Lacey, Washington, 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
Lacey, Washington, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
2nd Aug 2021
111AQILowest AQI recorded on
5th Aug 2021
11AQISame Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 18 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 1st Aug - 2nd Aug 2025
Lacey, Washington, United States
AQI
Day
Night
.
5 AM1st Aug 2025
9 PM
4 AM2nd Aug 2025
Day time
Avg. Highest Time
8PM1st Aug
20AQI
Avg. Lowest Time
8AM1st Aug
15AQI
Night time
Avg. Highest Time
10PM1st Aug
31AQI
Avg. Lowest Time
3AM2nd Aug
17AQI
In the last 24 hours,
Lacey's AQI reached its highest point of 31 at 10 PM during the Night, while the lowest point, 15, was recorded at 8 AM during the Day between 1st Aug and 2nd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Lacey, Washington, United States
JulAug
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 Jul 2025135 AMAQI
3rd Jul 2025146 AMAQI
3rd Jul 2025147 AMAQI
3rd Jul 2025158 AMAQI
3rd Jul 2025169 AMAQI
3rd Jul 20251610 AMAQI
3rd Jul 20251311 AMAQI
3rd Jul 20251412 PMAQI
3rd Jul 2025131 PMAQI
3rd Jul 2025152 PMAQI
3rd Jul 2025153 PMAQI
3rd Jul 2025174 PMAQI
3rd Jul 2025175 PMAQI
3rd Jul 2025166 PMAQI
3rd Jul 2025157 PMAQI
3rd Jul 2025158 PMAQI
3rd Jul 2025169 PMAQI
3rd Jul 20251510 PMAQI
3rd Jul 20251511 PMAQI
4th Jul 20251812 AMAQI
4th Jul 2025251 AMAQI
4th Jul 2025162 AMAQI
4th Jul 2025173 AMAQI
4th Jul 2025164 AMAQI
--°C/°C
4th Jul 2025165 AMAQI
4th Jul 2025186 AMAQI
4th Jul 2025177 AMAQI
4th Jul 2025188 AMAQI
4th Jul 2025199 AMAQI
4th Jul 20251610 AMAQI
4th Jul 20251711 AMAQI
4th Jul 20251612 PMAQI
4th Jul 2025221 PMAQI
4th Jul 2025192 PMAQI
4th Jul 2025183 PMAQI
4th Jul 2025184 PMAQI
4th Jul 2025195 PMAQI
4th Jul 2025196 PMAQI
4th Jul 2025187 PMAQI
4th Jul 2025178 PMAQI
4th Jul 2025169 PMAQI
4th Jul 20251710 PMAQI
4th Jul 20251811 PMAQI
5th Jul 20251812 AMAQI
5th Jul 2025241 AMAQI
5th Jul 2025282 AMAQI
5th Jul 2025213 AMAQI
5th Jul 2025264 AMAQI
16°C11/21°C
5th Jul 2025285 AMAQI
5th Jul 2025296 AMAQI
5th Jul 2025277 AMAQI
5th Jul 2025338 AMAQI
5th Jul 2025299 AMAQI
5th Jul 20252610 AMAQI
5th Jul 20252411 AMAQI
5th Jul 20252112 PMAQI
5th Jul 2025191 PMAQI
5th Jul 2025212 PMAQI
5th Jul 2025223 PMAQI
5th Jul 2025224 PMAQI
5th Jul 2025235 PMAQI
5th Jul 2025236 PMAQI
5th Jul 2025237 PMAQI
5th Jul 2025218 PMAQI
5th Jul 2025199 PMAQI
5th Jul 20251910 PMAQI
5th Jul 20251911 PMAQI
6th Jul 20251912 AMAQI
6th Jul 2025301 AMAQI
6th Jul 2025192 AMAQI
6th Jul 2025153 AMAQI
6th Jul 2025144 AMAQI
16°C11/22°C
6th Jul 2025245 AMAQI
6th Jul 2025306 AMAQI
6th Jul 2025207 AMAQI
6th Jul 2025198 AMAQI
6th Jul 2025239 AMAQI
6th Jul 20254110 AMAQI
6th Jul 20254711 AMAQI
6th Jul 20252812 PMAQI
6th Jul 2025201 PMAQI
6th Jul 2025212 PMAQI
6th Jul 2025243 PMAQI
6th Jul 2025204 PMAQI
6th Jul 2025195 PMAQI
6th Jul 2025226 PMAQI
6th Jul 2025197 PMAQI
6th Jul 2025198 PMAQI
6th Jul 2025209 PMAQI
6th Jul 20251810 PMAQI
6th Jul 20252011 PMAQI
7th Jul 20251912 AMAQI
7th Jul 2025381 AMAQI
7th Jul 2025422 AMAQI
7th Jul 2025443 AMAQI
7th Jul 2025174 AMAQI
20°C14/28°C
7th Jul 2025225 AMAQI
7th Jul 2025236 AMAQI
7th Jul 2025217 AMAQI
7th Jul 2025228 AMAQI
7th Jul 2025209 AMAQI
7th Jul 20253210 AMAQI
7th Jul 20255811 AMAQI
7th Jul 20253212 PMAQI
7th Jul 2025321 PMAQI
7th Jul 2025262 PMAQI
7th Jul 2025203 PMAQI
7th Jul 2025264 PMAQI
7th Jul 2025275 PMAQI
7th Jul 2025256 PMAQI
7th Jul 2025247 PMAQI
7th Jul 2025248 PMAQI
7th Jul 2025249 PMAQI
7th Jul 20252310 PMAQI
7th Jul 20252311 PMAQI
8th Jul 20252512 AMAQI
8th Jul 2025251 AMAQI
8th Jul 2025262 AMAQI
8th Jul 2025253 AMAQI
8th Jul 2025314 AMAQI
22°C14/31°C
8th Jul 2025345 AMAQI
8th Jul 2025476 AMAQI
8th Jul 2025267 AMAQI
8th Jul 2025578 AMAQI
8th Jul 2025409 AMAQI
8th Jul 20252710 AMAQI
8th Jul 20253011 AMAQI
8th Jul 20252912 PMAQI
8th Jul 2025301 PMAQI
8th Jul 2025352 PMAQI
8th Jul 2025303 PMAQI
8th Jul 2025274 PMAQI
8th Jul 2025265 PMAQI
8th Jul 2025236 PMAQI
8th Jul 2025237 PMAQI
8th Jul 2025228 PMAQI
8th Jul 2025199 PMAQI
8th Jul 20251910 PMAQI
8th Jul 20252111 PMAQI
9th Jul 20251712 AMAQI
9th Jul 2025191 AMAQI
9th Jul 2025182 AMAQI
9th Jul 2025183 AMAQI
9th Jul 2025174 AMAQI
20°C13/30°C
9th Jul 2025205 AMAQI
9th Jul 2025366 AMAQI
9th Jul 2025197 AMAQI
9th Jul 2025218 AMAQI
9th Jul 2025169 AMAQI
9th Jul 20252110 AMAQI
9th Jul 20253211 AMAQI
9th Jul 20251812 PMAQI
9th Jul 2025141 PMAQI
9th Jul 2025202 PMAQI
9th Jul 2025173 PMAQI
9th Jul 2025184 PMAQI
9th Jul 2025175 PMAQI
9th Jul 2025176 PMAQI
9th Jul 2025167 PMAQI
9th Jul 2025178 PMAQI
9th Jul 2025169 PMAQI
9th Jul 20251610 PMAQI
9th Jul 20251611 PMAQI
10th Jul 20251612 AMAQI
10th Jul 2025151 AMAQI
10th Jul 2025162 AMAQI
10th Jul 2025163 AMAQI
10th Jul 2025144 AMAQI
17°C15/20°C
10th Jul 2025415 AMAQI
10th Jul 2025366 AMAQI
10th Jul 2025387 AMAQI
10th Jul 2025318 AMAQI
10th Jul 2025199 AMAQI
10th Jul 20252910 AMAQI
10th Jul 20252511 AMAQI
10th Jul 20252512 PMAQI
10th Jul 2025421 PMAQI
10th Jul 2025312 PMAQI
10th Jul 2025263 PMAQI
10th Jul 2025224 PMAQI
10th Jul 2025225 PMAQI
10th Jul 2025226 PMAQI
10th Jul 2025237 PMAQI
10th Jul 2025208 PMAQI
10th Jul 2025189 PMAQI
10th Jul 20251810 PMAQI
10th Jul 20252111 PMAQI
11th Jul 20252012 AMAQI
11th Jul 2025181 AMAQI
11th Jul 2025172 AMAQI
11th Jul 2025183 AMAQI
11th Jul 2025484 AMAQI
17°C14/21°C
11th Jul 2025455 AMAQI
11th Jul 2025436 AMAQI
11th Jul 2025477 AMAQI
11th Jul 2025438 AMAQI
11th Jul 2025419 AMAQI
11th Jul 20254210 AMAQI
11th Jul 20253911 AMAQI
11th Jul 20253012 PMAQI
11th Jul 2025341 PMAQI
11th Jul 2025342 PMAQI
11th Jul 2025263 PMAQI
11th Jul 2025304 PMAQI
11th Jul 2025285 PMAQI
11th Jul 2025266 PMAQI
11th Jul 2025247 PMAQI
11th Jul 2025258 PMAQI
11th Jul 2025249 PMAQI
11th Jul 20252410 PMAQI
11th Jul 20252511 PMAQI
12th Jul 20252512 AMAQI
12th Jul 2025611 AMAQI
12th Jul 2025582 AMAQI
12th Jul 2025623 AMAQI
12th Jul 2025514 AMAQI
22°C14/30°C
12th Jul 2025485 AMAQI
12th Jul 2025556 AMAQI
12th Jul 2025587 AMAQI
12th Jul 2025488 AMAQI
12th Jul 2025619 AMAQI
12th Jul 20255110 AMAQI
12th Jul 20255711 AMAQI
12th Jul 20256212 PMAQI
12th Jul 2025451 PMAQI
12th Jul 2025432 PMAQI
12th Jul 2025363 PMAQI
12th Jul 2025394 PMAQI
12th Jul 2025375 PMAQI
12th Jul 2025386 PMAQI
12th Jul 2025347 PMAQI
12th Jul 2025348 PMAQI
12th Jul 2025329 PMAQI
12th Jul 20253110 PMAQI
12th Jul 20253311 PMAQI
13th Jul 20254012 AMAQI
13th Jul 2025571 AMAQI
13th Jul 2025702 AMAQI
13th Jul 2025423 AMAQI
13th Jul 2025444 AMAQI
22°C15/30°C
13th Jul 2025365 AMAQI
13th Jul 2025446 AMAQI
13th Jul 2025457 AMAQI
13th Jul 2025438 AMAQI
13th Jul 2025489 AMAQI
13th Jul 20254910 AMAQI
13th Jul 20254311 AMAQI
13th Jul 20254112 PMAQI
13th Jul 2025401 PMAQI
13th Jul 2025412 PMAQI
13th Jul 2025353 PMAQI
13th Jul 2025364 PMAQI
13th Jul 2025345 PMAQI
13th Jul 2025346 PMAQI
13th Jul 2025347 PMAQI
13th Jul 2025358 PMAQI
13th Jul 2025319 PMAQI
13th Jul 20253210 PMAQI
13th Jul 20253211 PMAQI
14th Jul 20253012 AMAQI
14th Jul 2025291 AMAQI
14th Jul 2025212 AMAQI
14th Jul 2025193 AMAQI
14th Jul 2025214 AMAQI
25°C17/33°C
14th Jul 2025185 AMAQI
14th Jul 2025176 AMAQI
14th Jul 2025167 AMAQI
14th Jul 2025168 AMAQI
14th Jul 2025169 AMAQI
14th Jul 20251610 AMAQI
14th Jul 20251511 AMAQI
14th Jul 20251512 PMAQI
14th Jul 2025161 PMAQI
14th Jul 2025182 PMAQI
14th Jul 2025173 PMAQI
14th Jul 2025184 PMAQI
14th Jul 2025185 PMAQI
14th Jul 2025186 PMAQI
14th Jul 2025177 PMAQI
14th Jul 2025178 PMAQI
14th Jul 2025189 PMAQI
14th Jul 20251810 PMAQI
14th Jul 20251811 PMAQI
15th Jul 20251812 AMAQI
15th Jul 2025171 AMAQI
15th Jul 2025162 AMAQI
15th Jul 2025173 AMAQI
15th Jul 2025184 AMAQI
18°C15/20°C
15th Jul 2025175 AMAQI
15th Jul 2025176 AMAQI
15th Jul 2025187 AMAQI
15th Jul 2025188 AMAQI
15th Jul 2025199 AMAQI
15th Jul 20251810 AMAQI
15th Jul 20251811 AMAQI
15th Jul 20251812 PMAQI
15th Jul 2025181 PMAQI
15th Jul 2025182 PMAQI
15th Jul 2025183 PMAQI
15th Jul 2025184 PMAQI
15th Jul 2025185 PMAQI
15th Jul 2025186 PMAQI
15th Jul 2025187 PMAQI
15th Jul 2025188 PMAQI
15th Jul 2025189 PMAQI
15th Jul 20251810 PMAQI
15th Jul 20251811 PMAQI
16th Jul 20251812 AMAQI
16th Jul 2025171 AMAQI
16th Jul 2025182 AMAQI
16th Jul 2025263 AMAQI
16th Jul 2025314 AMAQI
22°C12/32°C
16th Jul 2025295 AMAQI
16th Jul 2025296 AMAQI
16th Jul 2025297 AMAQI
16th Jul 2025288 AMAQI
16th Jul 2025279 AMAQI
16th Jul 20252410 AMAQI
16th Jul 20252211 AMAQI
16th Jul 20252212 PMAQI
16th Jul 2025201 PMAQI
16th Jul 2025222 PMAQI
16th Jul 2025213 PMAQI
16th Jul 2025224 PMAQI
16th Jul 2025225 PMAQI
16th Jul 2025246 PMAQI
16th Jul 2025217 PMAQI
16th Jul 2025208 PMAQI
16th Jul 2025219 PMAQI
16th Jul 20252010 PMAQI
16th Jul 20252111 PMAQI
17th Jul 20252312 AMAQI
17th Jul 2025241 AMAQI
17th Jul 2025272 AMAQI
17th Jul 2025293 AMAQI
17th Jul 2025304 AMAQI
26°C18/35°C
17th Jul 2025295 AMAQI
17th Jul 2025306 AMAQI
17th Jul 2025307 AMAQI
17th Jul 2025308 AMAQI
17th Jul 2025299 AMAQI
17th Jul 20252710 AMAQI
17th Jul 20252611 AMAQI
17th Jul 20252312 PMAQI
17th Jul 2025231 PMAQI
17th Jul 2025242 PMAQI
17th Jul 2025283 PMAQI
17th Jul 2025284 PMAQI
17th Jul 2025285 PMAQI
17th Jul 2025276 PMAQI
17th Jul 2025267 PMAQI
17th Jul 2025268 PMAQI
17th Jul 2025289 PMAQI
17th Jul 20252810 PMAQI
17th Jul 20252811 PMAQI
18th Jul 20252712 AMAQI
18th Jul 2025251 AMAQI
18th Jul 2025262 AMAQI
18th Jul 2025263 AMAQI
18th Jul 2025254 AMAQI
20°C13/30°C
18th Jul 2025245 AMAQI
18th Jul 2025246 AMAQI
18th Jul 2025267 AMAQI
18th Jul 2025268 AMAQI
18th Jul 2025269 AMAQI
18th Jul 20252310 AMAQI
18th Jul 20252011 AMAQI
18th Jul 20251812 PMAQI
18th Jul 2025141 PMAQI
18th Jul 2025182 PMAQI
18th Jul 2025223 PMAQI
18th Jul 2025224 PMAQI
18th Jul 2025225 PMAQI
18th Jul 2025216 PMAQI
18th Jul 2025247 PMAQI
18th Jul 2025228 PMAQI
18th Jul 2025249 PMAQI
18th Jul 20252010 PMAQI
18th Jul 20252011 PMAQI
19th Jul 20252112 AMAQI
19th Jul 2025191 AMAQI
19th Jul 2025212 AMAQI
19th Jul 2025213 AMAQI
19th Jul 2025204 AMAQI
16°C14/19°C
19th Jul 2025225 AMAQI
19th Jul 2025226 AMAQI
19th Jul 2025227 AMAQI
19th Jul 2025238 AMAQI
19th Jul 2025239 AMAQI
19th Jul 20252110 AMAQI
19th Jul 20252011 AMAQI
19th Jul 20252012 PMAQI
19th Jul 2025191 PMAQI
19th Jul 2025192 PMAQI
19th Jul 2025203 PMAQI
19th Jul 2025204 PMAQI
19th Jul 2025225 PMAQI
19th Jul 2025206 PMAQI
19th Jul 2025207 PMAQI
19th Jul 2025208 PMAQI
19th Jul 2025219 PMAQI
19th Jul 20252010 PMAQI
19th Jul 20252011 PMAQI
20th Jul 20252012 AMAQI
20th Jul 2025171 AMAQI
20th Jul 2025162 AMAQI
20th Jul 2025153 AMAQI
20th Jul 2025144 AMAQI
16°C12/21°C
20th Jul 2025145 AMAQI
20th Jul 2025156 AMAQI
20th Jul 2025167 AMAQI
20th Jul 2025178 AMAQI
20th Jul 2025179 AMAQI
20th Jul 20251810 AMAQI
20th Jul 20251811 AMAQI
20th Jul 20251712 PMAQI
20th Jul 2025171 PMAQI
20th Jul 2025182 PMAQI
20th Jul 2025183 PMAQI
20th Jul 2025194 PMAQI
20th Jul 2025195 PMAQI
20th Jul 2025186 PMAQI
20th Jul 2025197 PMAQI
20th Jul 2025188 PMAQI
20th Jul 2025189 PMAQI
20th Jul 20251910 PMAQI
20th Jul 20251811 PMAQI
21st Jul 20251912 AMAQI
21st Jul 2025221 AMAQI
21st Jul 2025222 AMAQI
21st Jul 2025223 AMAQI
21st Jul 2025214 AMAQI
15°C12/19°C
21st Jul 2025215 AMAQI
21st Jul 2025236 AMAQI
21st Jul 2025247 AMAQI
21st Jul 2025248 AMAQI
21st Jul 2025249 AMAQI
21st Jul 20252310 AMAQI
21st Jul 20252811 AMAQI
21st Jul 20252212 PMAQI
21st Jul 2025211 PMAQI
21st Jul 2025222 PMAQI
21st Jul 2025233 PMAQI
21st Jul 2025234 PMAQI
21st Jul 2025225 PMAQI
21st Jul 2025226 PMAQI
21st Jul 2025227 PMAQI
21st Jul 2025228 PMAQI
21st Jul 2025229 PMAQI
21st Jul 20252210 PMAQI
21st Jul 20252211 PMAQI
22nd Jul 20252212 AMAQI
22nd Jul 2025181 AMAQI
22nd Jul 2025182 AMAQI
22nd Jul 2025183 AMAQI
22nd Jul 2025174 AMAQI
17°C13/22°C
22nd Jul 2025175 AMAQI
22nd Jul 2025166 AMAQI
22nd Jul 2025167 AMAQI
22nd Jul 2025168 AMAQI
22nd Jul 2025169 AMAQI
22nd Jul 20251510 AMAQI
22nd Jul 20251411 AMAQI
22nd Jul 20251512 PMAQI
22nd Jul 2025141 PMAQI
22nd Jul 2025152 PMAQI
22nd Jul 2025153 PMAQI
22nd Jul 2025164 PMAQI
22nd Jul 2025175 PMAQI
22nd Jul 2025166 PMAQI
22nd Jul 2025177 PMAQI
22nd Jul 2025188 PMAQI
22nd Jul 2025189 PMAQI
22nd Jul 20251710 PMAQI
22nd Jul 20251711 PMAQI
23rd Jul 20251712 AMAQI
23rd Jul 2025141 AMAQI
23rd Jul 2025152 AMAQI
23rd Jul 2025143 AMAQI
23rd Jul 2025144 AMAQI
17°C13/21°C
23rd Jul 2025135 AMAQI
23rd Jul 2025136 AMAQI
23rd Jul 2025137 AMAQI
23rd Jul 2025148 AMAQI
23rd Jul 2025159 AMAQI
23rd Jul 20251610 AMAQI
23rd Jul 20251611 AMAQI
23rd Jul 20251712 PMAQI
23rd Jul 2025171 PMAQI
23rd Jul 2025172 PMAQI
23rd Jul 2025163 PMAQI
23rd Jul 2025184 PMAQI
23rd Jul 2025175 PMAQI
23rd Jul 2025166 PMAQI
23rd Jul 2025187 PMAQI
23rd Jul 2025178 PMAQI
23rd Jul 2025179 PMAQI
23rd Jul 20251710 PMAQI
23rd Jul 20251811 PMAQI
24th Jul 20251812 AMAQI
24th Jul 2025161 AMAQI
24th Jul 2025162 AMAQI
24th Jul 2025163 AMAQI
24th Jul 2025164 AMAQI
20°C14/29°C
24th Jul 2025155 AMAQI
24th Jul 2025146 AMAQI
24th Jul 2025167 AMAQI
24th Jul 2025148 AMAQI
24th Jul 2025149 AMAQI
24th Jul 20251510 AMAQI
24th Jul 20251511 AMAQI
24th Jul 20251712 PMAQI
24th Jul 2025141 PMAQI
24th Jul 2025162 PMAQI
24th Jul 2025163 PMAQI
24th Jul 2025174 PMAQI
24th Jul 2025165 PMAQI
24th Jul 2025166 PMAQI
24th Jul 2025167 PMAQI
24th Jul 2025168 PMAQI
24th Jul 2025169 PMAQI
24th Jul 20251710 PMAQI
24th Jul 20251711 PMAQI
25th Jul 20251812 AMAQI
25th Jul 2025171 AMAQI
25th Jul 2025172 AMAQI
25th Jul 2025163 AMAQI
25th Jul 2025144 AMAQI
16°C13/21°C
25th Jul 2025145 AMAQI
25th Jul 2025136 AMAQI
25th Jul 2025147 AMAQI
25th Jul 2025148 AMAQI
25th Jul 2025149 AMAQI
25th Jul 20251410 AMAQI
25th Jul 20251411 AMAQI
25th Jul 20251412 PMAQI
25th Jul 2025141 PMAQI
25th Jul 2025152 PMAQI
25th Jul 2025163 PMAQI
25th Jul 2025174 PMAQI
25th Jul 2025165 PMAQI
25th Jul 2025176 PMAQI
25th Jul 2025167 PMAQI
25th Jul 2025168 PMAQI
25th Jul 2025189 PMAQI
25th Jul 20251710 PMAQI
25th Jul 20251611 PMAQI
26th Jul 20251812 AMAQI
26th Jul 2025181 AMAQI
26th Jul 2025222 AMAQI
26th Jul 2025223 AMAQI
26th Jul 2025204 AMAQI
16°C13/21°C
26th Jul 2025185 AMAQI
26th Jul 2025186 AMAQI
26th Jul 2025177 AMAQI
26th Jul 2025188 AMAQI
26th Jul 2025189 AMAQI
26th Jul 20251910 AMAQI
26th Jul 20251811 AMAQI
26th Jul 20251812 PMAQI
26th Jul 2025181 PMAQI
26th Jul 2025222 PMAQI
26th Jul 2025183 PMAQI
26th Jul 2025184 PMAQI
26th Jul 2025175 PMAQI
26th Jul 2025166 PMAQI
26th Jul 2025187 PMAQI
26th Jul 2025198 PMAQI
26th Jul 2025189 PMAQI
26th Jul 20251810 PMAQI
26th Jul 20251911 PMAQI
27th Jul 20251912 AMAQI
27th Jul 2025201 AMAQI
27th Jul 2025222 AMAQI
27th Jul 2025233 AMAQI
27th Jul 2025224 AMAQI
16°C12/21°C
27th Jul 2025225 AMAQI
27th Jul 2025216 AMAQI
27th Jul 2025227 AMAQI
27th Jul 2025228 AMAQI
27th Jul 2025229 AMAQI
27th Jul 20252210 AMAQI
27th Jul 20252011 AMAQI
27th Jul 20251812 PMAQI
27th Jul 2025161 PMAQI
27th Jul 2025182 PMAQI
27th Jul 2025193 PMAQI
27th Jul 2025204 PMAQI
27th Jul 2025195 PMAQI
27th Jul 2025196 PMAQI
27th Jul 2025197 PMAQI
27th Jul 2025188 PMAQI
27th Jul 2025199 PMAQI
27th Jul 20251810 PMAQI
27th Jul 20251911 PMAQI
28th Jul 20251912 AMAQI
28th Jul 2025171 AMAQI
28th Jul 2025182 AMAQI
28th Jul 2025203 AMAQI
28th Jul 2025224 AMAQI
17°C12/25°C
28th Jul 2025215 AMAQI
28th Jul 2025216 AMAQI
28th Jul 2025217 AMAQI
28th Jul 2025228 AMAQI
28th Jul 2025229 AMAQI
28th Jul 20252210 AMAQI
28th Jul 20252111 AMAQI
28th Jul 20251912 PMAQI
28th Jul 2025181 PMAQI
28th Jul 2025192 PMAQI
28th Jul 2025213 PMAQI
28th Jul 2025204 PMAQI
28th Jul 2025205 PMAQI
28th Jul 2025206 PMAQI
28th Jul 2025207 PMAQI
28th Jul 2025208 PMAQI
28th Jul 2025199 PMAQI
28th Jul 20251910 PMAQI
28th Jul 20251911 PMAQI
29th Jul 20251812 AMAQI
29th Jul 2025161 AMAQI
29th Jul 2025162 AMAQI
29th Jul 2025163 AMAQI
29th Jul 2025164 AMAQI
20°C13/28°C
29th Jul 2025195 AMAQI
29th Jul 2025196 AMAQI
29th Jul 2025197 AMAQI
29th Jul 2025208 AMAQI
29th Jul 2025209 AMAQI
29th Jul 20252110 AMAQI
29th Jul 20252011 AMAQI
29th Jul 20252012 PMAQI
29th Jul 2025211 PMAQI
29th Jul 2025202 PMAQI
29th Jul 2025203 PMAQI
29th Jul 2025204 PMAQI
29th Jul 2025205 PMAQI
29th Jul 2025206 PMAQI
29th Jul 2025207 PMAQI
29th Jul 2025208 PMAQI
29th Jul 2025199 PMAQI
29th Jul 20252010 PMAQI
29th Jul 20252111 PMAQI
30th Jul 20252512 AMAQI
30th Jul 2025331 AMAQI
30th Jul 2025242 AMAQI
30th Jul 2025223 AMAQI
30th Jul 2025184 AMAQI
22°C13/31°C
30th Jul 2025185 AMAQI
30th Jul 2025206 AMAQI
30th Jul 2025217 AMAQI
30th Jul 2025218 AMAQI
30th Jul 2025219 AMAQI
30th Jul 20252010 AMAQI
30th Jul 20251811 AMAQI
30th Jul 20251812 PMAQI
30th Jul 2025171 PMAQI
30th Jul 2025182 PMAQI
30th Jul 2025183 PMAQI
30th Jul 2025184 PMAQI
30th Jul 2025185 PMAQI
30th Jul 2025186 PMAQI
30th Jul 2025187 PMAQI
30th Jul 2025188 PMAQI
30th Jul 2025259 PMAQI
30th Jul 20252210 PMAQI
30th Jul 20252311 PMAQI
31st Jul 20252712 AMAQI
31st Jul 2025201 AMAQI
31st Jul 2025172 AMAQI
31st Jul 2025163 AMAQI
31st Jul 2025154 AMAQI
22°C14/31°C
31st Jul 2025135 AMAQI
31st Jul 2025166 AMAQI
31st Jul 2025177 AMAQI
31st Jul 2025168 AMAQI
31st Jul 2025179 AMAQI
31st Jul 20251710 AMAQI
31st Jul 20251911 AMAQI
31st Jul 20252212 PMAQI
31st Jul 2025221 PMAQI
31st Jul 2025212 PMAQI
31st Jul 2025203 PMAQI
31st Jul 2025194 PMAQI
31st Jul 2025195 PMAQI
31st Jul 2025196 PMAQI
31st Jul 2025227 PMAQI
31st Jul 2025208 PMAQI
31st Jul 2025199 PMAQI
31st Jul 20252310 PMAQI
31st Jul 20252411 PMAQI
1st Aug 20252012 AMAQI
1st Aug 2025201 AMAQI
1st Aug 2025192 AMAQI
1st Aug 2025163 AMAQI
1st Aug 2025174 AMAQI
19°C15/27°C
1st Aug 2025175 AMAQI
1st Aug 2025156 AMAQI
1st Aug 2025167 AMAQI
1st Aug 2025158 AMAQI
1st Aug 2025169 AMAQI
1st Aug 20251610 AMAQI
1st Aug 20251711 AMAQI
1st Aug 20251612 PMAQI
1st Aug 2025161 PMAQI
1st Aug 2025172 PMAQI
1st Aug 2025173 PMAQI
1st Aug 2025164 PMAQI
1st Aug 2025175 PMAQI
1st Aug 2025166 PMAQI
1st Aug 2025187 PMAQI
1st Aug 2025208 PMAQI
1st Aug 2025289 PMAQI
1st Aug 20253110 PMAQI
1st Aug 20252611 PMAQI
2nd Aug 20252112 AMAQI
2nd Aug 2025181 AMAQI
2nd Aug 2025172 AMAQI
2nd Aug 2025173 AMAQI
2nd Aug 2025184 AMAQI
18°C14/23°C
2nd Aug 2025175 AMAQI
5 AM2nd Aug 2025166 AMAQI
2nd Aug 2025157 AMAQI
2nd Aug 2025158 AMAQI
2nd Aug 2025149 AMAQI
2nd Aug 20251410 AMAQI
2nd Aug 20251411 AMAQI
2nd Aug 20251412 PMAQI
2nd Aug 2025141 PMAQI
1 PM2nd Aug 2025132 PMAQI
2nd Aug 2025143 PMAQI
2nd Aug 2025154 PMAQI
2nd Aug 2025145 PMAQI
2nd Aug 2025156 PMAQI
2nd Aug 2025167 PMAQI
9 PM
1 AM
4 AM
18°C16/22°C
Day time
Avg. Highest Time
5 AM - 11 AM
24AQI
7 hours / Day
210 hours / Month
Avg. Lowest Time
12 PM - 9 PM
21AQI
10 hours / Day
300 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 11 AM (Avg. 24), while the lowest AQI was between 12 PM to 9 PM (Avg. 21).
Night time
Avg. Highest Time
1 AM - 11 PM
22AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
12 AM
21AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 11 PM (Avg. 22), while the lowest AQI was between 12 AM to 12 AM (Avg. 21).
2025 Days Vs Air Quality
Lacey, Washington, United States
2025
96%
204
4%
9
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Good
204 DaysModerate
9 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 215 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
Lacey, Washington, 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
31AQI
31AQI
2nd January 2025
34AQI
34AQI
3rd January 2025
25AQI
25AQI
4th January 2025
26AQI
26AQI
5th January 2025
20AQI
20AQI
6th January 2025
20AQI
20AQI
7th January 2025
25AQI
25AQI
8th January 2025
25AQI
25AQI
9th January 2025
26AQI
26AQI
10th January 2025
25AQI
25AQI
11th January 2025
23AQI
23AQI
12th January 2025
32AQI
32AQI
13th January 2025
36AQI
36AQI
14th January 2025
37AQI
37AQI
15th January 2025
40AQI
40AQI
16th January 2025
30AQI
30AQI
17th January 2025
34AQI
34AQI
18th January 2025
46AQI
46AQI
19th January 2025
53AQI
53AQI
20th January 2025
49AQI
49AQI
21st January 2025
53AQI
53AQI
22nd January 2025
57AQI
57AQI
23rd January 2025
55AQI
55AQI
24th January 2025
49AQI
49AQI
25th January 2025
51AQI
51AQI
26th January 2025
54AQI
54AQI
27th January 2025
58AQI
58AQI
28th January 2025
56AQI
56AQI
29th January 2025
57AQI
57AQI
30th January 2025
50AQI
50AQI
31st January 2025
31AQI
31AQI
1st February 2025
19AQI
19AQI
2nd February 2025
22AQI
22AQI
3rd February 2025
26AQI
26AQI
4th February 2025
34AQI
34AQI
5th February 2025
22AQI
22AQI
6th February 2025
22AQI
22AQI
7th February 2025
23AQI
23AQI
8th February 2025
28AQI
28AQI
9th February 2025
33AQI
33AQI
10th February 2025
32AQI
32AQI
11th February 2025
24AQI
24AQI
12th February 2025
40AQI
40AQI
13th February 2025
24AQI
24AQI
14th February 2025
26AQI
26AQI
15th February 2025
29AQI
29AQI
16th February 2025
25AQI
25AQI
17th February 2025
20AQI
20AQI
18th February 2025
20AQI
20AQI
19th February 2025
23AQI
23AQI
20th February 2025
20AQI
20AQI
21st February 2025
25AQI
25AQI
22nd February 2025
21AQI
21AQI
23rd February 2025
17AQI
17AQI
24th February 2025
21AQI
21AQI
25th February 2025
18AQI
18AQI
26th February 2025
25AQI
25AQI
27th February 2025
29AQI
29AQI
28th February 2025
27AQI
27AQI
1st March 2025
34AQI
34AQI
2nd March 2025
29AQI
29AQI
3rd March 2025
19AQI
19AQI
4th March 2025
21AQI
21AQI
5th March 2025
22AQI
22AQI
6th March 2025
32AQI
32AQI
7th March 2025
29AQI
29AQI
8th March 2025
27AQI
27AQI
9th March 2025
26AQI
26AQI
10th March 2025
21AQI
21AQI
11th March 2025
23AQI
23AQI
12th March 2025
18AQI
18AQI
13th March 2025
16AQI
16AQI
14th March 2025
18AQI
18AQI
15th March 2025
17AQI
17AQI
16th March 2025
18AQI
18AQI
17th March 2025
18AQI
18AQI
18th March 2025
17AQI
17AQI
19th March 2025
21AQI
21AQI
20th March 2025
14AQI
14AQI
21st March 2025
16AQI
16AQI
22nd March 2025
16AQI
16AQI
23rd March 2025
17AQI
17AQI
24th March 2025
17AQI
17AQI
25th March 2025
20AQI
20AQI
26th March 2025
20AQI
20AQI
27th March 2025
16AQI
16AQI
28th March 2025
16AQI
16AQI
29th March 2025
17AQI
17AQI
30th March 2025
23AQI
23AQI
31st March 2025
16AQI
16AQI
1st April 2025
17AQI
17AQI
2nd April 2025
18AQI
18AQI
3rd April 2025
18AQI
18AQI
4th April 2025
30AQI
30AQI
5th April 2025
36AQI
36AQI
6th April 2025
19AQI
19AQI
7th April 2025
15AQI
15AQI
8th April 2025
15AQI
15AQI
9th April 2025
14AQI
14AQI
10th April 2025
22AQI
22AQI
11th April 2025
17AQI
17AQI
12th April 2025
18AQI
18AQI
13th April 2025
24AQI
24AQI
14th April 2025
23AQI
23AQI
15th April 2025
20AQI
20AQI
16th April 2025
21AQI
21AQI
17th April 2025
25AQI
25AQI
18th April 2025
26AQI
26AQI
19th April 2025
22AQI
22AQI
20th April 2025
15AQI
15AQI
21st April 2025
14AQI
14AQI
22nd April 2025
16AQI
16AQI
23rd April 2025
20AQI
20AQI
24th April 2025
27AQI
27AQI
25th April 2025
40AQI
40AQI
26th April 2025
39AQI
39AQI
27th April 2025
36AQI
36AQI
28th April 2025
26AQI
26AQI
29th April 2025
13AQI
13AQI
30th April 2025
15AQI
15AQI
1st May 2025
21AQI
21AQI
2nd May 2025
20AQI
20AQI
3rd May 2025
14AQI
14AQI
4th May 2025
15AQI
15AQI
5th May 2025
20AQI
20AQI
6th May 2025
21AQI
21AQI
7th May 2025
17AQI
17AQI
8th May 2025
18AQI
18AQI
9th May 2025
21AQI
21AQI
10th May 2025
19AQI
19AQI
11th May 2025
17AQI
17AQI
12th May 2025
15AQI
15AQI
13th May 2025
20AQI
20AQI
14th May 2025
20AQI
20AQI
15th May 2025
20AQI
20AQI
16th May 2025
15AQI
15AQI
17th May 2025
14AQI
14AQI
18th May 2025
13AQI
13AQI
19th May 2025
13AQI
13AQI
20th May 2025
12AQI
12AQI
21st May 2025
13AQI
13AQI
22nd May 2025
15AQI
15AQI
23rd May 2025
14AQI
14AQI
24th May 2025
15AQI
15AQI
25th May 2025
14AQI
14AQI
26th May 2025
14AQI
14AQI
27th May 2025
15AQI
15AQI
28th May 2025
20AQI
20AQI
29th May 2025
14AQI
14AQI
30th May 2025
17AQI
17AQI
31st May 2025
19AQI
19AQI
1st June 2025
18AQI
18AQI
2nd June 2025
18AQI
18AQI
3rd June 2025
20AQI
20AQI
4th June 2025
15AQI
15AQI
5th June 2025
18AQI
18AQI
6th June 2025
21AQI
21AQI
7th June 2025
20AQI
20AQI
8th June 2025
28AQI
28AQI
9th June 2025
29AQI
29AQI
10th June 2025
35AQI
35AQI
11th June 2025
35AQI
35AQI
12th June 2025
31AQI
31AQI
13th June 2025
23AQI
23AQI
14th June 2025
20AQI
20AQI
15th June 2025
20AQI
20AQI
16th June 2025
19AQI
19AQI
17th June 2025
18AQI
18AQI
18th June 2025
17AQI
17AQI
19th June 2025
18AQI
18AQI
20th June 2025
15AQI
15AQI
21st June 2025
13AQI
13AQI
22nd June 2025
12AQI
12AQI
23rd June 2025
16AQI
16AQI
24th June 2025
32AQI
32AQI
25th June 2025
23AQI
23AQI
26th June 2025
15AQI
15AQI
27th June 2025
13AQI
13AQI
28th June 2025
13AQI
13AQI
29th June 2025
17AQI
17AQI
30th June 2025
20AQI
20AQI
1st July 2025
18AQI
18AQI
2nd July 2025
14AQI
14AQI
3rd July 2025
14AQI
14AQI
4th July 2025
18AQI
18AQI
5th July 2025
23AQI
23AQI
6th July 2025
23AQI
23AQI
7th July 2025
28AQI
28AQI
8th July 2025
28AQI
28AQI
9th July 2025
19AQI
19AQI
10th July 2025
23AQI
23AQI
11th July 2025
30AQI
30AQI
12th July 2025
45AQI
45AQI
13th July 2025
41AQI
41AQI
14th July 2025
19AQI
19AQI
15th July 2025
18AQI
18AQI
16th July 2025
23AQI
23AQI
17th July 2025
27AQI
27AQI
18th July 2025
23AQI
23AQI
19th July 2025
21AQI
21AQI
20th July 2025
17AQI
17AQI
21st July 2025
22AQI
22AQI
22nd July 2025
17AQI
17AQI
23rd July 2025
16AQI
16AQI
24th July 2025
16AQI
16AQI
25th July 2025
16AQI
16AQI
26th July 2025
19AQI
19AQI
27th July 2025
20AQI
20AQI
28th July 2025
20AQI
20AQI
29th July 2025
19AQI
19AQI
30th July 2025
21AQI
21AQI
31st July 2025
19AQI
19AQI
1st August 2025
18AQI
18AQI
39AQI
25AQI
20AQI
22AQI
17AQI
20AQI
22AQI
18AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202524AQI
22
9
28
31
30
31
30
31
1
204
9
Highest AQI recorded in
January39AQI
Lowest AQI recorded in
May17AQI
202421AQI
30
1
29
31
30
31
30
30
1
31
29
1
31
28
2
31
361
5
Highest AQI recorded in
December29AQI
Lowest AQI recorded in
March13AQI
202323AQI
31
28
31
30
31
30
30
1
27
4
30
31
27
2
31
357
7
Highest AQI recorded in
August28AQI
Lowest AQI recorded in
March14AQI
202230AQI
29
1
22
31
17
31
30
22
1
27
2
16
13
2
18
10
2
31
275
26
4
Highest AQI recorded in
November49AQI
Lowest AQI recorded in
July19AQI
202123AQI
27
3
28
31
30
29
2
28
2
31
29
1
1
30
31
30
31
355
8
1
Highest AQI recorded in
August29AQI
Lowest AQI recorded in
February18AQI
202030AQI
3
20
18
30
31
31
19
4
4
3
29
1
29
1
29
2
239
8
4
3
Highest AQI recorded in
September70AQI
Lowest AQI recorded in
June19AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2022(Avg.)
30AQILeast Polluted Year Recorded
2024(Avg.)
21AQILacey's annual 2025 AQI (24) shows an average percentage change of -5.3% (improved AQI) compared to previous years: 2020 (30), 2021 (23), 2022 (30), 2023 (23), 2024 (21).
