Concord, California, 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
Concord, California, United States
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2025
35AQILowest AQI recorded on
2nd Aug 2025
20AQISame Day Analysis (10th August ):
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: 10th Aug - 11th Aug 2025
Concord, California, United States
AQI
Day
Night
.
6 AM10th Aug 2025
8 PM
5 AM11th Aug 2025
Day time
Avg. Highest Time
6AM10th Aug
30AQI
Avg. Lowest Time
11AM10th Aug
23AQI
Night time
Avg. Highest Time
2AM11th Aug
31AQI
Avg. Lowest Time
5AM11th Aug
21AQI
In the last 24 hours,
Concord's AQI reached its highest point of 31 at 2 AM during the Night, while the lowest point, 21, was recorded at 5 AM during the Night between 10th Aug and 11th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Concord, California, United States
JulAug
12th - 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 - 10th10th - 11th11th
Day
Night
12th Jul 2025316 AMAQI
12th Jul 2025327 AMAQI
12th Jul 2025288 AMAQI
12th Jul 2025289 AMAQI
12th Jul 20252810 AMAQI
12th Jul 20252811 AMAQI
12th Jul 20252712 PMAQI
12th Jul 2025271 PMAQI
12th Jul 2025262 PMAQI
12th Jul 2025273 PMAQI
12th Jul 2025264 PMAQI
12th Jul 2025285 PMAQI
12th Jul 2025296 PMAQI
12th Jul 2025277 PMAQI
12th Jul 2025308 PMAQI
12th Jul 2025359 PMAQI
12th Jul 20253310 PMAQI
12th Jul 20253311 PMAQI
13th Jul 20253512 AMAQI
13th Jul 2025381 AMAQI
13th Jul 2025342 AMAQI
13th Jul 2025283 AMAQI
13th Jul 2025264 AMAQI
13th Jul 2025265 AMAQI
19°C13/28°C
13th Jul 2025256 AMAQI
13th Jul 2025267 AMAQI
13th Jul 2025248 AMAQI
13th Jul 2025239 AMAQI
13th Jul 20252810 AMAQI
13th Jul 20252811 AMAQI
13th Jul 20252612 PMAQI
13th Jul 2025191 PMAQI
13th Jul 2025212 PMAQI
13th Jul 2025233 PMAQI
13th Jul 2025244 PMAQI
13th Jul 2025225 PMAQI
13th Jul 2025216 PMAQI
13th Jul 2025267 PMAQI
13th Jul 2025218 PMAQI
13th Jul 2025239 PMAQI
13th Jul 20252610 PMAQI
13th Jul 20252611 PMAQI
14th Jul 20252412 AMAQI
14th Jul 2025231 AMAQI
14th Jul 2025232 AMAQI
14th Jul 2025243 AMAQI
14th Jul 2025234 AMAQI
14th Jul 2025235 AMAQI
19°C13/29°C
14th Jul 2025226 AMAQI
14th Jul 2025227 AMAQI
14th Jul 2025228 AMAQI
14th Jul 2025229 AMAQI
14th Jul 20252010 AMAQI
14th Jul 20251911 AMAQI
14th Jul 20252212 PMAQI
14th Jul 2025191 PMAQI
14th Jul 2025192 PMAQI
14th Jul 2025193 PMAQI
14th Jul 2025224 PMAQI
14th Jul 2025205 PMAQI
14th Jul 2025206 PMAQI
14th Jul 2025197 PMAQI
14th Jul 2025218 PMAQI
14th Jul 2025269 PMAQI
14th Jul 20252910 PMAQI
14th Jul 20253211 PMAQI
15th Jul 20253012 AMAQI
15th Jul 2025301 AMAQI
15th Jul 2025282 AMAQI
15th Jul 2025273 AMAQI
15th Jul 2025254 AMAQI
15th Jul 2025255 AMAQI
20°C11/32°C
15th Jul 2025256 AMAQI
15th Jul 2025257 AMAQI
15th Jul 2025258 AMAQI
15th Jul 2025259 AMAQI
15th Jul 20252810 AMAQI
15th Jul 20252711 AMAQI
15th Jul 20252912 PMAQI
15th Jul 2025291 PMAQI
15th Jul 2025302 PMAQI
15th Jul 2025283 PMAQI
15th Jul 2025284 PMAQI
15th Jul 2025285 PMAQI
15th Jul 2025286 PMAQI
15th Jul 2025277 PMAQI
15th Jul 2025278 PMAQI
15th Jul 2025299 PMAQI
15th Jul 20253110 PMAQI
15th Jul 20253111 PMAQI
16th Jul 20253312 AMAQI
16th Jul 2025341 AMAQI
16th Jul 2025342 AMAQI
16th Jul 2025353 AMAQI
16th Jul 2025334 AMAQI
16th Jul 2025335 AMAQI
16°C13/25°C
16th Jul 2025326 AMAQI
16th Jul 2025337 AMAQI
16th Jul 2025328 AMAQI
16th Jul 2025319 AMAQI
16th Jul 20253110 AMAQI
16th Jul 20253011 AMAQI
16th Jul 20253012 PMAQI
16th Jul 2025271 PMAQI
16th Jul 2025272 PMAQI
16th Jul 2025283 PMAQI
16th Jul 2025304 PMAQI
16th Jul 2025285 PMAQI
16th Jul 2025286 PMAQI
16th Jul 2025297 PMAQI
16th Jul 2025298 PMAQI
16th Jul 2025309 PMAQI
16th Jul 20253310 PMAQI
16th Jul 20253311 PMAQI
17th Jul 20253412 AMAQI
17th Jul 2025351 AMAQI
17th Jul 2025292 AMAQI
17th Jul 2025273 AMAQI
17th Jul 2025264 AMAQI
17th Jul 2025285 AMAQI
17°C14/22°C
17th Jul 2025266 AMAQI
17th Jul 2025267 AMAQI
17th Jul 2025268 AMAQI
17th Jul 2025269 AMAQI
17th Jul 20252510 AMAQI
17th Jul 20252511 AMAQI
17th Jul 20252612 PMAQI
17th Jul 2025281 PMAQI
17th Jul 2025252 PMAQI
17th Jul 2025253 PMAQI
17th Jul 2025234 PMAQI
17th Jul 2025245 PMAQI
17th Jul 2025266 PMAQI
17th Jul 2025227 PMAQI
17th Jul 2025238 PMAQI
17th Jul 2025289 PMAQI
17th Jul 20252910 PMAQI
17th Jul 20253311 PMAQI
18th Jul 20253312 AMAQI
18th Jul 2025341 AMAQI
18th Jul 2025292 AMAQI
18th Jul 2025233 AMAQI
18th Jul 2025234 AMAQI
18th Jul 2025225 AMAQI
19°C14/27°C
18th Jul 2025226 AMAQI
18th Jul 2025217 AMAQI
18th Jul 2025228 AMAQI
18th Jul 2025219 AMAQI
18th Jul 20251910 AMAQI
18th Jul 20251811 AMAQI
18th Jul 20251812 PMAQI
18th Jul 2025181 PMAQI
18th Jul 2025222 PMAQI
18th Jul 2025223 PMAQI
18th Jul 2025224 PMAQI
18th Jul 2025205 PMAQI
18th Jul 2025226 PMAQI
18th Jul 2025197 PMAQI
18th Jul 2025198 PMAQI
18th Jul 2025219 PMAQI
18th Jul 20252310 PMAQI
18th Jul 20252411 PMAQI
19th Jul 20252712 AMAQI
19th Jul 2025301 AMAQI
19th Jul 2025302 AMAQI
19th Jul 2025273 AMAQI
19th Jul 2025274 AMAQI
19th Jul 2025275 AMAQI
19°C14/27°C
19th Jul 2025266 AMAQI
19th Jul 2025267 AMAQI
19th Jul 2025268 AMAQI
19th Jul 2025259 AMAQI
19th Jul 20252210 AMAQI
19th Jul 20252411 AMAQI
19th Jul 20252612 PMAQI
19th Jul 2025211 PMAQI
19th Jul 2025252 PMAQI
19th Jul 2025223 PMAQI
19th Jul 2025204 PMAQI
19th Jul 2025185 PMAQI
19th Jul 2025196 PMAQI
19th Jul 2025217 PMAQI
19th Jul 2025238 PMAQI
19th Jul 2025299 PMAQI
19th Jul 20253410 PMAQI
19th Jul 20253711 PMAQI
20th Jul 20253612 AMAQI
20th Jul 2025301 AMAQI
20th Jul 2025292 AMAQI
20th Jul 2025273 AMAQI
20th Jul 2025274 AMAQI
20th Jul 2025265 AMAQI
18°C13/27°C
20th Jul 2025266 AMAQI
20th Jul 2025267 AMAQI
20th Jul 2025258 AMAQI
20th Jul 2025259 AMAQI
20th Jul 20252510 AMAQI
20th Jul 20252411 AMAQI
20th Jul 20252112 PMAQI
20th Jul 2025241 PMAQI
20th Jul 2025222 PMAQI
20th Jul 2025223 PMAQI
20th Jul 2025214 PMAQI
20th Jul 2025205 PMAQI
20th Jul 2025246 PMAQI
20th Jul 2025247 PMAQI
20th Jul 2025248 PMAQI
20th Jul 2025289 PMAQI
20th Jul 20253310 PMAQI
20th Jul 20253511 PMAQI
21st Jul 20253612 AMAQI
21st Jul 2025351 AMAQI
21st Jul 2025362 AMAQI
21st Jul 2025343 AMAQI
21st Jul 2025334 AMAQI
21st Jul 2025325 AMAQI
17°C12/24°C
21st Jul 2025326 AMAQI
21st Jul 2025337 AMAQI
21st Jul 2025348 AMAQI
21st Jul 2025339 AMAQI
21st Jul 20253110 AMAQI
21st Jul 20252911 AMAQI
21st Jul 20252912 PMAQI
21st Jul 2025261 PMAQI
21st Jul 2025262 PMAQI
21st Jul 2025223 PMAQI
21st Jul 2025234 PMAQI
21st Jul 2025235 PMAQI
21st Jul 2025216 PMAQI
21st Jul 2025217 PMAQI
21st Jul 2025238 PMAQI
21st Jul 2025239 PMAQI
21st Jul 20252610 PMAQI
21st Jul 20252611 PMAQI
22nd Jul 20252912 AMAQI
22nd Jul 2025271 AMAQI
22nd Jul 2025262 AMAQI
22nd Jul 2025263 AMAQI
22nd Jul 2025264 AMAQI
22nd Jul 2025265 AMAQI
16°C13/20°C
22nd Jul 2025256 AMAQI
22nd Jul 2025247 AMAQI
22nd Jul 2025258 AMAQI
22nd Jul 2025259 AMAQI
22nd Jul 20252310 AMAQI
22nd Jul 20252211 AMAQI
22nd Jul 20252112 PMAQI
22nd Jul 2025211 PMAQI
22nd Jul 2025192 PMAQI
22nd Jul 2025183 PMAQI
22nd Jul 2025214 PMAQI
22nd Jul 2025175 PMAQI
22nd Jul 2025166 PMAQI
22nd Jul 2025157 PMAQI
22nd Jul 2025158 PMAQI
22nd Jul 2025179 PMAQI
22nd Jul 20252110 PMAQI
22nd Jul 20252311 PMAQI
23rd Jul 20252212 AMAQI
23rd Jul 2025211 AMAQI
23rd Jul 2025232 AMAQI
23rd Jul 2025253 AMAQI
23rd Jul 2025254 AMAQI
23rd Jul 2025245 AMAQI
17°C14/23°C
23rd Jul 2025246 AMAQI
23rd Jul 2025257 AMAQI
23rd Jul 2025258 AMAQI
23rd Jul 2025269 AMAQI
23rd Jul 20252010 AMAQI
23rd Jul 20251911 AMAQI
23rd Jul 20251912 PMAQI
23rd Jul 2025191 PMAQI
23rd Jul 2025192 PMAQI
23rd Jul 2025173 PMAQI
23rd Jul 2025184 PMAQI
23rd Jul 2025185 PMAQI
23rd Jul 2025176 PMAQI
23rd Jul 2025177 PMAQI
23rd Jul 2025188 PMAQI
23rd Jul 2025209 PMAQI
23rd Jul 20252310 PMAQI
23rd Jul 20252311 PMAQI
24th Jul 20252312 AMAQI
24th Jul 2025241 AMAQI
24th Jul 2025252 AMAQI
24th Jul 2025273 AMAQI
24th Jul 2025264 AMAQI
24th Jul 2025265 AMAQI
18°C14/24°C
24th Jul 2025256 AMAQI
24th Jul 2025267 AMAQI
24th Jul 2025258 AMAQI
24th Jul 2025269 AMAQI
24th Jul 20252810 AMAQI
24th Jul 20252511 AMAQI
24th Jul 20252312 PMAQI
24th Jul 2025221 PMAQI
24th Jul 2025232 PMAQI
24th Jul 2025213 PMAQI
24th Jul 2025214 PMAQI
24th Jul 2025215 PMAQI
24th Jul 2025216 PMAQI
24th Jul 2025207 PMAQI
24th Jul 2025228 PMAQI
24th Jul 2025249 PMAQI
24th Jul 20252710 PMAQI
24th Jul 20253011 PMAQI
25th Jul 20252812 AMAQI
25th Jul 2025291 AMAQI
25th Jul 2025302 AMAQI
25th Jul 2025303 AMAQI
25th Jul 2025294 AMAQI
25th Jul 2025285 AMAQI
18°C14/25°C
25th Jul 2025276 AMAQI
25th Jul 2025287 AMAQI
25th Jul 2025288 AMAQI
25th Jul 2025299 AMAQI
25th Jul 20252810 AMAQI
25th Jul 20252811 AMAQI
25th Jul 20252612 PMAQI
25th Jul 2025241 PMAQI
25th Jul 2025242 PMAQI
25th Jul 2025243 PMAQI
25th Jul 2025224 PMAQI
25th Jul 2025225 PMAQI
25th Jul 2025226 PMAQI
25th Jul 2025227 PMAQI
25th Jul 2025228 PMAQI
25th Jul 2025229 PMAQI
25th Jul 20252510 PMAQI
25th Jul 20252811 PMAQI
26th Jul 20253112 AMAQI
26th Jul 2025301 AMAQI
26th Jul 2025312 AMAQI
26th Jul 2025303 AMAQI
26th Jul 2025304 AMAQI
26th Jul 2025315 AMAQI
17°C14/22°C
26th Jul 2025316 AMAQI
26th Jul 2025327 AMAQI
26th Jul 2025348 AMAQI
26th Jul 2025369 AMAQI
26th Jul 20253610 AMAQI
26th Jul 20253311 AMAQI
26th Jul 20253212 PMAQI
26th Jul 2025311 PMAQI
26th Jul 2025322 PMAQI
26th Jul 2025313 PMAQI
26th Jul 2025304 PMAQI
26th Jul 2025305 PMAQI
26th Jul 2025306 PMAQI
26th Jul 2025307 PMAQI
26th Jul 2025288 PMAQI
26th Jul 2025309 PMAQI
26th Jul 20253310 PMAQI
26th Jul 20253411 PMAQI
27th Jul 20253512 AMAQI
27th Jul 2025341 AMAQI
27th Jul 2025392 AMAQI
27th Jul 2025403 AMAQI
27th Jul 2025394 AMAQI
27th Jul 2025395 AMAQI
17°C14/22°C
27th Jul 2025386 AMAQI
27th Jul 2025387 AMAQI
27th Jul 2025388 AMAQI
27th Jul 2025389 AMAQI
27th Jul 20253310 AMAQI
27th Jul 20253011 AMAQI
27th Jul 20253112 PMAQI
27th Jul 2025301 PMAQI
27th Jul 2025302 PMAQI
27th Jul 2025313 PMAQI
27th Jul 2025304 PMAQI
27th Jul 2025305 PMAQI
27th Jul 2025306 PMAQI
27th Jul 2025297 PMAQI
27th Jul 2025288 PMAQI
27th Jul 2025289 PMAQI
27th Jul 20253210 PMAQI
27th Jul 20253411 PMAQI
28th Jul 20253412 AMAQI
28th Jul 2025331 AMAQI
28th Jul 2025332 AMAQI
28th Jul 2025343 AMAQI
28th Jul 2025344 AMAQI
28th Jul 2025335 AMAQI
17°C14/23°C
28th Jul 2025316 AMAQI
28th Jul 2025327 AMAQI
28th Jul 2025328 AMAQI
28th Jul 2025309 AMAQI
28th Jul 20252610 AMAQI
28th Jul 20252511 AMAQI
28th Jul 20252512 PMAQI
28th Jul 2025261 PMAQI
28th Jul 2025272 PMAQI
28th Jul 2025273 PMAQI
28th Jul 2025284 PMAQI
28th Jul 2025285 PMAQI
28th Jul 2025286 PMAQI
28th Jul 2025287 PMAQI
28th Jul 2025278 PMAQI
28th Jul 2025299 PMAQI
28th Jul 20253210 PMAQI
28th Jul 20253111 PMAQI
29th Jul 20253012 AMAQI
29th Jul 2025301 AMAQI
29th Jul 2025322 AMAQI
29th Jul 2025323 AMAQI
29th Jul 2025314 AMAQI
29th Jul 2025305 AMAQI
20°C14/29°C
29th Jul 2025306 AMAQI
29th Jul 2025307 AMAQI
29th Jul 2025308 AMAQI
29th Jul 2025319 AMAQI
29th Jul 20253410 AMAQI
29th Jul 20253011 AMAQI
29th Jul 20252912 PMAQI
29th Jul 2025261 PMAQI
29th Jul 2025272 PMAQI
29th Jul 2025263 PMAQI
29th Jul 2025274 PMAQI
29th Jul 2025275 PMAQI
29th Jul 2025276 PMAQI
29th Jul 2025287 PMAQI
29th Jul 2025248 PMAQI
29th Jul 2025309 PMAQI
29th Jul 20253110 PMAQI
29th Jul 20253211 PMAQI
30th Jul 20253212 AMAQI
30th Jul 2025301 AMAQI
30th Jul 2025292 AMAQI
30th Jul 2025263 AMAQI
30th Jul 2025264 AMAQI
30th Jul 2025255 AMAQI
19°C12/29°C
30th Jul 2025256 AMAQI
30th Jul 2025277 AMAQI
30th Jul 2025288 AMAQI
30th Jul 2025299 AMAQI
30th Jul 20252810 AMAQI
30th Jul 20252811 AMAQI
30th Jul 20252612 PMAQI
30th Jul 2025271 PMAQI
30th Jul 2025272 PMAQI
30th Jul 2025273 PMAQI
30th Jul 2025244 PMAQI
30th Jul 2025255 PMAQI
30th Jul 2025276 PMAQI
30th Jul 2025267 PMAQI
30th Jul 2025268 PMAQI
30th Jul 2025269 PMAQI
30th Jul 20252910 PMAQI
30th Jul 20252911 PMAQI
31st Jul 20252912 AMAQI
31st Jul 2025281 AMAQI
31st Jul 2025302 AMAQI
31st Jul 2025303 AMAQI
31st Jul 2025304 AMAQI
31st Jul 2025305 AMAQI
17°C13/23°C
31st Jul 2025316 AMAQI
31st Jul 2025347 AMAQI
31st Jul 2025338 AMAQI
31st Jul 2025349 AMAQI
31st Jul 20253510 AMAQI
31st Jul 20253811 AMAQI
31st Jul 20253612 PMAQI
31st Jul 2025351 PMAQI
31st Jul 2025352 PMAQI
31st Jul 2025373 PMAQI
31st Jul 2025364 PMAQI
31st Jul 2025345 PMAQI
31st Jul 2025346 PMAQI
31st Jul 2025317 PMAQI
31st Jul 2025318 PMAQI
31st Jul 2025339 PMAQI
31st Jul 20253410 PMAQI
31st Jul 20253111 PMAQI
1st Aug 20253612 AMAQI
1st Aug 2025311 AMAQI
1st Aug 2025342 AMAQI
1st Aug 2025333 AMAQI
1st Aug 2025344 AMAQI
1st Aug 2025335 AMAQI
20°C14/30°C
1st Aug 2025316 AMAQI
1st Aug 2025307 AMAQI
1st Aug 2025308 AMAQI
1st Aug 2025299 AMAQI
1st Aug 20252810 AMAQI
1st Aug 20252311 AMAQI
1st Aug 20252212 PMAQI
1st Aug 2025231 PMAQI
1st Aug 2025222 PMAQI
1st Aug 2025233 PMAQI
1st Aug 2025234 PMAQI
1st Aug 2025245 PMAQI
1st Aug 2025216 PMAQI
1st Aug 2025277 PMAQI
1st Aug 2025248 PMAQI
1st Aug 2025219 PMAQI
1st Aug 20252410 PMAQI
1st Aug 20252411 PMAQI
2nd Aug 20252612 AMAQI
2nd Aug 2025241 AMAQI
2nd Aug 2025232 AMAQI
2nd Aug 2025243 AMAQI
2nd Aug 2025244 AMAQI
2nd Aug 2025245 AMAQI
19°C14/27°C
2nd Aug 2025236 AMAQI
2nd Aug 2025237 AMAQI
2nd Aug 2025228 AMAQI
2nd Aug 2025229 AMAQI
2nd Aug 20251810 AMAQI
2nd Aug 20251811 AMAQI
2nd Aug 20251912 PMAQI
2nd Aug 2025171 PMAQI
2nd Aug 2025192 PMAQI
2nd Aug 2025203 PMAQI
2nd Aug 2025214 PMAQI
2nd Aug 2025205 PMAQI
2nd Aug 2025226 PMAQI
2nd Aug 2025257 PMAQI
2nd Aug 2025228 PMAQI
2nd Aug 2025259 PMAQI
2nd Aug 20252710 PMAQI
2nd Aug 20252511 PMAQI
3rd Aug 20253412 AMAQI
3rd Aug 2025281 AMAQI
3rd Aug 2025272 AMAQI
3rd Aug 2025283 AMAQI
3rd Aug 2025284 AMAQI
3rd Aug 2025275 AMAQI
19°C14/29°C
3rd Aug 2025276 AMAQI
3rd Aug 2025277 AMAQI
3rd Aug 2025308 AMAQI
3rd Aug 2025339 AMAQI
3rd Aug 20253310 AMAQI
3rd Aug 20253211 AMAQI
3rd Aug 20253612 PMAQI
3rd Aug 2025391 PMAQI
3rd Aug 2025392 PMAQI
3rd Aug 2025413 PMAQI
3rd Aug 2025404 PMAQI
3rd Aug 2025395 PMAQI
3rd Aug 2025396 PMAQI
3rd Aug 2025307 PMAQI
3rd Aug 2025368 PMAQI
3rd Aug 2025429 PMAQI
3rd Aug 20254310 PMAQI
3rd Aug 20254211 PMAQI
4th Aug 20254112 AMAQI
4th Aug 2025381 AMAQI
4th Aug 2025392 AMAQI
4th Aug 2025393 AMAQI
4th Aug 2025374 AMAQI
4th Aug 2025385 AMAQI
19°C13/28°C
4th Aug 2025376 AMAQI
4th Aug 2025387 AMAQI
4th Aug 2025388 AMAQI
4th Aug 2025409 AMAQI
4th Aug 20254310 AMAQI
4th Aug 20254211 AMAQI
4th Aug 20254412 PMAQI
4th Aug 2025511 PMAQI
4th Aug 2025462 PMAQI
4th Aug 2025453 PMAQI
4th Aug 2025444 PMAQI
4th Aug 2025445 PMAQI
4th Aug 2025436 PMAQI
4th Aug 2025427 PMAQI
4th Aug 2025408 PMAQI
4th Aug 2025459 PMAQI
4th Aug 20254410 PMAQI
4th Aug 20254311 PMAQI
5th Aug 20254412 AMAQI
5th Aug 2025441 AMAQI
5th Aug 2025442 AMAQI
5th Aug 2025443 AMAQI
5th Aug 2025444 AMAQI
5th Aug 2025455 AMAQI
20°C12/29°C
5th Aug 2025466 AMAQI
5th Aug 2025447 AMAQI
5th Aug 2025458 AMAQI
5th Aug 2025469 AMAQI
5th Aug 20254310 AMAQI
5th Aug 20254411 AMAQI
5th Aug 20254312 PMAQI
5th Aug 2025441 PMAQI
5th Aug 2025432 PMAQI
5th Aug 2025433 PMAQI
5th Aug 2025424 PMAQI
5th Aug 2025405 PMAQI
5th Aug 2025416 PMAQI
5th Aug 2025417 PMAQI
5th Aug 2025418 PMAQI
5th Aug 2025389 PMAQI
5th Aug 20253610 PMAQI
5th Aug 20254011 PMAQI
6th Aug 20253612 AMAQI
6th Aug 2025351 AMAQI
6th Aug 2025382 AMAQI
6th Aug 2025363 AMAQI
6th Aug 2025344 AMAQI
6th Aug 2025345 AMAQI
18°C11/28°C
6th Aug 2025346 AMAQI
6th Aug 2025357 AMAQI
6th Aug 2025348 AMAQI
6th Aug 2025359 AMAQI
6th Aug 20253410 AMAQI
6th Aug 20253311 AMAQI
6th Aug 20253312 PMAQI
6th Aug 2025321 PMAQI
6th Aug 2025322 PMAQI
6th Aug 2025313 PMAQI
6th Aug 2025304 PMAQI
6th Aug 2025295 PMAQI
6th Aug 2025286 PMAQI
6th Aug 2025327 PMAQI
6th Aug 2025358 PMAQI
6th Aug 2025339 PMAQI
6th Aug 20253310 PMAQI
6th Aug 20253411 PMAQI
7th Aug 20253512 AMAQI
7th Aug 2025311 AMAQI
7th Aug 2025312 AMAQI
7th Aug 2025323 AMAQI
7th Aug 2025304 AMAQI
7th Aug 2025295 AMAQI
22°C12/35°C
7th Aug 2025306 AMAQI
7th Aug 2025327 AMAQI
7th Aug 2025318 AMAQI
7th Aug 2025309 AMAQI
7th Aug 20253210 AMAQI
7th Aug 20253411 AMAQI
7th Aug 20253712 PMAQI
7th Aug 2025341 PMAQI
7th Aug 2025312 PMAQI
7th Aug 2025313 PMAQI
7th Aug 2025304 PMAQI
7th Aug 2025295 PMAQI
7th Aug 2025306 PMAQI
7th Aug 2025307 PMAQI
7th Aug 2025308 PMAQI
7th Aug 2025309 PMAQI
7th Aug 20253210 PMAQI
7th Aug 20253211 PMAQI
8th Aug 20253312 AMAQI
8th Aug 2025281 AMAQI
8th Aug 2025272 AMAQI
8th Aug 2025293 AMAQI
8th Aug 2025324 AMAQI
8th Aug 2025325 AMAQI
21°C14/32°C
8th Aug 2025316 AMAQI
8th Aug 2025327 AMAQI
8th Aug 2025338 AMAQI
8th Aug 2025349 AMAQI
8th Aug 20253810 AMAQI
8th Aug 20253711 AMAQI
8th Aug 20253612 PMAQI
8th Aug 2025321 PMAQI
8th Aug 2025312 PMAQI
8th Aug 2025353 PMAQI
8th Aug 2025354 PMAQI
8th Aug 2025325 PMAQI
8th Aug 2025326 PMAQI
8th Aug 2025307 PMAQI
8th Aug 2025318 PMAQI
8th Aug 2025309 PMAQI
8th Aug 20253210 PMAQI
8th Aug 20253311 PMAQI
9th Aug 20253312 AMAQI
9th Aug 2025311 AMAQI
9th Aug 2025322 AMAQI
9th Aug 2025313 AMAQI
9th Aug 2025314 AMAQI
9th Aug 2025325 AMAQI
22°C12/36°C
9th Aug 2025326 AMAQI
9th Aug 2025327 AMAQI
9th Aug 2025308 AMAQI
9th Aug 2025299 AMAQI
9th Aug 20252710 AMAQI
9th Aug 20252611 AMAQI
9th Aug 20252712 PMAQI
9th Aug 2025271 PMAQI
9th Aug 2025292 PMAQI
9th Aug 2025293 PMAQI
9th Aug 2025294 PMAQI
9th Aug 2025295 PMAQI
9th Aug 2025286 PMAQI
9th Aug 2025287 PMAQI
9th Aug 2025288 PMAQI
9th Aug 2025289 PMAQI
9th Aug 20253010 PMAQI
9th Aug 20253111 PMAQI
10th Aug 20253112 AMAQI
10th Aug 2025291 AMAQI
10th Aug 2025292 AMAQI
10th Aug 2025293 AMAQI
10th Aug 2025284 AMAQI
10th Aug 2025305 AMAQI
23°C14/33°C
10th Aug 2025306 AMAQI
10th Aug 2025307 AMAQI
10th Aug 2025288 AMAQI
10th Aug 2025289 AMAQI
10th Aug 20252610 AMAQI
10th Aug 20252311 AMAQI
10th Aug 20252412 PMAQI
10th Aug 2025261 PMAQI
10th Aug 2025282 PMAQI
10th Aug 2025263 PMAQI
10th Aug 2025274 PMAQI
10th Aug 2025275 PMAQI
10th Aug 2025266 PMAQI
10th Aug 2025267 PMAQI
10th Aug 2025258 PMAQI
10th Aug 2025269 PMAQI
10th Aug 20252810 PMAQI
10th Aug 20252911 PMAQI
11th Aug 20253012 AMAQI
11th Aug 2025301 AMAQI
11th Aug 2025312 AMAQI
11th Aug 2025273 AMAQI
11th Aug 2025224 AMAQI
11th Aug 2025215 AMAQI
21°C13/34°C
11th Aug 2025216 AMAQI
6 AM11th Aug 2025217 AMAQI
11th Aug 2025218 AMAQI
11th Aug 2025219 AMAQI
11th Aug 20251410 AMAQI
11th Aug 20251711 AMAQI
11th Aug 20251812 PMAQI
11th Aug 2025131 PMAQI
1 PM11th Aug 2025142 PMAQI
11th Aug 2025143 PMAQI
11th Aug 2025144 PMAQI
11th Aug 2025155 PMAQI
11th Aug 2025156 PMAQI
8 PM
1 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 8 PM
28AQI
15 hours / Day
450 hours / Month
Avg. Lowest Time
6 AM - 8 PM
28AQI
15 hours / Day
450 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 8 PM (Avg. 28), while the lowest AQI was between 6 AM to 8 PM (Avg. 28).
Night time
Avg. Highest Time
12 AM - 11 PM
30AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 9 PM
30AQI
7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 30), while the lowest AQI was between 12 AM to 9 PM (Avg. 30).
2025 Days Vs Air Quality
Concord, California, United States
2025
100%
138
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Good
138 DaysModerate
0 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2025, 100% 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
Concord, California, United States
AQI levels in 2025
AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
1st March 2025
18AQI
18AQI
2nd March 2025
18AQI
18AQI
3rd March 2025
21AQI
21AQI
4th March 2025
18AQI
18AQI
5th March 2025
19AQI
19AQI
6th March 2025
19AQI
19AQI
1st April 2025
18AQI
18AQI
2nd April 2025
19AQI
19AQI
3rd April 2025
20AQI
20AQI
4th April 2025
18AQI
18AQI
5th April 2025
17AQI
17AQI
6th April 2025
17AQI
17AQI
7th April 2025
14AQI
14AQI
8th April 2025
14AQI
14AQI
9th April 2025
20AQI
20AQI
10th April 2025
20AQI
20AQI
11th April 2025
18AQI
18AQI
12th April 2025
29AQI
29AQI
13th April 2025
31AQI
31AQI
14th April 2025
24AQI
24AQI
15th April 2025
28AQI
28AQI
16th April 2025
27AQI
27AQI
17th April 2025
23AQI
23AQI
18th April 2025
22AQI
22AQI
19th April 2025
30AQI
30AQI
20th April 2025
26AQI
26AQI
21st April 2025
21AQI
21AQI
22nd April 2025
37AQI
37AQI
23rd April 2025
45AQI
45AQI
24th April 2025
33AQI
33AQI
25th April 2025
19AQI
19AQI
26th April 2025
14AQI
14AQI
27th April 2025
17AQI
17AQI
28th April 2025
22AQI
22AQI
29th April 2025
25AQI
25AQI
30th April 2025
30AQI
30AQI
1st May 2025
38AQI
38AQI
2nd May 2025
29AQI
29AQI
3rd May 2025
22AQI
22AQI
4th May 2025
28AQI
28AQI
5th May 2025
23AQI
23AQI
6th May 2025
34AQI
34AQI
7th May 2025
44AQI
44AQI
8th May 2025
30AQI
30AQI
9th May 2025
23AQI
23AQI
10th May 2025
19AQI
19AQI
11th May 2025
20AQI
20AQI
12th May 2025
19AQI
19AQI
13th May 2025
16AQI
16AQI
14th May 2025
28AQI
28AQI
15th May 2025
30AQI
30AQI
16th May 2025
38AQI
38AQI
17th May 2025
24AQI
24AQI
18th May 2025
20AQI
20AQI
19th May 2025
22AQI
22AQI
20th May 2025
17AQI
17AQI
21st May 2025
31AQI
31AQI
22nd May 2025
31AQI
31AQI
23rd May 2025
20AQI
20AQI
24th May 2025
26AQI
26AQI
25th May 2025
18AQI
18AQI
26th May 2025
15AQI
15AQI
27th May 2025
19AQI
19AQI
28th May 2025
21AQI
21AQI
29th May 2025
16AQI
16AQI
30th May 2025
24AQI
24AQI
31st May 2025
35AQI
35AQI
1st June 2025
48AQI
48AQI
2nd June 2025
48AQI
48AQI
3rd June 2025
30AQI
30AQI
4th June 2025
47AQI
47AQI
5th June 2025
30AQI
30AQI
6th June 2025
20AQI
20AQI
7th June 2025
21AQI
21AQI
8th June 2025
18AQI
18AQI
9th June 2025
16AQI
16AQI
10th June 2025
19AQI
19AQI
11th June 2025
38AQI
38AQI
12th June 2025
43AQI
43AQI
13th June 2025
43AQI
43AQI
14th June 2025
38AQI
38AQI
15th June 2025
38AQI
38AQI
16th June 2025
37AQI
37AQI
17th June 2025
28AQI
28AQI
18th June 2025
25AQI
25AQI
19th June 2025
39AQI
39AQI
20th June 2025
36AQI
36AQI
21st June 2025
33AQI
33AQI
22nd June 2025
31AQI
31AQI
23rd June 2025
27AQI
27AQI
24th June 2025
22AQI
22AQI
25th June 2025
20AQI
20AQI
26th June 2025
25AQI
25AQI
27th June 2025
30AQI
30AQI
28th June 2025
32AQI
32AQI
29th June 2025
25AQI
25AQI
30th June 2025
23AQI
23AQI
1st July 2025
28AQI
28AQI
2nd July 2025
27AQI
27AQI
3rd July 2025
38AQI
38AQI
4th July 2025
31AQI
31AQI
5th July 2025
32AQI
32AQI
6th July 2025
32AQI
32AQI
7th July 2025
22AQI
22AQI
8th July 2025
19AQI
19AQI
9th July 2025
18AQI
18AQI
10th July 2025
25AQI
25AQI
11th July 2025
41AQI
41AQI
12th July 2025
41AQI
41AQI
13th July 2025
28AQI
28AQI
14th July 2025
19AQI
19AQI
15th July 2025
18AQI
18AQI
16th July 2025
22AQI
22AQI
17th July 2025
17AQI
17AQI
18th July 2025
17AQI
17AQI
19th July 2025
21AQI
21AQI
20th July 2025
22AQI
22AQI
21st July 2025
23AQI
23AQI
22nd July 2025
14AQI
14AQI
23rd July 2025
14AQI
14AQI
24th July 2025
15AQI
15AQI
25th July 2025
16AQI
16AQI
26th July 2025
15AQI
15AQI
27th July 2025
15AQI
15AQI
28th July 2025
21AQI
21AQI
29th July 2025
24AQI
24AQI
30th July 2025
24AQI
24AQI
31st July 2025
23AQI
23AQI
1st August 2025
24AQI
24AQI
2nd August 2025
20AQI
20AQI
3rd August 2025
33AQI
33AQI
4th August 2025
35AQI
35AQI
5th August 2025
30AQI
30AQI
6th August 2025
32AQI
32AQI
7th August 2025
22AQI
22AQI
8th August 2025
30AQI
30AQI
9th August 2025
33AQI
33AQI
10th August 2025
28AQI
28AQI
19AQI
23AQI
25AQI
31AQI
23AQI
29AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202526AQI
6
30
31
30
31
10
138
Highest AQI recorded in
June31AQI
Lowest AQI recorded in
March19AQI
Most & Least Polluted Years Over the Last 1 Years
Most Polluted Year Recorded
2025(Avg.)
26AQILeast Polluted Year Recorded
2025(Avg.)
26AQIConcord's annual 2025 AQI (26) shows an average percentage change of NaN% (improved AQI) compared to previous years: .
