Danbury, Connecticut, 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
Danbury, Connecticut, United States
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
5th Aug 2025
104AQILowest AQI recorded on
20th Aug 2024
13AQISame Day Analysis (8th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 29 of Good air quality, showing improvement over 2025 on the same day.
Day & Night AQI Trend: 8th Aug - 9th Aug 2026
Danbury, Connecticut, United States
AQI
Day
Night
.
5 AM8th Aug 2026
8 PM
4 AM9th Aug 2026
Day time
Avg. Highest Time
7PM8th Aug
36AQI
Avg. Lowest Time
2PM8th Aug
22AQI
Night time
Avg. Highest Time
12AM9th Aug
43AQI
Avg. Lowest Time
3AM9th Aug
32AQI
In the last 24 hours,
Danbury's AQI reached its highest point of 43 at 12 AM during the Night, while the lowest point, 22, was recorded at 2 PM during the Day between 8th Aug and 9th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Danbury, Connecticut, United States
JulAug
11th - 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 - 08th08th - 09th09th
Day
Night
11th Jul 2026125 AMAQI
11th Jul 2026186 AMAQI
11th Jul 2026177 AMAQI
11th Jul 2026238 AMAQI
11th Jul 2026209 AMAQI
11th Jul 20261610 AMAQI
11th Jul 20261911 AMAQI
11th Jul 20261612 PMAQI
11th Jul 2026171 PMAQI
11th Jul 2026182 PMAQI
11th Jul 2026183 PMAQI
11th Jul 2026164 PMAQI
11th Jul 2026285 PMAQI
11th Jul 2026226 PMAQI
11th Jul 2026187 PMAQI
11th Jul 2026188 PMAQI
11th Jul 2026189 PMAQI
11th Jul 20261610 PMAQI
11th Jul 20261911 PMAQI
12th Jul 20262012 AMAQI
12th Jul 2026191 AMAQI
12th Jul 2026182 AMAQI
12th Jul 2026183 AMAQI
12th Jul 2026184 AMAQI
24°C19/30°C
12th Jul 2026305 AMAQI
12th Jul 2026206 AMAQI
12th Jul 2026217 AMAQI
12th Jul 2026308 AMAQI
12th Jul 2026189 AMAQI
12th Jul 20261610 AMAQI
12th Jul 20262411 AMAQI
12th Jul 20261312 PMAQI
12th Jul 2026131 PMAQI
12th Jul 2026122 PMAQI
12th Jul 2026123 PMAQI
12th Jul 2026124 PMAQI
12th Jul 2026125 PMAQI
12th Jul 2026186 PMAQI
12th Jul 2026147 PMAQI
12th Jul 2026148 PMAQI
12th Jul 2026139 PMAQI
12th Jul 20261310 PMAQI
12th Jul 20261411 PMAQI
13th Jul 20261212 AMAQI
13th Jul 2026121 AMAQI
13th Jul 2026122 AMAQI
13th Jul 2026233 AMAQI
13th Jul 2026204 AMAQI
23°C17/30°C
13th Jul 2026185 AMAQI
13th Jul 2026216 AMAQI
13th Jul 2026147 AMAQI
13th Jul 2026168 AMAQI
13th Jul 2026209 AMAQI
13th Jul 20261610 AMAQI
13th Jul 20261811 AMAQI
13th Jul 20262012 PMAQI
13th Jul 2026181 PMAQI
13th Jul 2026182 PMAQI
13th Jul 2026293 PMAQI
13th Jul 2026204 PMAQI
13th Jul 2026245 PMAQI
13th Jul 2026186 PMAQI
13th Jul 2026187 PMAQI
13th Jul 2026198 PMAQI
13th Jul 2026219 PMAQI
13th Jul 20261810 PMAQI
13th Jul 20261611 PMAQI
14th Jul 20261612 AMAQI
14th Jul 2026161 AMAQI
14th Jul 2026162 AMAQI
14th Jul 2026233 AMAQI
14th Jul 2026164 AMAQI
24°C17/31°C
14th Jul 2026225 AMAQI
14th Jul 2026146 AMAQI
14th Jul 2026167 AMAQI
14th Jul 2026248 AMAQI
14th Jul 2026169 AMAQI
14th Jul 20261710 AMAQI
14th Jul 20261611 AMAQI
14th Jul 20261612 PMAQI
14th Jul 2026181 PMAQI
14th Jul 2026322 PMAQI
14th Jul 2026183 PMAQI
14th Jul 2026204 PMAQI
14th Jul 2026205 PMAQI
14th Jul 2026206 PMAQI
14th Jul 2026187 PMAQI
14th Jul 2026288 PMAQI
14th Jul 2026209 PMAQI
14th Jul 20262010 PMAQI
14th Jul 20262011 PMAQI
15th Jul 20261812 AMAQI
15th Jul 2026201 AMAQI
15th Jul 2026182 AMAQI
15th Jul 2026283 AMAQI
15th Jul 2026304 AMAQI
26°C20/33°C
15th Jul 2026205 AMAQI
15th Jul 2026326 AMAQI
15th Jul 2026327 AMAQI
15th Jul 2026208 AMAQI
15th Jul 2026609 AMAQI
15th Jul 20263010 AMAQI
15th Jul 20262211 AMAQI
15th Jul 20265112 PMAQI
15th Jul 20261031 PMAQI
15th Jul 2026522 PMAQI
15th Jul 20261343 PMAQI
15th Jul 2026744 PMAQI
15th Jul 2026785 PMAQI
15th Jul 2026876 PMAQI
15th Jul 2026687 PMAQI
15th Jul 2026628 PMAQI
15th Jul 2026869 PMAQI
15th Jul 20265810 PMAQI
15th Jul 20265511 PMAQI
16th Jul 20265812 AMAQI
16th Jul 2026601 AMAQI
16th Jul 2026862 AMAQI
16th Jul 2026553 AMAQI
16th Jul 2026584 AMAQI
27°C22/33°C
16th Jul 2026565 AMAQI
16th Jul 2026626 AMAQI
16th Jul 2026577 AMAQI
16th Jul 2026568 AMAQI
16th Jul 2026609 AMAQI
16th Jul 20263210 AMAQI
16th Jul 20265811 AMAQI
16th Jul 20267212 PMAQI
16th Jul 2026831 PMAQI
16th Jul 2026912 PMAQI
16th Jul 2026743 PMAQI
16th Jul 2026874 PMAQI
16th Jul 2026965 PMAQI
16th Jul 2026946 PMAQI
16th Jul 20261007 PMAQI
16th Jul 2026988 PMAQI
16th Jul 2026929 PMAQI
16th Jul 20269010 PMAQI
16th Jul 20268911 PMAQI
17th Jul 20268812 AMAQI
17th Jul 2026781 AMAQI
17th Jul 2026782 AMAQI
17th Jul 20261143 AMAQI
17th Jul 20261074 AMAQI
24°C20/31°C
17th Jul 20261605 AMAQI
17th Jul 20261616 AMAQI
17th Jul 20261607 AMAQI
17th Jul 20261608 AMAQI
17th Jul 20261549 AMAQI
17th Jul 202610810 AMAQI
17th Jul 20267711 AMAQI
17th Jul 20266112 PMAQI
17th Jul 2026491 PMAQI
17th Jul 2026482 PMAQI
17th Jul 2026543 PMAQI
17th Jul 2026564 PMAQI
17th Jul 2026555 PMAQI
17th Jul 2026546 PMAQI
17th Jul 2026497 PMAQI
17th Jul 2026568 PMAQI
17th Jul 2026529 PMAQI
17th Jul 20265210 PMAQI
17th Jul 20265811 PMAQI
18th Jul 20265612 AMAQI
18th Jul 2026571 AMAQI
18th Jul 2026622 AMAQI
18th Jul 2026663 AMAQI
18th Jul 2026654 AMAQI
23°C17/29°C
18th Jul 2026595 AMAQI
18th Jul 2026606 AMAQI
18th Jul 2026687 AMAQI
18th Jul 2026848 AMAQI
18th Jul 20261029 AMAQI
18th Jul 202613410 AMAQI
18th Jul 202615611 AMAQI
18th Jul 202616412 PMAQI
18th Jul 20261631 PMAQI
18th Jul 20261662 PMAQI
18th Jul 20261603 PMAQI
18th Jul 20261564 PMAQI
18th Jul 20261545 PMAQI
18th Jul 20261566 PMAQI
18th Jul 20261577 PMAQI
18th Jul 20261508 PMAQI
18th Jul 20261329 PMAQI
18th Jul 202611410 PMAQI
18th Jul 20266811 PMAQI
19th Jul 20267212 AMAQI
19th Jul 2026541 AMAQI
19th Jul 2026492 AMAQI
19th Jul 2026543 AMAQI
19th Jul 2026574 AMAQI
22°C17/31°C
19th Jul 2026625 AMAQI
19th Jul 2026606 AMAQI
19th Jul 2026637 AMAQI
19th Jul 2026588 AMAQI
19th Jul 2026549 AMAQI
19th Jul 20265210 AMAQI
19th Jul 20264011 AMAQI
19th Jul 20264912 PMAQI
19th Jul 2026501 PMAQI
19th Jul 2026532 PMAQI
19th Jul 2026533 PMAQI
19th Jul 2026484 PMAQI
19th Jul 2026465 PMAQI
19th Jul 2026366 PMAQI
19th Jul 2026427 PMAQI
19th Jul 2026278 PMAQI
19th Jul 2026469 PMAQI
19th Jul 20263810 PMAQI
19th Jul 20262911 PMAQI
20th Jul 20264212 AMAQI
20th Jul 2026501 AMAQI
20th Jul 2026412 AMAQI
20th Jul 2026273 AMAQI
20th Jul 2026274 AMAQI
22°C18/27°C
20th Jul 2026235 AMAQI
20th Jul 2026276 AMAQI
20th Jul 2026217 AMAQI
20th Jul 2026428 AMAQI
20th Jul 2026279 AMAQI
20th Jul 20261610 AMAQI
20th Jul 20263811 AMAQI
20th Jul 20261812 PMAQI
20th Jul 2026181 PMAQI
20th Jul 2026212 PMAQI
20th Jul 2026233 PMAQI
20th Jul 2026384 PMAQI
20th Jul 2026225 PMAQI
20th Jul 2026306 PMAQI
20th Jul 2026287 PMAQI
20th Jul 2026238 PMAQI
20th Jul 2026309 PMAQI
20th Jul 20263210 PMAQI
21st Jul 20263212 AMAQI
21st Jul 2026291 AMAQI
21st Jul 2026382 AMAQI
21st Jul 2026263 AMAQI
21st Jul 2026384 AMAQI
20°C14/28°C
21st Jul 2026405 AMAQI
21st Jul 2026406 AMAQI
21st Jul 2026507 AMAQI
21st Jul 2026368 AMAQI
21st Jul 2026469 AMAQI
21st Jul 20264410 AMAQI
21st Jul 20264811 AMAQI
21st Jul 20265012 PMAQI
21st Jul 2026441 PMAQI
21st Jul 2026512 PMAQI
21st Jul 2026423 PMAQI
21st Jul 2026344 PMAQI
21st Jul 2026305 PMAQI
21st Jul 2026336 PMAQI
21st Jul 2026327 PMAQI
21st Jul 2026288 PMAQI
21st Jul 2026269 PMAQI
21st Jul 20262910 PMAQI
21st Jul 20262811 PMAQI
22nd Jul 20263412 AMAQI
22nd Jul 2026241 AMAQI
22nd Jul 2026382 AMAQI
22nd Jul 2026423 AMAQI
22nd Jul 2026314 AMAQI
22°C17/27°C
22nd Jul 2026405 AMAQI
22nd Jul 2026416 AMAQI
22nd Jul 2026257 AMAQI
22nd Jul 2026468 AMAQI
22nd Jul 2026219 AMAQI
22nd Jul 20262510 AMAQI
22nd Jul 20262511 AMAQI
22nd Jul 20262512 PMAQI
22nd Jul 2026251 PMAQI
22nd Jul 2026252 PMAQI
22nd Jul 2026223 PMAQI
22nd Jul 2026234 PMAQI
22nd Jul 2026235 PMAQI
22nd Jul 2026306 PMAQI
22nd Jul 2026327 PMAQI
22nd Jul 2026268 PMAQI
22nd Jul 2026229 PMAQI
22nd Jul 20264010 PMAQI
22nd Jul 20264111 PMAQI
23rd Jul 20263912 AMAQI
23rd Jul 2026381 AMAQI
23rd Jul 2026342 AMAQI
23rd Jul 2026383 AMAQI
23rd Jul 2026354 AMAQI
24°C19/29°C
23rd Jul 2026255 AMAQI
23rd Jul 2026396 AMAQI
23rd Jul 2026257 AMAQI
23rd Jul 2026308 AMAQI
23rd Jul 2026339 AMAQI
23rd Jul 20264110 AMAQI
23rd Jul 20263611 AMAQI
23rd Jul 20264112 PMAQI
23rd Jul 2026301 PMAQI
23rd Jul 2026392 PMAQI
23rd Jul 2026443 PMAQI
23rd Jul 2026484 PMAQI
23rd Jul 2026405 PMAQI
23rd Jul 2026386 PMAQI
23rd Jul 2026347 PMAQI
23rd Jul 2026328 PMAQI
23rd Jul 2026309 PMAQI
23rd Jul 20263710 PMAQI
23rd Jul 20264011 PMAQI
24th Jul 20264212 AMAQI
24th Jul 2026381 AMAQI
24th Jul 2026422 AMAQI
24th Jul 2026453 AMAQI
24th Jul 2026344 AMAQI
20°C15/25°C
24th Jul 2026295 AMAQI
24th Jul 2026336 AMAQI
24th Jul 2026357 AMAQI
24th Jul 2026258 AMAQI
24th Jul 2026249 AMAQI
24th Jul 20262510 AMAQI
24th Jul 20262511 AMAQI
24th Jul 20262512 PMAQI
24th Jul 2026251 PMAQI
24th Jul 2026292 PMAQI
24th Jul 2026293 PMAQI
24th Jul 2026324 PMAQI
24th Jul 2026385 PMAQI
24th Jul 2026336 PMAQI
24th Jul 2026337 PMAQI
24th Jul 2026388 PMAQI
24th Jul 2026279 PMAQI
24th Jul 20262510 PMAQI
24th Jul 20262511 PMAQI
25th Jul 20263212 AMAQI
25th Jul 2026291 AMAQI
25th Jul 2026232 AMAQI
25th Jul 2026293 AMAQI
25th Jul 2026264 AMAQI
20°C14/27°C
25th Jul 2026345 AMAQI
25th Jul 2026336 AMAQI
25th Jul 2026347 AMAQI
25th Jul 2026408 AMAQI
25th Jul 2026309 AMAQI
25th Jul 20263410 AMAQI
25th Jul 20262811 AMAQI
25th Jul 20263812 PMAQI
25th Jul 2026321 PMAQI
25th Jul 2026322 PMAQI
25th Jul 2026223 PMAQI
25th Jul 2026164 PMAQI
25th Jul 2026235 PMAQI
25th Jul 2026346 PMAQI
25th Jul 2026367 PMAQI
25th Jul 2026278 PMAQI
25th Jul 2026269 PMAQI
25th Jul 20262310 PMAQI
25th Jul 20262411 PMAQI
26th Jul 20262812 AMAQI
26th Jul 2026431 AMAQI
26th Jul 2026402 AMAQI
26th Jul 2026323 AMAQI
26th Jul 2026384 AMAQI
20°C15/26°C
26th Jul 2026255 AMAQI
26th Jul 2026396 AMAQI
26th Jul 2026327 AMAQI
26th Jul 2026348 AMAQI
26th Jul 2026329 AMAQI
26th Jul 20263210 AMAQI
26th Jul 20261711 AMAQI
26th Jul 20263412 PMAQI
26th Jul 2026321 PMAQI
26th Jul 2026212 PMAQI
26th Jul 2026233 PMAQI
26th Jul 2026224 PMAQI
26th Jul 2026355 PMAQI
26th Jul 2026236 PMAQI
26th Jul 2026217 PMAQI
26th Jul 2026258 PMAQI
26th Jul 2026389 PMAQI
26th Jul 20262110 PMAQI
26th Jul 20262111 PMAQI
27th Jul 20262412 AMAQI
27th Jul 2026251 AMAQI
27th Jul 2026222 AMAQI
27th Jul 2026243 AMAQI
27th Jul 2026374 AMAQI
21°C14/28°C
27th Jul 2026235 AMAQI
27th Jul 2026336 AMAQI
27th Jul 2026297 AMAQI
27th Jul 2026268 AMAQI
27th Jul 2026389 AMAQI
27th Jul 20264110 AMAQI
27th Jul 20264011 AMAQI
27th Jul 20263912 PMAQI
27th Jul 2026461 PMAQI
27th Jul 2026412 PMAQI
27th Jul 2026383 PMAQI
27th Jul 2026344 PMAQI
27th Jul 2026375 PMAQI
27th Jul 2026306 PMAQI
27th Jul 2026407 PMAQI
27th Jul 2026418 PMAQI
27th Jul 2026389 PMAQI
27th Jul 20263810 PMAQI
27th Jul 20263811 PMAQI
28th Jul 20263812 AMAQI
28th Jul 2026411 AMAQI
28th Jul 2026382 AMAQI
28th Jul 2026363 AMAQI
28th Jul 2026404 AMAQI
23°C17/30°C
28th Jul 2026385 AMAQI
28th Jul 2026446 AMAQI
28th Jul 2026437 AMAQI
28th Jul 2026438 AMAQI
28th Jul 2026449 AMAQI
28th Jul 20264810 AMAQI
28th Jul 20264711 AMAQI
28th Jul 20265312 PMAQI
28th Jul 2026541 PMAQI
28th Jul 2026522 PMAQI
28th Jul 2026483 PMAQI
28th Jul 2026454 PMAQI
28th Jul 2026425 PMAQI
28th Jul 2026426 PMAQI
28th Jul 2026367 PMAQI
28th Jul 2026438 PMAQI
28th Jul 2026399 PMAQI
28th Jul 20262810 PMAQI
28th Jul 20262611 PMAQI
29th Jul 20263312 AMAQI
29th Jul 2026371 AMAQI
29th Jul 2026332 AMAQI
29th Jul 2026253 AMAQI
29th Jul 2026224 AMAQI
22°C18/26°C
29th Jul 2026245 AMAQI
29th Jul 2026406 AMAQI
29th Jul 2026347 AMAQI
29th Jul 2026388 AMAQI
29th Jul 2026389 AMAQI
29th Jul 20262310 AMAQI
29th Jul 20262311 AMAQI
29th Jul 20263612 PMAQI
29th Jul 2026381 PMAQI
29th Jul 2026202 PMAQI
29th Jul 2026383 PMAQI
29th Jul 2026424 PMAQI
29th Jul 2026325 PMAQI
29th Jul 2026346 PMAQI
29th Jul 2026297 PMAQI
29th Jul 2026238 PMAQI
29th Jul 2026309 PMAQI
29th Jul 20264610 PMAQI
29th Jul 20263211 PMAQI
30th Jul 20264412 AMAQI
30th Jul 2026341 AMAQI
30th Jul 2026402 AMAQI
30th Jul 2026423 AMAQI
30th Jul 2026374 AMAQI
21°C19/24°C
30th Jul 2026345 AMAQI
30th Jul 2026216 AMAQI
30th Jul 2026287 AMAQI
30th Jul 2026188 AMAQI
30th Jul 2026129 AMAQI
30th Jul 20262810 AMAQI
30th Jul 20261611 AMAQI
30th Jul 20262012 PMAQI
30th Jul 2026181 PMAQI
30th Jul 2026122 PMAQI
30th Jul 2026343 PMAQI
30th Jul 2026254 PMAQI
30th Jul 2026195 PMAQI
30th Jul 2026166 PMAQI
30th Jul 2026207 PMAQI
30th Jul 2026258 PMAQI
30th Jul 2026159 PMAQI
30th Jul 20262510 PMAQI
30th Jul 20262111 PMAQI
31st Jul 20262112 AMAQI
31st Jul 2026161 AMAQI
31st Jul 2026442 AMAQI
31st Jul 2026233 AMAQI
31st Jul 2026334 AMAQI
20°C18/24°C
31st Jul 2026215 AMAQI
31st Jul 2026256 AMAQI
31st Jul 2026217 AMAQI
31st Jul 2026248 AMAQI
31st Jul 2026219 AMAQI
31st Jul 20262010 AMAQI
31st Jul 20262411 AMAQI
31st Jul 20263412 PMAQI
31st Jul 2026241 PMAQI
31st Jul 2026352 PMAQI
31st Jul 2026213 PMAQI
31st Jul 2026274 PMAQI
31st Jul 2026255 PMAQI
31st Jul 2026366 PMAQI
31st Jul 2026257 PMAQI
31st Jul 2026238 PMAQI
31st Jul 2026239 PMAQI
31st Jul 20262410 PMAQI
31st Jul 20263111 PMAQI
1st Aug 20263912 AMAQI
1st Aug 2026391 AMAQI
1st Aug 2026392 AMAQI
1st Aug 2026393 AMAQI
1st Aug 2026224 AMAQI
22°C17/29°C
1st Aug 2026275 AMAQI
1st Aug 2026366 AMAQI
1st Aug 2026357 AMAQI
1st Aug 2026348 AMAQI
1st Aug 2026359 AMAQI
1st Aug 20263610 AMAQI
1st Aug 20263411 AMAQI
1st Aug 20264012 PMAQI
1st Aug 2026371 PMAQI
1st Aug 2026402 PMAQI
1st Aug 2026343 PMAQI
1st Aug 2026354 PMAQI
1st Aug 2026405 PMAQI
1st Aug 2026406 PMAQI
1st Aug 2026377 PMAQI
1st Aug 2026248 PMAQI
1st Aug 2026369 PMAQI
1st Aug 20263310 PMAQI
1st Aug 20262511 PMAQI
2nd Aug 20262612 AMAQI
2nd Aug 2026231 AMAQI
2nd Aug 2026232 AMAQI
2nd Aug 2026233 AMAQI
2nd Aug 2026354 AMAQI
24°C19/31°C
2nd Aug 2026265 AMAQI
2nd Aug 2026216 AMAQI
2nd Aug 2026357 AMAQI
2nd Aug 2026218 AMAQI
2nd Aug 2026219 AMAQI
2nd Aug 20262510 AMAQI
2nd Aug 20262611 AMAQI
2nd Aug 20263712 PMAQI
2nd Aug 2026341 PMAQI
2nd Aug 2026422 PMAQI
2nd Aug 2026403 PMAQI
2nd Aug 2026344 PMAQI
2nd Aug 2026345 PMAQI
2nd Aug 2026366 PMAQI
2nd Aug 2026367 PMAQI
2nd Aug 2026308 PMAQI
2nd Aug 2026259 PMAQI
2nd Aug 20262910 PMAQI
2nd Aug 20263411 PMAQI
3rd Aug 20262712 AMAQI
3rd Aug 2026331 AMAQI
3rd Aug 2026362 AMAQI
3rd Aug 2026303 AMAQI
3rd Aug 2026414 AMAQI
25°C22/29°C
3rd Aug 2026505 AMAQI
3rd Aug 2026476 AMAQI
3rd Aug 2026497 AMAQI
3rd Aug 2026398 AMAQI
3rd Aug 2026419 AMAQI
3rd Aug 20263610 AMAQI
3rd Aug 20263611 AMAQI
3rd Aug 20263812 PMAQI
3rd Aug 2026361 PMAQI
3rd Aug 2026362 PMAQI
3rd Aug 2026343 PMAQI
3rd Aug 2026424 PMAQI
3rd Aug 2026185 PMAQI
3rd Aug 2026326 PMAQI
3rd Aug 2026387 PMAQI
3rd Aug 2026448 PMAQI
3rd Aug 2026479 PMAQI
3rd Aug 20264210 PMAQI
3rd Aug 20263811 PMAQI
4th Aug 20263412 AMAQI
4th Aug 2026261 AMAQI
4th Aug 2026182 AMAQI
4th Aug 2026233 AMAQI
4th Aug 2026184 AMAQI
24°C20/29°C
4th Aug 2026145 AMAQI
4th Aug 2026236 AMAQI
4th Aug 2026227 AMAQI
4th Aug 2026208 AMAQI
4th Aug 2026219 AMAQI
4th Aug 20262710 AMAQI
4th Aug 20262311 AMAQI
4th Aug 20261812 PMAQI
4th Aug 2026251 PMAQI
4th Aug 2026362 PMAQI
4th Aug 2026523 PMAQI
4th Aug 2026384 PMAQI
4th Aug 2026385 PMAQI
4th Aug 2026296 PMAQI
4th Aug 2026297 PMAQI
4th Aug 2026148 PMAQI
4th Aug 2026109 PMAQI
4th Aug 20262010 PMAQI
4th Aug 20262211 PMAQI
5th Aug 20262212 AMAQI
5th Aug 2026251 AMAQI
5th Aug 2026252 AMAQI
5th Aug 2026253 AMAQI
5th Aug 2026254 AMAQI
22°C17/29°C
5th Aug 2026345 AMAQI
5th Aug 2026466 AMAQI
5th Aug 2026327 AMAQI
5th Aug 2026278 AMAQI
5th Aug 2026219 AMAQI
5th Aug 20264010 AMAQI
5th Aug 20262511 AMAQI
5th Aug 20262212 PMAQI
5th Aug 2026291 PMAQI
5th Aug 2026122 PMAQI
5th Aug 2026423 PMAQI
5th Aug 2026254 PMAQI
5th Aug 2026305 PMAQI
5th Aug 2026306 PMAQI
5th Aug 2026197 PMAQI
5th Aug 2026118 PMAQI
5th Aug 2026299 PMAQI
5th Aug 20263410 PMAQI
5th Aug 20264011 PMAQI
6th Aug 20262312 AMAQI
6th Aug 2026361 AMAQI
6th Aug 2026212 AMAQI
6th Aug 2026303 AMAQI
6th Aug 2026364 AMAQI
23°C17/30°C
6th Aug 2026365 AMAQI
6th Aug 2026406 AMAQI
6th Aug 2026427 AMAQI
6th Aug 2026468 AMAQI
6th Aug 2026439 AMAQI
6th Aug 20265010 AMAQI
6th Aug 20264011 AMAQI
6th Aug 20264612 PMAQI
6th Aug 2026451 PMAQI
6th Aug 2026482 PMAQI
6th Aug 2026483 PMAQI
6th Aug 2026544 PMAQI
6th Aug 2026485 PMAQI
6th Aug 2026546 PMAQI
6th Aug 2026437 PMAQI
6th Aug 2026448 PMAQI
6th Aug 2026469 PMAQI
6th Aug 20265010 PMAQI
6th Aug 20264611 PMAQI
7th Aug 20264612 AMAQI
7th Aug 2026321 AMAQI
7th Aug 2026382 AMAQI
7th Aug 2026393 AMAQI
7th Aug 2026424 AMAQI
27°C23/32°C
7th Aug 2026405 AMAQI
7th Aug 2026416 AMAQI
7th Aug 2026387 AMAQI
7th Aug 2026348 AMAQI
7th Aug 2026249 AMAQI
7th Aug 20263710 AMAQI
7th Aug 20262711 AMAQI
7th Aug 20262212 PMAQI
7th Aug 2026241 PMAQI
7th Aug 2026212 PMAQI
7th Aug 2026223 PMAQI
7th Aug 2026234 PMAQI
7th Aug 2026225 PMAQI
7th Aug 2026256 PMAQI
7th Aug 2026247 PMAQI
7th Aug 2026238 PMAQI
7th Aug 2026259 PMAQI
7th Aug 20262510 PMAQI
7th Aug 20262511 PMAQI
8th Aug 20262312 AMAQI
8th Aug 2026251 AMAQI
8th Aug 2026292 AMAQI
8th Aug 2026293 AMAQI
8th Aug 2026344 AMAQI
27°C23/33°C
8th Aug 2026255 AMAQI
8th Aug 2026256 AMAQI
8th Aug 2026257 AMAQI
8th Aug 2026338 AMAQI
8th Aug 2026259 AMAQI
8th Aug 20262510 AMAQI
8th Aug 20262911 AMAQI
8th Aug 20262412 PMAQI
8th Aug 2026221 PMAQI
8th Aug 2026222 PMAQI
8th Aug 2026253 PMAQI
8th Aug 2026234 PMAQI
8th Aug 2026235 PMAQI
8th Aug 2026346 PMAQI
8th Aug 2026367 PMAQI
8th Aug 2026368 PMAQI
8th Aug 2026389 PMAQI
8th Aug 20264110 PMAQI
8th Aug 20263911 PMAQI
9th Aug 20264312 AMAQI
9th Aug 2026411 AMAQI
9th Aug 2026382 AMAQI
9th Aug 2026323 AMAQI
9th Aug 2026364 AMAQI
25°C21/31°C
9th Aug 2026365 AMAQI
5 AM9th Aug 2026366 AMAQI
9th Aug 2026367 AMAQI
9th Aug 2026368 AMAQI
9th Aug 2026379 AMAQI
9th Aug 20263910 AMAQI
9th Aug 20263711 AMAQI
9th Aug 20264012 PMAQI
12 PM9th Aug 2026421 PMAQI
9th Aug 2026422 PMAQI
9th Aug 2026413 PMAQI
9th Aug 2026444 PMAQI
9th Aug 2026435 PMAQI
9th Aug 2026406 PMAQI
9th Aug 2026407 PMAQI
9th Aug 2026388 PMAQI
8 PM9th Aug 2026409 PMAQI
9th Aug 20264410 PMAQI
9th Aug 20263911 PMAQI
12 AM
4 AM
26°C22/32°C
Day time
Avg. Highest Time
3 PM
42AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
5 AM
36AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 3 PM to 3 PM (Avg. 42), while the lowest AQI was between 5 AM to 5 AM (Avg. 36).
Night time
Avg. Highest Time
12 AM - 10 PM
36AQI
7 hours / Day
210 hours / Month
Avg. Lowest Time
12 AM - 11 PM
36AQI
8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 10 PM (Avg. 36), while the lowest AQI was between 12 AM to 11 PM (Avg. 36).
2026 Days Vs Air Quality
Danbury, Connecticut, United States
2026
95%
206
5%
10
0.4%
1
Total number of days with different AQI categories in last 221 days in 2026 (144 days remaining)
Good
206 DaysModerate
10 DaysPoor
1 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 95%
Health Risk Level:
Very Low
In 2026, 95% of 221 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
Danbury, Connecticut, 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
21AQI (US)
21AQI (US)
2nd January 2026
24AQI (US)
24AQI (US)
3rd January 2026
21AQI (US)
21AQI (US)
4th January 2026
42AQI (US)
42AQI (US)
5th January 2026
23AQI (US)
23AQI (US)
6th January 2026
57AQI (US)
57AQI (US)
7th January 2026
42AQI (US)
42AQI (US)
8th January 2026
26AQI (US)
26AQI (US)
9th January 2026
51AQI (US)
51AQI (US)
10th January 2026
24AQI (US)
24AQI (US)
11th January 2026
15AQI (US)
15AQI (US)
12th January 2026
13AQI (US)
13AQI (US)
13th January 2026
31AQI (US)
31AQI (US)
14th January 2026
40AQI (US)
40AQI (US)
15th January 2026
37AQI (US)
37AQI (US)
16th January 2026
11AQI (US)
11AQI (US)
17th January 2026
40AQI (US)
40AQI (US)
18th January 2026
77AQI (US)
77AQI (US)
19th January 2026
30AQI (US)
30AQI (US)
20th January 2026
28AQI (US)
28AQI (US)
21st January 2026
26AQI (US)
26AQI (US)
22nd January 2026
35AQI (US)
35AQI (US)
23rd January 2026
38AQI (US)
38AQI (US)
24th January 2026
31AQI (US)
31AQI (US)
25th January 2026
35AQI (US)
35AQI (US)
26th January 2026
47AQI (US)
47AQI (US)
27th January 2026
27AQI (US)
27AQI (US)
28th January 2026
27AQI (US)
27AQI (US)
29th January 2026
37AQI (US)
37AQI (US)
30th January 2026
51AQI (US)
51AQI (US)
31st January 2026
29AQI (US)
29AQI (US)
1st February 2026
29AQI (US)
29AQI (US)
2nd February 2026
33AQI (US)
33AQI (US)
3rd February 2026
35AQI (US)
35AQI (US)
4th February 2026
32AQI (US)
32AQI (US)
5th February 2026
43AQI (US)
43AQI (US)
6th February 2026
42AQI (US)
42AQI (US)
7th February 2026
30AQI (US)
30AQI (US)
8th February 2026
26AQI (US)
26AQI (US)
9th February 2026
39AQI (US)
39AQI (US)
10th February 2026
39AQI (US)
39AQI (US)
11th February 2026
34AQI (US)
34AQI (US)
12th February 2026
31AQI (US)
31AQI (US)
13th February 2026
32AQI (US)
32AQI (US)
14th February 2026
37AQI (US)
37AQI (US)
15th February 2026
41AQI (US)
41AQI (US)
16th February 2026
32AQI (US)
32AQI (US)
17th February 2026
49AQI (US)
49AQI (US)
18th February 2026
50AQI (US)
50AQI (US)
19th February 2026
28AQI (US)
28AQI (US)
20th February 2026
30AQI (US)
30AQI (US)
21st February 2026
39AQI (US)
39AQI (US)
22nd February 2026
39AQI (US)
39AQI (US)
23rd February 2026
35AQI (US)
35AQI (US)
24th February 2026
38AQI (US)
38AQI (US)
25th February 2026
35AQI (US)
35AQI (US)
26th February 2026
30AQI (US)
30AQI (US)
27th February 2026
25AQI (US)
25AQI (US)
28th February 2026
29AQI (US)
29AQI (US)
1st March 2026
35AQI (US)
35AQI (US)
2nd March 2026
42AQI (US)
42AQI (US)
3rd March 2026
27AQI (US)
27AQI (US)
4th March 2026
31AQI (US)
31AQI (US)
5th March 2026
28AQI (US)
28AQI (US)
6th March 2026
26AQI (US)
26AQI (US)
7th March 2026
27AQI (US)
27AQI (US)
8th March 2026
24AQI (US)
24AQI (US)
9th March 2026
27AQI (US)
27AQI (US)
10th March 2026
31AQI (US)
31AQI (US)
11th March 2026
39AQI (US)
39AQI (US)
12th March 2026
32AQI (US)
32AQI (US)
13th March 2026
30AQI (US)
30AQI (US)
14th March 2026
24AQI (US)
24AQI (US)
15th March 2026
21AQI (US)
21AQI (US)
16th March 2026
29AQI (US)
29AQI (US)
17th March 2026
32AQI (US)
32AQI (US)
18th March 2026
25AQI (US)
25AQI (US)
19th March 2026
25AQI (US)
25AQI (US)
20th March 2026
30AQI (US)
30AQI (US)
21st March 2026
35AQI (US)
35AQI (US)
22nd March 2026
25AQI (US)
25AQI (US)
23rd March 2026
39AQI (US)
39AQI (US)
24th March 2026
34AQI (US)
34AQI (US)
25th March 2026
26AQI (US)
26AQI (US)
26th March 2026
20AQI (US)
20AQI (US)
27th March 2026
24AQI (US)
24AQI (US)
28th March 2026
18AQI (US)
18AQI (US)
29th March 2026
14AQI (US)
14AQI (US)
30th March 2026
19AQI (US)
19AQI (US)
31st March 2026
20AQI (US)
20AQI (US)
1st April 2026
27AQI (US)
27AQI (US)
2nd April 2026
26AQI (US)
26AQI (US)
3rd April 2026
22AQI (US)
22AQI (US)
4th April 2026
24AQI (US)
24AQI (US)
5th April 2026
28AQI (US)
28AQI (US)
6th April 2026
30AQI (US)
30AQI (US)
7th April 2026
21AQI (US)
21AQI (US)
8th April 2026
32AQI (US)
32AQI (US)
9th April 2026
18AQI (US)
18AQI (US)
10th April 2026
24AQI (US)
24AQI (US)
11th April 2026
26AQI (US)
26AQI (US)
12th April 2026
21AQI (US)
21AQI (US)
13th April 2026
22AQI (US)
22AQI (US)
14th April 2026
23AQI (US)
23AQI (US)
15th April 2026
24AQI (US)
24AQI (US)
16th April 2026
22AQI (US)
22AQI (US)
17th April 2026
18th April 2026
26AQI (US)
26AQI (US)
19th April 2026
32AQI (US)
32AQI (US)
20th April 2026
22AQI (US)
22AQI (US)
21st April 2026
18AQI (US)
18AQI (US)
22nd April 2026
23rd April 2026
17AQI (US)
17AQI (US)
24th April 2026
15AQI (US)
15AQI (US)
25th April 2026
15AQI (US)
15AQI (US)
26th April 2026
33AQI (US)
33AQI (US)
27th April 2026
18AQI (US)
18AQI (US)
28th April 2026
20AQI (US)
20AQI (US)
29th April 2026
21AQI (US)
21AQI (US)
30th April 2026
21AQI (US)
21AQI (US)
1st May 2026
23AQI (US)
23AQI (US)
2nd May 2026
17AQI (US)
17AQI (US)
3rd May 2026
20AQI (US)
20AQI (US)
4th May 2026
33AQI (US)
33AQI (US)
5th May 2026
35AQI (US)
35AQI (US)
6th May 2026
22AQI (US)
22AQI (US)
7th May 2026
23AQI (US)
23AQI (US)
8th May 2026
23AQI (US)
23AQI (US)
9th May 2026
10th May 2026
21AQI (US)
21AQI (US)
11th May 2026
24AQI (US)
24AQI (US)
12th May 2026
27AQI (US)
27AQI (US)
13th May 2026
19AQI (US)
19AQI (US)
14th May 2026
16AQI (US)
16AQI (US)
15th May 2026
45AQI (US)
45AQI (US)
16th May 2026
40AQI (US)
40AQI (US)
17th May 2026
50AQI (US)
50AQI (US)
18th May 2026
54AQI (US)
54AQI (US)
19th May 2026
55AQI (US)
55AQI (US)
20th May 2026
47AQI (US)
47AQI (US)
21st May 2026
36AQI (US)
36AQI (US)
22nd May 2026
38AQI (US)
38AQI (US)
23rd May 2026
39AQI (US)
39AQI (US)
24th May 2026
44AQI (US)
44AQI (US)
25th May 2026
42AQI (US)
42AQI (US)
26th May 2026
18AQI (US)
18AQI (US)
27th May 2026
13AQI (US)
13AQI (US)
28th May 2026
13AQI (US)
13AQI (US)
29th May 2026
15AQI (US)
15AQI (US)
30th May 2026
13AQI (US)
13AQI (US)
31st May 2026
12AQI (US)
12AQI (US)
1st June 2026
16AQI (US)
16AQI (US)
2nd June 2026
14AQI (US)
14AQI (US)
3rd June 2026
14AQI (US)
14AQI (US)
4th June 2026
16AQI (US)
16AQI (US)
5th June 2026
24AQI (US)
24AQI (US)
6th June 2026
23AQI (US)
23AQI (US)
7th June 2026
11AQI (US)
11AQI (US)
8th June 2026
13AQI (US)
13AQI (US)
9th June 2026
13AQI (US)
13AQI (US)
10th June 2026
15AQI (US)
15AQI (US)
11th June 2026
16AQI (US)
16AQI (US)
12th June 2026
15AQI (US)
15AQI (US)
13th June 2026
12AQI (US)
12AQI (US)
14th June 2026
15AQI (US)
15AQI (US)
15th June 2026
14AQI (US)
14AQI (US)
16th June 2026
18AQI (US)
18AQI (US)
17th June 2026
12AQI (US)
12AQI (US)
18th June 2026
18AQI (US)
18AQI (US)
19th June 2026
12AQI (US)
12AQI (US)
20th June 2026
13AQI (US)
13AQI (US)
21st June 2026
12AQI (US)
12AQI (US)
22nd June 2026
12AQI (US)
12AQI (US)
23rd June 2026
16AQI (US)
16AQI (US)
24th June 2026
13AQI (US)
13AQI (US)
25th June 2026
15AQI (US)
15AQI (US)
26th June 2026
15AQI (US)
15AQI (US)
27th June 2026
18AQI (US)
18AQI (US)
28th June 2026
15AQI (US)
15AQI (US)
29th June 2026
14AQI (US)
14AQI (US)
30th June 2026
21AQI (US)
21AQI (US)
1st July 2026
20AQI (US)
20AQI (US)
2nd July 2026
52AQI (US)
52AQI (US)
3rd July 2026
41AQI (US)
41AQI (US)
4th July 2026
17AQI (US)
17AQI (US)
5th July 2026
23AQI (US)
23AQI (US)
6th July 2026
19AQI (US)
19AQI (US)
7th July 2026
10AQI (US)
10AQI (US)
8th July 2026
13AQI (US)
13AQI (US)
9th July 2026
12AQI (US)
12AQI (US)
10th July 2026
13AQI (US)
13AQI (US)
11th July 2026
17AQI (US)
17AQI (US)
12th July 2026
17AQI (US)
17AQI (US)
13th July 2026
18AQI (US)
18AQI (US)
14th July 2026
19AQI (US)
19AQI (US)
15th July 2026
52AQI (US)
52AQI (US)
16th July 2026
74AQI (US)
74AQI (US)
17th July 2026
87AQI (US)
87AQI (US)
18th July 2026
113AQI (US)
113AQI (US)
19th July 2026
50AQI (US)
50AQI (US)
20th July 2026
29AQI (US)
29AQI (US)
21st July 2026
37AQI (US)
37AQI (US)
22nd July 2026
30AQI (US)
30AQI (US)
23rd July 2026
36AQI (US)
36AQI (US)
24th July 2026
32AQI (US)
32AQI (US)
25th July 2026
30AQI (US)
30AQI (US)
26th July 2026
30AQI (US)
30AQI (US)
27th July 2026
34AQI (US)
34AQI (US)
28th July 2026
42AQI (US)
42AQI (US)
29th July 2026
32AQI (US)
32AQI (US)
30th July 2026
25AQI (US)
25AQI (US)
31st July 2026
26AQI (US)
26AQI (US)
1st August 2026
35AQI (US)
35AQI (US)
2nd August 2026
30AQI (US)
30AQI (US)
3rd August 2026
38AQI (US)
38AQI (US)
4th August 2026
25AQI (US)
25AQI (US)
5th August 2026
28AQI (US)
28AQI (US)
6th August 2026
42AQI (US)
42AQI (US)
7th August 2026
30AQI (US)
30AQI (US)
8th August 2026
29AQI (US)
29AQI (US)
9th August 2026
10th August 2026
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
33AQI (US)
35AQI (US)
28AQI (US)
23AQI (US)
29AQI (US)
15AQI (US)
34AQI (US)
32AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202628AQI (US)
27
4
28
31
28
28
2
30
26
4
1
8
206
10
1
Highest AQI (US) recorded in
February35AQI (US)
Lowest AQI (US) recorded in
June15AQI (US)
202532AQI (US)
26
5
25
3
30
1
29
1
31
18
12
23
8
21
9
1
30
29
2
27
3
27
4
316
48
1
Highest AQI (US) recorded in
June43AQI (US)
Lowest AQI (US) recorded in
May24AQI (US)
202428AQI (US)
29
2
26
3
31
30
31
28
1
26
4
25
6
30
28
3
30
28
3
342
22
Highest AQI (US) recorded in
July36AQI (US)
Lowest AQI (US) recorded in
March21AQI (US)
202333AQI (US)
29
2
25
3
29
2
28
2
29
2
20
6
3
1
24
6
1
28
3
27
3
30
1
26
3
22
9
317
42
4
1
Highest AQI (US) recorded in
June52AQI (US)
Lowest AQI (US) recorded in
October25AQI (US)
202229AQI (US)
21
9
18
3
27
4
29
30
1
30
23
1
29
29
2
28
2
24
7
289
28
Highest AQI (US) recorded in
January40AQI (US)
Lowest AQI (US) recorded in
August21AQI (US)
202132AQI (US)
23
5
24
4
30
1
27
3
30
1
28
2
22
7
2
29
2
29
1
31
23
7
20
9
316
42
2
Highest AQI (US) recorded in
July42AQI (US)
Lowest AQI (US) recorded in
October26AQI (US)
202033AQI (US)
13
20
18
30
28
3
30
1
27
3
30
1
23
7
24
5
2
243
20
2
Highest AQI (US) recorded in
November40AQI (US)
Lowest AQI (US) recorded in
March23AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2023(Avg.)
33AQI (US)Least Polluted Year Recorded
2024(Avg.)
28AQI (US)Danbury's annual 2026 AQI (US) (28) shows an average percentage change of -9.7% (improved AQI (US)) compared to previous years: 2020 (33), 2021 (32), 2022 (29), 2023 (33), 2024 (28), 2025 (32).
