San Jose Knox Avenue, San Jose, 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
San Jose Knox Avenue, San Jose, California, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
28th Aug 2021
129AQILowest AQI recorded on
17th Aug 2024
9AQISame Day Analysis (10th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 42 of Good air quality, showing improvement over 2024 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 10th Aug - 11th Aug 2025
San Jose Knox Avenue, San Jose, California, United States
AQI
Day
Night
.
6 AM10th Aug 2025
8 PM
5 AM11th Aug 2025
Day time
Avg. Highest Time
1PM10th Aug
52AQI
Avg. Lowest Time
8AM10th Aug
34AQI
Night time
Avg. Highest Time
9PM10th Aug
43AQI
Avg. Lowest Time
5AM11th Aug
27AQI
In the last 24 hours,
San Jose Knox Avenue's AQI reached its highest point of 52 at 1 PM during the Day, while the lowest point, 27, was recorded at 5 AM during the Night between 10th Aug and 11th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
San Jose Knox Avenue, San Jose, 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 2025506 AMAQI
12th Jul 2025487 AMAQI
12th Jul 2025388 AMAQI
12th Jul 2025329 AMAQI
12th Jul 20254210 AMAQI
12th Jul 20253711 AMAQI
12th Jul 20253712 PMAQI
12th Jul 2025371 PMAQI
12th Jul 2025402 PMAQI
12th Jul 2025443 PMAQI
12th Jul 2025434 PMAQI
12th Jul 2025425 PMAQI
12th Jul 2025406 PMAQI
12th Jul 2025427 PMAQI
12th Jul 2025438 PMAQI
12th Jul 2025469 PMAQI
12th Jul 20254510 PMAQI
12th Jul 20254511 PMAQI
13th Jul 20254712 AMAQI
13th Jul 2025481 AMAQI
13th Jul 2025472 AMAQI
13th Jul 2025463 AMAQI
13th Jul 2025444 AMAQI
13th Jul 2025385 AMAQI
24°C17/33°C
13th Jul 2025406 AMAQI
13th Jul 2025367 AMAQI
13th Jul 2025408 AMAQI
13th Jul 2025389 AMAQI
13th Jul 20253610 AMAQI
13th Jul 20254011 AMAQI
13th Jul 20254212 PMAQI
13th Jul 2025461 PMAQI
13th Jul 2025522 PMAQI
13th Jul 2025523 PMAQI
13th Jul 2025514 PMAQI
13th Jul 2025495 PMAQI
13th Jul 2025466 PMAQI
13th Jul 2025437 PMAQI
13th Jul 2025418 PMAQI
13th Jul 2025389 PMAQI
13th Jul 20253910 PMAQI
13th Jul 20253611 PMAQI
14th Jul 20253812 AMAQI
14th Jul 2025381 AMAQI
14th Jul 2025342 AMAQI
14th Jul 2025353 AMAQI
14th Jul 2025264 AMAQI
14th Jul 2025285 AMAQI
23°C16/34°C
14th Jul 2025206 AMAQI
14th Jul 2025307 AMAQI
14th Jul 2025328 AMAQI
14th Jul 2025389 AMAQI
14th Jul 20253310 AMAQI
14th Jul 20253811 AMAQI
14th Jul 20253412 PMAQI
14th Jul 2025301 PMAQI
14th Jul 2025282 PMAQI
14th Jul 2025323 PMAQI
14th Jul 2025374 PMAQI
14th Jul 2025395 PMAQI
14th Jul 2025366 PMAQI
14th Jul 2025357 PMAQI
14th Jul 2025328 PMAQI
14th Jul 2025309 PMAQI
14th Jul 20252410 PMAQI
14th Jul 20252211 PMAQI
15th Jul 20252112 AMAQI
15th Jul 2025251 AMAQI
15th Jul 2025272 AMAQI
15th Jul 2025283 AMAQI
15th Jul 2025164 AMAQI
15th Jul 2025175 AMAQI
24°C16/34°C
15th Jul 2025226 AMAQI
15th Jul 2025207 AMAQI
15th Jul 2025188 AMAQI
15th Jul 2025189 AMAQI
15th Jul 20252110 AMAQI
15th Jul 20252211 AMAQI
15th Jul 20251912 PMAQI
15th Jul 2025191 PMAQI
15th Jul 2025212 PMAQI
15th Jul 2025233 PMAQI
15th Jul 2025234 PMAQI
15th Jul 2025215 PMAQI
15th Jul 2025206 PMAQI
15th Jul 2025227 PMAQI
15th Jul 2025248 PMAQI
15th Jul 2025249 PMAQI
15th Jul 20252410 PMAQI
15th Jul 20252511 PMAQI
16th Jul 20252412 AMAQI
16th Jul 2025281 AMAQI
16th Jul 2025302 AMAQI
16th Jul 2025253 AMAQI
16th Jul 2025204 AMAQI
16th Jul 2025205 AMAQI
21°C15/29°C
16th Jul 2025186 AMAQI
16th Jul 2025237 AMAQI
16th Jul 2025248 AMAQI
16th Jul 2025219 AMAQI
16th Jul 20252010 AMAQI
16th Jul 20252411 AMAQI
16th Jul 20252212 PMAQI
16th Jul 2025201 PMAQI
16th Jul 2025202 PMAQI
16th Jul 2025193 PMAQI
16th Jul 2025214 PMAQI
16th Jul 2025225 PMAQI
16th Jul 2025246 PMAQI
16th Jul 2025237 PMAQI
16th Jul 2025248 PMAQI
16th Jul 2025239 PMAQI
16th Jul 20252210 PMAQI
16th Jul 20252211 PMAQI
17th Jul 20252412 AMAQI
17th Jul 2025241 AMAQI
17th Jul 2025232 AMAQI
17th Jul 2025223 AMAQI
17th Jul 2025184 AMAQI
17th Jul 2025175 AMAQI
20°C14/27°C
17th Jul 2025196 AMAQI
17th Jul 2025187 AMAQI
17th Jul 2025218 AMAQI
17th Jul 2025429 AMAQI
17th Jul 20253110 AMAQI
17th Jul 20253011 AMAQI
17th Jul 20252712 PMAQI
17th Jul 2025291 PMAQI
17th Jul 2025302 PMAQI
17th Jul 2025293 PMAQI
17th Jul 2025304 PMAQI
17th Jul 2025315 PMAQI
17th Jul 2025306 PMAQI
17th Jul 2025247 PMAQI
17th Jul 2025238 PMAQI
17th Jul 2025209 PMAQI
17th Jul 20252110 PMAQI
17th Jul 20252211 PMAQI
18th Jul 20252212 AMAQI
18th Jul 2025201 AMAQI
18th Jul 2025222 AMAQI
18th Jul 2025203 AMAQI
18th Jul 2025144 AMAQI
18th Jul 2025145 AMAQI
21°C15/31°C
18th Jul 2025206 AMAQI
18th Jul 2025207 AMAQI
18th Jul 2025198 AMAQI
18th Jul 2025199 AMAQI
18th Jul 20251810 AMAQI
18th Jul 20252611 AMAQI
18th Jul 20252412 PMAQI
18th Jul 2025251 PMAQI
18th Jul 2025242 PMAQI
18th Jul 2025243 PMAQI
18th Jul 2025274 PMAQI
18th Jul 2025275 PMAQI
18th Jul 2025266 PMAQI
18th Jul 2025227 PMAQI
18th Jul 2025228 PMAQI
18th Jul 2025219 PMAQI
18th Jul 20251910 PMAQI
18th Jul 20251911 PMAQI
19th Jul 20252012 AMAQI
19th Jul 2025221 AMAQI
19th Jul 2025242 AMAQI
19th Jul 2025273 AMAQI
19th Jul 2025274 AMAQI
19th Jul 2025305 AMAQI
21°C15/30°C
19th Jul 2025326 AMAQI
19th Jul 2025307 AMAQI
19th Jul 2025288 AMAQI
19th Jul 2025339 AMAQI
19th Jul 20253110 AMAQI
19th Jul 20252711 AMAQI
19th Jul 20252912 PMAQI
19th Jul 2025311 PMAQI
19th Jul 2025312 PMAQI
19th Jul 2025303 PMAQI
19th Jul 2025304 PMAQI
19th Jul 2025285 PMAQI
19th Jul 2025276 PMAQI
19th Jul 2025287 PMAQI
19th Jul 2025278 PMAQI
19th Jul 2025249 PMAQI
19th Jul 20252310 PMAQI
19th Jul 20252611 PMAQI
20th Jul 20252612 AMAQI
20th Jul 2025251 AMAQI
20th Jul 2025272 AMAQI
20th Jul 2025283 AMAQI
20th Jul 2025304 AMAQI
20th Jul 2025315 AMAQI
20°C14/29°C
20th Jul 2025346 AMAQI
20th Jul 2025317 AMAQI
20th Jul 2025268 AMAQI
20th Jul 2025239 AMAQI
20th Jul 20252210 AMAQI
20th Jul 20252011 AMAQI
20th Jul 20252312 PMAQI
20th Jul 2025241 PMAQI
20th Jul 2025212 PMAQI
20th Jul 2025233 PMAQI
20th Jul 2025244 PMAQI
20th Jul 2025245 PMAQI
20th Jul 2025256 PMAQI
20th Jul 2025257 PMAQI
20th Jul 2025248 PMAQI
20th Jul 2025259 PMAQI
20th Jul 20252510 PMAQI
20th Jul 20252811 PMAQI
21st Jul 20252712 AMAQI
21st Jul 2025271 AMAQI
21st Jul 2025282 AMAQI
21st Jul 2025323 AMAQI
21st Jul 2025324 AMAQI
21st Jul 2025265 AMAQI
20°C14/28°C
21st Jul 2025266 AMAQI
21st Jul 2025297 AMAQI
21st Jul 2025288 AMAQI
21st Jul 2025289 AMAQI
21st Jul 20253010 AMAQI
21st Jul 20252611 AMAQI
21st Jul 20252312 PMAQI
21st Jul 2025221 PMAQI
21st Jul 2025242 PMAQI
21st Jul 2025263 PMAQI
21st Jul 2025264 PMAQI
21st Jul 2025245 PMAQI
21st Jul 2025226 PMAQI
21st Jul 2025257 PMAQI
21st Jul 2025258 PMAQI
21st Jul 2025219 PMAQI
21st Jul 20252310 PMAQI
21st Jul 20252311 PMAQI
22nd Jul 20252112 AMAQI
22nd Jul 2025221 AMAQI
22nd Jul 2025222 AMAQI
22nd Jul 2025203 AMAQI
22nd Jul 2025174 AMAQI
22nd Jul 2025125 AMAQI
17°C14/22°C
22nd Jul 2025136 AMAQI
22nd Jul 2025167 AMAQI
22nd Jul 2025148 AMAQI
22nd Jul 2025169 AMAQI
22nd Jul 20251610 AMAQI
22nd Jul 20251611 AMAQI
22nd Jul 20251512 PMAQI
22nd Jul 2025131 PMAQI
22nd Jul 2025132 PMAQI
22nd Jul 2025173 PMAQI
22nd Jul 2025174 PMAQI
22nd Jul 2025175 PMAQI
22nd Jul 2025166 PMAQI
22nd Jul 2025177 PMAQI
22nd Jul 2025178 PMAQI
22nd Jul 2025189 PMAQI
22nd Jul 20251610 PMAQI
22nd Jul 20251611 PMAQI
23rd Jul 20251712 AMAQI
23rd Jul 2025181 AMAQI
23rd Jul 2025172 AMAQI
23rd Jul 2025173 AMAQI
23rd Jul 2025164 AMAQI
23rd Jul 2025285 AMAQI
17°C14/22°C
23rd Jul 2025296 AMAQI
23rd Jul 2025247 AMAQI
23rd Jul 2025208 AMAQI
23rd Jul 2025209 AMAQI
23rd Jul 20251810 AMAQI
23rd Jul 20251811 AMAQI
23rd Jul 20251912 PMAQI
23rd Jul 2025181 PMAQI
23rd Jul 2025182 PMAQI
23rd Jul 2025203 PMAQI
23rd Jul 2025204 PMAQI
23rd Jul 2025205 PMAQI
23rd Jul 2025216 PMAQI
23rd Jul 2025217 PMAQI
23rd Jul 2025228 PMAQI
23rd Jul 2025249 PMAQI
23rd Jul 20252410 PMAQI
23rd Jul 20252211 PMAQI
24th Jul 20252012 AMAQI
24th Jul 2025191 AMAQI
24th Jul 2025182 AMAQI
24th Jul 2025173 AMAQI
24th Jul 2025134 AMAQI
24th Jul 2025135 AMAQI
19°C15/26°C
24th Jul 2025126 AMAQI
24th Jul 2025147 AMAQI
24th Jul 2025168 AMAQI
24th Jul 2025159 AMAQI
24th Jul 20252010 AMAQI
24th Jul 20252311 AMAQI
24th Jul 20252012 PMAQI
24th Jul 2025201 PMAQI
24th Jul 2025202 PMAQI
24th Jul 2025183 PMAQI
24th Jul 2025204 PMAQI
24th Jul 2025215 PMAQI
24th Jul 2025256 PMAQI
24th Jul 2025227 PMAQI
24th Jul 2025208 PMAQI
24th Jul 2025219 PMAQI
24th Jul 20252110 PMAQI
24th Jul 20252211 PMAQI
25th Jul 20252212 AMAQI
25th Jul 2025201 AMAQI
25th Jul 2025202 AMAQI
25th Jul 2025213 AMAQI
25th Jul 2025184 AMAQI
25th Jul 2025195 AMAQI
19°C15/26°C
25th Jul 2025166 AMAQI
25th Jul 2025217 AMAQI
25th Jul 2025228 AMAQI
25th Jul 2025179 AMAQI
25th Jul 20251410 AMAQI
25th Jul 20251511 AMAQI
25th Jul 20251512 PMAQI
25th Jul 2025141 PMAQI
25th Jul 2025152 PMAQI
25th Jul 2025163 PMAQI
25th Jul 2025204 PMAQI
25th Jul 2025225 PMAQI
25th Jul 2025226 PMAQI
25th Jul 2025207 PMAQI
25th Jul 2025208 PMAQI
25th Jul 2025179 PMAQI
25th Jul 20251810 PMAQI
25th Jul 20251811 PMAQI
26th Jul 20251812 AMAQI
26th Jul 2025171 AMAQI
26th Jul 2025182 AMAQI
26th Jul 2025193 AMAQI
26th Jul 2025184 AMAQI
26th Jul 2025185 AMAQI
18°C14/25°C
26th Jul 2025186 AMAQI
26th Jul 2025167 AMAQI
26th Jul 2025188 AMAQI
26th Jul 2025199 AMAQI
26th Jul 20251410 AMAQI
26th Jul 20252511 AMAQI
26th Jul 20252812 PMAQI
26th Jul 2025241 PMAQI
26th Jul 2025252 PMAQI
26th Jul 2025233 PMAQI
26th Jul 2025204 PMAQI
26th Jul 2025185 PMAQI
26th Jul 2025196 PMAQI
26th Jul 2025217 PMAQI
26th Jul 2025188 PMAQI
26th Jul 2025189 PMAQI
26th Jul 20252010 PMAQI
26th Jul 20252211 PMAQI
27th Jul 20252112 AMAQI
27th Jul 2025181 AMAQI
27th Jul 2025172 AMAQI
27th Jul 2025183 AMAQI
27th Jul 2025184 AMAQI
27th Jul 2025175 AMAQI
19°C14/26°C
27th Jul 2025186 AMAQI
27th Jul 2025197 AMAQI
27th Jul 2025168 AMAQI
27th Jul 2025169 AMAQI
27th Jul 20251610 AMAQI
27th Jul 20251511 AMAQI
27th Jul 20251612 PMAQI
27th Jul 2025161 PMAQI
27th Jul 2025142 PMAQI
27th Jul 2025163 PMAQI
27th Jul 2025154 PMAQI
27th Jul 2025155 PMAQI
27th Jul 2025166 PMAQI
27th Jul 2025177 PMAQI
27th Jul 2025188 PMAQI
27th Jul 2025189 PMAQI
27th Jul 20251910 PMAQI
27th Jul 20252011 PMAQI
28th Jul 20252312 AMAQI
28th Jul 2025221 AMAQI
28th Jul 2025252 AMAQI
28th Jul 2025263 AMAQI
28th Jul 2025204 AMAQI
28th Jul 2025175 AMAQI
18°C14/26°C
28th Jul 2025216 AMAQI
28th Jul 2025247 AMAQI
28th Jul 2025308 AMAQI
28th Jul 2025249 AMAQI
28th Jul 20253710 AMAQI
28th Jul 20252211 AMAQI
28th Jul 20252012 PMAQI
28th Jul 2025271 PMAQI
28th Jul 2025282 PMAQI
28th Jul 2025283 PMAQI
28th Jul 2025254 PMAQI
28th Jul 2025235 PMAQI
28th Jul 2025276 PMAQI
28th Jul 2025267 PMAQI
28th Jul 2025278 PMAQI
28th Jul 2025319 PMAQI
28th Jul 20253010 PMAQI
28th Jul 20253011 PMAQI
29th Jul 20253212 AMAQI
29th Jul 2025321 AMAQI
29th Jul 2025302 AMAQI
29th Jul 2025313 AMAQI
29th Jul 2025284 AMAQI
29th Jul 2025285 AMAQI
21°C14/30°C
29th Jul 2025306 AMAQI
29th Jul 2025307 AMAQI
29th Jul 2025288 AMAQI
29th Jul 2025269 AMAQI
29th Jul 20252410 AMAQI
29th Jul 20253211 AMAQI
29th Jul 20253212 PMAQI
29th Jul 2025301 PMAQI
29th Jul 2025302 PMAQI
29th Jul 2025363 PMAQI
29th Jul 2025344 PMAQI
29th Jul 2025335 PMAQI
29th Jul 2025356 PMAQI
29th Jul 2025347 PMAQI
29th Jul 2025328 PMAQI
29th Jul 2025349 PMAQI
29th Jul 20253410 PMAQI
29th Jul 20253411 PMAQI
30th Jul 20253412 AMAQI
30th Jul 2025341 AMAQI
30th Jul 2025322 AMAQI
30th Jul 2025313 AMAQI
30th Jul 2025304 AMAQI
30th Jul 2025295 AMAQI
22°C16/31°C
30th Jul 2025286 AMAQI
30th Jul 2025307 AMAQI
30th Jul 2025328 AMAQI
30th Jul 2025349 AMAQI
30th Jul 20253010 AMAQI
30th Jul 20252611 AMAQI
30th Jul 20253712 PMAQI
30th Jul 2025381 PMAQI
30th Jul 2025382 PMAQI
30th Jul 2025383 PMAQI
30th Jul 2025384 PMAQI
30th Jul 2025385 PMAQI
30th Jul 2025386 PMAQI
30th Jul 2025387 PMAQI
30th Jul 2025388 PMAQI
30th Jul 2025379 PMAQI
30th Jul 20253310 PMAQI
30th Jul 20253211 PMAQI
31st Jul 20253012 AMAQI
31st Jul 2025291 AMAQI
31st Jul 2025282 AMAQI
31st Jul 2025273 AMAQI
31st Jul 2025214 AMAQI
31st Jul 2025225 AMAQI
20°C15/29°C
31st Jul 2025206 AMAQI
31st Jul 2025267 AMAQI
31st Jul 2025298 AMAQI
31st Jul 2025319 AMAQI
31st Jul 20253810 AMAQI
31st Jul 20253411 AMAQI
31st Jul 20252912 PMAQI
31st Jul 2025261 PMAQI
31st Jul 2025282 PMAQI
31st Jul 2025283 PMAQI
31st Jul 2025284 PMAQI
31st Jul 2025305 PMAQI
31st Jul 2025386 PMAQI
31st Jul 2025297 PMAQI
31st Jul 2025308 PMAQI
31st Jul 2025319 PMAQI
31st Jul 20252910 PMAQI
31st Jul 20252811 PMAQI
1st Aug 20252912 AMAQI
1st Aug 2025271 AMAQI
1st Aug 2025242 AMAQI
1st Aug 2025243 AMAQI
1st Aug 2025244 AMAQI
1st Aug 2025355 AMAQI
21°C16/31°C
1st Aug 2025366 AMAQI
1st Aug 2025387 AMAQI
1st Aug 2025358 AMAQI
1st Aug 2025349 AMAQI
1st Aug 20253110 AMAQI
1st Aug 20252911 AMAQI
1st Aug 20253212 PMAQI
1st Aug 2025341 PMAQI
1st Aug 2025342 PMAQI
1st Aug 2025393 PMAQI
1st Aug 2025374 PMAQI
1st Aug 2025375 PMAQI
1st Aug 2025426 PMAQI
1st Aug 2025367 PMAQI
1st Aug 2025368 PMAQI
1st Aug 2025329 PMAQI
1st Aug 20253510 PMAQI
1st Aug 20253811 PMAQI
2nd Aug 20253812 AMAQI
2nd Aug 2025351 AMAQI
2nd Aug 2025392 AMAQI
2nd Aug 2025373 AMAQI
2nd Aug 2025384 AMAQI
2nd Aug 2025385 AMAQI
21°C15/30°C
2nd Aug 2025396 AMAQI
2nd Aug 2025407 AMAQI
2nd Aug 2025378 AMAQI
2nd Aug 2025339 AMAQI
2nd Aug 20253110 AMAQI
2nd Aug 20253711 AMAQI
2nd Aug 20253812 PMAQI
2nd Aug 2025421 PMAQI
2nd Aug 2025372 PMAQI
2nd Aug 2025443 PMAQI
2nd Aug 2025404 PMAQI
2nd Aug 2025355 PMAQI
2nd Aug 2025306 PMAQI
2nd Aug 2025367 PMAQI
2nd Aug 2025328 PMAQI
2nd Aug 2025229 PMAQI
2nd Aug 20252210 PMAQI
2nd Aug 20252311 PMAQI
3rd Aug 20252112 AMAQI
3rd Aug 2025231 AMAQI
3rd Aug 2025262 AMAQI
3rd Aug 2025343 AMAQI
3rd Aug 2025354 AMAQI
3rd Aug 2025325 AMAQI
20°C14/29°C
3rd Aug 2025346 AMAQI
3rd Aug 2025347 AMAQI
3rd Aug 2025248 AMAQI
3rd Aug 2025289 AMAQI
3rd Aug 20253010 AMAQI
3rd Aug 20253611 AMAQI
3rd Aug 20253212 PMAQI
3rd Aug 2025321 PMAQI
3rd Aug 2025322 PMAQI
3rd Aug 2025303 PMAQI
3rd Aug 2025304 PMAQI
3rd Aug 2025325 PMAQI
3rd Aug 2025346 PMAQI
3rd Aug 2025307 PMAQI
3rd Aug 2025368 PMAQI
3rd Aug 2025449 PMAQI
3rd Aug 20253810 PMAQI
3rd Aug 20254111 PMAQI
4th Aug 20254312 AMAQI
4th Aug 2025421 AMAQI
4th Aug 2025392 AMAQI
4th Aug 2025353 AMAQI
4th Aug 2025384 AMAQI
4th Aug 2025405 AMAQI
19°C14/27°C
4th Aug 2025486 AMAQI
4th Aug 2025447 AMAQI
4th Aug 2025418 AMAQI
4th Aug 2025439 AMAQI
4th Aug 20254810 AMAQI
4th Aug 20255211 AMAQI
4th Aug 20254812 PMAQI
4th Aug 2025481 PMAQI
4th Aug 2025472 PMAQI
4th Aug 2025563 PMAQI
4th Aug 2025514 PMAQI
4th Aug 2025445 PMAQI
4th Aug 2025366 PMAQI
4th Aug 2025457 PMAQI
4th Aug 2025368 PMAQI
4th Aug 2025309 PMAQI
4th Aug 20252910 PMAQI
4th Aug 20252411 PMAQI
5th Aug 20252612 AMAQI
5th Aug 2025261 AMAQI
5th Aug 2025272 AMAQI
5th Aug 2025263 AMAQI
5th Aug 2025284 AMAQI
5th Aug 2025345 AMAQI
19°C13/27°C
5th Aug 2025346 AMAQI
5th Aug 2025317 AMAQI
5th Aug 2025308 AMAQI
5th Aug 2025329 AMAQI
5th Aug 20253910 AMAQI
5th Aug 20253711 AMAQI
5th Aug 20253612 PMAQI
5th Aug 2025371 PMAQI
5th Aug 2025372 PMAQI
5th Aug 2025333 PMAQI
5th Aug 2025244 PMAQI
5th Aug 2025325 PMAQI
5th Aug 2025366 PMAQI
5th Aug 2025317 PMAQI
5th Aug 2025348 PMAQI
5th Aug 2025349 PMAQI
5th Aug 20253510 PMAQI
5th Aug 20253311 PMAQI
6th Aug 20253412 AMAQI
6th Aug 2025341 AMAQI
6th Aug 2025372 AMAQI
6th Aug 2025423 AMAQI
6th Aug 2025394 AMAQI
6th Aug 2025385 AMAQI
20°C13/28°C
6th Aug 2025396 AMAQI
6th Aug 2025397 AMAQI
6th Aug 2025428 AMAQI
6th Aug 2025419 AMAQI
6th Aug 20254410 AMAQI
6th Aug 20255011 AMAQI
6th Aug 20255212 PMAQI
6th Aug 2025521 PMAQI
6th Aug 2025542 PMAQI
6th Aug 2025523 PMAQI
6th Aug 2025504 PMAQI
6th Aug 2025445 PMAQI
6th Aug 2025366 PMAQI
6th Aug 2025407 PMAQI
6th Aug 2025438 PMAQI
6th Aug 2025429 PMAQI
6th Aug 20253810 PMAQI
6th Aug 20253211 PMAQI
7th Aug 20253512 AMAQI
7th Aug 2025361 AMAQI
7th Aug 2025342 AMAQI
7th Aug 2025333 AMAQI
7th Aug 2025284 AMAQI
7th Aug 2025305 AMAQI
22°C15/32°C
7th Aug 2025306 AMAQI
7th Aug 2025377 AMAQI
7th Aug 2025338 AMAQI
7th Aug 2025429 AMAQI
7th Aug 20254110 AMAQI
7th Aug 20254111 AMAQI
7th Aug 20253812 PMAQI
7th Aug 2025401 PMAQI
7th Aug 2025402 PMAQI
7th Aug 2025383 PMAQI
7th Aug 2025344 PMAQI
7th Aug 2025325 PMAQI
7th Aug 2025316 PMAQI
7th Aug 2025327 PMAQI
7th Aug 2025328 PMAQI
7th Aug 2025289 PMAQI
7th Aug 20252810 PMAQI
7th Aug 20252911 PMAQI
8th Aug 20252812 AMAQI
8th Aug 2025281 AMAQI
8th Aug 2025282 AMAQI
8th Aug 2025303 AMAQI
8th Aug 2025324 AMAQI
8th Aug 2025245 AMAQI
23°C16/33°C
8th Aug 2025206 AMAQI
8th Aug 2025217 AMAQI
8th Aug 2025228 AMAQI
8th Aug 2025269 AMAQI
8th Aug 20252510 AMAQI
8th Aug 20252211 AMAQI
8th Aug 20253112 PMAQI
8th Aug 2025311 PMAQI
8th Aug 2025282 PMAQI
8th Aug 2025333 PMAQI
8th Aug 2025354 PMAQI
8th Aug 2025325 PMAQI
8th Aug 2025326 PMAQI
8th Aug 2025287 PMAQI
8th Aug 2025308 PMAQI
8th Aug 2025379 PMAQI
8th Aug 20253710 PMAQI
8th Aug 20253511 PMAQI
9th Aug 20253612 AMAQI
9th Aug 2025381 AMAQI
9th Aug 2025432 AMAQI
9th Aug 2025443 AMAQI
9th Aug 2025444 AMAQI
9th Aug 2025505 AMAQI
25°C17/36°C
9th Aug 2025516 AMAQI
9th Aug 2025467 AMAQI
9th Aug 2025468 AMAQI
9th Aug 2025459 AMAQI
9th Aug 20254910 AMAQI
9th Aug 20254911 AMAQI
9th Aug 20255312 PMAQI
9th Aug 2025531 PMAQI
9th Aug 2025572 PMAQI
9th Aug 2025543 PMAQI
9th Aug 2025534 PMAQI
9th Aug 2025525 PMAQI
9th Aug 2025496 PMAQI
9th Aug 2025507 PMAQI
9th Aug 2025498 PMAQI
9th Aug 2025449 PMAQI
9th Aug 20254410 PMAQI
9th Aug 20254311 PMAQI
10th Aug 20254412 AMAQI
10th Aug 2025441 AMAQI
10th Aug 2025442 AMAQI
10th Aug 2025403 AMAQI
10th Aug 2025404 AMAQI
10th Aug 2025365 AMAQI
26°C19/36°C
10th Aug 2025406 AMAQI
10th Aug 2025417 AMAQI
10th Aug 2025348 AMAQI
10th Aug 2025359 AMAQI
10th Aug 20253610 AMAQI
10th Aug 20253611 AMAQI
10th Aug 20254812 PMAQI
10th Aug 2025521 PMAQI
10th Aug 2025482 PMAQI
10th Aug 2025463 PMAQI
10th Aug 2025484 PMAQI
10th Aug 2025445 PMAQI
10th Aug 2025446 PMAQI
10th Aug 2025427 PMAQI
10th Aug 2025428 PMAQI
10th Aug 2025439 PMAQI
10th Aug 20253910 PMAQI
10th Aug 20253811 PMAQI
11th Aug 20253612 AMAQI
11th Aug 2025311 AMAQI
11th Aug 2025312 AMAQI
11th Aug 2025283 AMAQI
11th Aug 2025284 AMAQI
11th Aug 2025275 AMAQI
27°C19/37°C
11th Aug 2025226 AMAQI
6 AM11th Aug 2025217 AMAQI
11th Aug 2025228 AMAQI
1 PM
8 PM
1 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 8 PM
30AQI
15 hours / Day
450 hours / Month
Avg. Lowest Time
6 AM - 8 PM
30AQI
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. 30), while the lowest AQI was between 6 AM to 8 PM (Avg. 30).
Night time
Avg. Highest Time
12 AM - 3 AM
29AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
4 AM - 11 PM
28AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 3 AM (Avg. 29), while the lowest AQI was between 4 AM to 11 PM (Avg. 28).
2025 Days Vs Air Quality
San Jose Knox Avenue, San Jose, California, United States
2025
90%
199
10%
23
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Good
199 DaysModerate
23 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2025, 90% 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
San Jose Knox Avenue, San Jose, 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 January 2025
75AQI
75AQI
2nd January 2025
58AQI
58AQI
3rd January 2025
51AQI
51AQI
4th January 2025
42AQI
42AQI
5th January 2025
51AQI
51AQI
6th January 2025
49AQI
49AQI
7th January 2025
31AQI
31AQI
8th January 2025
36AQI
36AQI
9th January 2025
43AQI
43AQI
10th January 2025
47AQI
47AQI
11th January 2025
38AQI
38AQI
12th January 2025
31AQI
31AQI
13th January 2025
43AQI
43AQI
14th January 2025
44AQI
44AQI
15th January 2025
55AQI
55AQI
16th January 2025
60AQI
60AQI
17th January 2025
58AQI
58AQI
18th January 2025
57AQI
57AQI
19th January 2025
65AQI
65AQI
20th January 2025
50AQI
50AQI
21st January 2025
50AQI
50AQI
22nd January 2025
54AQI
54AQI
23rd January 2025
59AQI
59AQI
24th January 2025
66AQI
66AQI
25th January 2025
55AQI
55AQI
26th January 2025
46AQI
46AQI
27th January 2025
42AQI
42AQI
28th January 2025
48AQI
48AQI
29th January 2025
47AQI
47AQI
30th January 2025
52AQI
52AQI
31st January 2025
50AQI
50AQI
1st February 2025
53AQI
53AQI
2nd February 2025
33AQI
33AQI
3rd February 2025
27AQI
27AQI
4th February 2025
22AQI
22AQI
5th February 2025
25AQI
25AQI
6th February 2025
28AQI
28AQI
7th February 2025
22AQI
22AQI
8th February 2025
26AQI
26AQI
9th February 2025
28AQI
28AQI
10th February 2025
31AQI
31AQI
11th February 2025
31AQI
31AQI
12th February 2025
25AQI
25AQI
13th February 2025
23AQI
23AQI
14th February 2025
24AQI
24AQI
15th February 2025
32AQI
32AQI
16th February 2025
40AQI
40AQI
17th February 2025
26AQI
26AQI
18th February 2025
32AQI
32AQI
19th February 2025
33AQI
33AQI
20th February 2025
30AQI
30AQI
21st February 2025
36AQI
36AQI
22nd February 2025
46AQI
46AQI
23rd February 2025
39AQI
39AQI
24th February 2025
38AQI
38AQI
25th February 2025
35AQI
35AQI
26th February 2025
38AQI
38AQI
27th February 2025
46AQI
46AQI
28th February 2025
51AQI
51AQI
1st March 2025
40AQI
40AQI
2nd March 2025
24AQI
24AQI
3rd March 2025
25AQI
25AQI
4th March 2025
26AQI
26AQI
5th March 2025
30AQI
30AQI
6th March 2025
22AQI
22AQI
7th March 2025
37AQI
37AQI
8th March 2025
33AQI
33AQI
9th March 2025
38AQI
38AQI
10th March 2025
33AQI
33AQI
11th March 2025
26AQI
26AQI
12th March 2025
25AQI
25AQI
13th March 2025
22AQI
22AQI
14th March 2025
26AQI
26AQI
15th March 2025
53AQI
53AQI
16th March 2025
46AQI
46AQI
17th March 2025
21AQI
21AQI
18th March 2025
25AQI
25AQI
19th March 2025
26AQI
26AQI
20th March 2025
22AQI
22AQI
21st March 2025
31AQI
31AQI
22nd March 2025
32AQI
32AQI
23rd March 2025
31AQI
31AQI
24th March 2025
33AQI
33AQI
25th March 2025
44AQI
44AQI
26th March 2025
31AQI
31AQI
27th March 2025
23AQI
23AQI
28th March 2025
27AQI
27AQI
29th March 2025
24AQI
24AQI
30th March 2025
20AQI
20AQI
31st March 2025
22AQI
22AQI
1st April 2025
25AQI
25AQI
2nd April 2025
26AQI
26AQI
3rd April 2025
29AQI
29AQI
4th April 2025
28AQI
28AQI
5th April 2025
24AQI
24AQI
6th April 2025
29AQI
29AQI
7th April 2025
21AQI
21AQI
8th April 2025
25AQI
25AQI
9th April 2025
32AQI
32AQI
10th April 2025
33AQI
33AQI
11th April 2025
26AQI
26AQI
12th April 2025
41AQI
41AQI
13th April 2025
47AQI
47AQI
14th April 2025
45AQI
45AQI
15th April 2025
36AQI
36AQI
16th April 2025
40AQI
40AQI
17th April 2025
38AQI
38AQI
18th April 2025
36AQI
36AQI
19th April 2025
38AQI
38AQI
20th April 2025
48AQI
48AQI
21st April 2025
46AQI
46AQI
22nd April 2025
43AQI
43AQI
23rd April 2025
51AQI
51AQI
24th April 2025
42AQI
42AQI
25th April 2025
29AQI
29AQI
26th April 2025
22AQI
22AQI
27th April 2025
24AQI
24AQI
28th April 2025
37AQI
37AQI
29th April 2025
39AQI
39AQI
30th April 2025
43AQI
43AQI
1st May 2025
39AQI
39AQI
2nd May 2025
37AQI
37AQI
3rd May 2025
24AQI
24AQI
4th May 2025
34AQI
34AQI
5th May 2025
40AQI
40AQI
6th May 2025
47AQI
47AQI
7th May 2025
49AQI
49AQI
8th May 2025
43AQI
43AQI
9th May 2025
35AQI
35AQI
10th May 2025
35AQI
35AQI
11th May 2025
29AQI
29AQI
12th May 2025
23AQI
23AQI
13th May 2025
20AQI
20AQI
14th May 2025
19AQI
19AQI
15th May 2025
20AQI
20AQI
16th May 2025
22AQI
22AQI
17th May 2025
31AQI
31AQI
18th May 2025
33AQI
33AQI
19th May 2025
43AQI
43AQI
20th May 2025
32AQI
32AQI
21st May 2025
45AQI
45AQI
22nd May 2025
40AQI
40AQI
23rd May 2025
27AQI
27AQI
24th May 2025
35AQI
35AQI
25th May 2025
23AQI
23AQI
26th May 2025
20AQI
20AQI
27th May 2025
31AQI
31AQI
28th May 2025
35AQI
35AQI
29th May 2025
23AQI
23AQI
30th May 2025
40AQI
40AQI
31st May 2025
49AQI
49AQI
1st June 2025
53AQI
53AQI
2nd June 2025
51AQI
51AQI
3rd June 2025
41AQI
41AQI
4th June 2025
53AQI
53AQI
5th June 2025
49AQI
49AQI
6th June 2025
37AQI
37AQI
7th June 2025
40AQI
40AQI
8th June 2025
30AQI
30AQI
9th June 2025
25AQI
25AQI
10th June 2025
32AQI
32AQI
11th June 2025
49AQI
49AQI
12th June 2025
49AQI
49AQI
13th June 2025
51AQI
51AQI
14th June 2025
49AQI
49AQI
15th June 2025
51AQI
51AQI
16th June 2025
48AQI
48AQI
17th June 2025
42AQI
42AQI
18th June 2025
43AQI
43AQI
19th June 2025
50AQI
50AQI
20th June 2025
45AQI
45AQI
21st June 2025
41AQI
41AQI
22nd June 2025
40AQI
40AQI
23rd June 2025
42AQI
42AQI
24th June 2025
33AQI
33AQI
25th June 2025
26AQI
26AQI
26th June 2025
31AQI
31AQI
27th June 2025
40AQI
40AQI
28th June 2025
44AQI
44AQI
29th June 2025
39AQI
39AQI
30th June 2025
31AQI
31AQI
1st July 2025
34AQI
34AQI
2nd July 2025
29AQI
29AQI
3rd July 2025
43AQI
43AQI
4th July 2025
40AQI
40AQI
5th July 2025
46AQI
46AQI
6th July 2025
34AQI
34AQI
7th July 2025
30AQI
30AQI
8th July 2025
26AQI
26AQI
9th July 2025
23AQI
23AQI
10th July 2025
32AQI
32AQI
11th July 2025
43AQI
43AQI
12th July 2025
43AQI
43AQI
13th July 2025
43AQI
43AQI
14th July 2025
32AQI
32AQI
15th July 2025
22AQI
22AQI
16th July 2025
23AQI
23AQI
17th July 2025
25AQI
25AQI
18th July 2025
21AQI
21AQI
19th July 2025
27AQI
27AQI
20th July 2025
26AQI
26AQI
21st July 2025
26AQI
26AQI
22nd July 2025
17AQI
17AQI
23rd July 2025
20AQI
20AQI
24th July 2025
19AQI
19AQI
25th July 2025
19AQI
19AQI
26th July 2025
19AQI
19AQI
27th July 2025
17AQI
17AQI
28th July 2025
25AQI
25AQI
29th July 2025
31AQI
31AQI
30th July 2025
34AQI
34AQI
31st July 2025
29AQI
29AQI
1st August 2025
33AQI
33AQI
2nd August 2025
35AQI
35AQI
3rd August 2025
32AQI
32AQI
4th August 2025
41AQI
41AQI
5th August 2025
32AQI
32AQI
6th August 2025
41AQI
41AQI
7th August 2025
34AQI
34AQI
8th August 2025
29AQI
29AQI
9th August 2025
47AQI
47AQI
10th August 2025
42AQI
42AQI
50AQI
33AQI
30AQI
35AQI
33AQI
42AQI
29AQI
37AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202536AQI
17
14
26
2
30
1
29
1
31
25
5
31
10
199
23
Highest AQI recorded in
January50AQI
Lowest AQI recorded in
July29AQI
202433AQI
22
2
1
1
9
31
29
1
24
7
25
4
27
4
30
1
30
27
4
27
3
14
17
295
43
1
1
Highest AQI recorded in
December52AQI
Lowest AQI recorded in
March18AQI
202330AQI
31
27
1
31
30
31
30
27
4
28
3
24
5
1
29
2
24
5
19
10
2
331
30
1
2
Highest AQI recorded in
December51AQI
Lowest AQI recorded in
May18AQI
202235AQI
12
18
15
7
31
17
31
30
20
1
23
6
24
7
20
10
19
12
243
60
Highest AQI recorded in
January48AQI
Lowest AQI recorded in
July23AQI
202142AQI
15
15
24
4
28
2
21
9
23
8
26
4
22
9
19
11
1
15
15
28
3
18
12
21
10
260
102
1
Highest AQI recorded in
August53AQI
Lowest AQI recorded in
June33AQI
202046AQI
13
20
18
30
29
2
17
11
2
1
11
12
3
4
19
8
1
2
19
11
18
11
2
194
55
8
7
Highest AQI recorded in
September74AQI
Lowest AQI recorded in
May28AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2020(Avg.)
46AQILeast Polluted Year Recorded
2023(Avg.)
30AQISan Jose Knox Avenue's annual 2025 AQI (36) shows an average percentage change of -1.4% (improved AQI) compared to previous years: 2020 (46), 2021 (42), 2022 (35), 2023 (30), 2024 (33).
