 2025195 PMAQI
2nd Aug 2025206 PMAQI
2nd Aug 2025207 PMAQI
2nd Aug 2025208 PMAQI
2nd Aug 2025289 PMAQI
2nd Aug 20252810 PMAQI
2nd Aug 20252711 PMAQI
3rd Aug 20253212 AMAQI
3rd Aug 2025281 AMAQI
3rd Aug 2025282 AMAQI
3rd Aug 2025263 AMAQI
3rd Aug 2025274 AMAQI
17°C12/22°C
3rd Aug 2025295 AMAQI
3rd Aug 2025276 AMAQI
3rd Aug 2025327 AMAQI
3rd Aug 2025368 AMAQI
3rd Aug 2025469 AMAQI
3rd Aug 20255610 AMAQI
3rd Aug 20255911 AMAQI
3rd Aug 20256712 PMAQI
3rd Aug 2025701 PMAQI
3rd Aug 2025722 PMAQI
3rd Aug 2025773 PMAQI
3rd Aug 2025724 PMAQI
3rd Aug 2025725 PMAQI
3rd Aug 2025696 PMAQI
3rd Aug 2025377 PMAQI
3rd Aug 2025528 PMAQI
3rd Aug 2025629 PMAQI
3rd Aug 20256210 PMAQI
3rd Aug 20255711 PMAQI
4th Aug 20255612 AMAQI
4th Aug 2025561 AMAQI
4th Aug 2025542 AMAQI
4th Aug 2025583 AMAQI
4th Aug 2025544 AMAQI
17°C14/21°C
4th Aug 2025555 AMAQI
4th Aug 2025566 AMAQI
4th Aug 2025567 AMAQI
4th Aug 2025588 AMAQI
4th Aug 2025579 AMAQI
4th Aug 20256110 AMAQI
4th Aug 20256411 AMAQI
4th Aug 20257012 PMAQI
4th Aug 2025721 PMAQI
4th Aug 2025792 PMAQI
4th Aug 2025833 PMAQI
4th Aug 2025864 PMAQI
4th Aug 2025935 PMAQI
4th Aug 2025926 PMAQI
4th Aug 2025667 PMAQI
4th Aug 2025758 PMAQI
4th Aug 2025869 PMAQI
4th Aug 20258610 PMAQI
4th Aug 20258111 PMAQI
5th Aug 20258012 AMAQI
5th Aug 2025721 AMAQI
5th Aug 2025632 AMAQI
5th Aug 2025573 AMAQI
5th Aug 2025554 AMAQI
17°C12/22°C
5th Aug 2025545 AMAQI
5th Aug 2025526 AMAQI
5th Aug 2025477 AMAQI
5th Aug 2025348 AMAQI
5th Aug 2025299 AMAQI
5th Aug 20252610 AMAQI
5th Aug 20252711 AMAQI
5th Aug 20252712 PMAQI
5th Aug 2025261 PMAQI
5th Aug 2025222 PMAQI
5th Aug 2025233 PMAQI
5th Aug 2025244 PMAQI
5th Aug 2025215 PMAQI
5th Aug 2025226 PMAQI
5th Aug 2025387 PMAQI
5th Aug 2025288 PMAQI
5th Aug 2025219 PMAQI
5th Aug 20252410 PMAQI
5th Aug 20252511 PMAQI
6th Aug 20252412 AMAQI
6th Aug 2025201 AMAQI
6th Aug 2025222 AMAQI
6th Aug 2025203 AMAQI
6th Aug 2025204 AMAQI
17°C14/21°C
6th Aug 2025215 AMAQI
6th Aug 2025236 AMAQI
6th Aug 2025267 AMAQI
6th Aug 2025268 AMAQI
6th Aug 2025279 AMAQI
6th Aug 20252610 AMAQI
6th Aug 20252411 AMAQI
6th Aug 20252212 PMAQI
6th Aug 2025221 PMAQI
6th Aug 2025212 PMAQI
6th Aug 2025213 PMAQI
6th Aug 2025254 PMAQI
6th Aug 2025265 PMAQI
6th Aug 2025246 PMAQI
6th Aug 2025237 PMAQI
6th Aug 2025268 PMAQI
6th Aug 2025289 PMAQI
6th Aug 20253010 PMAQI
6th Aug 20253111 PMAQI
7th Aug 20253012 AMAQI
7th Aug 2025291 AMAQI
7th Aug 2025292 AMAQI
7th Aug 2025303 AMAQI
7th Aug 2025294 AMAQI
17°C13/21°C
7th Aug 2025295 AMAQI
7th Aug 2025306 AMAQI
7th Aug 2025307 AMAQI
7th Aug 2025308 AMAQI
7th Aug 2025309 AMAQI
7th Aug 20253210 AMAQI
7th Aug 20253211 AMAQI
7th Aug 20253112 PMAQI
7th Aug 2025311 PMAQI
7th Aug 2025292 PMAQI
7th Aug 2025303 PMAQI
7th Aug 2025284 PMAQI
7th Aug 2025265 PMAQI
7th Aug 2025276 PMAQI
7th Aug 2025307 PMAQI
7th Aug 2025308 PMAQI
7th Aug 2025359 PMAQI
7th Aug 20253810 PMAQI
7th Aug 20254011 PMAQI
8th Aug 20254212 AMAQI
8th Aug 2025451 AMAQI
8th Aug 2025462 AMAQI
8th Aug 2025473 AMAQI
8th Aug 2025464 AMAQI
17°C13/22°C
8th Aug 2025435 AMAQI
8th Aug 2025426 AMAQI
8th Aug 2025457 AMAQI
8th Aug 2025498 AMAQI
8th Aug 2025529 AMAQI
8th Aug 20254910 AMAQI
8th Aug 20254711 AMAQI
8th Aug 20254412 PMAQI
8th Aug 2025401 PMAQI
8th Aug 2025382 PMAQI
8th Aug 2025423 PMAQI
8th Aug 2025414 PMAQI
8th Aug 2025415 PMAQI
8th Aug 2025396 PMAQI
8th Aug 2025437 PMAQI
8th Aug 2025408 PMAQI
8th Aug 2025349 PMAQI
8th Aug 20253910 PMAQI
8th Aug 20253711 PMAQI
9th Aug 20253612 AMAQI
9th Aug 2025371 AMAQI
9th Aug 2025332 AMAQI
9th Aug 2025303 AMAQI
9th Aug 2025314 AMAQI
17°C11/21°C
9th Aug 2025305 AMAQI
9th Aug 2025306 AMAQI
9th Aug 2025307 AMAQI
9th Aug 2025348 AMAQI
9th Aug 2025329 AMAQI
9th Aug 20253110 AMAQI
9th Aug 20253311 AMAQI
9th Aug 20253012 PMAQI
9th Aug 2025361 PMAQI
9th Aug 2025342 PMAQI
9th Aug 2025343 PMAQI
9th Aug 2025334 PMAQI
9th Aug 2025315 PMAQI
9th Aug 2025266 PMAQI
9th Aug 2025287 PMAQI
9th Aug 2025328 PMAQI
9th Aug 2025269 PMAQI
9th Aug 20252910 PMAQI
9th Aug 20252711 PMAQI
10th Aug 20252612 AMAQI
10th Aug 2025261 AMAQI
10th Aug 2025262 AMAQI
10th Aug 2025263 AMAQI
10th Aug 2025214 AMAQI
15°C11/20°C
10th Aug 2025195 AMAQI
10th Aug 2025206 AMAQI
10th Aug 2025227 AMAQI
10th Aug 2025288 AMAQI
10th Aug 2025289 AMAQI
10th Aug 20252510 AMAQI
10th Aug 20252811 AMAQI
10th Aug 20253012 PMAQI
10th Aug 2025321 PMAQI
10th Aug 2025322 PMAQI
10th Aug 2025333 PMAQI
10th Aug 2025324 PMAQI
10th Aug 2025325 PMAQI
10th Aug 2025306 PMAQI
10th Aug 2025287 PMAQI
10th Aug 2025308 PMAQI
10th Aug 2025329 PMAQI
10th Aug 20253310 PMAQI
10th Aug 20253211 PMAQI
11th Aug 20253012 AMAQI
11th Aug 2025281 AMAQI
11th Aug 2025262 AMAQI
11th Aug 2025263 AMAQI
11th Aug 2025244 AMAQI
15°C13/19°C
11th Aug 2025255 AMAQI
11th Aug 2025246 AMAQI
11th Aug 2025237 AMAQI
11th Aug 2025268 AMAQI
11th Aug 2025309 AMAQI
11th Aug 20253610 AMAQI
11th Aug 20254211 AMAQI
11th Aug 20254212 PMAQI
11th Aug 2025451 PMAQI
11th Aug 2025462 PMAQI
11th Aug 2025483 PMAQI
11th Aug 2025534 PMAQI
11th Aug 2025505 PMAQI
11th Aug 2025516 PMAQI
11th Aug 2025347 PMAQI
11th Aug 2025458 PMAQI
11th Aug 2025549 PMAQI
11th Aug 20255410 PMAQI
11th Aug 20255411 PMAQI
12th Aug 20255412 AMAQI
12th Aug 2025551 AMAQI
12th Aug 2025542 AMAQI
12th Aug 2025513 AMAQI
12th Aug 2025514 AMAQI
17°C15/21°C
12th Aug 2025525 AMAQI
12th Aug 2025466 AMAQI
12th Aug 2025497 AMAQI
12th Aug 2025528 AMAQI
12th Aug 2025549 AMAQI
12th Aug 20255810 AMAQI
12th Aug 20255911 AMAQI
12th Aug 20256012 PMAQI
12th Aug 2025611 PMAQI
12th Aug 2025612 PMAQI
12th Aug 2025613 PMAQI
12th Aug 2025654 PMAQI
12th Aug 2025645 PMAQI
12th Aug 2025646 PMAQI
12th Aug 2025557 PMAQI
12th Aug 2025558 PMAQI
12th Aug 2025589 PMAQI
12th Aug 20255810 PMAQI
12th Aug 20255911 PMAQI
13th Aug 20256012 AMAQI
13th Aug 2025601 AMAQI
13th Aug 2025582 AMAQI
13th Aug 2025613 AMAQI
13th Aug 2025604 AMAQI
18°C15/23°C
13th Aug 2025625 AMAQI
5 AM13th Aug 2025626 AMAQI
13th Aug 2025647 AMAQI
13th Aug 2025648 AMAQI
13th Aug 2025649 AMAQI
13th Aug 20256410 AMAQI
13th Aug 20256211 AMAQI
13th Aug 20256012 PMAQI
12 PM13th Aug 2025601 PMAQI
13th Aug 2025602 PMAQI
13th Aug 2025613 PMAQI
13th Aug 2025604 PMAQI
13th Aug 2025585 PMAQI
13th Aug 2025576 PMAQI
13th Aug 2025587 PMAQI
7 PM13th Aug 2025568 PMAQI
13th Aug 2025549 PMAQI
12 AM
4 AM
16°C13/19°C
Day time
Avg. Highest Time
5 AM - 6 PM
39AQI
14 hours / Day
420 hours / Month
Avg. Lowest Time
5 AM - 7 PM
38AQI
15 hours / Day
450 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 6 PM (Avg. 39), while the lowest AQI was between 5 AM to 7 PM (Avg. 38).
Night time
Avg. Highest Time
12 AM - 11 PM
37AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM
37AQI
9 hours / Day
270 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).
2025 Days Vs Air Quality
Prospect Harbor, Maine, United States
2025
93%
129
7%
10
Total number of days with different AQI categories in last 226 days in 2025 (139 days remaining)
Good
129 DaysModerate
10 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 93%
Health Risk Level:
Very Low
In 2025, 93% of 226 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
Prospect Harbor, Maine, 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
21AQI
21AQI
2nd March 2025
19AQI
19AQI
3rd March 2025
19AQI
19AQI
4th March 2025
21AQI
21AQI
5th March 2025
18AQI
18AQI
1st April 2025
17AQI
17AQI
2nd April 2025
19AQI
19AQI
3rd April 2025
21AQI
21AQI
4th April 2025
20AQI
20AQI
5th April 2025
16AQI
16AQI
6th April 2025
15AQI
15AQI
7th April 2025
19AQI
19AQI
8th April 2025
19AQI
19AQI
9th April 2025
17AQI
17AQI
10th April 2025
17AQI
17AQI
11th April 2025
14AQI
14AQI
12th April 2025
16AQI
16AQI
13th April 2025
11AQI
11AQI
14th April 2025
15AQI
15AQI
15th April 2025
14AQI
14AQI
16th April 2025
11AQI
11AQI
17th April 2025
14AQI
14AQI
18th April 2025
14AQI
14AQI
19th April 2025
14AQI
14AQI
20th April 2025
14AQI
14AQI
21st April 2025
15AQI
15AQI
22nd April 2025
16AQI
16AQI
23rd April 2025
16AQI
16AQI
24th April 2025
20AQI
20AQI
25th April 2025
23AQI
23AQI
26th April 2025
24AQI
24AQI
27th April 2025
13AQI
13AQI
28th April 2025
19AQI
19AQI
29th April 2025
28AQI
28AQI
30th April 2025
30AQI
30AQI
1st May 2025
16AQI
16AQI
2nd May 2025
22AQI
22AQI
3rd May 2025
25AQI
25AQI
4th May 2025
21AQI
21AQI
5th May 2025
17AQI
17AQI
6th May 2025
21AQI
21AQI
7th May 2025
15AQI
15AQI
8th May 2025
21AQI
21AQI
9th May 2025
17AQI
17AQI
10th May 2025
13AQI
13AQI
11th May 2025
15AQI
15AQI
12th May 2025
18AQI
18AQI
13th May 2025
18AQI
18AQI
14th May 2025
19AQI
19AQI
15th May 2025
25AQI
25AQI
16th May 2025
23AQI
23AQI
17th May 2025
23AQI
23AQI
18th May 2025
15AQI
15AQI
19th May 2025
15AQI
15AQI
20th May 2025
13AQI
13AQI
21st May 2025
15AQI
15AQI
22nd May 2025
19AQI
19AQI
23rd May 2025
15AQI
15AQI
24th May 2025
12AQI
12AQI
25th May 2025
12AQI
12AQI
26th May 2025
15AQI
15AQI
27th May 2025
23AQI
23AQI
28th May 2025
26AQI
26AQI
29th May 2025
26AQI
26AQI
30th May 2025
20AQI
20AQI
31st May 2025
18AQI
18AQI
1st June 2025
21AQI
21AQI
2nd June 2025
19AQI
19AQI
3rd June 2025
22AQI
22AQI
4th June 2025
33AQI
33AQI
5th June 2025
44AQI
44AQI
6th June 2025
53AQI
53AQI
7th June 2025
49AQI
49AQI
8th June 2025
51AQI
51AQI
9th June 2025
55AQI
55AQI
10th June 2025
40AQI
40AQI
11th June 2025
36AQI
36AQI
12th June 2025
56AQI
56AQI
13th June 2025
30AQI
30AQI
14th June 2025
28AQI
28AQI
15th June 2025
28AQI
28AQI
16th June 2025
27AQI
27AQI
17th June 2025
21AQI
21AQI
18th June 2025
19AQI
19AQI
19th June 2025
21AQI
21AQI
20th June 2025
25AQI
25AQI
21st June 2025
20AQI
20AQI
22nd June 2025
27AQI
27AQI
23rd June 2025
38AQI
38AQI
24th June 2025
46AQI
46AQI
25th June 2025
48AQI
48AQI
26th June 2025
21AQI
21AQI
27th June 2025
22AQI
22AQI
28th June 2025
22AQI
22AQI
29th June 2025
17AQI
17AQI
30th June 2025
21AQI
21AQI
1st July 2025
28AQI
28AQI
2nd July 2025
29AQI
29AQI
3rd July 2025
37AQI
37AQI
4th July 2025
34AQI
34AQI
5th July 2025
23AQI
23AQI
6th July 2025
35AQI
35AQI
7th July 2025
47AQI
47AQI
8th July 2025
21AQI
21AQI
9th July 2025
23AQI
23AQI
10th July 2025
27AQI
27AQI
11th July 2025
28AQI
28AQI
12th July 2025
21AQI
21AQI
13th July 2025
19AQI
19AQI
14th July 2025
17AQI
17AQI
15th July 2025
30AQI
30AQI
16th July 2025
50AQI
50AQI
17th July 2025
21AQI
21AQI
18th July 2025
16AQI
16AQI
19th July 2025
26AQI
26AQI
20th July 2025
25AQI
25AQI
21st July 2025
24AQI
24AQI
22nd July 2025
17AQI
17AQI
23rd July 2025
27AQI
27AQI
24th July 2025
31AQI
31AQI
25th July 2025
43AQI
43AQI
26th July 2025
59AQI
59AQI
27th July 2025
55AQI
55AQI
28th July 2025
53AQI
53AQI
29th July 2025
49AQI
49AQI
30th July 2025
47AQI
47AQI
31st July 2025
57AQI
57AQI
1st August 2025
28AQI
28AQI
2nd August 2025
22AQI
22AQI
3rd August 2025
48AQI
48AQI
4th August 2025
69AQI
69AQI
5th August 2025
39AQI
39AQI
6th August 2025
24AQI
24AQI
7th August 2025
31AQI
31AQI
8th August 2025
43AQI
43AQI
9th August 2025
31AQI
31AQI
10th August 2025
28AQI
28AQI
11th August 2025
38AQI
38AQI
12th August 2025
56AQI
56AQI
20AQI
17AQI
18AQI
32AQI
33AQI
38AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202526AQI
5
30
31
26
4
27
4
10
2
129
10
Highest AQI recorded in
August38AQI
Lowest AQI recorded in
April17AQI
Most & Least Polluted Years Over the Last 1 Years
Most Polluted Year Recorded
2025(Avg.)
26AQILeast Polluted Year Recorded
2025(Avg.)
26AQIProspect Harbor's annual 2025 AQI (26) shows an average percentage change of NaN% (improved AQI) compared to previous years: .
