Napa Valley College, Napa, 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+
November Air Quality Analysis
Napa Valley College, Napa, California, United States
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
10th Nov 2024
66AQILowest AQI recorded on
29th Nov 2023
19AQISame Day Analysis (1st November ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 1st highest AQI at 52 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 1st Nov - 2nd Nov 2025
Napa Valley College, Napa, California, United States
AQI
Day
Night
.
7 AM1st Nov 2025
6 PM
6 AM2nd Nov 2025
Day time
Avg. Highest Time
12PM1st Nov
60AQI
Avg. Lowest Time
7AM1st Nov
41AQI
Night time
Avg. Highest Time
9PM1st Nov
57AQI
Avg. Lowest Time
6AM2nd Nov
38AQI
In the last 24 hours,
Napa Valley College's AQI reached its highest point of 60 at 12 PM during the Day, while the lowest point, 38, was recorded at 6 AM during the Night between 1st Nov and 2nd Nov 2025.
Day & Night AQI Trend : Oct - Nov 2025
Napa Valley College, Napa, California, United States
OctNov
03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd
Day
Night
3rd Oct 2025237 AMAQI
3rd Oct 2025238 AMAQI
3rd Oct 2025269 AMAQI
3rd Oct 20253010 AMAQI
3rd Oct 20254311 AMAQI
3rd Oct 20254312 PMAQI
3rd Oct 2025401 PMAQI
3rd Oct 2025472 PMAQI
3rd Oct 2025423 PMAQI
3rd Oct 2025374 PMAQI
3rd Oct 2025335 PMAQI
3rd Oct 2025616 PMAQI
3rd Oct 2025437 PMAQI
3rd Oct 2025448 PMAQI
3rd Oct 2025519 PMAQI
3rd Oct 20255210 PMAQI
3rd Oct 20253111 PMAQI
4th Oct 20254012 AMAQI
4th Oct 2025441 AMAQI
4th Oct 2025492 AMAQI
4th Oct 2025563 AMAQI
4th Oct 2025554 AMAQI
4th Oct 2025505 AMAQI
4th Oct 2025406 AMAQI
17°C13/23°C
4th Oct 2025467 AMAQI
4th Oct 2025428 AMAQI
4th Oct 2025319 AMAQI
4th Oct 20252610 AMAQI
4th Oct 20254511 AMAQI
4th Oct 20255612 PMAQI
4th Oct 2025621 PMAQI
4th Oct 2025572 PMAQI
4th Oct 2025583 PMAQI
4th Oct 2025574 PMAQI
4th Oct 2025685 PMAQI
4th Oct 2025696 PMAQI
4th Oct 2025627 PMAQI
4th Oct 2025698 PMAQI
4th Oct 2025659 PMAQI
4th Oct 20254910 PMAQI
4th Oct 20255811 PMAQI
5th Oct 20255112 AMAQI
5th Oct 2025411 AMAQI
5th Oct 2025292 AMAQI
5th Oct 2025493 AMAQI
5th Oct 2025494 AMAQI
5th Oct 2025535 AMAQI
5th Oct 2025516 AMAQI
18°C11/27°C
5th Oct 2025407 AMAQI
5th Oct 2025418 AMAQI
5th Oct 2025389 AMAQI
5th Oct 20254610 AMAQI
5th Oct 20254411 AMAQI
5th Oct 20254012 PMAQI
5th Oct 2025521 PMAQI
5th Oct 2025562 PMAQI
5th Oct 2025603 PMAQI
5th Oct 2025584 PMAQI
5th Oct 2025505 PMAQI
5th Oct 2025486 PMAQI
5th Oct 2025507 PMAQI
5th Oct 2025628 PMAQI
5th Oct 2025709 PMAQI
5th Oct 20256510 PMAQI
5th Oct 20255811 PMAQI
6th Oct 20255712 AMAQI
6th Oct 2025521 AMAQI
6th Oct 2025492 AMAQI
6th Oct 2025463 AMAQI
6th Oct 2025514 AMAQI
6th Oct 2025465 AMAQI
6th Oct 2025596 AMAQI
19°C11/29°C
6th Oct 2025607 AMAQI
6th Oct 2025438 AMAQI
6th Oct 2025339 AMAQI
6th Oct 20251810 AMAQI
7th Oct 2025204 AMAQI
7th Oct 2025285 AMAQI
7th Oct 2025426 AMAQI
20°C11/32°C
7th Oct 2025437 AMAQI
7th Oct 2025338 AMAQI
7th Oct 2025229 AMAQI
7th Oct 20254710 AMAQI
7th Oct 20254811 AMAQI
7th Oct 20255212 PMAQI
7th Oct 2025531 PMAQI
7th Oct 2025502 PMAQI
7th Oct 2025523 PMAQI
7th Oct 2025554 PMAQI
7th Oct 2025525 PMAQI
7th Oct 2025386 PMAQI
7th Oct 2025457 PMAQI
7th Oct 2025618 PMAQI
7th Oct 2025649 PMAQI
7th Oct 20256510 PMAQI
7th Oct 20256511 PMAQI
8th Oct 20255212 AMAQI
8th Oct 2025571 AMAQI
8th Oct 2025542 AMAQI
8th Oct 2025553 AMAQI
8th Oct 2025504 AMAQI
8th Oct 2025435 AMAQI
8th Oct 2025506 AMAQI
21°C13/33°C
8th Oct 2025517 AMAQI
8th Oct 2025518 AMAQI
8th Oct 2025549 AMAQI
8th Oct 20254910 AMAQI
8th Oct 20255111 AMAQI
8th Oct 20255512 PMAQI
8th Oct 2025511 PMAQI
8th Oct 2025542 PMAQI
8th Oct 2025563 PMAQI
8th Oct 2025564 PMAQI
8th Oct 2025515 PMAQI
8th Oct 2025466 PMAQI
8th Oct 2025467 PMAQI
8th Oct 2025528 PMAQI
8th Oct 2025529 PMAQI
8th Oct 20254810 PMAQI
8th Oct 20254211 PMAQI
9th Oct 20254512 AMAQI
9th Oct 2025531 AMAQI
9th Oct 2025412 AMAQI
9th Oct 2025443 AMAQI
9th Oct 2025524 AMAQI
9th Oct 2025455 AMAQI
9th Oct 2025456 AMAQI
16°C13/20°C
9th Oct 2025427 AMAQI
9th Oct 2025378 AMAQI
9th Oct 2025209 AMAQI
9th Oct 20252110 AMAQI
9th Oct 20252711 AMAQI
9th Oct 20255212 PMAQI
9th Oct 2025581 PMAQI
9th Oct 2025562 PMAQI
9th Oct 2025603 PMAQI
9th Oct 2025554 PMAQI
9th Oct 2025405 PMAQI
9th Oct 2025466 PMAQI
9th Oct 2025497 PMAQI
9th Oct 2025438 PMAQI
9th Oct 2025459 PMAQI
9th Oct 20255210 PMAQI
9th Oct 20253911 PMAQI
10th Oct 20254112 AMAQI
10th Oct 2025211 AMAQI
10th Oct 2025182 AMAQI
10th Oct 2025193 AMAQI
10th Oct 2025484 AMAQI
10th Oct 2025515 AMAQI
10th Oct 2025436 AMAQI
17°C13/20°C
10th Oct 2025197 AMAQI
10th Oct 2025218 AMAQI
10th Oct 2025399 AMAQI
10th Oct 20254710 AMAQI
10th Oct 20255011 AMAQI
10th Oct 20253212 PMAQI
10th Oct 2025261 PMAQI
10th Oct 2025462 PMAQI
10th Oct 2025423 PMAQI
10th Oct 2025624 PMAQI
10th Oct 2025575 PMAQI
10th Oct 2025236 PMAQI
10th Oct 2025187 PMAQI
10th Oct 2025168 PMAQI
10th Oct 2025219 PMAQI
10th Oct 20251610 PMAQI
10th Oct 20251611 PMAQI
11th Oct 20251412 AMAQI
11th Oct 2025201 AMAQI
11th Oct 2025322 AMAQI
11th Oct 2025133 AMAQI
11th Oct 2025164 AMAQI
11th Oct 2025415 AMAQI
11th Oct 2025166 AMAQI
16°C10/24°C
11th Oct 2025167 AMAQI
11th Oct 2025138 AMAQI
11th Oct 2025269 AMAQI
11th Oct 20251710 AMAQI
11th Oct 20251311 AMAQI
11th Oct 20251412 PMAQI
11th Oct 2025131 PMAQI
11th Oct 2025122 PMAQI
11th Oct 2025123 PMAQI
11th Oct 2025124 PMAQI
11th Oct 2025125 PMAQI
11th Oct 2025126 PMAQI
11th Oct 2025207 PMAQI
11th Oct 2025408 PMAQI
11th Oct 2025429 PMAQI
11th Oct 20254210 PMAQI
11th Oct 20253911 PMAQI
12th Oct 20253612 AMAQI
12th Oct 2025421 AMAQI
12th Oct 2025502 AMAQI
12th Oct 2025463 AMAQI
12th Oct 2025464 AMAQI
12th Oct 2025425 AMAQI
12th Oct 2025176 AMAQI
16°C10/23°C
12th Oct 2025287 AMAQI
12th Oct 2025348 AMAQI
12th Oct 2025209 AMAQI
12th Oct 20254710 AMAQI
12th Oct 20253611 AMAQI
12th Oct 20252512 PMAQI
12th Oct 2025131 PMAQI
12th Oct 2025162 PMAQI
12th Oct 2025183 PMAQI
12th Oct 2025314 PMAQI
12th Oct 2025235 PMAQI
12th Oct 2025396 PMAQI
12th Oct 2025357 PMAQI
12th Oct 2025418 PMAQI
12th Oct 2025559 PMAQI
12th Oct 20255610 PMAQI
12th Oct 20255711 PMAQI
13th Oct 20255612 AMAQI
13th Oct 2025551 AMAQI
13th Oct 2025512 AMAQI
13th Oct 2025543 AMAQI
13th Oct 2025524 AMAQI
13th Oct 2025505 AMAQI
13th Oct 2025436 AMAQI
16°C9/26°C
13th Oct 2025487 AMAQI
13th Oct 2025438 AMAQI
13th Oct 2025339 AMAQI
13th Oct 20253910 AMAQI
13th Oct 20253511 AMAQI
13th Oct 20254912 PMAQI
13th Oct 2025411 PMAQI
13th Oct 2025492 PMAQI
13th Oct 2025403 PMAQI
13th Oct 2025454 PMAQI
13th Oct 2025525 PMAQI
13th Oct 2025516 PMAQI
13th Oct 2025567 PMAQI
13th Oct 2025518 PMAQI
13th Oct 2025479 PMAQI
13th Oct 20255910 PMAQI
13th Oct 20256911 PMAQI
14th Oct 20253712 AMAQI
14th Oct 2025491 AMAQI
14th Oct 2025392 AMAQI
14th Oct 2025253 AMAQI
14th Oct 2025254 AMAQI
14th Oct 2025245 AMAQI
14th Oct 2025266 AMAQI
13°C10/18°C
14th Oct 2025307 AMAQI
14th Oct 2025358 AMAQI
14th Oct 2025269 AMAQI
14th Oct 20251910 AMAQI
14th Oct 20252111 AMAQI
14th Oct 20253412 PMAQI
14th Oct 2025361 PMAQI
14th Oct 2025272 PMAQI
14th Oct 2025303 PMAQI
14th Oct 2025304 PMAQI
14th Oct 2025495 PMAQI
14th Oct 2025346 PMAQI
14th Oct 2025167 PMAQI
14th Oct 2025178 PMAQI
14th Oct 2025219 PMAQI
14th Oct 20254610 PMAQI
14th Oct 20255311 PMAQI
15th Oct 20255212 AMAQI
15th Oct 2025421 AMAQI
15th Oct 2025422 AMAQI
15th Oct 2025383 AMAQI
15th Oct 2025384 AMAQI
15th Oct 2025445 AMAQI
15th Oct 2025426 AMAQI
12°C10/16°C
15th Oct 2025407 AMAQI
15th Oct 2025348 AMAQI
15th Oct 2025169 AMAQI
15th Oct 20254110 AMAQI
15th Oct 20254211 AMAQI
15th Oct 20254812 PMAQI
15th Oct 2025521 PMAQI
15th Oct 2025552 PMAQI
15th Oct 2025543 PMAQI
15th Oct 2025534 PMAQI
15th Oct 2025415 PMAQI
15th Oct 2025286 PMAQI
15th Oct 2025307 PMAQI
15th Oct 2025408 PMAQI
15th Oct 2025459 PMAQI
15th Oct 20253910 PMAQI
15th Oct 20254311 PMAQI
16th Oct 20254412 AMAQI
16th Oct 2025481 AMAQI
16th Oct 2025182 AMAQI
16th Oct 2025463 AMAQI
16th Oct 2025464 AMAQI
16th Oct 2025495 AMAQI
16th Oct 2025326 AMAQI
14°C12/16°C
16th Oct 2025537 AMAQI
16th Oct 2025218 AMAQI
16th Oct 2025199 AMAQI
16th Oct 20254110 AMAQI
16th Oct 20259211 AMAQI
16th Oct 20258112 PMAQI
16th Oct 2025521 PMAQI
16th Oct 2025522 PMAQI
16th Oct 2025493 PMAQI
16th Oct 2025394 PMAQI
16th Oct 2025385 PMAQI
16th Oct 2025696 PMAQI
16th Oct 2025647 PMAQI
16th Oct 2025608 PMAQI
16th Oct 2025649 PMAQI
16th Oct 20255510 PMAQI
16th Oct 20255811 PMAQI
17th Oct 20255512 AMAQI
17th Oct 2025471 AMAQI
17th Oct 2025432 AMAQI
17th Oct 2025433 AMAQI
17th Oct 2025454 AMAQI
17th Oct 2025475 AMAQI
17th Oct 2025466 AMAQI
14°C9/22°C
17th Oct 2025287 AMAQI
17th Oct 2025418 AMAQI
17th Oct 2025299 AMAQI
17th Oct 20253710 AMAQI
17th Oct 20255611 AMAQI
17th Oct 20255612 PMAQI
17th Oct 2025571 PMAQI
17th Oct 2025542 PMAQI
17th Oct 2025523 PMAQI
17th Oct 2025504 PMAQI
17th Oct 2025485 PMAQI
17th Oct 2025496 PMAQI
17th Oct 2025547 PMAQI
17th Oct 2025528 PMAQI
17th Oct 2025549 PMAQI
17th Oct 20255610 PMAQI
17th Oct 20255911 PMAQI
18th Oct 20255812 AMAQI
18th Oct 2025611 AMAQI
18th Oct 2025592 AMAQI
18th Oct 2025653 AMAQI
18th Oct 2025624 AMAQI
18th Oct 2025615 AMAQI
18th Oct 2025596 AMAQI
16°C8/26°C
18th Oct 2025587 AMAQI
18th Oct 2025578 AMAQI
18th Oct 2025589 AMAQI
18th Oct 20255710 AMAQI
18th Oct 20255711 AMAQI
18th Oct 20256412 PMAQI
18th Oct 2025651 PMAQI
18th Oct 2025622 PMAQI
18th Oct 2025523 PMAQI
18th Oct 2025534 PMAQI
18th Oct 2025465 PMAQI
18th Oct 2025516 PMAQI
18th Oct 2025547 PMAQI
18th Oct 2025578 PMAQI
18th Oct 2025529 PMAQI
18th Oct 20255510 PMAQI
18th Oct 20256011 PMAQI
19th Oct 20255612 AMAQI
19th Oct 2025571 AMAQI
19th Oct 2025592 AMAQI
19th Oct 2025633 AMAQI
19th Oct 2025644 AMAQI
19th Oct 2025635 AMAQI
19th Oct 2025646 AMAQI
19°C11/28°C
19th Oct 2025647 AMAQI
19th Oct 2025518 AMAQI
19th Oct 2025549 AMAQI
19th Oct 20255510 AMAQI
19th Oct 20255511 AMAQI
19th Oct 20256112 PMAQI
19th Oct 2025681 PMAQI
19th Oct 2025612 PMAQI
19th Oct 2025633 PMAQI
19th Oct 2025664 PMAQI
19th Oct 2025755 PMAQI
19th Oct 2025736 PMAQI
19th Oct 2025827 PMAQI
19th Oct 2025668 PMAQI
19th Oct 2025749 PMAQI
19th Oct 20255810 PMAQI
19th Oct 20255411 PMAQI
20th Oct 20255212 AMAQI
20th Oct 2025541 AMAQI
20th Oct 2025562 AMAQI
20th Oct 2025563 AMAQI
20th Oct 2025394 AMAQI
20th Oct 2025205 AMAQI
20th Oct 2025166 AMAQI
17°C10/26°C
20th Oct 2025367 AMAQI
20th Oct 2025358 AMAQI
20th Oct 2025299 AMAQI
20th Oct 20255410 AMAQI
20th Oct 20255611 AMAQI
20th Oct 20254012 PMAQI
20th Oct 2025201 PMAQI
20th Oct 2025212 PMAQI
20th Oct 2025283 PMAQI
20th Oct 2025164 PMAQI
20th Oct 2025215 PMAQI
20th Oct 2025206 PMAQI
20th Oct 2025257 PMAQI
20th Oct 2025368 PMAQI
20th Oct 2025579 PMAQI
20th Oct 20256310 PMAQI
20th Oct 20256211 PMAQI
21st Oct 20256112 AMAQI
21st Oct 2025601 AMAQI
21st Oct 2025592 AMAQI
21st Oct 2025623 AMAQI
21st Oct 2025614 AMAQI
21st Oct 2025715 AMAQI
21st Oct 2025676 AMAQI
18°C11/29°C
21st Oct 2025307 AMAQI
21st Oct 2025248 AMAQI
21st Oct 2025339 AMAQI
21st Oct 20254010 AMAQI
21st Oct 20253711 AMAQI
21st Oct 20253512 PMAQI
21st Oct 2025341 PMAQI
21st Oct 2025372 PMAQI
21st Oct 2025403 PMAQI
21st Oct 2025354 PMAQI
21st Oct 2025375 PMAQI
21st Oct 2025456 PMAQI
21st Oct 2025487 PMAQI
21st Oct 2025548 PMAQI
21st Oct 2025599 PMAQI
21st Oct 20255810 PMAQI
21st Oct 20255311 PMAQI
22nd Oct 20254812 AMAQI
22nd Oct 2025451 AMAQI
22nd Oct 2025442 AMAQI
22nd Oct 2025443 AMAQI
22nd Oct 2025424 AMAQI
22nd Oct 2025415 AMAQI
22nd Oct 2025406 AMAQI
18°C11/29°C
22nd Oct 2025367 AMAQI
22nd Oct 2025348 AMAQI
22nd Oct 2025329 AMAQI
22nd Oct 20253010 AMAQI
22nd Oct 20253511 AMAQI
22nd Oct 20253712 PMAQI
22nd Oct 2025411 PMAQI
22nd Oct 2025482 PMAQI
22nd Oct 2025403 PMAQI
22nd Oct 2025304 PMAQI
22nd Oct 2025405 PMAQI
22nd Oct 2025486 PMAQI
22nd Oct 2025507 PMAQI
22nd Oct 2025488 PMAQI
22nd Oct 2025459 PMAQI
22nd Oct 20254410 PMAQI
22nd Oct 20254811 PMAQI
23rd Oct 20254612 AMAQI
23rd Oct 2025431 AMAQI
23rd Oct 2025412 AMAQI
23rd Oct 2025443 AMAQI
23rd Oct 2025454 AMAQI
23rd Oct 2025425 AMAQI
23rd Oct 2025426 AMAQI
16°C13/21°C
23rd Oct 2025397 AMAQI
23rd Oct 2025388 AMAQI
23rd Oct 2025409 AMAQI
23rd Oct 20254510 AMAQI
23rd Oct 20253911 AMAQI
23rd Oct 20253912 PMAQI
23rd Oct 2025531 PMAQI
23rd Oct 2025602 PMAQI
23rd Oct 2025643 PMAQI
23rd Oct 2025634 PMAQI
23rd Oct 2025585 PMAQI
23rd Oct 2025586 PMAQI
23rd Oct 2025587 PMAQI
23rd Oct 2025628 PMAQI
23rd Oct 2025609 PMAQI
23rd Oct 20255610 PMAQI
23rd Oct 20255511 PMAQI
24th Oct 20254212 AMAQI
24th Oct 2025331 AMAQI
24th Oct 2025372 AMAQI
24th Oct 2025453 AMAQI
24th Oct 2025424 AMAQI
24th Oct 2025425 AMAQI
24th Oct 2025426 AMAQI
14°C10/22°C
24th Oct 2025407 AMAQI
24th Oct 2025348 AMAQI
24th Oct 2025309 AMAQI
24th Oct 20253610 AMAQI
24th Oct 20254711 AMAQI
24th Oct 20254812 PMAQI
24th Oct 2025521 PMAQI
24th Oct 2025532 PMAQI
24th Oct 2025453 PMAQI
24th Oct 2025394 PMAQI
24th Oct 2025455 PMAQI
24th Oct 2025486 PMAQI
24th Oct 2025407 PMAQI
24th Oct 2025348 PMAQI
24th Oct 2025329 PMAQI
24th Oct 20252310 PMAQI
24th Oct 20251711 PMAQI
25th Oct 20252012 AMAQI
25th Oct 2025211 AMAQI
25th Oct 2025172 AMAQI
25th Oct 2025183 AMAQI
25th Oct 2025174 AMAQI
25th Oct 2025235 AMAQI
25th Oct 2025226 AMAQI
14°C11/19°C
25th Oct 2025177 AMAQI
25th Oct 2025178 AMAQI
25th Oct 2025219 AMAQI
25th Oct 20252310 AMAQI
25th Oct 20252211 AMAQI
25th Oct 20253212 PMAQI
25th Oct 2025351 PMAQI
25th Oct 2025352 PMAQI
25th Oct 2025403 PMAQI
25th Oct 2025344 PMAQI
25th Oct 2025255 PMAQI
25th Oct 2025226 PMAQI
25th Oct 2025287 PMAQI
25th Oct 2025308 PMAQI
25th Oct 2025309 PMAQI
25th Oct 20253010 PMAQI
25th Oct 20253911 PMAQI
26th Oct 20253712 AMAQI
26th Oct 2025261 AMAQI
26th Oct 2025342 AMAQI
26th Oct 2025403 AMAQI
26th Oct 2025444 AMAQI
26th Oct 2025405 AMAQI
26th Oct 2025336 AMAQI
15°C13/20°C
26th Oct 2025287 AMAQI
26th Oct 2025288 AMAQI
26th Oct 2025319 AMAQI
26th Oct 20253110 AMAQI
26th Oct 20253411 AMAQI
26th Oct 20254812 PMAQI
26th Oct 2025531 PMAQI
26th Oct 2025512 PMAQI
26th Oct 2025503 PMAQI
26th Oct 2025514 PMAQI
26th Oct 2025425 PMAQI
26th Oct 2025346 PMAQI
26th Oct 2025387 PMAQI
26th Oct 2025398 PMAQI
26th Oct 2025309 PMAQI
26th Oct 20252410 PMAQI
26th Oct 20252411 PMAQI
27th Oct 20253012 AMAQI
27th Oct 2025301 AMAQI
27th Oct 2025342 AMAQI
27th Oct 2025343 AMAQI
27th Oct 2025264 AMAQI
27th Oct 2025205 AMAQI
27th Oct 2025246 AMAQI
15°C13/18°C
27th Oct 2025317 AMAQI
27th Oct 2025308 AMAQI
27th Oct 2025239 AMAQI
27th Oct 20251710 AMAQI
27th Oct 20251511 AMAQI
27th Oct 20251512 PMAQI
27th Oct 2025171 PMAQI
27th Oct 2025152 PMAQI
27th Oct 2025113 PMAQI
27th Oct 2025204 PMAQI
27th Oct 2025285 PMAQI
27th Oct 2025206 PMAQI
27th Oct 2025147 PMAQI
27th Oct 2025148 PMAQI
27th Oct 2025149 PMAQI
27th Oct 20252210 PMAQI
27th Oct 20252611 PMAQI
28th Oct 20252812 AMAQI
28th Oct 2025331 AMAQI
28th Oct 2025282 AMAQI
28th Oct 2025233 AMAQI
28th Oct 2025284 AMAQI
28th Oct 2025345 AMAQI
28th Oct 2025316 AMAQI
16°C10/25°C
28th Oct 2025267 AMAQI
28th Oct 2025238 AMAQI
28th Oct 2025229 AMAQI
28th Oct 20252810 AMAQI
28th Oct 20254611 AMAQI
28th Oct 20255812 PMAQI
28th Oct 2025511 PMAQI
28th Oct 2025452 PMAQI
28th Oct 2025363 PMAQI
28th Oct 2025264 PMAQI
28th Oct 2025255 PMAQI
28th Oct 2025276 PMAQI
28th Oct 2025237 PMAQI
28th Oct 2025218 PMAQI
28th Oct 2025209 PMAQI
28th Oct 20253710 PMAQI
28th Oct 20255211 PMAQI
29th Oct 20255412 AMAQI
29th Oct 2025521 AMAQI
29th Oct 2025522 AMAQI
29th Oct 2025533 AMAQI
29th Oct 2025504 AMAQI
29th Oct 2025475 AMAQI
29th Oct 2025486 AMAQI
16°C8/26°C
29th Oct 2025487 AMAQI
29th Oct 2025538 AMAQI
29th Oct 2025479 AMAQI
29th Oct 20255010 AMAQI
29th Oct 20255511 AMAQI
29th Oct 20255512 PMAQI
29th Oct 2025531 PMAQI
29th Oct 2025502 PMAQI
29th Oct 2025513 PMAQI
29th Oct 2025474 PMAQI
29th Oct 2025455 PMAQI
29th Oct 2025396 PMAQI
29th Oct 2025337 PMAQI
29th Oct 2025348 PMAQI
29th Oct 2025409 PMAQI
29th Oct 20254910 PMAQI
29th Oct 20255211 PMAQI
30th Oct 20255212 AMAQI
30th Oct 2025541 AMAQI
30th Oct 2025542 AMAQI
30th Oct 2025483 AMAQI
30th Oct 2025424 AMAQI
30th Oct 2025415 AMAQI
30th Oct 2025326 AMAQI
19°C11/29°C
30th Oct 2025237 AMAQI
30th Oct 2025298 AMAQI
30th Oct 2025349 AMAQI
30th Oct 20253410 AMAQI
30th Oct 20253711 AMAQI
30th Oct 20254412 PMAQI
30th Oct 2025521 PMAQI
30th Oct 2025552 PMAQI
30th Oct 2025553 PMAQI
30th Oct 2025544 PMAQI
30th Oct 2025565 PMAQI
30th Oct 2025586 PMAQI
30th Oct 2025597 PMAQI
30th Oct 2025598 PMAQI
30th Oct 2025589 PMAQI
30th Oct 20255810 PMAQI
30th Oct 20255611 PMAQI
31st Oct 20255412 AMAQI
31st Oct 2025541 AMAQI
31st Oct 2025552 AMAQI
31st Oct 2025543 AMAQI
31st Oct 2025524 AMAQI
31st Oct 2025505 AMAQI
31st Oct 2025486 AMAQI
13°C11/18°C
31st Oct 2025457 AMAQI
31st Oct 2025448 AMAQI
31st Oct 2025499 AMAQI
31st Oct 20254910 AMAQI
31st Oct 20254811 AMAQI
31st Oct 20254912 PMAQI
31st Oct 2025471 PMAQI
31st Oct 2025462 PMAQI
31st Oct 2025363 PMAQI
31st Oct 2025344 PMAQI
31st Oct 2025465 PMAQI
31st Oct 2025646 PMAQI
31st Oct 2025647 PMAQI
31st Oct 2025548 PMAQI
31st Oct 2025529 PMAQI
31st Oct 20256010 PMAQI
31st Oct 20256211 PMAQI
1st Nov 20254812 AMAQI
1st Nov 2025421 AMAQI
1st Nov 2025502 AMAQI
1st Nov 2025563 AMAQI
1st Nov 2025554 AMAQI
1st Nov 2025525 AMAQI
1st Nov 2025466 AMAQI
15°C9/25°C
1st Nov 2025417 AMAQI
1st Nov 2025428 AMAQI
1st Nov 2025439 AMAQI
1st Nov 20254210 AMAQI
1st Nov 20255311 AMAQI
1st Nov 20256012 PMAQI
1st Nov 2025581 PMAQI
1st Nov 2025552 PMAQI
1st Nov 2025573 PMAQI
1st Nov 2025564 PMAQI
1st Nov 2025525 PMAQI
1st Nov 2025536 PMAQI
1st Nov 2025547 PMAQI
1st Nov 2025568 PMAQI
1st Nov 2025579 PMAQI
1st Nov 20255710 PMAQI
1st Nov 20255611 PMAQI
2nd Nov 20255512 AMAQI
2nd Nov 2025561 AMAQI
2nd Nov 2025532 AMAQI
2nd Nov 2025543 AMAQI
2nd Nov 2025524 AMAQI
2nd Nov 2025485 AMAQI
2nd Nov 2025386 AMAQI
15°C9/23°C
2nd Nov 2025357 AMAQI
7 AM2nd Nov 2025368 AMAQI
2nd Nov 2025369 AMAQI
2nd Nov 20253210 AMAQI
2nd Nov 20254211 AMAQI
2nd Nov 20255212 PMAQI
12 PM2nd Nov 2025541 PMAQI
2nd Nov 2025562 PMAQI
2nd Nov 2025583 PMAQI
6 PM
12 AM
6 AM
--°C/°C
Day time
Avg. Highest Time
12 PM - 6 PM
45AQI
7 hours / Day
210 hours / Month
Avg. Lowest Time
9 AM
33AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 6 PM (Avg. 45), while the lowest AQI was between 9 AM to 9 AM (Avg. 33).
Night time
Avg. Highest Time
9 PM - 11 PM
48AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
6 AM
39AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 PM to 11 PM (Avg. 48), while the lowest AQI was between 6 AM to 6 AM (Avg. 39).
2025 Days Vs Air Quality
Napa Valley College, Napa, California, United States
2025
96%
292
4%
13
Total number of days with different AQI categories in last 306 days in 2025 (59 days remaining)
Good
292 DaysModerate
13 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 96%
Health Risk Level:
Very Low
In 2025, 96% of 306 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
Napa Valley College, Napa, 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.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
56AQI
56AQI
2nd January 2025
41AQI
41AQI
3rd January 2025
44AQI
44AQI
4th January 2025
28AQI
28AQI
5th January 2025
33AQI
33AQI
6th January 2025
39AQI
39AQI
7th January 2025
23AQI
23AQI
8th January 2025
26AQI
26AQI
9th January 2025
42AQI
42AQI
10th January 2025
50AQI
50AQI
11th January 2025
33AQI
33AQI
12th January 2025
26AQI
26AQI
13th January 2025
32AQI
32AQI
14th January 2025
34AQI
34AQI
15th January 2025
48AQI
48AQI
16th January 2025
51AQI
51AQI
17th January 2025
47AQI
47AQI
18th January 2025
46AQI
46AQI
19th January 2025
57AQI
57AQI
20th January 2025
37AQI
37AQI
21st January 2025
44AQI
44AQI
22nd January 2025
49AQI
49AQI
23rd January 2025
48AQI
48AQI
24th January 2025
55AQI
55AQI
25th January 2025
46AQI
46AQI
26th January 2025
42AQI
42AQI
27th January 2025
41AQI
41AQI
28th January 2025
48AQI
48AQI
29th January 2025
43AQI
43AQI
30th January 2025
42AQI
42AQI
31st January 2025
39AQI
39AQI
1st February 2025
38AQI
38AQI
2nd February 2025
22AQI
22AQI
3rd February 2025
22AQI
22AQI
4th February 2025
23AQI
23AQI
5th February 2025
25AQI
25AQI
6th February 2025
24AQI
24AQI
7th February 2025
25AQI
25AQI
8th February 2025
23AQI
23AQI
9th February 2025
30AQI
30AQI
10th February 2025
29AQI
29AQI
11th February 2025
31AQI
31AQI
12th February 2025
27AQI
27AQI
13th February 2025
27AQI
27AQI
14th February 2025
30AQI
30AQI
15th February 2025
27AQI
27AQI
16th February 2025
27AQI
27AQI
17th February 2025
22AQI
22AQI
18th February 2025
24AQI
24AQI
19th February 2025
24AQI
24AQI
20th February 2025
25AQI
25AQI
21st February 2025
26AQI
26AQI
22nd February 2025
31AQI
31AQI
23rd February 2025
22AQI
22AQI
24th February 2025
20AQI
20AQI
25th February 2025
22AQI
22AQI
26th February 2025
29AQI
29AQI
27th February 2025
35AQI
35AQI
28th February 2025
40AQI
40AQI
1st March 2025
34AQI
34AQI
2nd March 2025
26AQI
26AQI
3rd March 2025
22AQI
22AQI
4th March 2025
22AQI
22AQI
5th March 2025
25AQI
25AQI
6th March 2025
25AQI
25AQI
7th March 2025
31AQI
31AQI
8th March 2025
29AQI
29AQI
9th March 2025
33AQI
33AQI
10th March 2025
26AQI
26AQI
11th March 2025
28AQI
28AQI
12th March 2025
26AQI
26AQI
13th March 2025
20AQI
20AQI
14th March 2025
18AQI
18AQI
15th March 2025
45AQI
45AQI
16th March 2025
31AQI
31AQI
17th March 2025
16AQI
16AQI
18th March 2025
20AQI
20AQI
19th March 2025
20AQI
20AQI
20th March 2025
17AQI
17AQI
21st March 2025
21AQI
21AQI
22nd March 2025
19AQI
19AQI
23rd March 2025
23AQI
23AQI
24th March 2025
20AQI
20AQI
25th March 2025
31AQI
31AQI
26th March 2025
26AQI
26AQI
27th March 2025
21AQI
21AQI
28th March 2025
26AQI
26AQI
29th March 2025
22AQI
22AQI
30th March 2025
26AQI
26AQI
31st March 2025
27AQI
27AQI
1st April 2025
27AQI
27AQI
2nd April 2025
22AQI
22AQI
3rd April 2025
23AQI
23AQI
4th April 2025
27AQI
27AQI
5th April 2025
28AQI
28AQI
6th April 2025
25AQI
25AQI
7th April 2025
17AQI
17AQI
8th April 2025
20AQI
20AQI
9th April 2025
24AQI
24AQI
10th April 2025
23AQI
23AQI
11th April 2025
22AQI
22AQI
12th April 2025
34AQI
34AQI
13th April 2025
31AQI
31AQI
14th April 2025
31AQI
31AQI
15th April 2025
35AQI
35AQI
16th April 2025
37AQI
37AQI
17th April 2025
25AQI
25AQI
18th April 2025
30AQI
30AQI
19th April 2025
35AQI
35AQI
20th April 2025
32AQI
32AQI
21st April 2025
36AQI
36AQI
22nd April 2025
40AQI
40AQI
23rd April 2025
48AQI
48AQI
24th April 2025
40AQI
40AQI
25th April 2025
23AQI
23AQI
26th April 2025
21AQI
21AQI
27th April 2025
24AQI
24AQI
28th April 2025
29AQI
29AQI
29th April 2025
38AQI
38AQI
30th April 2025
37AQI
37AQI
1st May 2025
38AQI
38AQI
2nd May 2025
31AQI
31AQI
3rd May 2025
22AQI
22AQI
4th May 2025
28AQI
28AQI
5th May 2025
27AQI
27AQI
6th May 2025
39AQI
39AQI
7th May 2025
46AQI
46AQI
8th May 2025
34AQI
34AQI
9th May 2025
35AQI
35AQI
10th May 2025
30AQI
30AQI
11th May 2025
25AQI
25AQI
12th May 2025
23AQI
23AQI
13th May 2025
21AQI
21AQI
14th May 2025
30AQI
30AQI
15th May 2025
35AQI
35AQI
16th May 2025
43AQI
43AQI
17th May 2025
27AQI
27AQI
18th May 2025
27AQI
27AQI
19th May 2025
24AQI
24AQI
20th May 2025
21AQI
21AQI
21st May 2025
34AQI
34AQI
22nd May 2025
31AQI
31AQI
23rd May 2025
27AQI
27AQI
24th May 2025
35AQI
35AQI
25th May 2025
25AQI
25AQI
26th May 2025
18AQI
18AQI
27th May 2025
29AQI
29AQI
28th May 2025
26AQI
26AQI
29th May 2025
21AQI
21AQI
30th May 2025
29AQI
29AQI
31st May 2025
46AQI
46AQI
1st June 2025
50AQI
50AQI
2nd June 2025
50AQI
50AQI
3rd June 2025
41AQI
41AQI
4th June 2025
50AQI
50AQI
5th June 2025
37AQI
37AQI
6th June 2025
21AQI
21AQI
7th June 2025
25AQI
25AQI
8th June 2025
19AQI
19AQI
9th June 2025
19AQI
19AQI
10th June 2025
24AQI
24AQI
11th June 2025
43AQI
43AQI
12th June 2025
48AQI
48AQI
13th June 2025
48AQI
48AQI
14th June 2025
46AQI
46AQI
15th June 2025
49AQI
49AQI
16th June 2025
42AQI
42AQI
17th June 2025
34AQI
34AQI
18th June 2025
30AQI
30AQI
19th June 2025
38AQI
38AQI
20th June 2025
40AQI
40AQI
21st June 2025
36AQI
36AQI
22nd June 2025
32AQI
32AQI
23rd June 2025
35AQI
35AQI
24th June 2025
28AQI
28AQI
25th June 2025
23AQI
23AQI
26th June 2025
28AQI
28AQI
27th June 2025
34AQI
34AQI
28th June 2025
34AQI
34AQI
29th June 2025
29AQI
29AQI
30th June 2025
24AQI
24AQI
1st July 2025
24AQI
24AQI
2nd July 2025
22AQI
22AQI
3rd July 2025
36AQI
36AQI
4th July 2025
34AQI
34AQI
5th July 2025
33AQI
33AQI
6th July 2025
34AQI
34AQI
7th July 2025
23AQI
23AQI
8th July 2025
21AQI
21AQI
9th July 2025
18AQI
18AQI
10th July 2025
23AQI
23AQI
11th July 2025
33AQI
33AQI
12th July 2025
35AQI
35AQI
13th July 2025
29AQI
29AQI
14th July 2025
20AQI
20AQI
15th July 2025
18AQI
18AQI
16th July 2025
20AQI
20AQI
17th July 2025
20AQI
20AQI
18th July 2025
19AQI
19AQI
19th July 2025
20AQI
20AQI
20th July 2025
20AQI
20AQI
21st July 2025
25AQI
25AQI
22nd July 2025
16AQI
16AQI
23rd July 2025
16AQI
16AQI
24th July 2025
16AQI
16AQI
25th July 2025
15AQI
15AQI
26th July 2025
16AQI
16AQI
27th July 2025
17AQI
17AQI
28th July 2025
20AQI
20AQI
29th July 2025
27AQI
27AQI
30th July 2025
25AQI
25AQI
31st July 2025
23AQI
23AQI
1st August 2025
22AQI
22AQI
2nd August 2025
23AQI
23AQI
3rd August 2025
34AQI
34AQI
4th August 2025
35AQI
35AQI
5th August 2025
29AQI
29AQI
6th August 2025
36AQI
36AQI
7th August 2025
30AQI
30AQI
8th August 2025
37AQI
37AQI
9th August 2025
35AQI
35AQI
10th August 2025
28AQI
28AQI
11th August 2025
29AQI
29AQI
12th August 2025
27AQI
27AQI
13th August 2025
26AQI
26AQI
14th August 2025
20AQI
20AQI
15th August 2025
37AQI
37AQI
16th August 2025
17AQI
17AQI
17th August 2025
16AQI
16AQI
18th August 2025
18AQI
18AQI
19th August 2025
21AQI
21AQI
20th August 2025
29AQI
29AQI
21st August 2025
39AQI
39AQI
22nd August 2025
50AQI
50AQI
23rd August 2025
31AQI
31AQI
24th August 2025
26AQI
26AQI
25th August 2025
28AQI
28AQI
26th August 2025
34AQI
34AQI
27th August 2025
41AQI
41AQI
28th August 2025
36AQI
36AQI
29th August 2025
26AQI
26AQI
30th August 2025
32AQI
32AQI
31st August 2025
33AQI
33AQI
1st September 2025
32AQI
32AQI
2nd September 2025
39AQI
39AQI
3rd September 2025
29AQI
29AQI
4th September 2025
26AQI
26AQI
5th September 2025
23AQI
23AQI
6th September 2025
29AQI
29AQI
7th September 2025
25AQI
25AQI
8th September 2025
20AQI
20AQI
9th September 2025
17AQI
17AQI
10th September 2025
18AQI
18AQI
11th September 2025
29AQI
29AQI
12th September 2025
29AQI
29AQI
13th September 2025
33AQI
33AQI
14th September 2025
23AQI
23AQI
15th September 2025
22AQI
22AQI
16th September 2025
32AQI
32AQI
17th September 2025
30AQI
30AQI
18th September 2025
35AQI
35AQI
19th September 2025
36AQI
36AQI
20th September 2025
38AQI
38AQI
21st September 2025
33AQI
33AQI
22nd September 2025
31AQI
31AQI
23rd September 2025
38AQI
38AQI
24th September 2025
45AQI
45AQI
25th September 2025
43AQI
43AQI
26th September 2025
50AQI
50AQI
27th September 2025
58AQI
58AQI
28th September 2025
55AQI
55AQI
29th September 2025
38AQI
38AQI
30th September 2025
26AQI
26AQI
1st October 2025
18AQI
18AQI
2nd October 2025
31AQI
31AQI
3rd October 2025
32AQI
32AQI
4th October 2025
52AQI
52AQI
5th October 2025
47AQI
47AQI
6th October 2025
51AQI
51AQI
7th October 2025
47AQI
47AQI
8th October 2025
51AQI
51AQI
9th October 2025
44AQI
44AQI
10th October 2025
31AQI
31AQI
11th October 2025
22AQI
22AQI
12th October 2025
38AQI
38AQI
13th October 2025
50AQI
50AQI
14th October 2025
32AQI
32AQI
15th October 2025
41AQI
41AQI
16th October 2025
49AQI
49AQI
17th October 2025
48AQI
48AQI
18th October 2025
58AQI
58AQI
19th October 2025
63AQI
63AQI
20th October 2025
42AQI
42AQI
21st October 2025
50AQI
50AQI
22nd October 2025
42AQI
42AQI
23rd October 2025
49AQI
49AQI
24th October 2025
39AQI
39AQI
25th October 2025
25AQI
25AQI
26th October 2025
36AQI
36AQI
27th October 2025
23AQI
23AQI
28th October 2025
31AQI
31AQI
29th October 2025
48AQI
48AQI
30th October 2025
49AQI
49AQI
31st October 2025
53AQI
53AQI
1st November 2025
52AQI
52AQI
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
42AQI
27AQI
25AQI
29AQI
30AQI
35AQI
23AQI
30AQI
33AQI
42AQI
52AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202532AQI
27
4
28
31
30
31
30
31
31
28
2
25
6
1
292
13
Highest AQI recorded in
November52AQI
Lowest AQI recorded in
July23AQI
202432AQI
16
1
2
12
29
31
31
28
28
3
27
3
18
13
223
19
Highest AQI recorded in
December44AQI
Lowest AQI recorded in
January19AQI
202323AQI
3
31
34
Highest AQI recorded in
December23AQI
Lowest AQI recorded in
November21AQI
202129AQI
26
4
28
31
27
1
10
122
5
Highest AQI recorded in
January36AQI
Lowest AQI recorded in
March21AQI
202048AQI
1
1
1
11
2
23
8
34
10
1
1
1
Highest AQI recorded in
October203AQI
Lowest AQI recorded in
November32AQI
Most & Least Polluted Years Over the Last 5 Years
Most Polluted Year Recorded
2020(Avg.)
48AQILeast Polluted Year Recorded
2023(Avg.)
23AQINapa Valley College's annual 2025 AQI (32) shows an average percentage change of 3.3% (worsened AQI) compared to previous years: 2020 (48), 2021 (29), 2023 (23), 2024 (32).
