North Portland, Portland, Oregon, 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
North Portland, Portland, Oregon, United States
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
5th Aug 2025
34AQILowest AQI recorded on
2nd Aug 2025
16AQISame Day Analysis (10th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 23 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 10th Aug - 11th Aug 2025
North Portland, Portland, Oregon, United States
AQI
Day
Night
.
5 AM10th Aug 2025
8 PM
4 AM11th Aug 2025
Day time
Avg. Highest Time
3PM10th Aug
27AQI
Avg. Lowest Time
10AM10th Aug
21AQI
Night time
Avg. Highest Time
9PM10th Aug
25AQI
Avg. Lowest Time
3AM11th Aug
22AQI
In the last 24 hours,
North Portland's AQI reached its highest point of 27 at 3 PM during the Day, while the lowest point, 21, was recorded at 10 AM during the Day between 10th Aug and 11th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
North Portland, Portland, Oregon, United States
JulAug
12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th
Day
Night
12th Jul 2025185 AMAQI
12th Jul 2025166 AMAQI
12th Jul 2025187 AMAQI
12th Jul 2025208 AMAQI
12th Jul 2025179 AMAQI
12th Jul 20251810 AMAQI
12th Jul 20251811 AMAQI
12th Jul 20251712 PMAQI
12th Jul 2025161 PMAQI
12th Jul 2025182 PMAQI
12th Jul 2025173 PMAQI
12th Jul 2025174 PMAQI
12th Jul 2025185 PMAQI
12th Jul 2025176 PMAQI
12th Jul 2025187 PMAQI
12th Jul 2025188 PMAQI
12th Jul 2025189 PMAQI
12th Jul 20251810 PMAQI
12th Jul 20251911 PMAQI
13th Jul 20251912 AMAQI
13th Jul 2025211 AMAQI
13th Jul 2025182 AMAQI
13th Jul 2025173 AMAQI
13th Jul 2025194 AMAQI
23°C16/32°C
13th Jul 2025195 AMAQI
13th Jul 2025226 AMAQI
13th Jul 2025207 AMAQI
13th Jul 2025208 AMAQI
13th Jul 2025199 AMAQI
13th Jul 20251910 AMAQI
13th Jul 20252011 AMAQI
13th Jul 20252112 PMAQI
13th Jul 2025211 PMAQI
13th Jul 2025202 PMAQI
13th Jul 2025193 PMAQI
13th Jul 2025194 PMAQI
13th Jul 2025195 PMAQI
13th Jul 2025196 PMAQI
13th Jul 2025187 PMAQI
13th Jul 2025228 PMAQI
13th Jul 2025199 PMAQI
13th Jul 20251810 PMAQI
13th Jul 20251911 PMAQI
14th Jul 20252012 AMAQI
14th Jul 2025181 AMAQI
14th Jul 2025162 AMAQI
14th Jul 2025163 AMAQI
14th Jul 2025154 AMAQI
26°C18/36°C
14th Jul 2025165 AMAQI
14th Jul 2025166 AMAQI
14th Jul 2025167 AMAQI
14th Jul 2025168 AMAQI
14th Jul 2025169 AMAQI
14th Jul 20251510 AMAQI
14th Jul 20251411 AMAQI
14th Jul 20251412 PMAQI
14th Jul 2025141 PMAQI
14th Jul 2025152 PMAQI
14th Jul 2025143 PMAQI
14th Jul 2025144 PMAQI
14th Jul 2025145 PMAQI
14th Jul 2025156 PMAQI
14th Jul 2025147 PMAQI
14th Jul 2025158 PMAQI
14th Jul 2025169 PMAQI
14th Jul 20251710 PMAQI
14th Jul 20251611 PMAQI
15th Jul 20251612 AMAQI
15th Jul 2025181 AMAQI
15th Jul 2025162 AMAQI
15th Jul 2025163 AMAQI
15th Jul 2025164 AMAQI
19°C16/25°C
15th Jul 2025165 AMAQI
15th Jul 2025166 AMAQI
15th Jul 2025177 AMAQI
15th Jul 2025178 AMAQI
15th Jul 2025179 AMAQI
15th Jul 20251710 AMAQI
15th Jul 20251711 AMAQI
15th Jul 20251812 PMAQI
15th Jul 2025191 PMAQI
15th Jul 2025202 PMAQI
15th Jul 2025203 PMAQI
15th Jul 2025204 PMAQI
15th Jul 2025195 PMAQI
15th Jul 2025216 PMAQI
15th Jul 2025187 PMAQI
15th Jul 2025198 PMAQI
15th Jul 2025219 PMAQI
15th Jul 20252110 PMAQI
15th Jul 20252011 PMAQI
16th Jul 20252012 AMAQI
16th Jul 2025201 AMAQI
16th Jul 2025222 AMAQI
16th Jul 2025203 AMAQI
16th Jul 2025214 AMAQI
23°C13/34°C
16th Jul 2025215 AMAQI
16th Jul 2025226 AMAQI
16th Jul 2025207 AMAQI
16th Jul 2025218 AMAQI
16th Jul 2025229 AMAQI
16th Jul 20252310 AMAQI
16th Jul 20252311 AMAQI
16th Jul 20252412 PMAQI
16th Jul 2025241 PMAQI
16th Jul 2025242 PMAQI
16th Jul 2025243 PMAQI
16th Jul 2025244 PMAQI
16th Jul 2025245 PMAQI
16th Jul 2025236 PMAQI
16th Jul 2025227 PMAQI
16th Jul 2025218 PMAQI
16th Jul 2025199 PMAQI
16th Jul 20252010 PMAQI
16th Jul 20252111 PMAQI
17th Jul 20252212 AMAQI
17th Jul 2025211 AMAQI
17th Jul 2025222 AMAQI
17th Jul 2025243 AMAQI
17th Jul 2025284 AMAQI
28°C20/37°C
17th Jul 2025285 AMAQI
17th Jul 2025306 AMAQI
17th Jul 2025307 AMAQI
17th Jul 2025298 AMAQI
17th Jul 2025309 AMAQI
17th Jul 20252810 AMAQI
17th Jul 20252811 AMAQI
17th Jul 20252612 PMAQI
17th Jul 2025261 PMAQI
17th Jul 2025282 PMAQI
17th Jul 2025283 PMAQI
17th Jul 2025284 PMAQI
17th Jul 2025295 PMAQI
17th Jul 2025286 PMAQI
17th Jul 2025277 PMAQI
17th Jul 2025268 PMAQI
17th Jul 2025259 PMAQI
17th Jul 20252410 PMAQI
17th Jul 20252311 PMAQI
18th Jul 20252412 AMAQI
18th Jul 2025241 AMAQI
18th Jul 2025262 AMAQI
18th Jul 2025263 AMAQI
18th Jul 2025264 AMAQI
23°C15/31°C
18th Jul 2025255 AMAQI
18th Jul 2025266 AMAQI
18th Jul 2025267 AMAQI
18th Jul 2025268 AMAQI
18th Jul 2025289 AMAQI
18th Jul 20252810 AMAQI
18th Jul 20252811 AMAQI
18th Jul 20252812 PMAQI
18th Jul 2025301 PMAQI
18th Jul 2025302 PMAQI
18th Jul 2025293 PMAQI
18th Jul 2025294 PMAQI
18th Jul 2025285 PMAQI
18th Jul 2025266 PMAQI
18th Jul 2025247 PMAQI
18th Jul 2025248 PMAQI
18th Jul 2025209 PMAQI
18th Jul 20252010 PMAQI
18th Jul 20252011 PMAQI
19th Jul 20252012 AMAQI
19th Jul 2025181 AMAQI
19th Jul 2025182 AMAQI
19th Jul 2025183 AMAQI
19th Jul 2025164 AMAQI
20°C16/27°C
19th Jul 2025165 AMAQI
19th Jul 2025166 AMAQI
19th Jul 2025177 AMAQI
19th Jul 2025188 AMAQI
19th Jul 2025189 AMAQI
19th Jul 20251810 AMAQI
19th Jul 20251611 AMAQI
19th Jul 20251712 PMAQI
19th Jul 2025181 PMAQI
19th Jul 2025182 PMAQI
19th Jul 2025193 PMAQI
19th Jul 2025204 PMAQI
19th Jul 2025205 PMAQI
19th Jul 2025206 PMAQI
19th Jul 2025197 PMAQI
19th Jul 2025208 PMAQI
19th Jul 2025229 PMAQI
19th Jul 20252210 PMAQI
19th Jul 20252211 PMAQI
20th Jul 20252212 AMAQI
20th Jul 2025201 AMAQI
20th Jul 2025202 AMAQI
20th Jul 2025203 AMAQI
20th Jul 2025204 AMAQI
18°C14/23°C
20th Jul 2025185 AMAQI
20th Jul 2025186 AMAQI
20th Jul 2025187 AMAQI
20th Jul 2025188 AMAQI
20th Jul 2025189 AMAQI
20th Jul 20251810 AMAQI
20th Jul 20251811 AMAQI
20th Jul 20251812 PMAQI
20th Jul 2025171 PMAQI
20th Jul 2025182 PMAQI
20th Jul 2025193 PMAQI
20th Jul 2025204 PMAQI
20th Jul 2025195 PMAQI
20th Jul 2025186 PMAQI
20th Jul 2025207 PMAQI
20th Jul 2025198 PMAQI
20th Jul 2025199 PMAQI
20th Jul 20252010 PMAQI
20th Jul 20251911 PMAQI
21st Jul 20252012 AMAQI
21st Jul 2025201 AMAQI
21st Jul 2025202 AMAQI
21st Jul 2025203 AMAQI
21st Jul 2025194 AMAQI
17°C13/21°C
21st Jul 2025185 AMAQI
21st Jul 2025186 AMAQI
21st Jul 2025197 AMAQI
21st Jul 2025208 AMAQI
21st Jul 2025199 AMAQI
21st Jul 20251910 AMAQI
21st Jul 20252011 AMAQI
21st Jul 20252212 PMAQI
21st Jul 2025221 PMAQI
21st Jul 2025222 PMAQI
21st Jul 2025223 PMAQI
21st Jul 2025224 PMAQI
21st Jul 2025225 PMAQI
21st Jul 2025226 PMAQI
21st Jul 2025217 PMAQI
21st Jul 2025228 PMAQI
21st Jul 2025229 PMAQI
21st Jul 20252210 PMAQI
21st Jul 20252211 PMAQI
22nd Jul 20252212 AMAQI
22nd Jul 2025221 AMAQI
22nd Jul 2025212 AMAQI
22nd Jul 2025203 AMAQI
22nd Jul 2025214 AMAQI
19°C15/23°C
22nd Jul 2025205 AMAQI
22nd Jul 2025216 AMAQI
22nd Jul 2025227 AMAQI
22nd Jul 2025228 AMAQI
22nd Jul 2025229 AMAQI
22nd Jul 20252310 AMAQI
22nd Jul 20252211 AMAQI
22nd Jul 20252312 PMAQI
22nd Jul 2025231 PMAQI
22nd Jul 2025242 PMAQI
22nd Jul 2025233 PMAQI
22nd Jul 2025234 PMAQI
22nd Jul 2025215 PMAQI
22nd Jul 2025206 PMAQI
22nd Jul 2025217 PMAQI
22nd Jul 2025228 PMAQI
22nd Jul 2025219 PMAQI
22nd Jul 20252010 PMAQI
22nd Jul 20251911 PMAQI
23rd Jul 20252012 AMAQI
23rd Jul 2025201 AMAQI
23rd Jul 2025192 AMAQI
23rd Jul 2025203 AMAQI
23rd Jul 2025194 AMAQI
20°C14/28°C
23rd Jul 2025185 AMAQI
23rd Jul 2025176 AMAQI
23rd Jul 2025177 AMAQI
23rd Jul 2025168 AMAQI
23rd Jul 2025189 AMAQI
23rd Jul 20252010 AMAQI
23rd Jul 20252211 AMAQI
23rd Jul 20252212 PMAQI
23rd Jul 2025221 PMAQI
23rd Jul 2025232 PMAQI
23rd Jul 2025233 PMAQI
23rd Jul 2025234 PMAQI
23rd Jul 2025215 PMAQI
23rd Jul 2025206 PMAQI
23rd Jul 2025207 PMAQI
23rd Jul 2025218 PMAQI
23rd Jul 2025209 PMAQI
23rd Jul 20251910 PMAQI
23rd Jul 20251811 PMAQI
24th Jul 20251812 AMAQI
24th Jul 2025171 AMAQI
24th Jul 2025162 AMAQI
24th Jul 2025163 AMAQI
24th Jul 2025164 AMAQI
22°C15/33°C
24th Jul 2025185 AMAQI
24th Jul 2025186 AMAQI
24th Jul 2025177 AMAQI
24th Jul 2025188 AMAQI
24th Jul 2025189 AMAQI
24th Jul 20251710 AMAQI
24th Jul 20252011 AMAQI
24th Jul 20251912 PMAQI
24th Jul 2025221 PMAQI
24th Jul 2025212 PMAQI
24th Jul 2025223 PMAQI
24th Jul 2025214 PMAQI
24th Jul 2025215 PMAQI
24th Jul 2025216 PMAQI
24th Jul 2025207 PMAQI
24th Jul 2025198 PMAQI
24th Jul 2025179 PMAQI
24th Jul 20251710 PMAQI
24th Jul 20251711 PMAQI
25th Jul 20251712 AMAQI
25th Jul 2025161 AMAQI
25th Jul 2025172 AMAQI
25th Jul 2025163 AMAQI
25th Jul 2025174 AMAQI
20°C15/30°C
25th Jul 2025175 AMAQI
25th Jul 2025186 AMAQI
25th Jul 2025177 AMAQI
25th Jul 2025168 AMAQI
25th Jul 2025169 AMAQI
25th Jul 20251410 AMAQI
25th Jul 20251611 AMAQI
25th Jul 20251512 PMAQI
25th Jul 2025161 PMAQI
25th Jul 2025162 PMAQI
25th Jul 2025163 PMAQI
25th Jul 2025164 PMAQI
25th Jul 2025175 PMAQI
25th Jul 2025176 PMAQI
25th Jul 2025167 PMAQI
25th Jul 2025168 PMAQI
25th Jul 2025169 PMAQI
25th Jul 20251610 PMAQI
25th Jul 20251611 PMAQI
26th Jul 20251712 AMAQI
26th Jul 2025161 AMAQI
26th Jul 2025162 AMAQI
26th Jul 2025153 AMAQI
26th Jul 2025154 AMAQI
18°C14/22°C
26th Jul 2025155 AMAQI
26th Jul 2025146 AMAQI
26th Jul 2025147 AMAQI
26th Jul 2025158 AMAQI
26th Jul 2025169 AMAQI
26th Jul 20251510 AMAQI
26th Jul 20251411 AMAQI
26th Jul 20251612 PMAQI
26th Jul 2025161 PMAQI
26th Jul 2025162 PMAQI
26th Jul 2025163 PMAQI
26th Jul 2025174 PMAQI
26th Jul 2025175 PMAQI
26th Jul 2025166 PMAQI
26th Jul 2025177 PMAQI
26th Jul 2025168 PMAQI
26th Jul 2025189 PMAQI
26th Jul 20251710 PMAQI
26th Jul 20251811 PMAQI
27th Jul 20251812 AMAQI
27th Jul 2025181 AMAQI
27th Jul 2025202 AMAQI
27th Jul 2025203 AMAQI
27th Jul 2025204 AMAQI
17°C12/21°C
27th Jul 2025225 AMAQI
27th Jul 2025226 AMAQI
27th Jul 2025227 AMAQI
27th Jul 2025218 AMAQI
27th Jul 2025249 AMAQI
27th Jul 20252510 AMAQI
27th Jul 20252111 AMAQI
27th Jul 20252112 PMAQI
27th Jul 2025211 PMAQI
27th Jul 2025202 PMAQI
27th Jul 2025203 PMAQI
27th Jul 2025224 PMAQI
27th Jul 2025205 PMAQI
27th Jul 2025216 PMAQI
27th Jul 2025207 PMAQI
27th Jul 2025198 PMAQI
27th Jul 2025209 PMAQI
27th Jul 20251810 PMAQI
27th Jul 20252011 PMAQI
28th Jul 20251912 AMAQI
28th Jul 2025191 AMAQI
28th Jul 2025202 AMAQI
28th Jul 2025213 AMAQI
28th Jul 2025214 AMAQI
19°C13/27°C
28th Jul 2025215 AMAQI
28th Jul 2025216 AMAQI
28th Jul 2025207 AMAQI
28th Jul 2025228 AMAQI
28th Jul 2025229 AMAQI
28th Jul 20252110 AMAQI
28th Jul 20252111 AMAQI
28th Jul 20252112 PMAQI
28th Jul 2025221 PMAQI
28th Jul 2025212 PMAQI
28th Jul 2025223 PMAQI
28th Jul 2025214 PMAQI
28th Jul 2025215 PMAQI
28th Jul 2025216 PMAQI
28th Jul 2025217 PMAQI
28th Jul 2025218 PMAQI
28th Jul 2025199 PMAQI
28th Jul 20252010 PMAQI
28th Jul 20251911 PMAQI
29th Jul 20251712 AMAQI
29th Jul 2025171 AMAQI
29th Jul 2025172 AMAQI
29th Jul 2025163 AMAQI
29th Jul 2025184 AMAQI
21°C13/31°C
29th Jul 2025175 AMAQI
29th Jul 2025166 AMAQI
29th Jul 2025177 AMAQI
29th Jul 2025178 AMAQI
29th Jul 2025179 AMAQI
29th Jul 20251810 AMAQI
29th Jul 20251811 AMAQI
29th Jul 20251712 PMAQI
29th Jul 2025181 PMAQI
29th Jul 2025192 PMAQI
29th Jul 2025193 PMAQI
29th Jul 2025204 PMAQI
29th Jul 2025195 PMAQI
29th Jul 2025196 PMAQI
29th Jul 2025197 PMAQI
29th Jul 2025188 PMAQI
29th Jul 2025199 PMAQI
29th Jul 20251910 PMAQI
29th Jul 20252011 PMAQI
30th Jul 20252212 AMAQI
30th Jul 2025231 AMAQI
30th Jul 2025232 AMAQI
30th Jul 2025233 AMAQI
30th Jul 2025224 AMAQI
24°C15/34°C
30th Jul 2025215 AMAQI
30th Jul 2025196 AMAQI
30th Jul 2025207 AMAQI
30th Jul 2025188 AMAQI
30th Jul 2025179 AMAQI
30th Jul 20251710 AMAQI
30th Jul 20251611 AMAQI
30th Jul 20251712 PMAQI
30th Jul 2025181 PMAQI
30th Jul 2025192 PMAQI
30th Jul 2025193 PMAQI
30th Jul 2025194 PMAQI
30th Jul 2025195 PMAQI
30th Jul 2025196 PMAQI
30th Jul 2025197 PMAQI
30th Jul 2025198 PMAQI
30th Jul 2025229 PMAQI
30th Jul 20252410 PMAQI
30th Jul 20252311 PMAQI
31st Jul 20252212 AMAQI
31st Jul 2025221 AMAQI
31st Jul 2025202 AMAQI
31st Jul 2025173 AMAQI
31st Jul 2025164 AMAQI
22°C16/32°C
31st Jul 2025155 AMAQI
31st Jul 2025166 AMAQI
31st Jul 2025227 AMAQI
31st Jul 2025208 AMAQI
31st Jul 2025199 AMAQI
31st Jul 20252410 AMAQI
31st Jul 20252511 AMAQI
31st Jul 20252912 PMAQI
31st Jul 2025301 PMAQI
31st Jul 2025242 PMAQI
31st Jul 2025243 PMAQI
31st Jul 2025224 PMAQI
31st Jul 2025215 PMAQI
31st Jul 2025206 PMAQI
31st Jul 2025277 PMAQI
31st Jul 2025238 PMAQI
31st Jul 2025209 PMAQI
31st Jul 20251810 PMAQI
31st Jul 20252011 PMAQI
1st Aug 20251912 AMAQI
1st Aug 2025191 AMAQI
1st Aug 2025182 AMAQI
1st Aug 2025183 AMAQI
1st Aug 2025184 AMAQI
20°C16/29°C
1st Aug 2025195 AMAQI
1st Aug 2025166 AMAQI
1st Aug 2025147 AMAQI
1st Aug 2025158 AMAQI
1st Aug 2025159 AMAQI
1st Aug 20251510 AMAQI
1st Aug 20251611 AMAQI
1st Aug 20251512 PMAQI
1st Aug 2025171 PMAQI
1st Aug 2025172 PMAQI
1st Aug 2025183 PMAQI
1st Aug 2025164 PMAQI
1st Aug 2025175 PMAQI
1st Aug 2025166 PMAQI
1st Aug 2025187 PMAQI
1st Aug 2025188 PMAQI
1st Aug 2025189 PMAQI
1st Aug 20251810 PMAQI
1st Aug 20251811 PMAQI
2nd Aug 20252012 AMAQI
2nd Aug 2025181 AMAQI
2nd Aug 2025162 AMAQI
2nd Aug 2025173 AMAQI
2nd Aug 2025204 AMAQI
20°C16/29°C
2nd Aug 2025175 AMAQI
2nd Aug 2025166 AMAQI
2nd Aug 2025157 AMAQI
2nd Aug 2025148 AMAQI
2nd Aug 2025149 AMAQI
2nd Aug 20251410 AMAQI
2nd Aug 20251411 AMAQI
2nd Aug 20251312 PMAQI
2nd Aug 2025141 PMAQI
2nd Aug 2025132 PMAQI
2nd Aug 2025143 PMAQI
2nd Aug 2025154 PMAQI
2nd Aug 2025145 PMAQI
2nd Aug 2025136 PMAQI
2nd Aug 2025177 PMAQI
2nd Aug 2025168 PMAQI
2nd Aug 2025179 PMAQI
2nd Aug 20251810 PMAQI
2nd Aug 20251811 PMAQI
3rd Aug 20252012 AMAQI
3rd Aug 2025181 AMAQI
3rd Aug 2025212 AMAQI
3rd Aug 2025213 AMAQI
3rd Aug 2025204 AMAQI
19°C16/22°C
3rd Aug 2025195 AMAQI
3rd Aug 2025186 AMAQI
3rd Aug 2025187 AMAQI
3rd Aug 2025178 AMAQI
3rd Aug 2025189 AMAQI
3rd Aug 20251710 AMAQI
3rd Aug 20251811 AMAQI
3rd Aug 20251612 PMAQI
3rd Aug 2025161 PMAQI
3rd Aug 2025172 PMAQI
3rd Aug 2025183 PMAQI
3rd Aug 2025194 PMAQI
3rd Aug 2025205 PMAQI
3rd Aug 2025206 PMAQI
3rd Aug 2025207 PMAQI
3rd Aug 2025208 PMAQI
3rd Aug 2025219 PMAQI
3rd Aug 20252110 PMAQI
3rd Aug 20252111 PMAQI
4th Aug 20252312 AMAQI
4th Aug 2025211 AMAQI
4th Aug 2025222 AMAQI
4th Aug 2025223 AMAQI
4th Aug 2025224 AMAQI
18°C14/22°C
4th Aug 2025205 AMAQI
4th Aug 2025206 AMAQI
4th Aug 2025217 AMAQI
4th Aug 2025208 AMAQI
4th Aug 2025209 AMAQI
4th Aug 20252010 AMAQI
4th Aug 20252011 AMAQI
4th Aug 20252112 PMAQI
4th Aug 2025201 PMAQI
4th Aug 2025202 PMAQI
4th Aug 2025213 PMAQI
4th Aug 2025234 PMAQI
4th Aug 2025255 PMAQI
4th Aug 2025286 PMAQI
4th Aug 2025217 PMAQI
4th Aug 2025288 PMAQI
4th Aug 2025389 PMAQI
4th Aug 20254110 PMAQI
4th Aug 20254511 PMAQI
5th Aug 20254312 AMAQI
5th Aug 2025381 AMAQI
5th Aug 2025352 AMAQI
5th Aug 2025343 AMAQI
5th Aug 2025344 AMAQI
18°C14/24°C
5th Aug 2025355 AMAQI
5th Aug 2025346 AMAQI
5th Aug 2025357 AMAQI
5th Aug 2025328 AMAQI
5th Aug 2025329 AMAQI
5th Aug 20253410 AMAQI
5th Aug 20253011 AMAQI
5th Aug 20253212 PMAQI
5th Aug 2025331 PMAQI
5th Aug 2025362 PMAQI
5th Aug 2025383 PMAQI
5th Aug 2025384 PMAQI
5th Aug 2025375 PMAQI
5th Aug 2025376 PMAQI
5th Aug 2025367 PMAQI
5th Aug 2025328 PMAQI
5th Aug 2025309 PMAQI
5th Aug 20253010 PMAQI
5th Aug 20253011 PMAQI
6th Aug 20252612 AMAQI
6th Aug 2025251 AMAQI
6th Aug 2025222 AMAQI
6th Aug 2025193 AMAQI
6th Aug 2025194 AMAQI
20°C14/27°C
6th Aug 2025195 AMAQI
6th Aug 2025196 AMAQI
6th Aug 2025197 AMAQI
6th Aug 2025198 AMAQI
6th Aug 2025199 AMAQI
6th Aug 20251910 AMAQI
6th Aug 20252011 AMAQI
6th Aug 20251812 PMAQI
6th Aug 2025201 PMAQI
6th Aug 2025182 PMAQI
6th Aug 2025193 PMAQI
6th Aug 2025184 PMAQI
6th Aug 2025165 PMAQI
6th Aug 2025156 PMAQI
6th Aug 2025197 PMAQI
6th Aug 2025178 PMAQI
6th Aug 2025169 PMAQI
6th Aug 20251410 PMAQI
6th Aug 20251811 PMAQI
7th Aug 20251812 AMAQI
7th Aug 2025171 AMAQI
7th Aug 2025172 AMAQI
7th Aug 2025173 AMAQI
7th Aug 2025144 AMAQI
20°C16/23°C
7th Aug 2025155 AMAQI
7th Aug 2025146 AMAQI
7th Aug 2025167 AMAQI
7th Aug 2025148 AMAQI
7th Aug 2025169 AMAQI
7th Aug 20251610 AMAQI
7th Aug 20251611 AMAQI
7th Aug 20251612 PMAQI
7th Aug 2025161 PMAQI
7th Aug 2025162 PMAQI
7th Aug 2025163 PMAQI
7th Aug 2025174 PMAQI
7th Aug 2025175 PMAQI
7th Aug 2025176 PMAQI
7th Aug 2025157 PMAQI
7th Aug 2025158 PMAQI
7th Aug 2025169 PMAQI
7th Aug 20251710 PMAQI
7th Aug 20251811 PMAQI
8th Aug 20251812 AMAQI
8th Aug 2025171 AMAQI
8th Aug 2025162 AMAQI
8th Aug 2025163 AMAQI
8th Aug 2025164 AMAQI
19°C15/23°C
8th Aug 2025155 AMAQI
8th Aug 2025156 AMAQI
8th Aug 2025177 AMAQI
8th Aug 2025178 AMAQI
8th Aug 2025169 AMAQI
8th Aug 20251610 AMAQI
8th Aug 20251511 AMAQI
8th Aug 20251712 PMAQI
8th Aug 2025161 PMAQI
8th Aug 2025172 PMAQI
8th Aug 2025173 PMAQI
8th Aug 2025194 PMAQI
8th Aug 2025185 PMAQI
8th Aug 2025196 PMAQI
8th Aug 2025177 PMAQI
8th Aug 2025168 PMAQI
8th Aug 2025209 PMAQI
8th Aug 20251810 PMAQI
8th Aug 20251911 PMAQI
9th Aug 20251912 AMAQI
9th Aug 2025181 AMAQI
9th Aug 2025192 AMAQI
9th Aug 2025203 AMAQI
9th Aug 2025194 AMAQI
20°C13/29°C
9th Aug 2025175 AMAQI
9th Aug 2025186 AMAQI
9th Aug 2025187 AMAQI
9th Aug 2025178 AMAQI
9th Aug 2025179 AMAQI
9th Aug 20251810 AMAQI
9th Aug 20251811 AMAQI
9th Aug 20252112 PMAQI
9th Aug 2025181 PMAQI
9th Aug 2025182 PMAQI
9th Aug 2025193 PMAQI
9th Aug 2025194 PMAQI
9th Aug 2025195 PMAQI
9th Aug 2025196 PMAQI
9th Aug 2025197 PMAQI
9th Aug 2025188 PMAQI
9th Aug 2025219 PMAQI
9th Aug 20252210 PMAQI
9th Aug 20252211 PMAQI
10th Aug 20252212 AMAQI
10th Aug 2025221 AMAQI
10th Aug 2025222 AMAQI
10th Aug 2025233 AMAQI
10th Aug 2025224 AMAQI
22°C15/31°C
10th Aug 2025225 AMAQI
10th Aug 2025226 AMAQI
10th Aug 2025227 AMAQI
10th Aug 2025228 AMAQI
10th Aug 2025219 AMAQI
10th Aug 20252110 AMAQI
10th Aug 20252211 AMAQI
10th Aug 20252412 PMAQI
10th Aug 2025261 PMAQI
10th Aug 2025262 PMAQI
10th Aug 2025273 PMAQI
10th Aug 2025264 PMAQI
10th Aug 2025255 PMAQI
10th Aug 2025256 PMAQI
10th Aug 2025247 PMAQI
10th Aug 2025238 PMAQI
10th Aug 2025259 PMAQI
10th Aug 20252410 PMAQI
10th Aug 20252511 PMAQI
11th Aug 20252412 AMAQI
11th Aug 2025231 AMAQI
11th Aug 2025232 AMAQI
11th Aug 2025223 AMAQI
11th Aug 2025254 AMAQI
27°C18/38°C
11th Aug 2025235 AMAQI
5 AM11th Aug 2025246 AMAQI
11th Aug 2025247 AMAQI
12 PM
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 PM
20AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 6 AM
19AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 PM (Avg. 20), while the lowest AQI was between 5 AM to 6 AM (Avg. 19).
Night time
Avg. Highest Time
12 AM - 11 PM
20AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
20AQI
8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 20), while the lowest AQI was between 12 AM to 11 PM (Avg. 20).
2025 Days Vs Air Quality
North Portland, Portland, Oregon, United States
2025
100%
138
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Good
138 DaysModerate
0 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2025, 100% of 223 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
North Portland, Portland, Oregon, 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 March 2025
18AQI
18AQI
2nd March 2025
16AQI
16AQI
3rd March 2025
16AQI
16AQI
4th March 2025
15AQI
15AQI
5th March 2025
18AQI
18AQI
6th March 2025
16AQI
16AQI
1st April 2025
22AQI
22AQI
2nd April 2025
17AQI
17AQI
3rd April 2025
18AQI
18AQI
4th April 2025
22AQI
22AQI
5th April 2025
18AQI
18AQI
6th April 2025
28AQI
28AQI
7th April 2025
16AQI
16AQI
8th April 2025
15AQI
15AQI
9th April 2025
16AQI
16AQI
10th April 2025
18AQI
18AQI
11th April 2025
17AQI
17AQI
12th April 2025
17AQI
17AQI
13th April 2025
20AQI
20AQI
14th April 2025
20AQI
20AQI
15th April 2025
20AQI
20AQI
16th April 2025
20AQI
20AQI
17th April 2025
20AQI
20AQI
18th April 2025
21AQI
21AQI
19th April 2025
21AQI
21AQI
20th April 2025
17AQI
17AQI
21st April 2025
14AQI
14AQI
22nd April 2025
14AQI
14AQI
23rd April 2025
17AQI
17AQI
24th April 2025
23AQI
23AQI
25th April 2025
28AQI
28AQI
26th April 2025
24AQI
24AQI
27th April 2025
18AQI
18AQI
28th April 2025
14AQI
14AQI
29th April 2025
14AQI
14AQI
30th April 2025
16AQI
16AQI
1st May 2025
24AQI
24AQI
2nd May 2025
23AQI
23AQI
3rd May 2025
13AQI
13AQI
4th May 2025
14AQI
14AQI
5th May 2025
16AQI
16AQI
6th May 2025
19AQI
19AQI
7th May 2025
19AQI
19AQI
8th May 2025
17AQI
17AQI
9th May 2025
20AQI
20AQI
10th May 2025
20AQI
20AQI
11th May 2025
14AQI
14AQI
12th May 2025
16AQI
16AQI
13th May 2025
16AQI
16AQI
14th May 2025
17AQI
17AQI
15th May 2025
17AQI
17AQI
16th May 2025
19AQI
19AQI
17th May 2025
18AQI
18AQI
18th May 2025
13AQI
13AQI
19th May 2025
15AQI
15AQI
20th May 2025
12AQI
12AQI
21st May 2025
13AQI
13AQI
22nd May 2025
17AQI
17AQI
23rd May 2025
15AQI
15AQI
24th May 2025
16AQI
16AQI
25th May 2025
16AQI
16AQI
26th May 2025
14AQI
14AQI
27th May 2025
15AQI
15AQI
28th May 2025
19AQI
19AQI
29th May 2025
14AQI
14AQI
30th May 2025
17AQI
17AQI
31st May 2025
17AQI
17AQI
1st June 2025
14AQI
14AQI
2nd June 2025
17AQI
17AQI
3rd June 2025
19AQI
19AQI
4th June 2025
15AQI
15AQI
5th June 2025
16AQI
16AQI
6th June 2025
18AQI
18AQI
7th June 2025
18AQI
18AQI
8th June 2025
24AQI
24AQI
9th June 2025
27AQI
27AQI
10th June 2025
26AQI
26AQI
11th June 2025
28AQI
28AQI
12th June 2025
25AQI
25AQI
13th June 2025
18AQI
18AQI
14th June 2025
18AQI
18AQI
15th June 2025
20AQI
20AQI
16th June 2025
20AQI
20AQI
17th June 2025
18AQI
18AQI
18th June 2025
15AQI
15AQI
19th June 2025
15AQI
15AQI
20th June 2025
15AQI
15AQI
21st June 2025
13AQI
13AQI
22nd June 2025
14AQI
14AQI
23rd June 2025
22AQI
22AQI
24th June 2025
29AQI
29AQI
25th June 2025
29AQI
29AQI
26th June 2025
16AQI
16AQI
27th June 2025
14AQI
14AQI
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
16AQI
16AQI
5th July 2025
20AQI
20AQI
6th July 2025
17AQI
17AQI
7th July 2025
18AQI
18AQI
8th July 2025
20AQI
20AQI
9th July 2025
15AQI
15AQI
10th July 2025
15AQI
15AQI
11th July 2025
18AQI
18AQI
12th July 2025
18AQI
18AQI
13th July 2025
19AQI
19AQI
14th July 2025
16AQI
16AQI
15th July 2025
18AQI
18AQI
16th July 2025
22AQI
22AQI
17th July 2025
26AQI
26AQI
18th July 2025
25AQI
25AQI
19th July 2025
19AQI
19AQI
20th July 2025
19AQI
19AQI
21st July 2025
21AQI
21AQI
22nd July 2025
21AQI
21AQI
23rd July 2025
20AQI
20AQI
24th July 2025
18AQI
18AQI
25th July 2025
16AQI
16AQI
26th July 2025
16AQI
16AQI
27th July 2025
20AQI
20AQI
28th July 2025
21AQI
21AQI
29th July 2025
18AQI
18AQI
30th July 2025
20AQI
20AQI
31st July 2025
21AQI
21AQI
1st August 2025
17AQI
17AQI
2nd August 2025
16AQI
16AQI
3rd August 2025
19AQI
19AQI
4th August 2025
25AQI
25AQI
5th August 2025
34AQI
34AQI
6th August 2025
19AQI
19AQI
7th August 2025
16AQI
16AQI
8th August 2025
17AQI
17AQI
9th August 2025
19AQI
19AQI
10th August 2025
23AQI
23AQI
17AQI
19AQI
17AQI
19AQI
19AQI
21AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202518AQI
6
30
31
30
31
10
138
Highest AQI recorded in
August21AQI
Lowest AQI recorded in
March17AQI
Most & Least Polluted Years Over the Last 1 Years
Most Polluted Year Recorded
2025(Avg.)
18AQILeast Polluted Year Recorded
2025(Avg.)
18AQINorth Portland's annual 2025 AQI (18) shows an average percentage change of NaN% (improved AQI) compared to previous years: .
