Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Rio Vista Ys, Rio Vista, 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

Rio Vista Ys, Rio Vista, California, United States

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
18th Jul 2023
72AQI
Lowest AQI recorded on
4th Jul 2022
11AQI

Same Day Analysis (12th July):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 13 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.

Day & Night AQI Trend: 12th Jul - 13th Jul 2026

Rio Vista Ys, Rio Vista, California, United States

AQI
Day
Night
.

5 AM12th Jul 2026

8 PM

4 AM13th Jul 2026

Day time
Avg. Highest Time
4PM12th Jul

16AQI

Avg. Lowest Time
8AM12th Jul

10AQI

Night time
Avg. Highest Time
1AM13th Jul

17AQI

Avg. Lowest Time
3AM13th Jul

13AQI

In the last 24 hours,

Rio Vista Ys's AQI reached its highest point of 17 at 1 AM during the Night, while the lowest point, 10, was recorded at 8 AM during the Day between 12th Jul and 13th Jul 2026.

Day & Night AQI Trend : Jun - Jul 2026

Rio Vista Ys, Rio Vista, California, United States

JunJul
14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th
Day
Night
14th Jun 2026105 AMAQI
14th Jun 2026106 AMAQI
14th Jun 2026147 AMAQI
14th Jun 2026208 AMAQI
14th Jun 2026219 AMAQI
14th Jun 20261010 AMAQI
14th Jun 20261411 AMAQI
14th Jun 2026912 PMAQI
14th Jun 2026121 PMAQI
14th Jun 2026112 PMAQI
14th Jun 2026103 PMAQI
14th Jun 202684 PMAQI
14th Jun 2026115 PMAQI
14th Jun 202696 PMAQI
14th Jun 2026117 PMAQI
14th Jun 2026118 PMAQI
14th Jun 2026169 PMAQI
14th Jun 20261810 PMAQI
14th Jun 20261611 PMAQI
15th Jun 20261412 AMAQI
15th Jun 2026121 AMAQI
15th Jun 2026122 AMAQI
15th Jun 2026123 AMAQI
15th Jun 2026104 AMAQI

23°C15/35°C

15th Jun 2026505 AMAQI
15th Jun 2026326 AMAQI
15th Jun 2026207 AMAQI
15th Jun 2026168 AMAQI
15th Jun 2026129 AMAQI
15th Jun 20261410 AMAQI
15th Jun 20261311 AMAQI
15th Jun 20261412 PMAQI
15th Jun 2026161 PMAQI
15th Jun 2026172 PMAQI
15th Jun 2026223 PMAQI
15th Jun 2026274 PMAQI
15th Jun 2026225 PMAQI
15th Jun 2026226 PMAQI
15th Jun 2026207 PMAQI
15th Jun 2026228 PMAQI
15th Jun 2026229 PMAQI
15th Jun 20261610 PMAQI
15th Jun 20261611 PMAQI
16th Jun 20261212 AMAQI
16th Jun 2026101 AMAQI
16th Jun 2026122 AMAQI
16th Jun 2026103 AMAQI
16th Jun 2026124 AMAQI

22°C15/33°C

16th Jun 2026105 AMAQI
16th Jun 202696 AMAQI
16th Jun 2026187 AMAQI
16th Jun 2026178 AMAQI
16th Jun 2026129 AMAQI
16th Jun 20261810 AMAQI
16th Jun 20261611 AMAQI
16th Jun 20261812 PMAQI
16th Jun 2026201 PMAQI
16th Jun 2026162 PMAQI
16th Jun 2026153 PMAQI
16th Jun 2026134 PMAQI
16th Jun 2026145 PMAQI
16th Jun 2026176 PMAQI
16th Jun 2026187 PMAQI
16th Jun 2026168 PMAQI
16th Jun 2026179 PMAQI
16th Jun 20261610 PMAQI
16th Jun 20261611 PMAQI
17th Jun 20261212 AMAQI
17th Jun 2026141 AMAQI
17th Jun 2026102 AMAQI
17th Jun 202683 AMAQI
17th Jun 2026224 AMAQI

22°C15/32°C

17th Jun 202685 AMAQI
17th Jun 2026246 AMAQI
17th Jun 2026287 AMAQI
17th Jun 2026288 AMAQI
17th Jun 202689 AMAQI
17th Jun 20261410 AMAQI
17th Jun 20261411 AMAQI
17th Jun 20261412 PMAQI
17th Jun 2026121 PMAQI
17th Jun 2026142 PMAQI
17th Jun 2026143 PMAQI
17th Jun 2026124 PMAQI
17th Jun 2026145 PMAQI
17th Jun 2026156 PMAQI
17th Jun 2026167 PMAQI
17th Jun 2026188 PMAQI
17th Jun 2026189 PMAQI
17th Jun 20261810 PMAQI
17th Jun 20261611 PMAQI
18th Jun 20261412 AMAQI
18th Jun 2026111 AMAQI
18th Jun 2026122 AMAQI
18th Jun 2026103 AMAQI
18th Jun 202684 AMAQI

21°C15/31°C

18th Jun 2026245 AMAQI
18th Jun 2026256 AMAQI
18th Jun 2026267 AMAQI
18th Jun 2026148 AMAQI
18th Jun 2026279 AMAQI
18th Jun 20262910 AMAQI
18th Jun 20261211 AMAQI
18th Jun 20261012 PMAQI
18th Jun 2026121 PMAQI
18th Jun 2026132 PMAQI
18th Jun 2026143 PMAQI
18th Jun 2026124 PMAQI
18th Jun 2026185 PMAQI
18th Jun 2026206 PMAQI
18th Jun 2026247 PMAQI
18th Jun 2026238 PMAQI
18th Jun 2026229 PMAQI
18th Jun 20261510 PMAQI
18th Jun 20261211 PMAQI
19th Jun 20261012 AMAQI
19th Jun 202681 AMAQI
19th Jun 202682 AMAQI
19th Jun 2026223 AMAQI
19th Jun 2026214 AMAQI

20°C14/29°C

19th Jun 2026205 AMAQI
19th Jun 2026226 AMAQI
19th Jun 2026237 AMAQI
19th Jun 2026268 AMAQI
19th Jun 2026269 AMAQI
19th Jun 20261710 AMAQI
19th Jun 20261011 AMAQI
19th Jun 20261012 PMAQI
19th Jun 2026111 PMAQI
19th Jun 2026122 PMAQI
19th Jun 2026103 PMAQI
19th Jun 2026124 PMAQI
19th Jun 2026115 PMAQI
19th Jun 2026126 PMAQI
19th Jun 2026137 PMAQI
19th Jun 2026168 PMAQI
19th Jun 2026169 PMAQI
19th Jun 20261810 PMAQI
19th Jun 20261511 PMAQI
20th Jun 20261612 AMAQI
20th Jun 2026121 AMAQI
20th Jun 2026242 AMAQI
20th Jun 2026203 AMAQI
20th Jun 2026224 AMAQI

19°C15/26°C

20th Jun 202685 AMAQI
20th Jun 2026196 AMAQI
20th Jun 2026277 AMAQI
20th Jun 2026288 AMAQI
20th Jun 2026279 AMAQI
20th Jun 2026810 AMAQI
20th Jun 20263011 AMAQI
20th Jun 20261012 PMAQI
20th Jun 202692 PMAQI
20th Jun 202683 PMAQI
20th Jun 2026104 PMAQI
20th Jun 202695 PMAQI
20th Jun 2026146 PMAQI
20th Jun 2026117 PMAQI
20th Jun 2026108 PMAQI
20th Jun 2026129 PMAQI
20th Jun 2026910 PMAQI
20th Jun 20261011 PMAQI
21st Jun 2026912 AMAQI
21st Jun 2026101 AMAQI
21st Jun 202682 AMAQI
21st Jun 2026203 AMAQI
21st Jun 2026204 AMAQI

21°C15/30°C

21st Jun 2026145 AMAQI
21st Jun 2026226 AMAQI
21st Jun 2026247 AMAQI
21st Jun 2026268 AMAQI
21st Jun 2026269 AMAQI
21st Jun 20262610 AMAQI
21st Jun 20262211 AMAQI
21st Jun 20262112 PMAQI
21st Jun 2026221 PMAQI
21st Jun 202692 PMAQI
21st Jun 202693 PMAQI
21st Jun 202694 PMAQI
21st Jun 2026105 PMAQI
21st Jun 2026116 PMAQI
21st Jun 2026107 PMAQI
21st Jun 202698 PMAQI
21st Jun 2026109 PMAQI
21st Jun 20261210 PMAQI
21st Jun 20261211 PMAQI
22nd Jun 20261012 AMAQI
22nd Jun 2026111 AMAQI
22nd Jun 2026102 AMAQI
22nd Jun 2026113 AMAQI
22nd Jun 2026134 AMAQI

22°C14/33°C

22nd Jun 2026125 AMAQI
22nd Jun 2026136 AMAQI
22nd Jun 2026147 AMAQI
22nd Jun 2026138 AMAQI
22nd Jun 2026129 AMAQI
22nd Jun 20262210 AMAQI
22nd Jun 20261411 AMAQI
22nd Jun 20261812 PMAQI
22nd Jun 2026181 PMAQI
22nd Jun 2026182 PMAQI
22nd Jun 2026203 PMAQI
22nd Jun 2026204 PMAQI
22nd Jun 2026165 PMAQI
22nd Jun 2026166 PMAQI
22nd Jun 2026167 PMAQI
22nd Jun 2026188 PMAQI
22nd Jun 2026189 PMAQI
22nd Jun 20261410 PMAQI
22nd Jun 20261411 PMAQI
23rd Jun 20261212 AMAQI
23rd Jun 2026101 AMAQI
23rd Jun 2026122 AMAQI
23rd Jun 2026103 AMAQI
23rd Jun 202684 AMAQI

21°C14/32°C

23rd Jun 2026125 AMAQI
23rd Jun 2026106 AMAQI
23rd Jun 2026107 AMAQI
23rd Jun 2026158 AMAQI
23rd Jun 2026169 AMAQI
23rd Jun 20261110 AMAQI
23rd Jun 2026811 AMAQI
23rd Jun 20261012 PMAQI
23rd Jun 2026101 PMAQI
23rd Jun 2026142 PMAQI
23rd Jun 2026183 PMAQI
23rd Jun 2026184 PMAQI
23rd Jun 2026135 PMAQI
23rd Jun 2026106 PMAQI
23rd Jun 2026127 PMAQI
23rd Jun 2026118 PMAQI
23rd Jun 2026119 PMAQI
23rd Jun 20261210 PMAQI
23rd Jun 20261911 PMAQI
24th Jun 20261612 AMAQI
24th Jun 2026111 AMAQI
24th Jun 2026112 AMAQI
24th Jun 2026123 AMAQI
24th Jun 2026104 AMAQI

21°C13/33°C

24th Jun 2026145 AMAQI
24th Jun 2026106 AMAQI
24th Jun 2026127 AMAQI
24th Jun 2026118 AMAQI
24th Jun 2026289 AMAQI
24th Jun 20261410 AMAQI
24th Jun 20261111 AMAQI
24th Jun 20261412 PMAQI
24th Jun 2026111 PMAQI
24th Jun 2026142 PMAQI
24th Jun 2026143 PMAQI
24th Jun 2026124 PMAQI
24th Jun 2026145 PMAQI
24th Jun 2026126 PMAQI
24th Jun 2026147 PMAQI
24th Jun 2026148 PMAQI
24th Jun 2026169 PMAQI
24th Jun 20261310 PMAQI
24th Jun 20261611 PMAQI
25th Jun 20261212 AMAQI
25th Jun 2026101 AMAQI
25th Jun 2026102 AMAQI
25th Jun 202693 AMAQI
25th Jun 2026224 AMAQI

20°C13/31°C

25th Jun 2026105 AMAQI
25th Jun 2026166 AMAQI
25th Jun 2026167 AMAQI
25th Jun 2026168 AMAQI
25th Jun 2026149 AMAQI
25th Jun 20261610 AMAQI
25th Jun 20261411 AMAQI
25th Jun 20262312 PMAQI
25th Jun 2026121 PMAQI
25th Jun 2026122 PMAQI
25th Jun 2026153 PMAQI
25th Jun 2026154 PMAQI
25th Jun 2026165 PMAQI
25th Jun 2026326 PMAQI
25th Jun 2026187 PMAQI
25th Jun 2026208 PMAQI
25th Jun 2026229 PMAQI
25th Jun 20262710 PMAQI
25th Jun 20262011 PMAQI
26th Jun 20262012 AMAQI
26th Jun 2026171 AMAQI
26th Jun 2026222 AMAQI
26th Jun 2026193 AMAQI
26th Jun 2026184 AMAQI

20°C13/30°C

26th Jun 2026165 AMAQI
26th Jun 2026156 AMAQI
26th Jun 2026147 AMAQI
26th Jun 2026168 AMAQI
26th Jun 2026149 AMAQI
26th Jun 20261610 AMAQI
26th Jun 20261211 AMAQI
26th Jun 20261412 PMAQI
26th Jun 2026121 PMAQI
26th Jun 2026142 PMAQI
26th Jun 2026123 PMAQI
26th Jun 2026224 PMAQI
26th Jun 2026245 PMAQI
26th Jun 2026186 PMAQI
26th Jun 2026207 PMAQI
26th Jun 2026228 PMAQI
26th Jun 2026209 PMAQI
26th Jun 20261910 PMAQI
26th Jun 20262611 PMAQI
27th Jun 20261712 AMAQI
27th Jun 2026151 AMAQI
27th Jun 2026102 AMAQI
27th Jun 202693 AMAQI
27th Jun 2026304 AMAQI

20°C14/28°C

27th Jun 2026285 AMAQI
27th Jun 2026286 AMAQI
27th Jun 2026317 AMAQI
27th Jun 2026328 AMAQI
27th Jun 2026319 AMAQI
27th Jun 20263210 AMAQI
27th Jun 20262911 AMAQI
27th Jun 20263212 PMAQI
27th Jun 2026131 PMAQI
27th Jun 2026312 PMAQI
27th Jun 2026163 PMAQI
27th Jun 2026104 PMAQI
27th Jun 2026105 PMAQI
27th Jun 2026116 PMAQI
27th Jun 202697 PMAQI
27th Jun 2026128 PMAQI
27th Jun 2026119 PMAQI
27th Jun 20261210 PMAQI
27th Jun 20261211 PMAQI
28th Jun 20261212 AMAQI
28th Jun 2026141 AMAQI
28th Jun 2026142 AMAQI
28th Jun 2026123 AMAQI
28th Jun 2026124 AMAQI

20°C14/28°C

28th Jun 2026125 AMAQI
28th Jun 2026166 AMAQI
28th Jun 2026167 AMAQI
28th Jun 2026148 AMAQI
28th Jun 2026129 AMAQI
28th Jun 20261410 AMAQI
28th Jun 20261511 AMAQI
28th Jun 20261412 PMAQI
28th Jun 2026181 PMAQI
28th Jun 2026172 PMAQI
28th Jun 2026163 PMAQI
28th Jun 2026194 PMAQI
28th Jun 2026305 PMAQI
28th Jun 2026146 PMAQI
28th Jun 2026127 PMAQI
28th Jun 2026128 PMAQI
28th Jun 2026109 PMAQI
28th Jun 20261310 PMAQI
28th Jun 20261311 PMAQI
29th Jun 20261612 AMAQI
29th Jun 2026141 AMAQI
29th Jun 2026122 AMAQI
29th Jun 2026123 AMAQI
29th Jun 2026144 AMAQI

23°C14/32°C

29th Jun 2026145 AMAQI
29th Jun 2026206 AMAQI
29th Jun 2026157 AMAQI
29th Jun 2026188 AMAQI
29th Jun 2026229 AMAQI
29th Jun 20262510 AMAQI
29th Jun 20262011 AMAQI
29th Jun 20261912 PMAQI
29th Jun 2026181 PMAQI
29th Jun 2026202 PMAQI
29th Jun 2026203 PMAQI
29th Jun 2026204 PMAQI
29th Jun 2026185 PMAQI
29th Jun 2026216 PMAQI
29th Jun 2026187 PMAQI
29th Jun 2026238 PMAQI
29th Jun 2026209 PMAQI
29th Jun 20261610 PMAQI
29th Jun 20261911 PMAQI
30th Jun 20262612 AMAQI
30th Jun 2026361 AMAQI
30th Jun 2026382 AMAQI
30th Jun 2026273 AMAQI
30th Jun 2026194 AMAQI

25°C16/35°C

30th Jun 2026165 AMAQI
30th Jun 2026186 AMAQI
30th Jun 2026187 AMAQI
30th Jun 2026208 AMAQI
30th Jun 2026239 AMAQI
30th Jun 20262410 AMAQI
30th Jun 20262411 AMAQI
30th Jun 20262412 PMAQI
30th Jun 2026241 PMAQI
30th Jun 2026272 PMAQI
30th Jun 2026263 PMAQI
30th Jun 2026244 PMAQI
30th Jun 2026265 PMAQI
30th Jun 2026206 PMAQI
30th Jun 2026207 PMAQI
30th Jun 2026228 PMAQI
30th Jun 2026249 PMAQI
30th Jun 20262210 PMAQI
30th Jun 20262211 PMAQI
1st Jul 20262112 AMAQI
1st Jul 2026181 AMAQI
1st Jul 2026202 AMAQI
1st Jul 2026203 AMAQI
1st Jul 2026194 AMAQI

23°C16/32°C

1st Jul 2026205 AMAQI
1st Jul 2026206 AMAQI
1st Jul 2026247 AMAQI
1st Jul 2026268 AMAQI
1st Jul 2026269 AMAQI
1st Jul 20262510 AMAQI
1st Jul 20262511 AMAQI
1st Jul 20262812 PMAQI
1st Jul 2026281 PMAQI
1st Jul 2026302 PMAQI
1st Jul 2026283 PMAQI
1st Jul 2026254 PMAQI
1st Jul 2026245 PMAQI
1st Jul 2026266 PMAQI
1st Jul 2026257 PMAQI
1st Jul 2026288 PMAQI
1st Jul 2026269 PMAQI
1st Jul 20262610 PMAQI
1st Jul 20262611 PMAQI
2nd Jul 20262212 AMAQI
2nd Jul 2026201 AMAQI
2nd Jul 2026242 AMAQI
2nd Jul 2026233 AMAQI
2nd Jul 2026224 AMAQI

21°C13/32°C

2nd Jul 2026215 AMAQI
2nd Jul 2026206 AMAQI
2nd Jul 2026217 AMAQI
2nd Jul 2026208 AMAQI
2nd Jul 2026229 AMAQI
2nd Jul 20262110 AMAQI
2nd Jul 20262211 AMAQI
2nd Jul 20262212 PMAQI
2nd Jul 2026221 PMAQI
2nd Jul 2026242 PMAQI
2nd Jul 2026253 PMAQI
2nd Jul 2026274 PMAQI
2nd Jul 2026275 PMAQI
2nd Jul 2026266 PMAQI
2nd Jul 2026267 PMAQI
2nd Jul 2026268 PMAQI
2nd Jul 2026259 PMAQI
2nd Jul 20262210 PMAQI
2nd Jul 20262111 PMAQI
3rd Jul 20261812 AMAQI
3rd Jul 2026141 AMAQI
3rd Jul 2026142 AMAQI
3rd Jul 2026143 AMAQI
3rd Jul 2026124 AMAQI

20°C13/31°C

3rd Jul 2026135 AMAQI
3rd Jul 2026126 AMAQI
3rd Jul 2026107 AMAQI
3rd Jul 2026128 AMAQI
3rd Jul 2026129 AMAQI
3rd Jul 20261310 AMAQI
3rd Jul 20261211 AMAQI
3rd Jul 20261612 PMAQI
3rd Jul 2026151 PMAQI
3rd Jul 2026162 PMAQI
3rd Jul 2026183 PMAQI
3rd Jul 2026164 PMAQI
3rd Jul 2026205 PMAQI
3rd Jul 2026186 PMAQI
3rd Jul 2026167 PMAQI
3rd Jul 2026158 PMAQI
3rd Jul 2026149 PMAQI
3rd Jul 20261410 PMAQI
3rd Jul 20261511 PMAQI
4th Jul 20261412 AMAQI
4th Jul 2026121 AMAQI
4th Jul 2026112 AMAQI
4th Jul 2026123 AMAQI
4th Jul 2026144 AMAQI

22°C13/34°C

4th Jul 2026125 AMAQI
4th Jul 2026136 AMAQI
4th Jul 2026107 AMAQI
4th Jul 2026118 AMAQI
4th Jul 2026129 AMAQI
4th Jul 2026810 AMAQI
4th Jul 20262611 AMAQI
4th Jul 20261612 PMAQI
4th Jul 2026111 PMAQI
4th Jul 2026102 PMAQI
4th Jul 2026123 PMAQI
4th Jul 2026124 PMAQI
4th Jul 2026125 PMAQI
4th Jul 2026106 PMAQI
4th Jul 2026107 PMAQI
4th Jul 2026108 PMAQI
4th Jul 2026109 PMAQI
4th Jul 20261010 PMAQI
4th Jul 20261211 PMAQI
5th Jul 20261812 AMAQI
5th Jul 2026241 AMAQI
5th Jul 2026222 AMAQI
5th Jul 2026153 AMAQI
5th Jul 2026144 AMAQI

23°C15/35°C

5th Jul 2026125 AMAQI
5th Jul 2026176 AMAQI
5th Jul 2026127 AMAQI
5th Jul 2026108 AMAQI
5th Jul 2026189 AMAQI
5th Jul 20262810 AMAQI
5th Jul 20262811 AMAQI
5th Jul 20262612 PMAQI
5th Jul 2026261 PMAQI
5th Jul 2026292 PMAQI
5th Jul 2026123 PMAQI
5th Jul 2026124 PMAQI
5th Jul 2026125 PMAQI
5th Jul 2026136 PMAQI
5th Jul 2026147 PMAQI
5th Jul 2026108 PMAQI
5th Jul 2026129 PMAQI
5th Jul 20261410 PMAQI
5th Jul 20261211 PMAQI
6th Jul 20261212 AMAQI
6th Jul 2026121 AMAQI
6th Jul 2026142 AMAQI
6th Jul 2026243 AMAQI
6th Jul 2026304 AMAQI

21°C13/31°C

6th Jul 2026305 AMAQI
6th Jul 2026106 AMAQI
6th Jul 2026147 AMAQI
6th Jul 2026168 AMAQI
6th Jul 2026189 AMAQI
6th Jul 20261410 AMAQI
6th Jul 20261411 AMAQI
6th Jul 20261012 PMAQI
6th Jul 2026121 PMAQI
6th Jul 2026122 PMAQI
6th Jul 2026123 PMAQI
6th Jul 2026124 PMAQI
6th Jul 2026215 PMAQI
6th Jul 2026136 PMAQI
6th Jul 2026167 PMAQI
6th Jul 2026168 PMAQI
6th Jul 2026149 PMAQI
6th Jul 20261310 PMAQI
6th Jul 20261011 PMAQI
7th Jul 20261212 AMAQI
7th Jul 2026111 AMAQI
7th Jul 2026142 AMAQI
7th Jul 2026123 AMAQI
7th Jul 2026124 AMAQI

20°C14/30°C

7th Jul 2026145 AMAQI
7th Jul 2026126 AMAQI
7th Jul 2026137 AMAQI
7th Jul 2026148 AMAQI
7th Jul 2026129 AMAQI
7th Jul 20261410 AMAQI
7th Jul 20261211 AMAQI
7th Jul 20261212 PMAQI
7th Jul 2026141 PMAQI
7th Jul 2026172 PMAQI
7th Jul 2026203 PMAQI
7th Jul 2026194 PMAQI
7th Jul 2026215 PMAQI
7th Jul 2026206 PMAQI
7th Jul 2026187 PMAQI
7th Jul 2026168 PMAQI
7th Jul 2026219 PMAQI
7th Jul 20262210 PMAQI
7th Jul 20261911 PMAQI
8th Jul 20261512 AMAQI
8th Jul 2026201 AMAQI
8th Jul 2026162 AMAQI
8th Jul 2026173 AMAQI
8th Jul 2026134 AMAQI

20°C13/30°C

8th Jul 2026155 AMAQI
8th Jul 2026166 AMAQI
8th Jul 2026127 AMAQI
8th Jul 2026128 AMAQI
8th Jul 2026149 AMAQI
8th Jul 20261610 AMAQI
8th Jul 20261611 AMAQI
8th Jul 20261612 PMAQI
8th Jul 2026181 PMAQI
8th Jul 2026192 PMAQI
8th Jul 2026243 PMAQI
8th Jul 2026274 PMAQI
8th Jul 2026305 PMAQI
8th Jul 2026226 PMAQI
8th Jul 2026227 PMAQI
8th Jul 2026178 PMAQI
8th Jul 2026189 PMAQI
8th Jul 20261810 PMAQI
8th Jul 20261411 PMAQI
9th Jul 20261612 AMAQI
9th Jul 2026141 AMAQI
9th Jul 2026142 AMAQI
9th Jul 2026123 AMAQI
9th Jul 2026104 AMAQI

21°C13/32°C

9th Jul 2026115 AMAQI
9th Jul 2026106 AMAQI
9th Jul 2026147 AMAQI
9th Jul 2026188 AMAQI
9th Jul 2026189 AMAQI
9th Jul 20261410 AMAQI
9th Jul 20261611 AMAQI
9th Jul 20261512 PMAQI
9th Jul 2026141 PMAQI
9th Jul 2026202 PMAQI
9th Jul 2026203 PMAQI
9th Jul 2026234 PMAQI
9th Jul 2026225 PMAQI
9th Jul 2026226 PMAQI
9th Jul 2026207 PMAQI
9th Jul 2026208 PMAQI
9th Jul 2026229 PMAQI
9th Jul 20262710 PMAQI
9th Jul 20262611 PMAQI
10th Jul 20262412 AMAQI
10th Jul 2026201 AMAQI
10th Jul 2026192 AMAQI
10th Jul 2026213 AMAQI
10th Jul 2026214 AMAQI

24°C15/37°C

10th Jul 2026185 AMAQI
10th Jul 2026196 AMAQI
10th Jul 2026207 AMAQI
10th Jul 2026228 AMAQI
10th Jul 2026209 AMAQI
10th Jul 20262210 AMAQI
10th Jul 20262311 AMAQI
10th Jul 20262412 PMAQI
10th Jul 2026211 PMAQI
10th Jul 2026242 PMAQI
10th Jul 2026243 PMAQI
10th Jul 2026234 PMAQI
10th Jul 2026225 PMAQI
10th Jul 2026246 PMAQI
10th Jul 2026267 PMAQI
10th Jul 2026258 PMAQI
10th Jul 2026249 PMAQI
10th Jul 20262410 PMAQI
10th Jul 20261911 PMAQI
11th Jul 20261612 AMAQI
11th Jul 2026141 AMAQI
11th Jul 2026122 AMAQI
11th Jul 2026113 AMAQI
11th Jul 2026124 AMAQI

23°C16/33°C

11th Jul 2026165 AMAQI
11th Jul 2026206 AMAQI
11th Jul 2026127 AMAQI
11th Jul 2026148 AMAQI
11th Jul 2026129 AMAQI
11th Jul 20261410 AMAQI
11th Jul 20261411 AMAQI
11th Jul 20261312 PMAQI
11th Jul 2026141 PMAQI
11th Jul 2026132 PMAQI
11th Jul 2026133 PMAQI
11th Jul 2026164 PMAQI
11th Jul 2026125 PMAQI
11th Jul 2026116 PMAQI
11th Jul 2026127 PMAQI
11th Jul 2026118 PMAQI
11th Jul 2026129 PMAQI
11th Jul 20261610 PMAQI
11th Jul 20261611 PMAQI
12th Jul 20261212 AMAQI
12th Jul 2026141 AMAQI
12th Jul 2026122 AMAQI
12th Jul 2026103 AMAQI
12th Jul 202684 AMAQI

24°C15/36°C

12th Jul 2026105 AMAQI
12th Jul 2026106 AMAQI
12th Jul 2026127 AMAQI
12th Jul 2026108 AMAQI
12th Jul 2026119 AMAQI
12th Jul 20261210 AMAQI
12th Jul 20261211 AMAQI
12th Jul 20261412 PMAQI
12th Jul 2026141 PMAQI
12th Jul 2026142 PMAQI
12th Jul 2026153 PMAQI
12th Jul 2026164 PMAQI
12th Jul 2026145 PMAQI
12th Jul 2026126 PMAQI
12th Jul 2026127 PMAQI
12th Jul 2026148 PMAQI
12th Jul 2026139 PMAQI
12th Jul 20261610 PMAQI
12th Jul 20261411 PMAQI
13th Jul 20261612 AMAQI
13th Jul 2026171 AMAQI
13th Jul 2026142 AMAQI
13th Jul 2026133 AMAQI
13th Jul 2026144 AMAQI

27°C19/37°C

13th Jul 2026125 AMAQI
5 AM
13th Jul 2026146 AMAQI
13th Jul 2026147 AMAQI
13th Jul 2026138 AMAQI
13th Jul 2026169 AMAQI
13th Jul 20262810 AMAQI
13th Jul 20262311 AMAQI
13th Jul 20263012 PMAQI
12 PM
13th Jul 2026281 PMAQI
13th Jul 2026302 PMAQI
13th Jul 2026283 PMAQI
13th Jul 2026304 PMAQI
13th Jul 2026275 PMAQI
13th Jul 2026206 PMAQI
13th Jul 2026207 PMAQI
13th Jul 2026298 PMAQI
8 PM
13th Jul 2026259 PMAQI
13th Jul 20261810 PMAQI
13th Jul 20261611 PMAQI
12 AM
4 AM

29°C21/40°C

Day time
Avg. Highest Time
8 AM - 10 AM

18AQI

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

16AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 AM to 10 AM (Avg. 18), while the lowest AQI was between 5 AM to 5 AM (Avg. 16).
Night time
Avg. Highest Time
9 PM - 10 PM

17AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
12 AM - 3 AM

15AQI

4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 PM to 10 PM (Avg. 17), while the lowest AQI was between 12 AM to 3 AM (Avg. 15).

2026 Days Vs Air Quality

Rio Vista Ys, Rio Vista, California, United States

2026

95%

180

5%

10

Total number of days with different AQI categories in last 194 days in 2026 (171 days remaining)

Good
180 Days
Moderate
10 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 95%

Health Risk Level:

Very Low

In 2026, 95% of 194 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

Rio Vista Ys, Rio Vista, 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
48AQI (US)
2nd January 2026
40AQI (US)
3rd January 2026
39AQI (US)
4th January 2026
31AQI (US)
5th January 2026
33AQI (US)
6th January 2026
32AQI (US)
7th January 2026
32AQI (US)
8th January 2026
33AQI (US)
9th January 2026
38AQI (US)
10th January 2026
49AQI (US)
11th January 2026
46AQI (US)
12th January 2026
61AQI (US)
13th January 2026
73AQI (US)
14th January 2026
71AQI (US)
15th January 2026
70AQI (US)
16th January 2026
71AQI (US)
17th January 2026
68AQI (US)
18th January 2026
71AQI (US)
19th January 2026
59AQI (US)
20th January 2026
55AQI (US)
21st January 2026
50AQI (US)
22nd January 2026
32AQI (US)
23rd January 2026
30AQI (US)
24th January 2026
25AQI (US)
25th January 2026
29AQI (US)
26th January 2026
26AQI (US)
27th January 2026
29AQI (US)
28th January 2026
31AQI (US)
29th January 2026
48AQI (US)
30th January 2026
46AQI (US)
31st January 2026
30AQI (US)
1st February 2026
40AQI (US)
2nd February 2026
29AQI (US)
3rd February 2026
30AQI (US)
4th February 2026
28AQI (US)
5th February 2026
28AQI (US)
6th February 2026
31AQI (US)
7th February 2026
28AQI (US)
8th February 2026
28AQI (US)
9th February 2026
40AQI (US)
10th February 2026
28AQI (US)
11th February 2026
19AQI (US)
12th February 2026
30AQI (US)
13th February 2026
30AQI (US)
14th February 2026
31AQI (US)
15th February 2026
28AQI (US)
16th February 2026
45AQI (US)
17th February 2026
39AQI (US)
18th February 2026
36AQI (US)
19th February 2026
45AQI (US)
20th February 2026
25AQI (US)
21st February 2026
21AQI (US)
22nd February 2026
26AQI (US)
23rd February 2026
27AQI (US)
24th February 2026
24AQI (US)
25th February 2026
33AQI (US)
26th February 2026
24AQI (US)
27th February 2026
17AQI (US)
28th February 2026
19AQI (US)
1st March 2026
31AQI (US)
2nd March 2026
42AQI (US)
3rd March 2026
15AQI (US)
4th March 2026
19AQI (US)
5th March 2026
26AQI (US)
6th March 2026
27AQI (US)
7th March 2026
20AQI (US)
8th March 2026
18AQI (US)
9th March 2026
21AQI (US)
10th March 2026
23AQI (US)
11th March 2026
22AQI (US)
12th March 2026
22AQI (US)
13th March 2026
26AQI (US)
14th March 2026
16AQI (US)
15th March 2026
18AQI (US)
16th March 2026
27AQI (US)
17th March 2026
25AQI (US)
18th March 2026
28AQI (US)
19th March 2026
26AQI (US)
20th March 2026
31AQI (US)
21st March 2026
24AQI (US)
22nd March 2026
16AQI (US)
23rd March 2026
21AQI (US)
24th March 2026
20AQI (US)
25th March 2026
18AQI (US)
26th March 2026
27AQI (US)
27th March 2026
21AQI (US)
28th March 2026
21AQI (US)
29th March 2026
17AQI (US)
30th March 2026
25AQI (US)
31st March 2026
18AQI (US)
1st April 2026
25AQI (US)
2nd April 2026
21AQI (US)
3rd April 2026
17AQI (US)
4th April 2026
19AQI (US)
5th April 2026
20AQI (US)
6th April 2026
27AQI (US)
7th April 2026
20AQI (US)
8th April 2026
27AQI (US)
9th April 2026
22AQI (US)
10th April 2026
30AQI (US)
11th April 2026
32AQI (US)
12th April 2026
26AQI (US)
13th April 2026
34AQI (US)
14th April 2026
18AQI (US)
15th April 2026
17AQI (US)
16th April 2026
21AQI (US)
17th April 2026
18th April 2026
16AQI (US)
19th April 2026
16AQI (US)
20th April 2026
18AQI (US)
21st April 2026
25AQI (US)
22nd April 2026
23rd April 2026
26AQI (US)
24th April 2026
17AQI (US)
25th April 2026
15AQI (US)
26th April 2026
15AQI (US)
27th April 2026
14AQI (US)
28th April 2026
16AQI (US)
29th April 2026
17AQI (US)
30th April 2026
21AQI (US)
1st May 2026
19AQI (US)
2nd May 2026
16AQI (US)
3rd May 2026
16AQI (US)
4th May 2026
24AQI (US)
5th May 2026
29AQI (US)
6th May 2026
25AQI (US)
7th May 2026
17AQI (US)
8th May 2026
20AQI (US)
9th May 2026
10th May 2026
19AQI (US)
11th May 2026
20AQI (US)
12th May 2026
24AQI (US)
13th May 2026
19AQI (US)
14th May 2026
19AQI (US)
15th May 2026
36AQI (US)
16th May 2026
50AQI (US)
17th May 2026
57AQI (US)
18th May 2026
49AQI (US)
19th May 2026
48AQI (US)
20th May 2026
42AQI (US)
21st May 2026
39AQI (US)
22nd May 2026
43AQI (US)
23rd May 2026
41AQI (US)
24th May 2026
36AQI (US)
25th May 2026
39AQI (US)
26th May 2026
17AQI (US)
27th May 2026
13AQI (US)
28th May 2026
15AQI (US)
29th May 2026
13AQI (US)
30th May 2026
19AQI (US)
31st May 2026
16AQI (US)
1st June 2026
18AQI (US)
2nd June 2026
22AQI (US)
3rd June 2026
23AQI (US)
4th June 2026
20AQI (US)
5th June 2026
28AQI (US)
6th June 2026
25AQI (US)
7th June 2026
14AQI (US)
8th June 2026
22AQI (US)
9th June 2026
17AQI (US)
10th June 2026
17AQI (US)
11th June 2026
17AQI (US)
12th June 2026
18AQI (US)
13th June 2026
15AQI (US)
14th June 2026
13AQI (US)
15th June 2026
19AQI (US)
16th June 2026
15AQI (US)
17th June 2026
15AQI (US)
18th June 2026
17AQI (US)
19th June 2026
15AQI (US)
20th June 2026
15AQI (US)
21st June 2026
15AQI (US)
22nd June 2026
15AQI (US)
23rd June 2026
12AQI (US)
24th June 2026
14AQI (US)
25th June 2026
17AQI (US)
26th June 2026
18AQI (US)
27th June 2026
20AQI (US)
28th June 2026
15AQI (US)
29th June 2026
18AQI (US)
30th June 2026
24AQI (US)
1st July 2026
24AQI (US)
2nd July 2026
23AQI (US)
3rd July 2026
15AQI (US)
4th July 2026
12AQI (US)
5th July 2026
17AQI (US)
6th July 2026
15AQI (US)
7th July 2026
15AQI (US)
8th July 2026
18AQI (US)
9th July 2026
17AQI (US)
10th July 2026
22AQI (US)
11th July 2026
14AQI (US)
12th July 2026
13AQI (US)
13th July 2026
14th July 2026
15th July 2026
16th July 2026
17th July 2026
18th July 2026
19th July 2026
20th July 2026
21st July 2026
22nd July 2026
23rd July 2026
24th July 2026
25th July 2026
26th July 2026
27th July 2026
28th July 2026
29th July 2026
30th July 2026
31st July 2026
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

45AQI (US)

30AQI (US)

23AQI (US)

21AQI (US)

28AQI (US)

18AQI (US)

17AQI (US)

No. of days

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

202627AQI (US)

22
9
28
31
28
29
1
30
12
180
10

Highest AQI (US) recorded in

January

45AQI (US)

Lowest AQI (US) recorded in

July

17AQI (US)

202539AQI (US)

21
10
27
1
31
29
1
30
1
25
5
31
30
1
26
4
13
18
15
15
7
24
285
80

Highest AQI (US) recorded in

December

59AQI (US)

Lowest AQI (US) recorded in

March

27AQI (US)

202436AQI (US)

25
5
28
31
29
31
20
9
28
3
27
4
28
1
27
4
26
4
16
15
316
45

Highest AQI (US) recorded in

December

52AQI (US)

Lowest AQI (US) recorded in

March

25AQI (US)

202344AQI (US)

23
5
17
11
30
1
26
1
18
5
24
6
19
12
19
12
21
7
2
25
6
17
11
20
11
259
88
2

Highest AQI (US) recorded in

August

51AQI (US)

Lowest AQI (US) recorded in

March

35AQI (US)

202240AQI (US)

12
18
15
7
31
23
1
31
30
13
6
1
1
16
13
23
8
22
7
1
18
12
1
235
73
2

Highest AQI (US) recorded in

August

62AQI (US)

Lowest AQI (US) recorded in

March

24AQI (US)

202135AQI (US)

21
9
26
2
27
29
1
31
30
31
18
11
2
22
8
26
2
20
10
18
13
299
56
2

Highest AQI (US) recorded in

August

51AQI (US)

Lowest AQI (US) recorded in

June

24AQI (US)

202037AQI (US)

13
15
18
30
26
19
4
8
9
13
4
3
1
19
9
2
1
24
6
16
15
189
47
14
4
1

Highest AQI (US) recorded in

September

80AQI (US)

Lowest AQI (US) recorded in

April

0AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2023(Avg.)
44AQI (US)
Least Polluted Year Recorded
2026(Avg.)
27AQI (US)

Rio Vista Ys's annual 2026 AQI (US) (27) shows an average percentage change of -29.4% (improved AQI (US)) compared to previous years: 2020 (37), 2021 (35), 2022 (40), 2023 (44), 2024 (36), 2025 (39).