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
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2025
69AQILowest AQI recorded on
18th Aug 2025
14AQISame Day Analysis (10th August):
On this day, AQI across the 2 years varied significantly: 2026 ranks 1st highest AQI at 30 of Good air quality on the same day.
Day & Night AQI Trend: 10th Aug - 11th Aug 2026
Prospect Harbor, Maine, United States
AQI
Day
Night
.
6 AM10th Aug 2026
9 PM
5 AM11th Aug 2026
Day time
Avg. Highest Time
1PM10th Aug
42AQI
Avg. Lowest Time
7PM10th Aug
21AQI
Night time
Avg. Highest Time
2AM11th Aug
42AQI
Avg. Lowest Time
1AM11th Aug
21AQI
In the last 24 hours,
Prospect Harbor's AQI reached its highest point of 42 at 1 PM during the Day, while the lowest point, 21, was recorded at 1 AM during the Night between 10th Aug and 11th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Prospect Harbor, Maine, United States
JulAug
13th - 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 - 08th08th - 09th09th - 10th10th - 11th11th
Day
Night
13th Jul 2026326 AMAQI
13th Jul 2026337 AMAQI
13th Jul 2026318 AMAQI
13th Jul 2026269 AMAQI
13th Jul 20263410 AMAQI
13th Jul 20263011 AMAQI
13th Jul 20262812 PMAQI
13th Jul 2026301 PMAQI
13th Jul 2026342 PMAQI
13th Jul 2026303 PMAQI
13th Jul 2026324 PMAQI
13th Jul 2026315 PMAQI
13th Jul 2026376 PMAQI
13th Jul 2026247 PMAQI
13th Jul 2026348 PMAQI
13th Jul 2026309 PMAQI
13th Jul 20263010 PMAQI
13th Jul 20262611 PMAQI
14th Jul 20263412 AMAQI
14th Jul 2026301 AMAQI
14th Jul 2026222 AMAQI
14th Jul 2026243 AMAQI
14th Jul 2026324 AMAQI
14th Jul 2026305 AMAQI
15°C12/20°C
14th Jul 2026226 AMAQI
14th Jul 2026327 AMAQI
14th Jul 2026348 AMAQI
14th Jul 2026259 AMAQI
14th Jul 20262510 AMAQI
14th Jul 20262711 AMAQI
14th Jul 20262712 PMAQI
14th Jul 2026221 PMAQI
14th Jul 2026262 PMAQI
14th Jul 2026293 PMAQI
14th Jul 2026284 PMAQI
14th Jul 2026165 PMAQI
14th Jul 2026286 PMAQI
14th Jul 2026637 PMAQI
14th Jul 2026248 PMAQI
14th Jul 2026569 PMAQI
14th Jul 20261610 PMAQI
14th Jul 20263811 PMAQI
15th Jul 20263812 AMAQI
15th Jul 2026161 AMAQI
15th Jul 2026522 AMAQI
15th Jul 2026503 AMAQI
15th Jul 2026444 AMAQI
15th Jul 2026425 AMAQI
16°C12/21°C
15th Jul 2026446 AMAQI
15th Jul 2026467 AMAQI
15th Jul 2026508 AMAQI
15th Jul 2026549 AMAQI
15th Jul 20266010 AMAQI
15th Jul 20265711 AMAQI
15th Jul 20265312 PMAQI
15th Jul 2026451 PMAQI
15th Jul 2026402 PMAQI
15th Jul 2026463 PMAQI
15th Jul 2026424 PMAQI
15th Jul 2026405 PMAQI
15th Jul 2026336 PMAQI
15th Jul 2026327 PMAQI
15th Jul 2026308 PMAQI
15th Jul 2026259 PMAQI
15th Jul 20262510 PMAQI
15th Jul 20262811 PMAQI
16th Jul 20262812 AMAQI
16th Jul 2026301 AMAQI
16th Jul 2026222 AMAQI
16th Jul 2026163 AMAQI
16th Jul 2026314 AMAQI
16th Jul 2026145 AMAQI
20°C14/24°C
16th Jul 2026136 AMAQI
16th Jul 2026217 AMAQI
16th Jul 2026238 AMAQI
16th Jul 2026169 AMAQI
16th Jul 20262310 AMAQI
16th Jul 20262311 AMAQI
16th Jul 20261612 PMAQI
16th Jul 2026231 PMAQI
16th Jul 2026122 PMAQI
16th Jul 2026233 PMAQI
16th Jul 2026234 PMAQI
16th Jul 2026235 PMAQI
16th Jul 2026166 PMAQI
16th Jul 2026147 PMAQI
16th Jul 2026168 PMAQI
16th Jul 202689 PMAQI
16th Jul 20261010 PMAQI
16th Jul 20261311 PMAQI
17th Jul 20261012 AMAQI
17th Jul 2026201 AMAQI
17th Jul 2026192 AMAQI
17th Jul 2026353 AMAQI
17th Jul 2026404 AMAQI
17th Jul 2026255 AMAQI
17°C12/22°C
17th Jul 2026426 AMAQI
17th Jul 2026407 AMAQI
17th Jul 2026478 AMAQI
17th Jul 2026229 AMAQI
17th Jul 20263010 AMAQI
17th Jul 20264411 AMAQI
17th Jul 20263612 PMAQI
17th Jul 2026331 PMAQI
17th Jul 2026362 PMAQI
17th Jul 2026203 PMAQI
17th Jul 2026104 PMAQI
17th Jul 2026405 PMAQI
17th Jul 2026366 PMAQI
17th Jul 2026337 PMAQI
17th Jul 2026268 PMAQI
17th Jul 2026259 PMAQI
17th Jul 20264510 PMAQI
17th Jul 20264711 PMAQI
18th Jul 20265312 AMAQI
18th Jul 2026651 AMAQI
18th Jul 2026462 AMAQI
18th Jul 2026343 AMAQI
18th Jul 2026524 AMAQI
18th Jul 2026445 AMAQI
16°C11/21°C
18th Jul 2026506 AMAQI
18th Jul 2026427 AMAQI
18th Jul 2026388 AMAQI
18th Jul 2026569 AMAQI
18th Jul 20266810 AMAQI
18th Jul 20264011 AMAQI
18th Jul 20263612 PMAQI
18th Jul 2026271 PMAQI
18th Jul 2026422 PMAQI
18th Jul 2026293 PMAQI
18th Jul 2026404 PMAQI
18th Jul 2026515 PMAQI
18th Jul 2026536 PMAQI
18th Jul 2026547 PMAQI
18th Jul 2026528 PMAQI
18th Jul 2026539 PMAQI
18th Jul 20264210 PMAQI
18th Jul 20264611 PMAQI
19th Jul 20264412 AMAQI
19th Jul 2026481 AMAQI
19th Jul 2026532 AMAQI
19th Jul 2026603 AMAQI
19th Jul 2026644 AMAQI
19th Jul 2026745 AMAQI
13°C11/17°C
19th Jul 2026866 AMAQI
19th Jul 2026947 AMAQI
19th Jul 2026978 AMAQI
19th Jul 2026689 AMAQI
19th Jul 20265610 AMAQI
19th Jul 20263811 AMAQI
19th Jul 20263312 PMAQI
19th Jul 2026361 PMAQI
19th Jul 2026342 PMAQI
19th Jul 2026383 PMAQI
19th Jul 2026404 PMAQI
19th Jul 2026385 PMAQI
19th Jul 2026256 PMAQI
19th Jul 2026407 PMAQI
19th Jul 2026298 PMAQI
19th Jul 2026269 PMAQI
19th Jul 20261610 PMAQI
19th Jul 20262211 PMAQI
20th Jul 20262012 AMAQI
20th Jul 2026191 AMAQI
20th Jul 2026422 AMAQI
20th Jul 2026233 AMAQI
20th Jul 2026254 AMAQI
20th Jul 2026205 AMAQI
16°C13/20°C
20th Jul 2026246 AMAQI
20th Jul 2026227 AMAQI
20th Jul 2026248 AMAQI
20th Jul 2026269 AMAQI
20th Jul 20262210 AMAQI
20th Jul 20262211 AMAQI
20th Jul 20262312 PMAQI
20th Jul 2026161 PMAQI
20th Jul 2026212 PMAQI
20th Jul 2026253 PMAQI
20th Jul 2026424 PMAQI
20th Jul 2026255 PMAQI
20th Jul 2026426 PMAQI
20th Jul 2026297 PMAQI
20th Jul 2026468 PMAQI
20th Jul 2026279 PMAQI
20th Jul 20264210 PMAQI
21st Jul 20264412 AMAQI
21st Jul 2026331 AMAQI
21st Jul 2026382 AMAQI
21st Jul 2026363 AMAQI
21st Jul 2026364 AMAQI
21st Jul 2026365 AMAQI
16°C12/22°C
21st Jul 2026506 AMAQI
21st Jul 2026427 AMAQI
21st Jul 2026388 AMAQI
21st Jul 2026339 AMAQI
21st Jul 20263810 AMAQI
21st Jul 20264411 AMAQI
21st Jul 20264012 PMAQI
21st Jul 2026451 PMAQI
21st Jul 2026362 PMAQI
21st Jul 2026403 PMAQI
21st Jul 2026304 PMAQI
21st Jul 2026385 PMAQI
21st Jul 2026386 PMAQI
21st Jul 2026297 PMAQI
21st Jul 2026298 PMAQI
21st Jul 2026329 PMAQI
21st Jul 20262110 PMAQI
21st Jul 20262911 PMAQI
22nd Jul 20263812 AMAQI
22nd Jul 2026401 AMAQI
22nd Jul 2026332 AMAQI
22nd Jul 2026283 AMAQI
22nd Jul 2026284 AMAQI
22nd Jul 2026295 AMAQI
14°C12/16°C
22nd Jul 2026266 AMAQI
22nd Jul 2026247 AMAQI
22nd Jul 2026178 AMAQI
22nd Jul 2026299 AMAQI
22nd Jul 20262510 AMAQI
22nd Jul 20262611 AMAQI
22nd Jul 20262912 PMAQI
22nd Jul 2026421 PMAQI
22nd Jul 2026292 PMAQI
22nd Jul 2026443 PMAQI
22nd Jul 2026214 PMAQI
22nd Jul 2026215 PMAQI
22nd Jul 2026386 PMAQI
22nd Jul 2026237 PMAQI
22nd Jul 2026298 PMAQI
22nd Jul 2026299 PMAQI
22nd Jul 20262910 PMAQI
22nd Jul 20262511 PMAQI
23rd Jul 20262512 AMAQI
23rd Jul 2026211 AMAQI
23rd Jul 2026212 AMAQI
23rd Jul 2026253 AMAQI
23rd Jul 2026164 AMAQI
23rd Jul 2026145 AMAQI
14°C13/17°C
23rd Jul 202686 AMAQI
23rd Jul 2026147 AMAQI
23rd Jul 202688 AMAQI
23rd Jul 202689 AMAQI
23rd Jul 20261410 AMAQI
23rd Jul 2026611 AMAQI
23rd Jul 20262212 PMAQI
23rd Jul 2026151 PMAQI
23rd Jul 2026142 PMAQI
23rd Jul 2026143 PMAQI
23rd Jul 2026174 PMAQI
23rd Jul 2026165 PMAQI
23rd Jul 2026156 PMAQI
23rd Jul 2026227 PMAQI
23rd Jul 2026278 PMAQI
23rd Jul 2026279 PMAQI
23rd Jul 20262310 PMAQI
23rd Jul 20262511 PMAQI
24th Jul 20262912 AMAQI
24th Jul 2026271 AMAQI
24th Jul 2026332 AMAQI
24th Jul 2026363 AMAQI
24th Jul 2026424 AMAQI
24th Jul 2026255 AMAQI
16°C13/21°C
24th Jul 2026346 AMAQI
24th Jul 2026387 AMAQI
24th Jul 2026338 AMAQI
24th Jul 2026319 AMAQI
24th Jul 20262910 AMAQI
24th Jul 20264211 AMAQI
24th Jul 20264712 PMAQI
24th Jul 2026381 PMAQI
24th Jul 2026382 PMAQI
24th Jul 2026323 PMAQI
24th Jul 2026304 PMAQI
24th Jul 2026365 PMAQI
24th Jul 2026336 PMAQI
24th Jul 2026297 PMAQI
24th Jul 2026338 PMAQI
24th Jul 2026339 PMAQI
24th Jul 20263310 PMAQI
24th Jul 20263111 PMAQI
25th Jul 20264012 AMAQI
25th Jul 2026381 AMAQI
25th Jul 2026382 AMAQI
25th Jul 2026383 AMAQI
25th Jul 2026424 AMAQI
25th Jul 2026475 AMAQI
15°C11/21°C
25th Jul 2026406 AMAQI
25th Jul 2026487 AMAQI
25th Jul 2026428 AMAQI
25th Jul 2026429 AMAQI
25th Jul 20264010 AMAQI
25th Jul 20263011 AMAQI
25th Jul 20263012 PMAQI
25th Jul 2026381 PMAQI
25th Jul 2026422 PMAQI
25th Jul 2026343 PMAQI
25th Jul 2026424 PMAQI
25th Jul 2026485 PMAQI
25th Jul 2026386 PMAQI
25th Jul 2026307 PMAQI
25th Jul 2026478 PMAQI
25th Jul 2026479 PMAQI
25th Jul 20264410 PMAQI
25th Jul 20263611 PMAQI
26th Jul 20264012 AMAQI
26th Jul 2026601 AMAQI
26th Jul 2026542 AMAQI
26th Jul 2026403 AMAQI
26th Jul 2026544 AMAQI
26th Jul 2026385 AMAQI
14°C11/20°C
26th Jul 2026426 AMAQI
26th Jul 2026367 AMAQI
26th Jul 2026388 AMAQI
26th Jul 2026409 AMAQI
26th Jul 20263810 AMAQI
26th Jul 20264211 AMAQI
26th Jul 20264412 PMAQI
26th Jul 2026401 PMAQI
26th Jul 2026292 PMAQI
26th Jul 2026293 PMAQI
26th Jul 2026304 PMAQI
26th Jul 2026425 PMAQI
26th Jul 2026276 PMAQI
26th Jul 2026497 PMAQI
26th Jul 2026338 PMAQI
26th Jul 2026239 PMAQI
26th Jul 20263610 PMAQI
26th Jul 20264711 PMAQI
27th Jul 20264212 AMAQI
27th Jul 2026341 AMAQI
27th Jul 2026312 AMAQI
27th Jul 2026333 AMAQI
27th Jul 2026404 AMAQI
27th Jul 2026445 AMAQI
13°C9/20°C
27th Jul 2026316 AMAQI
27th Jul 2026347 AMAQI
27th Jul 2026388 AMAQI
27th Jul 2026389 AMAQI
27th Jul 20263810 AMAQI
27th Jul 20264011 AMAQI
27th Jul 20264012 PMAQI
27th Jul 2026461 PMAQI
27th Jul 2026462 PMAQI
27th Jul 2026423 PMAQI
27th Jul 2026444 PMAQI
27th Jul 2026365 PMAQI
27th Jul 2026386 PMAQI
27th Jul 2026297 PMAQI
27th Jul 2026248 PMAQI
27th Jul 2026239 PMAQI
27th Jul 20263310 PMAQI
27th Jul 20263311 PMAQI
28th Jul 20262912 AMAQI
28th Jul 2026401 AMAQI
28th Jul 2026402 AMAQI
28th Jul 2026343 AMAQI
28th Jul 2026404 AMAQI
28th Jul 2026425 AMAQI
15°C11/21°C
28th Jul 2026446 AMAQI
28th Jul 2026427 AMAQI
28th Jul 2026368 AMAQI
28th Jul 2026389 AMAQI
28th Jul 20264410 AMAQI
28th Jul 20264011 AMAQI
28th Jul 20264012 PMAQI
28th Jul 2026301 PMAQI
28th Jul 2026472 PMAQI
28th Jul 2026423 PMAQI
28th Jul 2026404 PMAQI
28th Jul 2026345 PMAQI
28th Jul 2026336 PMAQI
28th Jul 2026217 PMAQI
28th Jul 2026278 PMAQI
28th Jul 2026279 PMAQI
28th Jul 20263410 PMAQI
28th Jul 20264011 PMAQI
29th Jul 20264212 AMAQI
29th Jul 2026491 AMAQI
29th Jul 2026542 AMAQI
29th Jul 2026483 AMAQI
29th Jul 2026504 AMAQI
29th Jul 2026465 AMAQI
15°C11/20°C
29th Jul 2026386 AMAQI
29th Jul 2026387 AMAQI
29th Jul 2026318 AMAQI
29th Jul 2026369 AMAQI
29th Jul 20263110 AMAQI
29th Jul 20263811 AMAQI
29th Jul 20262512 PMAQI
29th Jul 2026381 PMAQI
29th Jul 2026402 PMAQI
29th Jul 2026523 PMAQI
29th Jul 2026254 PMAQI
29th Jul 2026485 PMAQI
29th Jul 2026256 PMAQI
29th Jul 2026317 PMAQI
29th Jul 2026388 PMAQI
29th Jul 2026469 PMAQI
29th Jul 20263410 PMAQI
29th Jul 20264011 PMAQI
30th Jul 20264412 AMAQI
30th Jul 2026331 AMAQI
30th Jul 2026462 AMAQI
30th Jul 2026383 AMAQI
30th Jul 2026234 AMAQI
30th Jul 2026275 AMAQI
14°C12/18°C
30th Jul 2026426 AMAQI
30th Jul 2026447 AMAQI
30th Jul 2026508 AMAQI
30th Jul 2026409 AMAQI
30th Jul 20264410 AMAQI
30th Jul 20263811 AMAQI
30th Jul 20264212 PMAQI
30th Jul 2026451 PMAQI
30th Jul 2026212 PMAQI
30th Jul 2026383 PMAQI
30th Jul 2026254 PMAQI
30th Jul 2026385 PMAQI
30th Jul 2026406 PMAQI
30th Jul 2026377 PMAQI
30th Jul 2026368 PMAQI
30th Jul 2026259 PMAQI
30th Jul 20262510 PMAQI
30th Jul 20262511 PMAQI
31st Jul 20262712 AMAQI
31st Jul 2026381 AMAQI
31st Jul 2026252 AMAQI
31st Jul 2026253 AMAQI
31st Jul 2026384 AMAQI
31st Jul 2026385 AMAQI
14°C12/17°C
31st Jul 2026316 AMAQI
31st Jul 2026407 AMAQI
31st Jul 2026338 AMAQI
31st Jul 2026299 AMAQI
31st Jul 20263810 AMAQI
31st Jul 20263311 AMAQI
31st Jul 20263112 PMAQI
31st Jul 2026251 PMAQI
31st Jul 2026342 PMAQI
31st Jul 2026293 PMAQI
31st Jul 2026254 PMAQI
31st Jul 2026295 PMAQI
31st Jul 2026366 PMAQI
31st Jul 2026347 PMAQI
31st Jul 2026298 PMAQI
31st Jul 2026349 PMAQI
31st Jul 20262910 PMAQI
31st Jul 20263411 PMAQI
1st Aug 20263412 AMAQI
1st Aug 2026401 AMAQI
1st Aug 2026402 AMAQI
1st Aug 2026363 AMAQI
1st Aug 2026364 AMAQI
1st Aug 2026235 AMAQI
16°C14/19°C
1st Aug 2026346 AMAQI
1st Aug 2026347 AMAQI
1st Aug 2026348 AMAQI
1st Aug 2026389 AMAQI
1st Aug 20263610 AMAQI
1st Aug 20263811 AMAQI
1st Aug 20264912 PMAQI
1st Aug 2026461 PMAQI
1st Aug 2026442 PMAQI
1st Aug 2026403 PMAQI
1st Aug 2026364 PMAQI
1st Aug 2026345 PMAQI
1st Aug 2026366 PMAQI
1st Aug 2026367 PMAQI
1st Aug 2026308 PMAQI
1st Aug 2026329 PMAQI
1st Aug 20264010 PMAQI
1st Aug 20263011 PMAQI
2nd Aug 20264012 AMAQI
2nd Aug 2026381 AMAQI
2nd Aug 2026332 AMAQI
2nd Aug 2026443 AMAQI
2nd Aug 2026324 AMAQI
2nd Aug 2026365 AMAQI
16°C13/21°C
2nd Aug 2026516 AMAQI
2nd Aug 2026547 AMAQI
2nd Aug 2026558 AMAQI
2nd Aug 2026539 AMAQI
2nd Aug 20265210 AMAQI
2nd Aug 20263611 AMAQI
2nd Aug 20265112 PMAQI
2nd Aug 2026481 PMAQI
2nd Aug 2026452 PMAQI
2nd Aug 2026403 PMAQI
2nd Aug 2026344 PMAQI
2nd Aug 2026325 PMAQI
2nd Aug 2026426 PMAQI
2nd Aug 2026367 PMAQI
2nd Aug 2026308 PMAQI
2nd Aug 2026279 PMAQI
2nd Aug 20264010 PMAQI
2nd Aug 20262311 PMAQI
3rd Aug 20262512 AMAQI
3rd Aug 2026321 AMAQI
3rd Aug 2026362 AMAQI
3rd Aug 2026383 AMAQI
3rd Aug 2026384 AMAQI
3rd Aug 2026405 AMAQI
14°C13/16°C
3rd Aug 2026346 AMAQI
3rd Aug 2026367 AMAQI
3rd Aug 2026328 AMAQI
3rd Aug 2026389 AMAQI
3rd Aug 20264810 AMAQI
3rd Aug 20264611 AMAQI
3rd Aug 20264212 PMAQI
3rd Aug 2026321 PMAQI
3rd Aug 2026422 PMAQI
3rd Aug 2026423 PMAQI
3rd Aug 2026384 PMAQI
3rd Aug 2026185 PMAQI
3rd Aug 2026236 PMAQI
3rd Aug 2026317 PMAQI
3rd Aug 2026298 PMAQI
3rd Aug 2026299 PMAQI
3rd Aug 20262710 PMAQI
3rd Aug 20262111 PMAQI
4th Aug 20261612 AMAQI
4th Aug 2026171 AMAQI
4th Aug 2026172 AMAQI
4th Aug 2026243 AMAQI
4th Aug 2026264 AMAQI
4th Aug 2026255 AMAQI
15°C13/17°C
4th Aug 2026246 AMAQI
4th Aug 2026227 AMAQI
4th Aug 2026228 AMAQI
4th Aug 2026229 AMAQI
4th Aug 20262610 AMAQI
4th Aug 20261911 AMAQI
4th Aug 20261012 PMAQI
4th Aug 2026231 PMAQI
4th Aug 2026142 PMAQI
4th Aug 2026383 PMAQI
4th Aug 2026304 PMAQI
4th Aug 2026365 PMAQI
4th Aug 2026386 PMAQI
4th Aug 2026407 PMAQI
4th Aug 2026338 PMAQI
4th Aug 2026259 PMAQI
4th Aug 20264010 PMAQI
4th Aug 20264211 PMAQI
5th Aug 20264212 AMAQI
5th Aug 2026291 AMAQI
5th Aug 2026462 AMAQI
5th Aug 2026443 AMAQI
5th Aug 2026404 AMAQI
5th Aug 2026325 AMAQI
19°C14/25°C
5th Aug 2026426 AMAQI
5th Aug 2026427 AMAQI
5th Aug 2026298 AMAQI
5th Aug 2026339 AMAQI
5th Aug 20264010 AMAQI
5th Aug 20262911 AMAQI
5th Aug 20265412 PMAQI
5th Aug 2026461 PMAQI
5th Aug 2026462 PMAQI
5th Aug 2026443 PMAQI
5th Aug 2026254 PMAQI
5th Aug 2026295 PMAQI
5th Aug 2026366 PMAQI
5th Aug 2026297 PMAQI
5th Aug 2026428 PMAQI
5th Aug 2026409 PMAQI
5th Aug 20264010 PMAQI
5th Aug 20263811 PMAQI
6th Aug 20264512 AMAQI
6th Aug 2026321 AMAQI
6th Aug 2026442 AMAQI
6th Aug 2026363 AMAQI
6th Aug 2026484 AMAQI
6th Aug 2026325 AMAQI
19°C14/24°C
6th Aug 2026406 AMAQI
6th Aug 2026277 AMAQI
6th Aug 2026428 AMAQI
6th Aug 2026449 AMAQI
6th Aug 20264910 AMAQI
6th Aug 20265311 AMAQI
6th Aug 20264912 PMAQI
6th Aug 2026421 PMAQI
6th Aug 2026502 PMAQI
6th Aug 2026503 PMAQI
6th Aug 2026444 PMAQI
6th Aug 2026445 PMAQI
6th Aug 2026426 PMAQI
6th Aug 2026427 PMAQI
6th Aug 2026448 PMAQI
6th Aug 2026409 PMAQI
6th Aug 20264210 PMAQI
6th Aug 20265011 PMAQI
7th Aug 20264812 AMAQI
7th Aug 2026421 AMAQI
7th Aug 2026422 AMAQI
7th Aug 2026383 AMAQI
7th Aug 2026404 AMAQI
7th Aug 2026405 AMAQI
18°C12/24°C
7th Aug 2026406 AMAQI
7th Aug 2026447 AMAQI
7th Aug 2026408 AMAQI
7th Aug 2026469 AMAQI
7th Aug 20264610 AMAQI
7th Aug 20263611 AMAQI
7th Aug 20263812 PMAQI
7th Aug 2026381 PMAQI
7th Aug 2026362 PMAQI
7th Aug 2026403 PMAQI
7th Aug 2026484 PMAQI
7th Aug 2026445 PMAQI
7th Aug 2026446 PMAQI
7th Aug 2026427 PMAQI
7th Aug 2026368 PMAQI
7th Aug 2026409 PMAQI
7th Aug 20263810 PMAQI
7th Aug 20263811 PMAQI
8th Aug 20264012 AMAQI
8th Aug 2026381 AMAQI
8th Aug 2026382 AMAQI
8th Aug 2026273 AMAQI
8th Aug 2026424 AMAQI
8th Aug 2026295 AMAQI
19°C14/25°C
8th Aug 2026406 AMAQI
8th Aug 2026387 AMAQI
8th Aug 2026368 AMAQI
8th Aug 2026389 AMAQI
8th Aug 20263810 AMAQI
8th Aug 20264011 AMAQI
8th Aug 20264912 PMAQI
8th Aug 2026491 PMAQI
8th Aug 2026482 PMAQI
8th Aug 2026503 PMAQI
8th Aug 2026484 PMAQI
8th Aug 2026495 PMAQI
8th Aug 2026506 PMAQI
8th Aug 2026467 PMAQI
8th Aug 2026468 PMAQI
8th Aug 2026409 PMAQI
8th Aug 20264010 PMAQI
8th Aug 20263811 PMAQI
9th Aug 20263312 AMAQI
9th Aug 2026421 AMAQI
9th Aug 2026332 AMAQI
9th Aug 2026273 AMAQI
9th Aug 2026324 AMAQI
9th Aug 2026235 AMAQI
15°C13/19°C
9th Aug 2026216 AMAQI
9th Aug 2026217 AMAQI
9th Aug 2026278 AMAQI
9th Aug 2026319 AMAQI
9th Aug 20262710 AMAQI
9th Aug 20262611 AMAQI
9th Aug 20262912 PMAQI
9th Aug 2026381 PMAQI
9th Aug 2026382 PMAQI
9th Aug 2026253 PMAQI
9th Aug 2026234 PMAQI
9th Aug 2026255 PMAQI
9th Aug 2026256 PMAQI
9th Aug 2026237 PMAQI
9th Aug 2026278 PMAQI
9th Aug 2026339 PMAQI
9th Aug 20264210 PMAQI
9th Aug 20262511 PMAQI
10th Aug 20262912 AMAQI
10th Aug 2026251 AMAQI
10th Aug 2026212 AMAQI
10th Aug 2026293 AMAQI
10th Aug 2026424 AMAQI
10th Aug 2026275 AMAQI
16°C13/21°C
10th Aug 2026216 AMAQI
10th Aug 2026217 AMAQI
10th Aug 2026278 AMAQI
10th Aug 2026409 AMAQI
10th Aug 20262910 AMAQI
10th Aug 20263811 AMAQI
10th Aug 20264012 PMAQI
10th Aug 2026421 PMAQI
10th Aug 2026382 PMAQI
10th Aug 2026383 PMAQI
10th Aug 2026384 PMAQI
10th Aug 2026365 PMAQI
10th Aug 2026336 PMAQI
10th Aug 2026217 PMAQI
10th Aug 2026248 PMAQI
10th Aug 2026239 PMAQI
10th Aug 20262510 PMAQI
10th Aug 20262111 PMAQI
11th Aug 20263312 AMAQI
11th Aug 2026211 AMAQI
11th Aug 2026422 AMAQI
11th Aug 2026423 AMAQI
11th Aug 2026404 AMAQI
11th Aug 2026385 AMAQI
18°C13/23°C
11th Aug 2026336 AMAQI
6 AM11th Aug 2026257 AMAQI
11th Aug 2026288 AMAQI
11th Aug 2026429 AMAQI
11th Aug 20263810 AMAQI
11th Aug 20262511 AMAQI
11th Aug 20262512 PMAQI
11th Aug 2026291 PMAQI
1 PM11th Aug 2026252 PMAQI
11th Aug 2026213 PMAQI
11th Aug 2026254 PMAQI
11th Aug 2026255 PMAQI
11th Aug 2026236 PMAQI
11th Aug 2026257 PMAQI
9 PM
1 AM
5 AM
18°C14/24°C
Day time
Avg. Highest Time
10 AM
38AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
9 PM
32AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 10 AM (Avg. 38), while the lowest AQI was between 9 PM to 9 PM (Avg. 32).
Night time
Avg. Highest Time
4 AM
38AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
10 PM
32AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 4 AM (Avg. 38), while the lowest AQI was between 10 PM to 10 PM (Avg. 32).
2026 Days Vs Air Quality
Prospect Harbor, Maine, United States
2026
97%
212
3%
7
Total number of days with different AQI categories in last 223 days in 2026 (142 days remaining)
Good
212 DaysModerate
7 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 97%
Health Risk Level:
Very Low
In 2026, 97% of 223 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 2026
AQI (US)
PM₂.₅
PM₁₀
CO
SO₂
NO₂
O₃
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
19AQI (US)
19AQI (US)
2nd January 2026
15AQI (US)
15AQI (US)
3rd January 2026
10AQI (US)
10AQI (US)
4th January 2026
16AQI (US)
16AQI (US)
5th January 2026
28AQI (US)
28AQI (US)
6th January 2026
49AQI (US)
49AQI (US)
7th January 2026
20AQI (US)
20AQI (US)
8th January 2026
16AQI (US)
16AQI (US)
9th January 2026
20AQI (US)
20AQI (US)
10th January 2026
16AQI (US)
16AQI (US)
11th January 2026
11AQI (US)
11AQI (US)
12th January 2026
11AQI (US)
11AQI (US)
13th January 2026
12AQI (US)
12AQI (US)
14th January 2026
46AQI (US)
46AQI (US)
15th January 2026
25AQI (US)
25AQI (US)
16th January 2026
28AQI (US)
28AQI (US)
17th January 2026
14AQI (US)
14AQI (US)
18th January 2026
27AQI (US)
27AQI (US)
19th January 2026
22AQI (US)
22AQI (US)
20th January 2026
15AQI (US)
15AQI (US)
21st January 2026
13AQI (US)
13AQI (US)
22nd January 2026
49AQI (US)
49AQI (US)
23rd January 2026
54AQI (US)
54AQI (US)
24th January 2026
47AQI (US)
47AQI (US)
25th January 2026
44AQI (US)
44AQI (US)
26th January 2026
47AQI (US)
47AQI (US)
27th January 2026
44AQI (US)
44AQI (US)
28th January 2026
46AQI (US)
46AQI (US)
29th January 2026
51AQI (US)
51AQI (US)
30th January 2026
49AQI (US)
49AQI (US)
31st January 2026
46AQI (US)
46AQI (US)
1st February 2026
46AQI (US)
46AQI (US)
2nd February 2026
49AQI (US)
49AQI (US)
3rd February 2026
49AQI (US)
49AQI (US)
4th February 2026
51AQI (US)
51AQI (US)
5th February 2026
49AQI (US)
49AQI (US)
6th February 2026
40AQI (US)
40AQI (US)
7th February 2026
40AQI (US)
40AQI (US)
8th February 2026
45AQI (US)
45AQI (US)
9th February 2026
46AQI (US)
46AQI (US)
10th February 2026
46AQI (US)
46AQI (US)
11th February 2026
46AQI (US)
46AQI (US)
12th February 2026
46AQI (US)
46AQI (US)
13th February 2026
53AQI (US)
53AQI (US)
14th February 2026
51AQI (US)
51AQI (US)
15th February 2026
42AQI (US)
42AQI (US)
16th February 2026
44AQI (US)
44AQI (US)
17th February 2026
45AQI (US)
45AQI (US)
18th February 2026
41AQI (US)
41AQI (US)
19th February 2026
40AQI (US)
40AQI (US)
20th February 2026
43AQI (US)
43AQI (US)
21st February 2026
38AQI (US)
38AQI (US)
22nd February 2026
35AQI (US)
35AQI (US)
23rd February 2026
40AQI (US)
40AQI (US)
24th February 2026
44AQI (US)
44AQI (US)
25th February 2026
42AQI (US)
42AQI (US)
26th February 2026
34AQI (US)
34AQI (US)
27th February 2026
35AQI (US)
35AQI (US)
28th February 2026
37AQI (US)
37AQI (US)
1st March 2026
39AQI (US)
39AQI (US)
2nd March 2026
52AQI (US)
52AQI (US)
3rd March 2026
45AQI (US)
45AQI (US)
4th March 2026
45AQI (US)
45AQI (US)
5th March 2026
42AQI (US)
42AQI (US)
6th March 2026
36AQI (US)
36AQI (US)
7th March 2026
36AQI (US)
36AQI (US)
8th March 2026
38AQI (US)
38AQI (US)
9th March 2026
39AQI (US)
39AQI (US)
10th March 2026
34AQI (US)
34AQI (US)
11th March 2026
41AQI (US)
41AQI (US)
12th March 2026
40AQI (US)
40AQI (US)
13th March 2026
39AQI (US)
39AQI (US)
14th March 2026
36AQI (US)
36AQI (US)
15th March 2026
36AQI (US)
36AQI (US)
16th March 2026
37AQI (US)
37AQI (US)
17th March 2026
35AQI (US)
35AQI (US)
18th March 2026
32AQI (US)
32AQI (US)
19th March 2026
32AQI (US)
32AQI (US)
20th March 2026
36AQI (US)
36AQI (US)
21st March 2026
34AQI (US)
34AQI (US)
22nd March 2026
35AQI (US)
35AQI (US)
23rd March 2026
41AQI (US)
41AQI (US)
24th March 2026
37AQI (US)
37AQI (US)
25th March 2026
34AQI (US)
34AQI (US)
26th March 2026
29AQI (US)
29AQI (US)
27th March 2026
32AQI (US)
32AQI (US)
28th March 2026
33AQI (US)
33AQI (US)
29th March 2026
29AQI (US)
29AQI (US)
30th March 2026
27AQI (US)
27AQI (US)
31st March 2026
25AQI (US)
25AQI (US)
1st April 2026
32AQI (US)
32AQI (US)
2nd April 2026
34AQI (US)
34AQI (US)
3rd April 2026
28AQI (US)
28AQI (US)
4th April 2026
31AQI (US)
31AQI (US)
5th April 2026
30AQI (US)
30AQI (US)
6th April 2026
27AQI (US)
27AQI (US)
7th April 2026
27AQI (US)
27AQI (US)
8th April 2026
31AQI (US)
31AQI (US)
9th April 2026
28AQI (US)
28AQI (US)
10th April 2026
30AQI (US)
30AQI (US)
11th April 2026
32AQI (US)
32AQI (US)
12th April 2026
29AQI (US)
29AQI (US)
13th April 2026
32AQI (US)
32AQI (US)
14th April 2026
33AQI (US)
33AQI (US)
15th April 2026
33AQI (US)
33AQI (US)
16th April 2026
31AQI (US)
31AQI (US)
17th April 2026
18th April 2026
33AQI (US)
33AQI (US)
19th April 2026
35AQI (US)
35AQI (US)
20th April 2026
29AQI (US)
29AQI (US)
21st April 2026
26AQI (US)
26AQI (US)
22nd April 2026
23rd April 2026
25AQI (US)
25AQI (US)
24th April 2026
29AQI (US)
29AQI (US)
25th April 2026
32AQI (US)
32AQI (US)
26th April 2026
34AQI (US)
34AQI (US)
27th April 2026
28AQI (US)
28AQI (US)
28th April 2026
24AQI (US)
24AQI (US)
29th April 2026
20AQI (US)
20AQI (US)
30th April 2026
24AQI (US)
24AQI (US)
1st May 2026
27AQI (US)
27AQI (US)
2nd May 2026
23AQI (US)
23AQI (US)
3rd May 2026
21AQI (US)
21AQI (US)
4th May 2026
26AQI (US)
26AQI (US)
5th May 2026
25AQI (US)
25AQI (US)
6th May 2026
24AQI (US)
24AQI (US)
7th May 2026
27AQI (US)
27AQI (US)
8th May 2026
27AQI (US)
27AQI (US)
9th May 2026
10th May 2026
26AQI (US)
26AQI (US)
11th May 2026
29AQI (US)
29AQI (US)
12th May 2026
25AQI (US)
25AQI (US)
13th May 2026
27AQI (US)
27AQI (US)
14th May 2026
18AQI (US)
18AQI (US)
15th May 2026
37AQI (US)
37AQI (US)
16th May 2026
43AQI (US)
43AQI (US)
17th May 2026
48AQI (US)
48AQI (US)
18th May 2026
49AQI (US)
49AQI (US)
19th May 2026
52AQI (US)
52AQI (US)
20th May 2026
47AQI (US)
47AQI (US)
21st May 2026
40AQI (US)
40AQI (US)
22nd May 2026
36AQI (US)
36AQI (US)
23rd May 2026
42AQI (US)
42AQI (US)
24th May 2026
40AQI (US)
40AQI (US)
25th May 2026
42AQI (US)
42AQI (US)
26th May 2026
30AQI (US)
30AQI (US)
27th May 2026
26AQI (US)
26AQI (US)
28th May 2026
20AQI (US)
20AQI (US)
29th May 2026
14AQI (US)
14AQI (US)
30th May 2026
22AQI (US)
22AQI (US)
31st May 2026
23AQI (US)
23AQI (US)
1st June 2026
24AQI (US)
24AQI (US)
2nd June 2026
24AQI (US)
24AQI (US)
3rd June 2026
19AQI (US)
19AQI (US)
4th June 2026
23AQI (US)
23AQI (US)
5th June 2026
28AQI (US)
28AQI (US)
6th June 2026
26AQI (US)
26AQI (US)
7th June 2026
24AQI (US)
24AQI (US)
8th June 2026
18AQI (US)
18AQI (US)
9th June 2026
22AQI (US)
22AQI (US)
10th June 2026
23AQI (US)
23AQI (US)
11th June 2026
30AQI (US)
30AQI (US)
12th June 2026
25AQI (US)
25AQI (US)
13th June 2026
21AQI (US)
21AQI (US)
14th June 2026
23AQI (US)
23AQI (US)
15th June 2026
26AQI (US)
26AQI (US)
16th June 2026
23AQI (US)
23AQI (US)
17th June 2026
28AQI (US)
28AQI (US)
18th June 2026
25AQI (US)
25AQI (US)
19th June 2026
20AQI (US)
20AQI (US)
20th June 2026
22AQI (US)
22AQI (US)
21st June 2026
19AQI (US)
19AQI (US)
22nd June 2026
21AQI (US)
21AQI (US)
23rd June 2026
21AQI (US)
21AQI (US)
24th June 2026
19AQI (US)
19AQI (US)
25th June 2026
26AQI (US)
26AQI (US)
26th June 2026
26AQI (US)
26AQI (US)
27th June 2026
29AQI (US)
29AQI (US)
28th June 2026
26AQI (US)
26AQI (US)
29th June 2026
27AQI (US)
27AQI (US)
30th June 2026
34AQI (US)
34AQI (US)
1st July 2026
24AQI (US)
24AQI (US)
2nd July 2026
31AQI (US)
31AQI (US)
3rd July 2026
37AQI (US)
37AQI (US)
4th July 2026
31AQI (US)
31AQI (US)
5th July 2026
28AQI (US)
28AQI (US)
6th July 2026
23AQI (US)
23AQI (US)
7th July 2026
26AQI (US)
26AQI (US)
8th July 2026
27AQI (US)
27AQI (US)
9th July 2026
24AQI (US)
24AQI (US)
10th July 2026
29AQI (US)
29AQI (US)
11th July 2026
24AQI (US)
24AQI (US)
12th July 2026
24AQI (US)
24AQI (US)
13th July 2026
29AQI (US)
29AQI (US)
14th July 2026
30AQI (US)
30AQI (US)
15th July 2026
41AQI (US)
41AQI (US)
16th July 2026
19AQI (US)
19AQI (US)
17th July 2026
32AQI (US)
32AQI (US)
18th July 2026
46AQI (US)
46AQI (US)
19th July 2026
48AQI (US)
48AQI (US)
20th July 2026
27AQI (US)
27AQI (US)
21st July 2026
36AQI (US)
36AQI (US)
22nd July 2026
29AQI (US)
29AQI (US)
23rd July 2026
17AQI (US)
17AQI (US)
24th July 2026
34AQI (US)
34AQI (US)
25th July 2026
40AQI (US)
40AQI (US)
26th July 2026
40AQI (US)
40AQI (US)
27th July 2026
37AQI (US)
37AQI (US)
28th July 2026
37AQI (US)
37AQI (US)
29th July 2026
39AQI (US)
39AQI (US)
30th July 2026
36AQI (US)
36AQI (US)
31st July 2026
32AQI (US)
32AQI (US)
1st August 2026
36AQI (US)
36AQI (US)
2nd August 2026
40AQI (US)
40AQI (US)
3rd August 2026
34AQI (US)
34AQI (US)
4th August 2026
26AQI (US)
26AQI (US)
5th August 2026
38AQI (US)
38AQI (US)
6th August 2026
43AQI (US)
43AQI (US)
7th August 2026
41AQI (US)
41AQI (US)
8th August 2026
42AQI (US)
42AQI (US)
9th August 2026
29AQI (US)
29AQI (US)
10th August 2026
30AQI (US)
30AQI (US)
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026
29AQI (US)
43AQI (US)
36AQI (US)
30AQI (US)
31AQI (US)
24AQI (US)
32AQI (US)
36AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202632AQI (US)
29
2
25
3
30
1
28
29
1
30
31
10
212
7
Highest AQI (US) recorded in
February43AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202525AQI (US)
5
30
31
26
4
27
4
28
3
30
31
30
31
269
11
Highest AQI (US) recorded in
July33AQI (US)
Lowest AQI (US) recorded in
April17AQI (US)
Most & Least Polluted Years Over the Last 2 Years
Most Polluted Year Recorded
2026(Avg.)
32AQI (US)Least Polluted Year Recorded
2025(Avg.)
25AQI (US)Prospect Harbor's annual 2026 AQI (US) (32) shows an average percentage change of 28.000000000000004% (worsened AQI (US)) compared to previous years: 2025 (25).
