Fountain Hills, Arizona, 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+
October Air Quality Analysis
Fountain Hills, Arizona, United States
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Oct 2025
46AQILowest AQI recorded on
11th Oct 2025
11AQISame Day Analysis (25th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 28 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 25th Oct - 26th Oct 2025
Fountain Hills, Arizona, United States
AQI
Day
Night
.
6 AM25th Oct 2025
5 PM
5 AM26th Oct 2025
Day time
Avg. Highest Time
9AM25th Oct
33AQI
Avg. Lowest Time
5PM25th Oct
18AQI
Night time
Avg. Highest Time
12AM26th Oct
39AQI
Avg. Lowest Time
6PM25th Oct
18AQI
In the last 24 hours,
Fountain Hills's AQI reached its highest point of 39 at 12 AM during the Night, while the lowest point, 18, was recorded at 6 PM during the Night between 25th Oct and 26th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Fountain Hills, Arizona, United States
SepOct
26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th
Day
Night
26th Sep 2025286 AMAQI
26th Sep 2025277 AMAQI
26th Sep 2025258 AMAQI
26th Sep 2025219 AMAQI
26th Sep 20252010 AMAQI
26th Sep 20252111 AMAQI
26th Sep 20252312 PMAQI
26th Sep 2025241 PMAQI
26th Sep 2025222 PMAQI
26th Sep 2025313 PMAQI
26th Sep 2025434 PMAQI
26th Sep 2025315 PMAQI
26th Sep 2025286 PMAQI
26th Sep 2025277 PMAQI
26th Sep 2025278 PMAQI
26th Sep 2025269 PMAQI
26th Sep 20252710 PMAQI
26th Sep 20252211 PMAQI
27th Sep 20251112 AMAQI
27th Sep 2025121 AMAQI
27th Sep 2025152 AMAQI
27th Sep 2025183 AMAQI
27th Sep 2025154 AMAQI
27th Sep 2025115 AMAQI
25°C20/32°C
27th Sep 2025146 AMAQI
27th Sep 2025367 AMAQI
27th Sep 2025118 AMAQI
27th Sep 2025119 AMAQI
27th Sep 20251310 AMAQI
27th Sep 20251511 AMAQI
27th Sep 20251112 PMAQI
27th Sep 2025131 PMAQI
27th Sep 2025172 PMAQI
27th Sep 2025113 PMAQI
27th Sep 202594 PMAQI
27th Sep 202585 PMAQI
27th Sep 2025136 PMAQI
27th Sep 2025187 PMAQI
27th Sep 2025208 PMAQI
27th Sep 2025139 PMAQI
27th Sep 20251010 PMAQI
27th Sep 20251211 PMAQI
28th Sep 20251312 AMAQI
28th Sep 2025131 AMAQI
28th Sep 2025142 AMAQI
28th Sep 2025113 AMAQI
28th Sep 2025184 AMAQI
28th Sep 2025205 AMAQI
24°C20/30°C
28th Sep 2025136 AMAQI
28th Sep 2025117 AMAQI
28th Sep 2025188 AMAQI
28th Sep 2025159 AMAQI
28th Sep 20251310 AMAQI
28th Sep 20251511 AMAQI
28th Sep 20251612 PMAQI
28th Sep 2025231 PMAQI
28th Sep 2025272 PMAQI
28th Sep 2025283 PMAQI
28th Sep 2025224 PMAQI
28th Sep 2025235 PMAQI
28th Sep 2025246 PMAQI
28th Sep 2025367 PMAQI
28th Sep 2025288 PMAQI
28th Sep 2025249 PMAQI
28th Sep 20253310 PMAQI
28th Sep 20253011 PMAQI
29th Sep 20252912 AMAQI
29th Sep 2025321 AMAQI
29th Sep 2025342 AMAQI
29th Sep 2025353 AMAQI
29th Sep 2025274 AMAQI
29th Sep 2025305 AMAQI
25°C20/32°C
29th Sep 2025346 AMAQI
29th Sep 2025367 AMAQI
29th Sep 2025168 AMAQI
29th Sep 2025199 AMAQI
29th Sep 20251210 AMAQI
29th Sep 20252711 AMAQI
29th Sep 20251712 PMAQI
29th Sep 2025121 PMAQI
29th Sep 2025202 PMAQI
29th Sep 2025153 PMAQI
29th Sep 202584 PMAQI
29th Sep 202595 PMAQI
29th Sep 202586 PMAQI
29th Sep 202587 PMAQI
29th Sep 202578 PMAQI
29th Sep 2025179 PMAQI
29th Sep 20251710 PMAQI
29th Sep 20251911 PMAQI
30th Sep 20252312 AMAQI
30th Sep 2025201 AMAQI
30th Sep 2025152 AMAQI
30th Sep 2025173 AMAQI
30th Sep 2025214 AMAQI
30th Sep 2025395 AMAQI
27°C21/33°C
30th Sep 2025206 AMAQI
30th Sep 2025327 AMAQI
30th Sep 2025318 AMAQI
30th Sep 2025379 AMAQI
30th Sep 20252610 AMAQI
30th Sep 20252211 AMAQI
30th Sep 20252012 PMAQI
30th Sep 2025151 PMAQI
30th Sep 2025422 PMAQI
30th Sep 2025323 PMAQI
30th Sep 2025124 PMAQI
30th Sep 2025165 PMAQI
30th Sep 2025136 PMAQI
30th Sep 2025117 PMAQI
30th Sep 2025118 PMAQI
30th Sep 2025139 PMAQI
30th Sep 20253110 PMAQI
30th Sep 20253311 PMAQI
1st Oct 20252212 AMAQI
1st Oct 2025251 AMAQI
1st Oct 2025292 AMAQI
1st Oct 2025293 AMAQI
1st Oct 2025274 AMAQI
1st Oct 2025195 AMAQI
29°C23/35°C
1st Oct 2025176 AMAQI
1st Oct 2025177 AMAQI
1st Oct 2025198 AMAQI
1st Oct 2025199 AMAQI
1st Oct 20251710 AMAQI
1st Oct 20251911 AMAQI
1st Oct 20251912 PMAQI
1st Oct 2025181 PMAQI
1st Oct 2025182 PMAQI
1st Oct 2025163 PMAQI
1st Oct 2025144 PMAQI
1st Oct 2025135 PMAQI
1st Oct 2025146 PMAQI
1st Oct 2025177 PMAQI
1st Oct 2025208 PMAQI
1st Oct 2025219 PMAQI
1st Oct 20252410 PMAQI
1st Oct 20252311 PMAQI
2nd Oct 20252412 AMAQI
2nd Oct 2025291 AMAQI
2nd Oct 2025242 AMAQI
2nd Oct 2025223 AMAQI
2nd Oct 2025184 AMAQI
2nd Oct 2025165 AMAQI
28°C22/35°C
2nd Oct 2025166 AMAQI
2nd Oct 2025177 AMAQI
2nd Oct 2025278 AMAQI
2nd Oct 2025309 AMAQI
2nd Oct 20252310 AMAQI
2nd Oct 20252011 AMAQI
2nd Oct 20251912 PMAQI
2nd Oct 2025181 PMAQI
2nd Oct 2025172 PMAQI
2nd Oct 2025143 PMAQI
2nd Oct 2025134 PMAQI
2nd Oct 2025125 PMAQI
2nd Oct 2025116 PMAQI
2nd Oct 2025217 PMAQI
2nd Oct 2025308 PMAQI
2nd Oct 2025309 PMAQI
2nd Oct 20252710 PMAQI
2nd Oct 20252811 PMAQI
3rd Oct 20252812 AMAQI
3rd Oct 2025341 AMAQI
3rd Oct 2025332 AMAQI
3rd Oct 2025273 AMAQI
3rd Oct 2025204 AMAQI
3rd Oct 2025265 AMAQI
30°C23/38°C
3rd Oct 2025306 AMAQI
3rd Oct 2025257 AMAQI
3rd Oct 2025218 AMAQI
3rd Oct 2025329 AMAQI
3rd Oct 20252910 AMAQI
3rd Oct 20252711 AMAQI
3rd Oct 20252612 PMAQI
3rd Oct 2025251 PMAQI
3rd Oct 2025212 PMAQI
3rd Oct 2025193 PMAQI
3rd Oct 2025214 PMAQI
3rd Oct 2025215 PMAQI
3rd Oct 2025226 PMAQI
3rd Oct 2025227 PMAQI
3rd Oct 2025218 PMAQI
3rd Oct 2025229 PMAQI
3rd Oct 20252610 PMAQI
3rd Oct 20252911 PMAQI
4th Oct 20253112 AMAQI
4th Oct 2025261 AMAQI
4th Oct 2025302 AMAQI
4th Oct 2025303 AMAQI
4th Oct 2025284 AMAQI
4th Oct 2025335 AMAQI
30°C23/37°C
4th Oct 2025396 AMAQI
4th Oct 2025497 AMAQI
4th Oct 2025588 AMAQI
4th Oct 2025629 AMAQI
4th Oct 20256610 AMAQI
4th Oct 20257011 AMAQI
4th Oct 20257312 PMAQI
4th Oct 2025711 PMAQI
4th Oct 2025642 PMAQI
4th Oct 2025623 PMAQI
4th Oct 2025554 PMAQI
4th Oct 2025515 PMAQI
4th Oct 2025496 PMAQI
4th Oct 2025517 PMAQI
4th Oct 2025418 PMAQI
4th Oct 2025449 PMAQI
4th Oct 20254710 PMAQI
4th Oct 20254611 PMAQI
5th Oct 20254912 AMAQI
5th Oct 2025481 AMAQI
5th Oct 2025472 AMAQI
5th Oct 2025443 AMAQI
5th Oct 2025424 AMAQI
5th Oct 2025385 AMAQI
26°C22/31°C
5th Oct 2025426 AMAQI
5th Oct 2025427 AMAQI
5th Oct 2025398 AMAQI
5th Oct 2025329 AMAQI
5th Oct 20253110 AMAQI
5th Oct 20252911 AMAQI
5th Oct 20253012 PMAQI
5th Oct 2025281 PMAQI
5th Oct 2025252 PMAQI
5th Oct 2025253 PMAQI
5th Oct 2025244 PMAQI
5th Oct 2025245 PMAQI
5th Oct 2025246 PMAQI
5th Oct 2025277 PMAQI
5th Oct 2025288 PMAQI
5th Oct 2025419 PMAQI
5th Oct 20254410 PMAQI
5th Oct 20254111 PMAQI
6th Oct 20254012 AMAQI
6th Oct 2025401 AMAQI
6th Oct 2025402 AMAQI
6th Oct 2025333 AMAQI
6th Oct 2025334 AMAQI
6th Oct 2025335 AMAQI
24°C17/31°C
6th Oct 2025376 AMAQI
6th Oct 2025407 AMAQI
6th Oct 2025488 AMAQI
6th Oct 2025519 AMAQI
6th Oct 20255110 AMAQI
7th Oct 2025424 AMAQI
7th Oct 2025285 AMAQI
25°C18/34°C
7th Oct 2025256 AMAQI
7th Oct 2025337 AMAQI
7th Oct 2025328 AMAQI
7th Oct 2025339 AMAQI
7th Oct 20252910 AMAQI
7th Oct 20253011 AMAQI
7th Oct 20254012 PMAQI
7th Oct 2025331 PMAQI
7th Oct 2025292 PMAQI
7th Oct 2025223 PMAQI
7th Oct 2025184 PMAQI
7th Oct 2025165 PMAQI
7th Oct 2025176 PMAQI
7th Oct 2025217 PMAQI
7th Oct 2025268 PMAQI
7th Oct 2025339 PMAQI
7th Oct 20254010 PMAQI
7th Oct 20254411 PMAQI
8th Oct 20253812 AMAQI
8th Oct 2025441 AMAQI
8th Oct 2025412 AMAQI
8th Oct 2025363 AMAQI
8th Oct 2025384 AMAQI
8th Oct 2025275 AMAQI
28°C19/36°C
8th Oct 2025266 AMAQI
8th Oct 2025227 AMAQI
8th Oct 2025328 AMAQI
8th Oct 2025459 AMAQI
8th Oct 20254910 AMAQI
8th Oct 20254611 AMAQI
8th Oct 20254412 PMAQI
8th Oct 2025391 PMAQI
8th Oct 2025342 PMAQI
8th Oct 2025313 PMAQI
8th Oct 2025304 PMAQI
8th Oct 2025285 PMAQI
8th Oct 2025286 PMAQI
8th Oct 2025427 PMAQI
8th Oct 2025558 PMAQI
8th Oct 2025559 PMAQI
8th Oct 20255010 PMAQI
8th Oct 20255311 PMAQI
9th Oct 20255412 AMAQI
9th Oct 2025511 AMAQI
9th Oct 2025372 AMAQI
9th Oct 2025343 AMAQI
9th Oct 2025364 AMAQI
9th Oct 2025355 AMAQI
29°C22/37°C
9th Oct 2025396 AMAQI
9th Oct 2025417 AMAQI
9th Oct 2025418 AMAQI
9th Oct 2025529 AMAQI
9th Oct 20255210 AMAQI
9th Oct 20255411 AMAQI
9th Oct 20255412 PMAQI
9th Oct 2025471 PMAQI
9th Oct 2025382 PMAQI
9th Oct 2025363 PMAQI
9th Oct 2025334 PMAQI
9th Oct 2025285 PMAQI
9th Oct 2025196 PMAQI
9th Oct 2025157 PMAQI
9th Oct 2025168 PMAQI
9th Oct 2025139 PMAQI
9th Oct 20251210 PMAQI
9th Oct 20251211 PMAQI
10th Oct 20251312 AMAQI
10th Oct 2025121 AMAQI
10th Oct 2025112 AMAQI
10th Oct 2025103 AMAQI
10th Oct 202594 AMAQI
10th Oct 2025135 AMAQI
29°C22/35°C
10th Oct 202586 AMAQI
10th Oct 202587 AMAQI
10th Oct 202578 AMAQI
10th Oct 202589 AMAQI
10th Oct 2025910 AMAQI
10th Oct 2025911 AMAQI
10th Oct 2025912 PMAQI
10th Oct 2025111 PMAQI
10th Oct 2025112 PMAQI
10th Oct 2025183 PMAQI
10th Oct 2025204 PMAQI
10th Oct 2025195 PMAQI
10th Oct 2025196 PMAQI
10th Oct 2025187 PMAQI
10th Oct 2025188 PMAQI
10th Oct 2025219 PMAQI
10th Oct 20252110 PMAQI
10th Oct 20251511 PMAQI
11th Oct 20251412 AMAQI
11th Oct 2025161 AMAQI
11th Oct 2025112 AMAQI
11th Oct 2025113 AMAQI
11th Oct 2025124 AMAQI
11th Oct 2025165 AMAQI
27°C22/34°C
11th Oct 202596 AMAQI
11th Oct 2025127 AMAQI
11th Oct 202588 AMAQI
11th Oct 2025119 AMAQI
11th Oct 20251110 AMAQI
11th Oct 2025811 AMAQI
11th Oct 2025912 PMAQI
11th Oct 202591 PMAQI
11th Oct 202572 PMAQI
11th Oct 202563 PMAQI
11th Oct 202564 PMAQI
11th Oct 202565 PMAQI
11th Oct 202566 PMAQI
11th Oct 202567 PMAQI
11th Oct 2025118 PMAQI
11th Oct 2025119 PMAQI
11th Oct 20251610 PMAQI
11th Oct 20251511 PMAQI
12th Oct 20251212 AMAQI
12th Oct 2025101 AMAQI
12th Oct 2025112 AMAQI
12th Oct 2025123 AMAQI
12th Oct 2025154 AMAQI
12th Oct 2025155 AMAQI
23°C19/26°C
12th Oct 2025166 AMAQI
12th Oct 2025147 AMAQI
12th Oct 2025138 AMAQI
12th Oct 2025119 AMAQI
12th Oct 20251410 AMAQI
12th Oct 20251211 AMAQI
12th Oct 20251112 PMAQI
12th Oct 2025121 PMAQI
12th Oct 202582 PMAQI
12th Oct 202573 PMAQI
12th Oct 2025104 PMAQI
12th Oct 2025175 PMAQI
12th Oct 2025306 PMAQI
12th Oct 2025147 PMAQI
12th Oct 202588 PMAQI
12th Oct 202589 PMAQI
12th Oct 2025810 PMAQI
12th Oct 20251011 PMAQI
13th Oct 20251212 AMAQI
13th Oct 2025171 AMAQI
13th Oct 2025162 AMAQI
13th Oct 2025123 AMAQI
13th Oct 2025114 AMAQI
13th Oct 2025105 AMAQI
23°C19/26°C
13th Oct 202596 AMAQI
13th Oct 2025127 AMAQI
13th Oct 2025168 AMAQI
13th Oct 2025169 AMAQI
13th Oct 20251710 AMAQI
13th Oct 20251611 AMAQI
13th Oct 20252112 PMAQI
13th Oct 2025141 PMAQI
13th Oct 2025152 PMAQI
13th Oct 2025213 PMAQI
13th Oct 2025244 PMAQI
13th Oct 202595 PMAQI
13th Oct 2025106 PMAQI
13th Oct 2025107 PMAQI
13th Oct 2025108 PMAQI
13th Oct 2025119 PMAQI
13th Oct 20251110 PMAQI
13th Oct 20251211 PMAQI
14th Oct 20251812 AMAQI
14th Oct 2025191 AMAQI
14th Oct 2025202 AMAQI
14th Oct 2025153 AMAQI
14th Oct 2025164 AMAQI
14th Oct 2025215 AMAQI
22°C21/27°C
14th Oct 2025266 AMAQI
14th Oct 2025297 AMAQI
14th Oct 2025308 AMAQI
14th Oct 2025309 AMAQI
14th Oct 20252910 AMAQI
14th Oct 20252411 AMAQI
14th Oct 20252512 PMAQI
14th Oct 2025201 PMAQI
14th Oct 2025142 PMAQI
14th Oct 2025153 PMAQI
14th Oct 2025214 PMAQI
14th Oct 2025265 PMAQI
14th Oct 2025316 PMAQI
14th Oct 2025357 PMAQI
14th Oct 2025348 PMAQI
14th Oct 2025389 PMAQI
14th Oct 20253610 PMAQI
14th Oct 20253711 PMAQI
15th Oct 20253112 AMAQI
15th Oct 2025291 AMAQI
15th Oct 2025282 AMAQI
15th Oct 2025273 AMAQI
15th Oct 2025254 AMAQI
15th Oct 2025245 AMAQI
23°C20/29°C
15th Oct 2025216 AMAQI
15th Oct 2025237 AMAQI
15th Oct 2025238 AMAQI
15th Oct 2025219 AMAQI
15th Oct 20252110 AMAQI
15th Oct 20252411 AMAQI
15th Oct 20252712 PMAQI
15th Oct 2025201 PMAQI
15th Oct 2025222 PMAQI
15th Oct 2025203 PMAQI
15th Oct 2025184 PMAQI
15th Oct 2025205 PMAQI
15th Oct 2025186 PMAQI
15th Oct 2025197 PMAQI
15th Oct 2025218 PMAQI
15th Oct 2025249 PMAQI
15th Oct 20252810 PMAQI
15th Oct 20252611 PMAQI
16th Oct 20252712 AMAQI
16th Oct 2025231 AMAQI
16th Oct 2025232 AMAQI
16th Oct 2025213 AMAQI
16th Oct 2025194 AMAQI
16th Oct 2025175 AMAQI
22°C17/27°C
16th Oct 2025146 AMAQI
16th Oct 2025147 AMAQI
16th Oct 2025168 AMAQI
16th Oct 2025189 AMAQI
16th Oct 20252110 AMAQI
16th Oct 20251911 AMAQI
16th Oct 20251612 PMAQI
16th Oct 2025141 PMAQI
16th Oct 2025112 PMAQI
16th Oct 2025113 PMAQI
16th Oct 2025134 PMAQI
16th Oct 2025155 PMAQI
16th Oct 2025186 PMAQI
16th Oct 2025167 PMAQI
16th Oct 2025188 PMAQI
16th Oct 2025209 PMAQI
16th Oct 20252710 PMAQI
16th Oct 20252411 PMAQI
17th Oct 20252512 AMAQI
17th Oct 2025231 AMAQI
17th Oct 2025202 AMAQI
17th Oct 2025203 AMAQI
17th Oct 2025174 AMAQI
17th Oct 2025155 AMAQI
20°C15/27°C
17th Oct 2025136 AMAQI
17th Oct 2025117 AMAQI
17th Oct 2025158 AMAQI
17th Oct 2025189 AMAQI
17th Oct 20252010 AMAQI
17th Oct 20252011 AMAQI
17th Oct 20251612 PMAQI
17th Oct 2025161 PMAQI
17th Oct 2025112 PMAQI
17th Oct 202593 PMAQI
17th Oct 2025104 PMAQI
17th Oct 2025105 PMAQI
17th Oct 2025126 PMAQI
17th Oct 2025127 PMAQI
17th Oct 2025148 PMAQI
17th Oct 2025259 PMAQI
17th Oct 20253510 PMAQI
17th Oct 20253111 PMAQI
18th Oct 20252912 AMAQI
18th Oct 2025241 AMAQI
18th Oct 2025252 AMAQI
18th Oct 2025213 AMAQI
18th Oct 2025214 AMAQI
18th Oct 2025285 AMAQI
21°C15/27°C
18th Oct 2025336 AMAQI
18th Oct 2025197 AMAQI
18th Oct 2025248 AMAQI
18th Oct 2025399 AMAQI
18th Oct 20252910 AMAQI
18th Oct 20252311 AMAQI
18th Oct 20252412 PMAQI
18th Oct 2025141 PMAQI
18th Oct 2025122 PMAQI
18th Oct 2025123 PMAQI
18th Oct 2025144 PMAQI
18th Oct 2025175 PMAQI
18th Oct 2025186 PMAQI
18th Oct 2025207 PMAQI
18th Oct 2025258 PMAQI
18th Oct 2025339 PMAQI
18th Oct 20253110 PMAQI
18th Oct 20252911 PMAQI
19th Oct 20252712 AMAQI
19th Oct 2025261 AMAQI
19th Oct 2025242 AMAQI
19th Oct 2025243 AMAQI
19th Oct 2025204 AMAQI
19th Oct 2025195 AMAQI
22°C15/30°C
19th Oct 2025166 AMAQI
19th Oct 2025157 AMAQI
19th Oct 2025158 AMAQI
19th Oct 2025229 AMAQI
19th Oct 20252710 AMAQI
19th Oct 20253411 AMAQI
19th Oct 20251812 PMAQI
19th Oct 2025141 PMAQI
19th Oct 202592 PMAQI
19th Oct 2025203 PMAQI
19th Oct 2025244 PMAQI
19th Oct 2025155 PMAQI
19th Oct 2025156 PMAQI
19th Oct 2025177 PMAQI
19th Oct 2025208 PMAQI
19th Oct 2025189 PMAQI
19th Oct 20253210 PMAQI
19th Oct 20254011 PMAQI
20th Oct 20253412 AMAQI
20th Oct 2025581 AMAQI
20th Oct 2025592 AMAQI
20th Oct 2025403 AMAQI
20th Oct 2025184 AMAQI
20th Oct 2025155 AMAQI
24°C16/32°C
20th Oct 2025156 AMAQI
20th Oct 2025137 AMAQI
20th Oct 2025148 AMAQI
20th Oct 2025149 AMAQI
20th Oct 20251410 AMAQI
20th Oct 20251411 AMAQI
20th Oct 20251612 PMAQI
20th Oct 2025131 PMAQI
20th Oct 2025122 PMAQI
20th Oct 2025263 PMAQI
20th Oct 2025134 PMAQI
20th Oct 2025185 PMAQI
20th Oct 2025266 PMAQI
20th Oct 2025307 PMAQI
20th Oct 2025198 PMAQI
20th Oct 2025269 PMAQI
20th Oct 20253810 PMAQI
20th Oct 20256411 PMAQI
21st Oct 20256112 AMAQI
21st Oct 2025591 AMAQI
21st Oct 2025552 AMAQI
21st Oct 2025443 AMAQI
21st Oct 2025204 AMAQI
21st Oct 2025235 AMAQI
24°C17/31°C
21st Oct 2025166 AMAQI
21st Oct 2025357 AMAQI
21st Oct 2025358 AMAQI
21st Oct 2025389 AMAQI
21st Oct 20253910 AMAQI
21st Oct 20254811 AMAQI
21st Oct 20254012 PMAQI
21st Oct 2025271 PMAQI
21st Oct 2025272 PMAQI
21st Oct 2025253 PMAQI
21st Oct 2025294 PMAQI
21st Oct 2025275 PMAQI
21st Oct 2025376 PMAQI
21st Oct 2025287 PMAQI
21st Oct 2025228 PMAQI
21st Oct 2025239 PMAQI
21st Oct 20253410 PMAQI
21st Oct 20254811 PMAQI
22nd Oct 20255612 AMAQI
22nd Oct 2025551 AMAQI
22nd Oct 2025552 AMAQI
22nd Oct 2025553 AMAQI
22nd Oct 2025564 AMAQI
22nd Oct 2025495 AMAQI
25°C17/34°C
22nd Oct 2025456 AMAQI
22nd Oct 2025477 AMAQI
22nd Oct 2025388 AMAQI
22nd Oct 2025439 AMAQI
22nd Oct 20255010 AMAQI
22nd Oct 20254611 AMAQI
22nd Oct 20255212 PMAQI
22nd Oct 2025571 PMAQI
22nd Oct 2025502 PMAQI
22nd Oct 2025403 PMAQI
22nd Oct 2025274 PMAQI
22nd Oct 2025345 PMAQI
22nd Oct 2025406 PMAQI
22nd Oct 2025327 PMAQI
22nd Oct 2025298 PMAQI
22nd Oct 2025309 PMAQI
22nd Oct 20254310 PMAQI
22nd Oct 20253811 PMAQI
23rd Oct 20254312 AMAQI
23rd Oct 2025401 AMAQI
23rd Oct 2025552 AMAQI
23rd Oct 2025393 AMAQI
23rd Oct 2025324 AMAQI
23rd Oct 2025385 AMAQI
26°C21/33°C
23rd Oct 2025306 AMAQI
23rd Oct 2025237 AMAQI
23rd Oct 2025338 AMAQI
23rd Oct 2025309 AMAQI
23rd Oct 20252710 AMAQI
23rd Oct 20252611 AMAQI
23rd Oct 20253212 PMAQI
23rd Oct 2025371 PMAQI
23rd Oct 2025382 PMAQI
23rd Oct 2025333 PMAQI
23rd Oct 2025394 PMAQI
23rd Oct 2025355 PMAQI
23rd Oct 2025356 PMAQI
23rd Oct 2025387 PMAQI
23rd Oct 2025388 PMAQI
23rd Oct 2025369 PMAQI
23rd Oct 20254210 PMAQI
23rd Oct 20254811 PMAQI
24th Oct 20255012 AMAQI
24th Oct 2025431 AMAQI
24th Oct 2025362 AMAQI
24th Oct 2025343 AMAQI
24th Oct 2025294 AMAQI
24th Oct 2025285 AMAQI
23°C17/28°C
24th Oct 2025306 AMAQI
24th Oct 2025347 AMAQI
24th Oct 2025258 AMAQI
24th Oct 2025359 AMAQI
24th Oct 20252710 AMAQI
24th Oct 20253111 AMAQI
24th Oct 20254612 PMAQI
24th Oct 2025501 PMAQI
24th Oct 2025522 PMAQI
24th Oct 2025373 PMAQI
24th Oct 2025264 PMAQI
24th Oct 2025275 PMAQI
24th Oct 2025256 PMAQI
24th Oct 2025317 PMAQI
24th Oct 2025268 PMAQI
24th Oct 2025289 PMAQI
24th Oct 20253410 PMAQI
24th Oct 20254711 PMAQI
25th Oct 20255612 AMAQI
25th Oct 2025371 AMAQI
25th Oct 2025282 AMAQI
25th Oct 2025263 AMAQI
25th Oct 2025344 AMAQI
25th Oct 2025335 AMAQI
22°C16/29°C
25th Oct 2025236 AMAQI
25th Oct 2025267 AMAQI
25th Oct 2025248 AMAQI
25th Oct 2025339 AMAQI
25th Oct 20252210 AMAQI
25th Oct 20252411 AMAQI
25th Oct 20252512 PMAQI
25th Oct 2025271 PMAQI
25th Oct 2025212 PMAQI
25th Oct 2025223 PMAQI
25th Oct 2025204 PMAQI
25th Oct 2025185 PMAQI
25th Oct 2025186 PMAQI
25th Oct 2025247 PMAQI
25th Oct 2025258 PMAQI
25th Oct 2025269 PMAQI
25th Oct 20253210 PMAQI
25th Oct 20253011 PMAQI
26th Oct 20253912 AMAQI
26th Oct 2025351 AMAQI
26th Oct 2025332 AMAQI
26th Oct 2025303 AMAQI
26th Oct 2025294 AMAQI
26th Oct 2025385 AMAQI
23°C16/30°C
26th Oct 2025266 AMAQI
6 AM26th Oct 2025407 AMAQI
26th Oct 2025388 AMAQI
26th Oct 2025389 AMAQI
26th Oct 20255010 AMAQI
26th Oct 20253611 AMAQI
11 AM26th Oct 20252812 PMAQI
26th Oct 2025191 PMAQI
5 PM
11 PM
5 AM
--°C/°C
Day time
Avg. Highest Time
9 AM
29AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
5 PM
20AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 AM to 9 AM (Avg. 29), while the lowest AQI was between 5 PM to 5 PM (Avg. 20).
Night time
Avg. Highest Time
12 AM - 1 AM
31AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
6 PM
22AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 1 AM (Avg. 31), while the lowest AQI was between 6 PM to 6 PM (Avg. 22).
2025 Days Vs Air Quality
Fountain Hills, Arizona, United States
2025
89%
191
10%
21
0.9%
2
Total number of days with different AQI categories in last 299 days in 2025 (66 days remaining)
Good
191 DaysModerate
21 DaysPoor
2 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 89%
Health Risk Level:
Low
In 2025, 89% of 299 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
Fountain Hills, Arizona, 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.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
2nd January 2025
3rd January 2025
4th January 2025
5th January 2025
6th January 2025
7th January 2025
8th January 2025
9th January 2025
10th January 2025
11th January 2025
12th January 2025
13th January 2025
14th January 2025
15th January 2025
16th January 2025
17th January 2025
18th January 2025
19th January 2025
20th January 2025
21st January 2025
22nd January 2025
23rd January 2025
24th January 2025
25th January 2025
26th January 2025
27th January 2025
28th January 2025
29th January 2025
30th January 2025
31st January 2025
1st February 2025
2nd February 2025
3rd February 2025
4th February 2025
5th February 2025
6th February 2025
7th February 2025
8th February 2025
9th February 2025
10th February 2025
11th February 2025
12th February 2025
13th February 2025
14th February 2025
15th February 2025
16th February 2025
17th February 2025
18th February 2025
19th February 2025
20th February 2025
21st February 2025
22nd February 2025
23rd February 2025
24th February 2025
25th February 2025
26th February 2025
27th February 2025
28th February 2025
1st March 2025
2nd March 2025
3rd March 2025
4th March 2025
5th March 2025
6th March 2025
7th March 2025
8th March 2025
9th March 2025
10th March 2025
11th March 2025
12th March 2025
13th March 2025
14th March 2025
15th March 2025
16th March 2025
17th March 2025
18th March 2025
19th March 2025
20th March 2025
21st March 2025
22nd March 2025
23rd March 2025
24th March 2025
25th March 2025
26th March 2025
30AQI
30AQI
27th March 2025
29AQI
29AQI
28th March 2025
31AQI
31AQI
29th March 2025
40AQI
40AQI
30th March 2025
43AQI
43AQI
31st March 2025
32AQI
32AQI
1st April 2025
37AQI
37AQI
2nd April 2025
49AQI
49AQI
3rd April 2025
24AQI
24AQI
4th April 2025
24AQI
24AQI
5th April 2025
23AQI
23AQI
6th April 2025
25AQI
25AQI
7th April 2025
29AQI
29AQI
8th April 2025
42AQI
42AQI
9th April 2025
41AQI
41AQI
10th April 2025
41AQI
41AQI
11th April 2025
43AQI
43AQI
12th April 2025
41AQI
41AQI
13th April 2025
38AQI
38AQI
14th April 2025
43AQI
43AQI
15th April 2025
35AQI
35AQI
16th April 2025
33AQI
33AQI
17th April 2025
36AQI
36AQI
18th April 2025
34AQI
34AQI
19th April 2025
36AQI
36AQI
20th April 2025
27AQI
27AQI
21st April 2025
29AQI
29AQI
22nd April 2025
31AQI
31AQI
23rd April 2025
32AQI
32AQI
24th April 2025
29AQI
29AQI
25th April 2025
32AQI
32AQI
26th April 2025
33AQI
33AQI
27th April 2025
27AQI
27AQI
28th April 2025
25AQI
25AQI
29th April 2025
30AQI
30AQI
30th April 2025
28AQI
28AQI
1st May 2025
31AQI
31AQI
2nd May 2025
35AQI
35AQI
3rd May 2025
34AQI
34AQI
4th May 2025
34AQI
34AQI
5th May 2025
33AQI
33AQI
6th May 2025
31AQI
31AQI
7th May 2025
29AQI
29AQI
8th May 2025
32AQI
32AQI
9th May 2025
32AQI
32AQI
10th May 2025
41AQI
41AQI
11th May 2025
43AQI
43AQI
12th May 2025
44AQI
44AQI
13th May 2025
36AQI
36AQI
14th May 2025
39AQI
39AQI
15th May 2025
35AQI
35AQI
16th May 2025
34AQI
34AQI
17th May 2025
44AQI
44AQI
18th May 2025
44AQI
44AQI
19th May 2025
41AQI
41AQI
20th May 2025
40AQI
40AQI
21st May 2025
39AQI
39AQI
22nd May 2025
46AQI
46AQI
23rd May 2025
41AQI
41AQI
24th May 2025
42AQI
42AQI
25th May 2025
39AQI
39AQI
26th May 2025
40AQI
40AQI
27th May 2025
40AQI
40AQI
28th May 2025
42AQI
42AQI
29th May 2025
41AQI
41AQI
30th May 2025
41AQI
41AQI
31st May 2025
49AQI
49AQI
1st June 2025
46AQI
46AQI
2nd June 2025
31AQI
31AQI
3rd June 2025
31AQI
31AQI
4th June 2025
30AQI
30AQI
5th June 2025
27AQI
27AQI
6th June 2025
30AQI
30AQI
7th June 2025
35AQI
35AQI
8th June 2025
33AQI
33AQI
9th June 2025
32AQI
32AQI
10th June 2025
35AQI
35AQI
11th June 2025
38AQI
38AQI
12th June 2025
40AQI
40AQI
13th June 2025
44AQI
44AQI
14th June 2025
41AQI
41AQI
15th June 2025
38AQI
38AQI
16th June 2025
40AQI
40AQI
17th June 2025
52AQI
52AQI
18th June 2025
48AQI
48AQI
19th June 2025
46AQI
46AQI
20th June 2025
42AQI
42AQI
21st June 2025
44AQI
44AQI
22nd June 2025
43AQI
43AQI
23rd June 2025
42AQI
42AQI
24th June 2025
46AQI
46AQI
25th June 2025
45AQI
45AQI
26th June 2025
44AQI
44AQI
27th June 2025
43AQI
43AQI
28th June 2025
40AQI
40AQI
29th June 2025
40AQI
40AQI
30th June 2025
39AQI
39AQI
1st July 2025
113AQI
113AQI
2nd July 2025
48AQI
48AQI
3rd July 2025
42AQI
42AQI
4th July 2025
45AQI
45AQI
5th July 2025
50AQI
50AQI
6th July 2025
39AQI
39AQI
7th July 2025
37AQI
37AQI
8th July 2025
50AQI
50AQI
9th July 2025
37AQI
37AQI
10th July 2025
40AQI
40AQI
11th July 2025
52AQI
52AQI
12th July 2025
49AQI
49AQI
13th July 2025
47AQI
47AQI
14th July 2025
49AQI
49AQI
15th July 2025
45AQI
45AQI
16th July 2025
50AQI
50AQI
17th July 2025
35AQI
35AQI
18th July 2025
36AQI
36AQI
19th July 2025
35AQI
35AQI
20th July 2025
33AQI
33AQI
21st July 2025
41AQI
41AQI
22nd July 2025
36AQI
36AQI
23rd July 2025
30AQI
30AQI
24th July 2025
31AQI
31AQI
25th July 2025
27AQI
27AQI
26th July 2025
24AQI
24AQI
27th July 2025
27AQI
27AQI
28th July 2025
29AQI
29AQI
29th July 2025
33AQI
33AQI
30th July 2025
38AQI
38AQI
31st July 2025
66AQI
66AQI
1st August 2025
70AQI
70AQI
2nd August 2025
41AQI
41AQI
3rd August 2025
44AQI
44AQI
4th August 2025
53AQI
53AQI
5th August 2025
54AQI
54AQI
6th August 2025
53AQI
53AQI
7th August 2025
53AQI
53AQI
8th August 2025
51AQI
51AQI
9th August 2025
58AQI
58AQI
10th August 2025
64AQI
64AQI
11th August 2025
56AQI
56AQI
12th August 2025
59AQI
59AQI
13th August 2025
57AQI
57AQI
14th August 2025
115AQI
115AQI
15th August 2025
46AQI
46AQI
16th August 2025
36AQI
36AQI
17th August 2025
32AQI
32AQI
18th August 2025
29AQI
29AQI
19th August 2025
30AQI
30AQI
20th August 2025
37AQI
37AQI
21st August 2025
61AQI
61AQI
22nd August 2025
57AQI
57AQI
23rd August 2025
51AQI
51AQI
24th August 2025
51AQI
51AQI
25th August 2025
91AQI
91AQI
26th August 2025
35AQI
35AQI
27th August 2025
30AQI
30AQI
28th August 2025
34AQI
34AQI
29th August 2025
28AQI
28AQI
30th August 2025
31AQI
31AQI
31st August 2025
35AQI
35AQI
1st September 2025
43AQI
43AQI
2nd September 2025
37AQI
37AQI
3rd September 2025
55AQI
55AQI
4th September 2025
34AQI
34AQI
5th September 2025
32AQI
32AQI
6th September 2025
27AQI
27AQI
7th September 2025
24AQI
24AQI
8th September 2025
21AQI
21AQI
9th September 2025
25AQI
25AQI
10th September 2025
51AQI
51AQI
11th September 2025
28AQI
28AQI
12th September 2025
27AQI
27AQI
13th September 2025
25AQI
25AQI
14th September 2025
31AQI
31AQI
15th September 2025
31AQI
31AQI
16th September 2025
33AQI
33AQI
17th September 2025
40AQI
40AQI
18th September 2025
34AQI
34AQI
19th September 2025
31AQI
31AQI
20th September 2025
24AQI
24AQI
21st September 2025
27AQI
27AQI
22nd September 2025
26AQI
26AQI
23rd September 2025
30AQI
30AQI
24th September 2025
29AQI
29AQI
25th September 2025
31AQI
31AQI
26th September 2025
27AQI
27AQI
27th September 2025
14AQI
14AQI
28th September 2025
21AQI
21AQI
29th September 2025
21AQI
21AQI
30th September 2025
22AQI
22AQI
1st October 2025
20AQI
20AQI
2nd October 2025
22AQI
22AQI
3rd October 2025
26AQI
26AQI
4th October 2025
46AQI
46AQI
5th October 2025
37AQI
37AQI
6th October 2025
38AQI
38AQI
7th October 2025
29AQI
29AQI
8th October 2025
40AQI
40AQI
9th October 2025
34AQI
34AQI
10th October 2025
13AQI
13AQI
11th October 2025
11AQI
11AQI
12th October 2025
13AQI
13AQI
13th October 2025
13AQI
13AQI
14th October 2025
25AQI
25AQI
15th October 2025
24AQI
24AQI
16th October 2025
19AQI
19AQI
17th October 2025
18AQI
18AQI
18th October 2025
24AQI
24AQI
19th October 2025
22AQI
22AQI
20th October 2025
29AQI
29AQI
21st October 2025
37AQI
37AQI
22nd October 2025
45AQI
45AQI
23rd October 2025
38AQI
38AQI
24th October 2025
35AQI
35AQI
25th October 2025
28AQI
28AQI
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025
34AQI
33AQI
38AQI
40AQI
42AQI
50AQI
30AQI
27AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202537AQI
6
30
31
29
1
28
2
1
14
16
1
28
2
25
191
21
2
Highest AQI recorded in
August50AQI
Lowest AQI recorded in
October27AQI
Most & Least Polluted Years Over the Last 1 Years
Most Polluted Year Recorded
2025(Avg.)
37AQILeast Polluted Year Recorded
2025(Avg.)
37AQIFountain Hills's annual 2025 AQI (37) shows an average percentage change of NaN% (improved AQI) compared to previous years: .
