Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Willows, 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+

July Air Quality Analysis

Willows, California, United States

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
19th Jul 2023
63AQI
Lowest AQI recorded on
5th Jul 2022
14AQI

Same Day Analysis (31st July):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 55 of Moderate air quality on the same day.

Day & Night AQI Trend: 30th Jul - 31st Jul 2026

Willows, California, United States

AQI
Day
Night
.

5 AM30th Jul 2026

8 PM

4 AM31st Jul 2026

Day time
Avg. Highest Time
8PM30th Jul

84AQI

Avg. Lowest Time
2PM30th Jul

42AQI

Night time
Avg. Highest Time
12AM31st Jul

70AQI

Avg. Lowest Time
5AM30th Jul

46AQI

In the last 24 hours,

Willows's AQI reached its highest point of 84 at 8 PM during the Day, while the lowest point, 42, was recorded at 2 PM during the Day between 30th Jul and 31st Jul 2026.

Day & Night AQI Trend : Jul 2026

Willows, California, United States

Jul
02nd - 03rd03rd - 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
Day
Night
2nd Jul 2026205 AMAQI
2nd Jul 2026206 AMAQI
2nd Jul 2026207 AMAQI
2nd Jul 2026208 AMAQI
2nd Jul 2026189 AMAQI
2nd Jul 20262010 AMAQI
2nd Jul 20262011 AMAQI
2nd Jul 20262012 PMAQI
2nd Jul 2026201 PMAQI
2nd Jul 2026212 PMAQI
2nd Jul 2026283 PMAQI
2nd Jul 2026284 PMAQI
2nd Jul 2026265 PMAQI
2nd Jul 2026306 PMAQI
2nd Jul 2026297 PMAQI
2nd Jul 2026268 PMAQI
2nd Jul 2026289 PMAQI
2nd Jul 20263010 PMAQI
2nd Jul 20263011 PMAQI
3rd Jul 20262812 AMAQI
3rd Jul 2026301 AMAQI
3rd Jul 2026262 AMAQI
3rd Jul 2026213 AMAQI
3rd Jul 2026224 AMAQI

24°C15/33°C

3rd Jul 2026205 AMAQI
3rd Jul 2026206 AMAQI
3rd Jul 2026167 AMAQI
3rd Jul 2026168 AMAQI
3rd Jul 2026189 AMAQI
3rd Jul 20261810 AMAQI
3rd Jul 20261911 AMAQI
3rd Jul 20262212 PMAQI
3rd Jul 2026221 PMAQI
3rd Jul 2026202 PMAQI
3rd Jul 2026243 PMAQI
3rd Jul 2026284 PMAQI
3rd Jul 2026265 PMAQI
3rd Jul 2026266 PMAQI
3rd Jul 2026277 PMAQI
3rd Jul 2026298 PMAQI
3rd Jul 2026209 PMAQI
3rd Jul 20261610 PMAQI
3rd Jul 20261611 PMAQI
4th Jul 20261812 AMAQI
4th Jul 2026181 AMAQI
4th Jul 2026152 AMAQI
4th Jul 2026143 AMAQI
4th Jul 2026164 AMAQI

25°C15/35°C

4th Jul 2026145 AMAQI
4th Jul 2026156 AMAQI
4th Jul 2026147 AMAQI
4th Jul 2026138 AMAQI
4th Jul 2026149 AMAQI
4th Jul 20261810 AMAQI
4th Jul 20261811 AMAQI
4th Jul 20261812 PMAQI
4th Jul 2026141 PMAQI
4th Jul 2026142 PMAQI
4th Jul 2026163 PMAQI
4th Jul 2026144 PMAQI
4th Jul 2026125 PMAQI
4th Jul 2026126 PMAQI
4th Jul 2026127 PMAQI
4th Jul 2026148 PMAQI
4th Jul 2026139 PMAQI
4th Jul 2026910 PMAQI
4th Jul 20261511 PMAQI
5th Jul 20261312 AMAQI
5th Jul 2026141 AMAQI
5th Jul 2026142 AMAQI
5th Jul 2026163 AMAQI
5th Jul 2026164 AMAQI

27°C16/36°C

5th Jul 2026175 AMAQI
5th Jul 2026206 AMAQI
5th Jul 2026247 AMAQI
5th Jul 2026248 AMAQI
5th Jul 2026229 AMAQI
5th Jul 20262010 AMAQI
5th Jul 20261811 AMAQI
5th Jul 20261512 PMAQI
5th Jul 2026151 PMAQI
5th Jul 2026132 PMAQI
5th Jul 2026123 PMAQI
5th Jul 2026124 PMAQI
5th Jul 2026125 PMAQI
5th Jul 2026146 PMAQI
5th Jul 2026127 PMAQI
5th Jul 2026108 PMAQI
5th Jul 2026119 PMAQI
5th Jul 20261110 PMAQI
5th Jul 20261111 PMAQI
6th Jul 20261012 AMAQI
6th Jul 2026101 AMAQI
6th Jul 2026122 AMAQI
6th Jul 2026103 AMAQI
6th Jul 2026104 AMAQI

26°C17/37°C

6th Jul 2026105 AMAQI
6th Jul 202696 AMAQI
6th Jul 2026107 AMAQI
6th Jul 2026148 AMAQI
6th Jul 2026129 AMAQI
6th Jul 20261010 AMAQI
6th Jul 20261011 AMAQI
6th Jul 20261412 PMAQI
6th Jul 2026151 PMAQI
6th Jul 2026102 PMAQI
6th Jul 2026243 PMAQI
6th Jul 2026134 PMAQI
6th Jul 2026145 PMAQI
6th Jul 2026166 PMAQI
6th Jul 2026227 PMAQI
6th Jul 2026208 PMAQI
6th Jul 2026209 PMAQI
6th Jul 20261810 PMAQI
6th Jul 20262011 PMAQI
7th Jul 20261812 AMAQI
7th Jul 2026181 AMAQI
7th Jul 2026132 AMAQI
7th Jul 2026133 AMAQI
7th Jul 2026104 AMAQI

25°C16/35°C

7th Jul 2026105 AMAQI
7th Jul 202696 AMAQI
7th Jul 2026127 AMAQI
7th Jul 2026268 AMAQI
7th Jul 2026109 AMAQI
7th Jul 2026810 AMAQI
7th Jul 20261011 AMAQI
7th Jul 20261212 PMAQI
7th Jul 2026161 PMAQI
7th Jul 2026192 PMAQI
7th Jul 2026183 PMAQI
7th Jul 2026224 PMAQI
7th Jul 2026225 PMAQI
7th Jul 2026316 PMAQI
7th Jul 2026267 PMAQI
7th Jul 2026308 PMAQI
7th Jul 2026269 PMAQI
7th Jul 20262210 PMAQI
7th Jul 20262211 PMAQI
8th Jul 20262012 AMAQI
8th Jul 2026201 AMAQI
8th Jul 2026152 AMAQI
8th Jul 2026153 AMAQI
8th Jul 2026154 AMAQI

24°C13/34°C

8th Jul 2026135 AMAQI
8th Jul 2026116 AMAQI
8th Jul 2026127 AMAQI
8th Jul 202698 AMAQI
8th Jul 2026169 AMAQI
8th Jul 20261910 AMAQI
8th Jul 20262011 AMAQI
8th Jul 20261612 PMAQI
8th Jul 2026181 PMAQI
8th Jul 2026202 PMAQI
8th Jul 2026563 PMAQI
8th Jul 2026904 PMAQI
8th Jul 2026755 PMAQI
8th Jul 2026506 PMAQI
8th Jul 2026527 PMAQI
8th Jul 2026408 PMAQI
8th Jul 2026329 PMAQI
8th Jul 20262810 PMAQI
8th Jul 20262611 PMAQI
9th Jul 20262612 AMAQI
9th Jul 2026221 AMAQI
9th Jul 2026182 AMAQI
9th Jul 2026203 AMAQI
9th Jul 2026194 AMAQI

24°C14/34°C

9th Jul 2026185 AMAQI
9th Jul 2026186 AMAQI
9th Jul 2026167 AMAQI
9th Jul 2026268 AMAQI
9th Jul 2026329 AMAQI
9th Jul 20262910 AMAQI
9th Jul 20263611 AMAQI
9th Jul 20262812 PMAQI
9th Jul 2026311 PMAQI
9th Jul 2026782 PMAQI
9th Jul 2026683 PMAQI
9th Jul 2026564 PMAQI
9th Jul 2026425 PMAQI
9th Jul 2026346 PMAQI
9th Jul 2026287 PMAQI
9th Jul 2026298 PMAQI
9th Jul 2026249 PMAQI
9th Jul 20262410 PMAQI
9th Jul 20262211 PMAQI
10th Jul 20262212 AMAQI
10th Jul 2026221 AMAQI
10th Jul 2026202 AMAQI
10th Jul 2026183 AMAQI
10th Jul 2026204 AMAQI

27°C16/38°C

10th Jul 2026185 AMAQI
10th Jul 2026176 AMAQI
10th Jul 2026187 AMAQI
10th Jul 2026198 AMAQI
10th Jul 2026269 AMAQI
10th Jul 20262610 AMAQI
10th Jul 20262411 AMAQI
10th Jul 20262612 PMAQI
10th Jul 2026281 PMAQI
10th Jul 2026382 PMAQI
10th Jul 2026363 PMAQI
10th Jul 2026534 PMAQI
10th Jul 2026545 PMAQI
10th Jul 2026526 PMAQI
10th Jul 2026367 PMAQI
10th Jul 2026468 PMAQI
10th Jul 2026389 PMAQI
10th Jul 20263010 PMAQI
10th Jul 20262411 PMAQI
11th Jul 20262212 AMAQI
11th Jul 2026211 AMAQI
11th Jul 2026192 AMAQI
11th Jul 2026193 AMAQI
11th Jul 2026204 AMAQI

27°C17/37°C

11th Jul 2026185 AMAQI
11th Jul 2026156 AMAQI
11th Jul 2026127 AMAQI
11th Jul 2026128 AMAQI
11th Jul 2026129 AMAQI
11th Jul 20261210 AMAQI
11th Jul 20261611 AMAQI
11th Jul 20262012 PMAQI
11th Jul 2026191 PMAQI
11th Jul 2026162 PMAQI
11th Jul 2026163 PMAQI
11th Jul 2026184 PMAQI
11th Jul 2026165 PMAQI
11th Jul 2026186 PMAQI
11th Jul 2026197 PMAQI
11th Jul 2026208 PMAQI
11th Jul 2026199 PMAQI
11th Jul 20261810 PMAQI
11th Jul 20262011 PMAQI
12th Jul 20262012 AMAQI
12th Jul 2026181 AMAQI
12th Jul 2026202 AMAQI
12th Jul 2026183 AMAQI
12th Jul 2026174 AMAQI

26°C15/36°C

12th Jul 2026175 AMAQI
12th Jul 2026126 AMAQI
12th Jul 2026117 AMAQI
12th Jul 2026148 AMAQI
12th Jul 2026169 AMAQI
12th Jul 20261010 AMAQI
12th Jul 20261011 AMAQI
12th Jul 20261212 PMAQI
12th Jul 2026111 PMAQI
12th Jul 2026112 PMAQI
12th Jul 2026103 PMAQI
12th Jul 2026124 PMAQI
12th Jul 2026115 PMAQI
12th Jul 2026116 PMAQI
12th Jul 2026127 PMAQI
12th Jul 2026138 PMAQI
12th Jul 2026149 PMAQI
12th Jul 20261410 PMAQI
12th Jul 20261511 PMAQI
13th Jul 20261712 AMAQI
13th Jul 2026161 AMAQI
13th Jul 2026162 AMAQI
13th Jul 2026143 AMAQI
13th Jul 2026114 AMAQI

27°C20/37°C

13th Jul 2026105 AMAQI
13th Jul 2026106 AMAQI
13th Jul 2026117 AMAQI
13th Jul 2026168 AMAQI
13th Jul 2026169 AMAQI
13th Jul 20261810 AMAQI
13th Jul 20261811 AMAQI
13th Jul 20261812 PMAQI
13th Jul 2026201 PMAQI
13th Jul 2026322 PMAQI
13th Jul 2026323 PMAQI
13th Jul 2026324 PMAQI
13th Jul 2026345 PMAQI
13th Jul 2026246 PMAQI
13th Jul 2026267 PMAQI
13th Jul 2026228 PMAQI
13th Jul 2026249 PMAQI
13th Jul 20262410 PMAQI
13th Jul 20263011 PMAQI
14th Jul 20262812 AMAQI
14th Jul 2026281 AMAQI
14th Jul 2026222 AMAQI
14th Jul 2026203 AMAQI
14th Jul 2026244 AMAQI

29°C19/38°C

14th Jul 2026215 AMAQI
14th Jul 2026206 AMAQI
14th Jul 2026227 AMAQI
14th Jul 2026208 AMAQI
14th Jul 2026289 AMAQI
14th Jul 20262610 AMAQI
14th Jul 20262611 AMAQI
14th Jul 20263212 PMAQI
14th Jul 2026321 PMAQI
14th Jul 2026262 PMAQI
14th Jul 2026253 PMAQI
14th Jul 2026264 PMAQI
14th Jul 2026205 PMAQI
14th Jul 2026226 PMAQI
14th Jul 2026207 PMAQI
14th Jul 2026188 PMAQI
14th Jul 2026199 PMAQI
14th Jul 20263010 PMAQI
14th Jul 20263011 PMAQI
15th Jul 20262612 AMAQI
15th Jul 2026201 AMAQI
15th Jul 2026162 AMAQI
15th Jul 2026163 AMAQI
15th Jul 2026164 AMAQI

31°C21/39°C

15th Jul 2026155 AMAQI
15th Jul 2026136 AMAQI
15th Jul 2026147 AMAQI
15th Jul 2026238 AMAQI
15th Jul 2026269 AMAQI
15th Jul 20262410 AMAQI
15th Jul 20262411 AMAQI
15th Jul 20262612 PMAQI
15th Jul 2026261 PMAQI
15th Jul 2026282 PMAQI
15th Jul 2026243 PMAQI
15th Jul 2026214 PMAQI
15th Jul 2026225 PMAQI
15th Jul 2026226 PMAQI
15th Jul 2026227 PMAQI
15th Jul 2026218 PMAQI
15th Jul 2026209 PMAQI
15th Jul 20262110 PMAQI
15th Jul 20261911 PMAQI
16th Jul 20261812 AMAQI
16th Jul 2026171 AMAQI
16th Jul 2026142 AMAQI
16th Jul 2026133 AMAQI
16th Jul 2026104 AMAQI

31°C21/40°C

16th Jul 2026145 AMAQI
16th Jul 2026146 AMAQI
16th Jul 2026147 AMAQI
16th Jul 2026168 AMAQI
16th Jul 2026189 AMAQI
16th Jul 20261710 AMAQI
16th Jul 20261511 AMAQI
16th Jul 20261812 PMAQI
16th Jul 2026201 PMAQI
16th Jul 2026222 PMAQI
16th Jul 2026243 PMAQI
16th Jul 2026264 PMAQI
16th Jul 2026245 PMAQI
16th Jul 2026286 PMAQI
16th Jul 2026257 PMAQI
16th Jul 2026258 PMAQI
16th Jul 2026229 PMAQI
16th Jul 20262210 PMAQI
16th Jul 20262011 PMAQI
17th Jul 20262412 AMAQI
17th Jul 2026221 AMAQI
17th Jul 2026362 AMAQI
17th Jul 2026423 AMAQI
17th Jul 2026464 AMAQI

27°C17/36°C

17th Jul 2026405 AMAQI
17th Jul 2026486 AMAQI
17th Jul 2026467 AMAQI
17th Jul 2026328 AMAQI
17th Jul 2026449 AMAQI
17th Jul 20264210 AMAQI
17th Jul 20264411 AMAQI
17th Jul 20264212 PMAQI
17th Jul 2026441 PMAQI
17th Jul 2026402 PMAQI
17th Jul 2026523 PMAQI
17th Jul 2026574 PMAQI
17th Jul 2026535 PMAQI
17th Jul 2026486 PMAQI
17th Jul 2026387 PMAQI
17th Jul 2026568 PMAQI
17th Jul 2026569 PMAQI
17th Jul 20264610 PMAQI
17th Jul 20264611 PMAQI
18th Jul 20264412 AMAQI
18th Jul 2026441 AMAQI
18th Jul 2026502 AMAQI
18th Jul 2026503 AMAQI
18th Jul 2026494 AMAQI

25°C15/35°C

18th Jul 2026425 AMAQI
18th Jul 2026466 AMAQI
18th Jul 2026437 AMAQI
18th Jul 2026368 AMAQI
18th Jul 2026469 AMAQI
18th Jul 20265010 AMAQI
18th Jul 20264011 AMAQI
18th Jul 20265412 PMAQI
18th Jul 2026581 PMAQI
18th Jul 2026422 PMAQI
18th Jul 2026523 PMAQI
18th Jul 2026404 PMAQI
18th Jul 2026605 PMAQI
18th Jul 2026546 PMAQI
18th Jul 2026547 PMAQI
18th Jul 2026468 PMAQI
18th Jul 2026569 PMAQI
18th Jul 20265210 PMAQI
18th Jul 20266311 PMAQI
19th Jul 20263612 AMAQI
19th Jul 2026361 AMAQI
19th Jul 2026382 AMAQI
19th Jul 2026363 AMAQI
19th Jul 2026484 AMAQI

25°C15/35°C

19th Jul 2026545 AMAQI
19th Jul 2026256 AMAQI
19th Jul 2026467 AMAQI
19th Jul 2026388 AMAQI
19th Jul 2026239 AMAQI
19th Jul 20265210 AMAQI
19th Jul 20264611 AMAQI
19th Jul 20265012 PMAQI
19th Jul 2026421 PMAQI
19th Jul 2026382 PMAQI
19th Jul 2026403 PMAQI
19th Jul 2026504 PMAQI
19th Jul 2026465 PMAQI
19th Jul 2026296 PMAQI
19th Jul 2026457 PMAQI
19th Jul 2026418 PMAQI
19th Jul 2026469 PMAQI
19th Jul 20265010 PMAQI
19th Jul 20265111 PMAQI
20th Jul 20264612 AMAQI
20th Jul 2026481 AMAQI
20th Jul 2026492 AMAQI
20th Jul 2026513 AMAQI
20th Jul 2026474 AMAQI

26°C15/36°C

20th Jul 2026425 AMAQI
20th Jul 2026386 AMAQI
20th Jul 2026427 AMAQI
20th Jul 2026448 AMAQI
20th Jul 2026429 AMAQI
20th Jul 20264610 AMAQI
20th Jul 20264611 AMAQI
20th Jul 20265712 PMAQI
20th Jul 2026601 PMAQI
20th Jul 2026622 PMAQI
20th Jul 2026643 PMAQI
20th Jul 2026514 PMAQI
20th Jul 2026365 PMAQI
20th Jul 2026466 PMAQI
20th Jul 2026427 PMAQI
20th Jul 2026519 PMAQI
20th Jul 20263610 PMAQI
20th Jul 20264611 PMAQI
21st Jul 20262412 AMAQI
21st Jul 2026361 AMAQI
21st Jul 2026462 AMAQI
21st Jul 2026203 AMAQI
21st Jul 2026184 AMAQI

26°C19/35°C

21st Jul 2026425 AMAQI
21st Jul 2026426 AMAQI
21st Jul 2026427 AMAQI
21st Jul 2026428 AMAQI
21st Jul 2026509 AMAQI
21st Jul 20264610 AMAQI
21st Jul 20262111 AMAQI
21st Jul 20264812 PMAQI
21st Jul 2026481 PMAQI
21st Jul 2026462 PMAQI
21st Jul 2026483 PMAQI
21st Jul 2026444 PMAQI
21st Jul 2026505 PMAQI
21st Jul 2026516 PMAQI
21st Jul 2026467 PMAQI
21st Jul 2026538 PMAQI
21st Jul 2026549 PMAQI
21st Jul 20266010 PMAQI
21st Jul 20265711 PMAQI
22nd Jul 20265012 AMAQI
22nd Jul 2026361 AMAQI
22nd Jul 2026462 AMAQI
22nd Jul 2026503 AMAQI
22nd Jul 2026464 AMAQI

29°C20/39°C

22nd Jul 2026505 AMAQI
22nd Jul 2026466 AMAQI
22nd Jul 2026487 AMAQI
22nd Jul 2026468 AMAQI
22nd Jul 2026469 AMAQI
22nd Jul 20264610 AMAQI
22nd Jul 20265011 AMAQI
22nd Jul 20265212 PMAQI
22nd Jul 2026501 PMAQI
22nd Jul 2026372 PMAQI
22nd Jul 2026563 PMAQI
22nd Jul 2026604 PMAQI
22nd Jul 2026425 PMAQI
22nd Jul 2026316 PMAQI
22nd Jul 2026207 PMAQI
22nd Jul 2026168 PMAQI
22nd Jul 2026169 PMAQI
22nd Jul 20265010 PMAQI
22nd Jul 20264811 PMAQI
23rd Jul 20264312 AMAQI
23rd Jul 2026411 AMAQI
23rd Jul 2026542 AMAQI
23rd Jul 2026433 AMAQI
23rd Jul 2026474 AMAQI

27°C21/34°C

23rd Jul 2026375 AMAQI
23rd Jul 2026406 AMAQI
23rd Jul 2026387 AMAQI
23rd Jul 2026508 AMAQI
23rd Jul 2026429 AMAQI
23rd Jul 20264310 AMAQI
23rd Jul 20261411 AMAQI
23rd Jul 20264412 PMAQI
23rd Jul 2026561 PMAQI
23rd Jul 2026652 PMAQI
23rd Jul 2026473 PMAQI
23rd Jul 2026234 PMAQI
23rd Jul 2026425 PMAQI
23rd Jul 2026386 PMAQI
23rd Jul 2026257 PMAQI
23rd Jul 2026428 PMAQI
23rd Jul 2026679 PMAQI
23rd Jul 20265610 PMAQI
23rd Jul 20265211 PMAQI
24th Jul 20264012 AMAQI
24th Jul 2026521 AMAQI
24th Jul 2026502 AMAQI
24th Jul 2026563 AMAQI
24th Jul 2026564 AMAQI

26°C16/36°C

24th Jul 2026605 AMAQI
24th Jul 2026546 AMAQI
24th Jul 2026427 AMAQI
24th Jul 2026748 AMAQI
24th Jul 2026669 AMAQI
24th Jul 20265010 AMAQI
24th Jul 20266011 AMAQI
24th Jul 20265712 PMAQI
24th Jul 2026381 PMAQI
24th Jul 2026552 PMAQI
24th Jul 2026523 PMAQI
24th Jul 2026514 PMAQI
24th Jul 2026395 PMAQI
24th Jul 2026246 PMAQI
24th Jul 2026387 PMAQI
24th Jul 2026558 PMAQI
24th Jul 2026509 PMAQI
24th Jul 20264410 PMAQI
24th Jul 20265411 PMAQI
25th Jul 20265012 AMAQI
25th Jul 2026501 AMAQI
25th Jul 2026462 AMAQI
25th Jul 2026483 AMAQI
25th Jul 2026424 AMAQI

26°C16/37°C

25th Jul 2026565 AMAQI
25th Jul 2026486 AMAQI
25th Jul 2026467 AMAQI
25th Jul 2026468 AMAQI
25th Jul 2026469 AMAQI
25th Jul 20264610 AMAQI
25th Jul 20264811 AMAQI
25th Jul 20263612 PMAQI
25th Jul 2026461 PMAQI
25th Jul 2026342 PMAQI
25th Jul 2026503 PMAQI
25th Jul 2026464 PMAQI
25th Jul 2026345 PMAQI
25th Jul 2026256 PMAQI
25th Jul 2026467 PMAQI
25th Jul 2026468 PMAQI
25th Jul 2026469 PMAQI
25th Jul 20264210 PMAQI
25th Jul 20261811 PMAQI
26th Jul 20264412 AMAQI
26th Jul 2026421 AMAQI
26th Jul 2026462 AMAQI
26th Jul 2026503 AMAQI
26th Jul 2026384 AMAQI

26°C15/36°C

26th Jul 2026485 AMAQI
26th Jul 2026506 AMAQI
26th Jul 2026487 AMAQI
26th Jul 2026468 AMAQI
26th Jul 2026119 AMAQI
26th Jul 20264210 AMAQI
26th Jul 20264611 AMAQI
26th Jul 20264612 PMAQI
26th Jul 2026341 PMAQI
26th Jul 2026422 PMAQI
26th Jul 2026463 PMAQI
26th Jul 2026424 PMAQI
26th Jul 2026345 PMAQI
26th Jul 2026386 PMAQI
26th Jul 2026427 PMAQI
26th Jul 2026348 PMAQI
26th Jul 2026509 PMAQI
26th Jul 20264610 PMAQI
26th Jul 20265511 PMAQI
27th Jul 20266212 AMAQI
27th Jul 2026531 AMAQI
27th Jul 2026462 AMAQI
27th Jul 2026483 AMAQI
27th Jul 2026384 AMAQI

26°C16/37°C

27th Jul 2026465 AMAQI
27th Jul 2026446 AMAQI
27th Jul 2026447 AMAQI
27th Jul 2026488 AMAQI
27th Jul 2026469 AMAQI
27th Jul 20265010 AMAQI
27th Jul 20265311 AMAQI
27th Jul 20265412 PMAQI
27th Jul 2026601 PMAQI
27th Jul 2026462 PMAQI
27th Jul 2026563 PMAQI
27th Jul 2026464 PMAQI
27th Jul 2026535 PMAQI
27th Jul 2026296 PMAQI
27th Jul 2026277 PMAQI
27th Jul 2026368 PMAQI
27th Jul 2026469 PMAQI
27th Jul 20263410 PMAQI
27th Jul 20264611 PMAQI
28th Jul 20264612 AMAQI
28th Jul 2026461 AMAQI
28th Jul 2026502 AMAQI
28th Jul 2026463 AMAQI
28th Jul 2026424 AMAQI

26°C16/36°C

28th Jul 2026465 AMAQI
28th Jul 2026406 AMAQI
28th Jul 2026527 AMAQI
28th Jul 2026468 AMAQI
28th Jul 2026469 AMAQI
28th Jul 20264610 AMAQI
28th Jul 20265211 AMAQI
28th Jul 20264412 PMAQI
28th Jul 2026421 PMAQI
28th Jul 2026402 PMAQI
28th Jul 2026483 PMAQI
28th Jul 2026384 PMAQI
28th Jul 2026345 PMAQI
28th Jul 2026406 PMAQI
28th Jul 2026447 PMAQI
28th Jul 2026408 PMAQI
28th Jul 2026499 PMAQI
28th Jul 20264810 PMAQI
28th Jul 20264711 PMAQI
29th Jul 20264612 AMAQI
29th Jul 2026491 AMAQI
29th Jul 2026522 AMAQI
29th Jul 2026503 AMAQI
29th Jul 2026384 AMAQI

27°C15/37°C

29th Jul 2026465 AMAQI
29th Jul 2026506 AMAQI
29th Jul 2026497 AMAQI
29th Jul 2026528 AMAQI
29th Jul 2026509 AMAQI
29th Jul 20263810 AMAQI
29th Jul 20264411 AMAQI
29th Jul 20264212 PMAQI
29th Jul 2026441 PMAQI
29th Jul 2026522 PMAQI
29th Jul 2026523 PMAQI
29th Jul 2026444 PMAQI
29th Jul 2026425 PMAQI
29th Jul 2026506 PMAQI
29th Jul 2026507 PMAQI
29th Jul 2026428 PMAQI
29th Jul 2026279 PMAQI
29th Jul 20264610 PMAQI
29th Jul 20262411 PMAQI
30th Jul 20264412 AMAQI
30th Jul 2026481 AMAQI
30th Jul 2026422 AMAQI
30th Jul 2026463 AMAQI
30th Jul 2026384 AMAQI

28°C18/37°C

30th Jul 2026465 AMAQI
30th Jul 2026446 AMAQI
30th Jul 2026467 AMAQI
30th Jul 2026468 AMAQI
30th Jul 2026519 AMAQI
30th Jul 20264410 AMAQI
30th Jul 20264211 AMAQI
30th Jul 20264212 PMAQI
30th Jul 2026481 PMAQI
30th Jul 2026422 PMAQI
30th Jul 2026513 PMAQI
30th Jul 2026464 PMAQI
30th Jul 2026495 PMAQI
30th Jul 2026486 PMAQI
30th Jul 2026547 PMAQI
30th Jul 2026848 PMAQI
30th Jul 2026589 PMAQI
30th Jul 20265510 PMAQI
30th Jul 20266011 PMAQI
31st Jul 20267012 AMAQI
31st Jul 2026661 AMAQI
31st Jul 2026522 AMAQI
31st Jul 2026583 AMAQI
31st Jul 2026504 AMAQI

27°C18/37°C

31st Jul 2026545 AMAQI
5 AM
31st Jul 2026556 AMAQI
31st Jul 2026517 AMAQI
31st Jul 2026528 AMAQI
31st Jul 2026599 AMAQI
31st Jul 20266010 AMAQI
31st Jul 20265411 AMAQI
31st Jul 20265812 PMAQI
12 PM
31st Jul 2026571 PMAQI
31st Jul 2026582 PMAQI
31st Jul 2026553 PMAQI
31st Jul 2026564 PMAQI
31st Jul 2026465 PMAQI
31st Jul 2026526 PMAQI
31st Jul 2026507 PMAQI
31st Jul 2026448 PMAQI
8 PM
31st Jul 2026509 PMAQI
31st Jul 20265910 PMAQI
31st Jul 20265311 PMAQI
12 AM
4 AM

28°C16/38°C

Day time
Avg. Highest Time
3 PM - 4 PM

39AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
6 AM - 7 AM

30AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 3 PM to 4 PM (Avg. 39), while the lowest AQI was between 6 AM to 7 AM (Avg. 30).
Night time
Avg. Highest Time
9 PM - 11 PM

35AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
4 AM

30AQI

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. 35), while the lowest AQI was between 4 AM to 4 AM (Avg. 30).

2026 Days Vs Air Quality

Willows, California, United States

2026

98%

204

2%

5

Total number of days with different AQI categories in last 212 days in 2026 (153 days remaining)

Good
204 Days
Moderate
5 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 98%

Health Risk Level:

Very Low

In 2026, 98% of 212 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

Willows, California, 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)
2nd January 2026
15AQI (US)
3rd January 2026
11AQI (US)
4th January 2026
11AQI (US)
5th January 2026
18AQI (US)
6th January 2026
17AQI (US)
7th January 2026
17AQI (US)
8th January 2026
16AQI (US)
9th January 2026
12AQI (US)
10th January 2026
33AQI (US)
11th January 2026
31AQI (US)
12th January 2026
31AQI (US)
13th January 2026
38AQI (US)
14th January 2026
40AQI (US)
15th January 2026
46AQI (US)
16th January 2026
30AQI (US)
17th January 2026
42AQI (US)
18th January 2026
36AQI (US)
19th January 2026
35AQI (US)
20th January 2026
29AQI (US)
21st January 2026
42AQI (US)
22nd January 2026
32AQI (US)
23rd January 2026
30AQI (US)
24th January 2026
34AQI (US)
25th January 2026
27AQI (US)
26th January 2026
24AQI (US)
27th January 2026
23AQI (US)
28th January 2026
29AQI (US)
29th January 2026
33AQI (US)
30th January 2026
42AQI (US)
31st January 2026
23AQI (US)
1st February 2026
29AQI (US)
2nd February 2026
28AQI (US)
3rd February 2026
25AQI (US)
4th February 2026
23AQI (US)
5th February 2026
28AQI (US)
6th February 2026
31AQI (US)
7th February 2026
26AQI (US)
8th February 2026
27AQI (US)
9th February 2026
37AQI (US)
10th February 2026
26AQI (US)
11th February 2026
35AQI (US)
12th February 2026
40AQI (US)
13th February 2026
30AQI (US)
14th February 2026
23AQI (US)
15th February 2026
24AQI (US)
16th February 2026
42AQI (US)
17th February 2026
46AQI (US)
18th February 2026
40AQI (US)
19th February 2026
41AQI (US)
20th February 2026
28AQI (US)
21st February 2026
26AQI (US)
22nd February 2026
24AQI (US)
23rd February 2026
25AQI (US)
24th February 2026
27AQI (US)
25th February 2026
39AQI (US)
26th February 2026
25AQI (US)
27th February 2026
18AQI (US)
28th February 2026
29AQI (US)
1st March 2026
27AQI (US)
2nd March 2026
39AQI (US)
3rd March 2026
20AQI (US)
4th March 2026
21AQI (US)
5th March 2026
28AQI (US)
6th March 2026
24AQI (US)
7th March 2026
32AQI (US)
8th March 2026
19AQI (US)
9th March 2026
16AQI (US)
10th March 2026
23AQI (US)
11th March 2026
22AQI (US)
12th March 2026
25AQI (US)
13th March 2026
21AQI (US)
14th March 2026
18AQI (US)
15th March 2026
17AQI (US)
16th March 2026
18AQI (US)
17th March 2026
25AQI (US)
18th March 2026
18AQI (US)
19th March 2026
20AQI (US)
20th March 2026
26AQI (US)
21st March 2026
16AQI (US)
22nd March 2026
15AQI (US)
23rd March 2026
23AQI (US)
24th March 2026
29AQI (US)
25th March 2026
26AQI (US)
26th March 2026
29AQI (US)
27th March 2026
14AQI (US)
28th March 2026
18AQI (US)
29th March 2026
15AQI (US)
30th March 2026
26AQI (US)
31st March 2026
19AQI (US)
1st April 2026
24AQI (US)
2nd April 2026
19AQI (US)
3rd April 2026
19AQI (US)
4th April 2026
23AQI (US)
5th April 2026
23AQI (US)
6th April 2026
26AQI (US)
7th April 2026
38AQI (US)
8th April 2026
44AQI (US)
9th April 2026
24AQI (US)
10th April 2026
28AQI (US)
11th April 2026
32AQI (US)
12th April 2026
29AQI (US)
13th April 2026
32AQI (US)
14th April 2026
22AQI (US)
15th April 2026
16AQI (US)
16th April 2026
19AQI (US)
17th April 2026
18th April 2026
21AQI (US)
19th April 2026
20AQI (US)
20th April 2026
16AQI (US)
21st April 2026
25AQI (US)
22nd April 2026
23rd April 2026
22AQI (US)
24th April 2026
14AQI (US)
25th April 2026
13AQI (US)
26th April 2026
14AQI (US)
27th April 2026
13AQI (US)
28th April 2026
15AQI (US)
29th April 2026
16AQI (US)
30th April 2026
17AQI (US)
1st May 2026
28AQI (US)
2nd May 2026
30AQI (US)
3rd May 2026
24AQI (US)
4th May 2026
22AQI (US)
5th May 2026
29AQI (US)
6th May 2026
22AQI (US)
7th May 2026
27AQI (US)
8th May 2026
42AQI (US)
9th May 2026
10th May 2026
31AQI (US)
11th May 2026
30AQI (US)
12th May 2026
40AQI (US)
13th May 2026
28AQI (US)
14th May 2026
25AQI (US)
15th May 2026
37AQI (US)
16th May 2026
52AQI (US)
17th May 2026
56AQI (US)
18th May 2026
48AQI (US)
19th May 2026
48AQI (US)
20th May 2026
47AQI (US)
21st May 2026
46AQI (US)
22nd May 2026
58AQI (US)
23rd May 2026
48AQI (US)
24th May 2026
43AQI (US)
25th May 2026
43AQI (US)
26th May 2026
18AQI (US)
27th May 2026
17AQI (US)
28th May 2026
16AQI (US)
29th May 2026
12AQI (US)
30th May 2026
13AQI (US)
31st May 2026
16AQI (US)
1st June 2026
15AQI (US)
2nd June 2026
18AQI (US)
3rd June 2026
19AQI (US)
4th June 2026
13AQI (US)
5th June 2026
15AQI (US)
6th June 2026
14AQI (US)
7th June 2026
12AQI (US)
8th June 2026
16AQI (US)
9th June 2026
18AQI (US)
10th June 2026
14AQI (US)
11th June 2026
17AQI (US)
12th June 2026
15AQI (US)
13th June 2026
18AQI (US)
14th June 2026
15AQI (US)
15th June 2026
22AQI (US)
16th June 2026
23AQI (US)
17th June 2026
20AQI (US)
18th June 2026
23AQI (US)
19th June 2026
14AQI (US)
20th June 2026
13AQI (US)
21st June 2026
11AQI (US)
22nd June 2026
16AQI (US)
23rd June 2026
20AQI (US)
24th June 2026
18AQI (US)
25th June 2026
19AQI (US)
26th June 2026
22AQI (US)
27th June 2026
20AQI (US)
28th June 2026
16AQI (US)
29th June 2026
13AQI (US)
30th June 2026
16AQI (US)
1st July 2026
22AQI (US)
2nd July 2026
24AQI (US)
3rd July 2026
22AQI (US)
4th July 2026
15AQI (US)
5th July 2026
15AQI (US)
6th July 2026
14AQI (US)
7th July 2026
18AQI (US)
8th July 2026
29AQI (US)
9th July 2026
31AQI (US)
10th July 2026
30AQI (US)
11th July 2026
17AQI (US)
12th July 2026
14AQI (US)
13th July 2026
20AQI (US)
14th July 2026
24AQI (US)
15th July 2026
21AQI (US)
16th July 2026
19AQI (US)
17th July 2026
44AQI (US)
18th July 2026
49AQI (US)
19th July 2026
42AQI (US)
20th July 2026
48AQI (US)
21st July 2026
43AQI (US)
22nd July 2026
43AQI (US)
23rd July 2026
44AQI (US)
24th July 2026
51AQI (US)
25th July 2026
43AQI (US)
26th July 2026
42AQI (US)
27th July 2026
46AQI (US)
28th July 2026
45AQI (US)
29th July 2026
45AQI (US)
30th July 2026
49AQI (US)
31st July 2026
55AQI (US)
1st August 2026
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
6th August 2026
7th August 2026
8th August 2026
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

28AQI (US)

30AQI (US)

22AQI (US)

22AQI (US)

33AQI (US)

17AQI (US)

33AQI (US)

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202627AQI (US)

31
28
31
28
27
3
30
29
2
204
5

Highest AQI (US) recorded in

May

33AQI (US)

Lowest AQI (US) recorded in

June

17AQI (US)

202534AQI (US)

27
4
28
31
30
31
30
28
3
30
1
25
5
25
6
27
3
27
4
339
26

Highest AQI (US) recorded in

September

41AQI (US)

Lowest AQI (US) recorded in

March

24AQI (US)

202433AQI (US)

31
29
31
30
30
1
27
2
30
1
29
2
26
4
22
9
27
3
22
9
334
31

Highest AQI (US) recorded in

October

41AQI (US)

Lowest AQI (US) recorded in

March

25AQI (US)

202353AQI (US)

23
2
1
5
25
3
31
27
1
31
23
1
6
25
6
26
5
26
4
21
3
7
25
4
30
1
313
29
2
5
13

Highest AQI (US) recorded in

October

129AQI (US)

Lowest AQI (US) recorded in

March

29AQI (US)

202232AQI (US)

29
22
30
1
24
1
27
30
20
1
24
3
2
24
7
23
1
26
5
280
18
2

Highest AQI (US) recorded in

August

41AQI (US)

Lowest AQI (US) recorded in

January

27AQI (US)

202141AQI (US)

23
6
27
1
30
1
27
3
31
30
25
6
9
8
7
4
13
14
3
28
3
10
27
4
280
46
10
4

Highest AQI (US) recorded in

August

87AQI (US)

Lowest AQI (US) recorded in

November

20AQI (US)

202056AQI (US)

13
17
3
16
1
29
1
26
3
16
6
5
4
2
13
5
9
1
11
15
2
3
19
11
22
9
171
62
12
16
1

Highest AQI (US) recorded in

September

116AQI (US)

Lowest AQI (US) recorded in

March

29AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2020(Avg.)
56AQI (US)
Least Polluted Year Recorded
2026(Avg.)
27AQI (US)

Willows's annual 2026 AQI (US) (27) shows an average percentage change of -31.5% (improved AQI (US)) compared to previous years: 2020 (56), 2021 (41), 2022 (32), 2023 (53), 2024 (33), 2025 (34).