Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Gresham, 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

Gresham, Oregon, United States

2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
1st Aug 2025
19AQI
Lowest AQI recorded on
1st Aug 2025
19AQI

Same Day Analysis (1st August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 19 of Good air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 1st Aug - 2nd Aug 2025

Gresham, Oregon, United States

AQI
Day
Night
.

5 AM1st Aug 2025

8 PM

4 AM2nd Aug 2025

Day time
Avg. Highest Time
4PM1st Aug

21AQI

Avg. Lowest Time
10AM1st Aug

15AQI

Night time
Avg. Highest Time
1AM2nd Aug

20AQI

Avg. Lowest Time
4AM2nd Aug

18AQI

In the last 24 hours,

Gresham's AQI reached its highest point of 21 at 4 PM during the Day, while the lowest point, 15, was recorded at 10 AM during the Day between 1st Aug and 2nd Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Gresham, Oregon, 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 2025145 AMAQI
3rd Jul 2025136 AMAQI
3rd Jul 2025147 AMAQI
3rd Jul 2025138 AMAQI
3rd Jul 2025149 AMAQI
3rd Jul 20251410 AMAQI
3rd Jul 20251411 AMAQI
3rd Jul 20251412 PMAQI
3rd Jul 2025141 PMAQI
3rd Jul 2025142 PMAQI
3rd Jul 2025143 PMAQI
3rd Jul 2025144 PMAQI
3rd Jul 2025145 PMAQI
3rd Jul 2025156 PMAQI
3rd Jul 2025147 PMAQI
3rd Jul 2025148 PMAQI
3rd Jul 2025159 PMAQI
3rd Jul 20251410 PMAQI
3rd Jul 20251411 PMAQI
4th Jul 20251312 AMAQI
4th Jul 2025151 AMAQI
4th Jul 2025162 AMAQI
4th Jul 2025143 AMAQI
4th Jul 2025144 AMAQI

18°C13/25°C

4th Jul 2025165 AMAQI
4th Jul 2025166 AMAQI
4th Jul 2025167 AMAQI
4th Jul 2025168 AMAQI
4th Jul 2025179 AMAQI
4th Jul 20251610 AMAQI
4th Jul 20251611 AMAQI
4th Jul 20251612 PMAQI
4th Jul 2025141 PMAQI
4th Jul 2025162 PMAQI
4th Jul 2025173 PMAQI
4th Jul 2025164 PMAQI
4th Jul 2025175 PMAQI
4th Jul 2025176 PMAQI
4th Jul 2025157 PMAQI
4th Jul 2025168 PMAQI
4th Jul 2025179 PMAQI
4th Jul 20251710 PMAQI
4th Jul 20251811 PMAQI
5th Jul 20252412 AMAQI
5th Jul 2025341 AMAQI
5th Jul 2025292 AMAQI
5th Jul 2025333 AMAQI
5th Jul 2025374 AMAQI

17°C12/22°C

5th Jul 2025405 AMAQI
5th Jul 2025326 AMAQI
5th Jul 2025257 AMAQI
5th Jul 2025238 AMAQI
5th Jul 2025209 AMAQI
5th Jul 20252010 AMAQI
5th Jul 20252011 AMAQI
5th Jul 20251812 PMAQI
5th Jul 2025181 PMAQI
5th Jul 2025182 PMAQI
5th Jul 2025203 PMAQI
5th Jul 2025184 PMAQI
5th Jul 2025195 PMAQI
5th Jul 2025196 PMAQI
5th Jul 2025187 PMAQI
5th Jul 2025178 PMAQI
5th Jul 2025179 PMAQI
5th Jul 20251610 PMAQI
5th Jul 20251711 PMAQI
6th Jul 20251612 AMAQI
6th Jul 2025161 AMAQI
6th Jul 2025162 AMAQI
6th Jul 2025163 AMAQI
6th Jul 2025164 AMAQI

18°C12/25°C

6th Jul 2025155 AMAQI
6th Jul 2025166 AMAQI
6th Jul 2025187 AMAQI
6th Jul 2025178 AMAQI
6th Jul 2025189 AMAQI
6th Jul 20251710 AMAQI
6th Jul 20251711 AMAQI
6th Jul 20251612 PMAQI
6th Jul 2025171 PMAQI
6th Jul 2025182 PMAQI
6th Jul 2025173 PMAQI
6th Jul 2025174 PMAQI
6th Jul 2025175 PMAQI
6th Jul 2025176 PMAQI
6th Jul 2025167 PMAQI
6th Jul 2025168 PMAQI
6th Jul 2025159 PMAQI
6th Jul 20251610 PMAQI
6th Jul 20251611 PMAQI
7th Jul 20251712 AMAQI
7th Jul 2025161 AMAQI
7th Jul 2025162 AMAQI
7th Jul 2025173 AMAQI
7th Jul 2025174 AMAQI

21°C14/29°C

7th Jul 2025175 AMAQI
7th Jul 2025176 AMAQI
7th Jul 2025187 AMAQI
7th Jul 2025188 AMAQI
7th Jul 2025179 AMAQI
7th Jul 20251710 AMAQI
7th Jul 20251711 AMAQI
7th Jul 20251812 PMAQI
7th Jul 2025181 PMAQI
7th Jul 2025182 PMAQI
7th Jul 2025183 PMAQI
7th Jul 2025184 PMAQI
7th Jul 2025175 PMAQI
7th Jul 2025186 PMAQI
7th Jul 2025177 PMAQI
7th Jul 2025168 PMAQI
7th Jul 2025179 PMAQI
7th Jul 20251810 PMAQI
7th Jul 20251811 PMAQI
8th Jul 20251812 AMAQI
8th Jul 2025181 AMAQI
8th Jul 2025212 AMAQI
8th Jul 2025213 AMAQI
8th Jul 2025204 AMAQI

24°C15/32°C

8th Jul 2025205 AMAQI
8th Jul 2025216 AMAQI
8th Jul 2025237 AMAQI
8th Jul 2025208 AMAQI
8th Jul 2025209 AMAQI
8th Jul 20251910 AMAQI
8th Jul 20251911 AMAQI
8th Jul 20251912 PMAQI
8th Jul 2025191 PMAQI
8th Jul 2025202 PMAQI
8th Jul 2025193 PMAQI
8th Jul 2025194 PMAQI
8th Jul 2025185 PMAQI
8th Jul 2025186 PMAQI
8th Jul 2025207 PMAQI
8th Jul 2025188 PMAQI
8th Jul 2025189 PMAQI
8th Jul 20251710 PMAQI
8th Jul 20251811 PMAQI
9th Jul 20251812 AMAQI
9th Jul 2025161 AMAQI
9th Jul 2025152 AMAQI
9th Jul 2025163 AMAQI
9th Jul 2025144 AMAQI

24°C17/32°C

9th Jul 2025145 AMAQI
9th Jul 2025136 AMAQI
9th Jul 2025147 AMAQI
9th Jul 2025148 AMAQI
9th Jul 2025149 AMAQI
9th Jul 20251410 AMAQI
9th Jul 20251411 AMAQI
9th Jul 20251412 PMAQI
9th Jul 2025141 PMAQI
9th Jul 2025132 PMAQI
9th Jul 2025143 PMAQI
9th Jul 2025144 PMAQI
9th Jul 2025155 PMAQI
9th Jul 2025166 PMAQI
9th Jul 2025157 PMAQI
9th Jul 2025168 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 2025143 AMAQI
10th Jul 2025134 AMAQI

20°C16/25°C

10th Jul 2025135 AMAQI
10th Jul 2025146 AMAQI
10th Jul 2025137 AMAQI
10th Jul 2025138 AMAQI
10th Jul 2025149 AMAQI
10th Jul 20251410 AMAQI
10th Jul 20251411 AMAQI
10th Jul 20251412 PMAQI
10th Jul 2025121 PMAQI
10th Jul 2025132 PMAQI
10th Jul 2025143 PMAQI
10th Jul 2025144 PMAQI
10th Jul 2025145 PMAQI
10th Jul 2025146 PMAQI
10th Jul 2025147 PMAQI
10th Jul 2025158 PMAQI
10th Jul 2025149 PMAQI
10th Jul 20251410 PMAQI
10th Jul 20251511 PMAQI
11th Jul 20251512 AMAQI
11th Jul 2025141 AMAQI
11th Jul 2025142 AMAQI
11th Jul 2025143 AMAQI
11th Jul 2025154 AMAQI

20°C17/26°C

11th Jul 2025165 AMAQI
11th Jul 2025166 AMAQI
11th Jul 2025167 AMAQI
11th Jul 2025168 AMAQI
11th Jul 2025169 AMAQI
11th Jul 20251710 AMAQI
11th Jul 20251711 AMAQI
11th Jul 20251712 PMAQI
11th Jul 2025171 PMAQI
11th Jul 2025182 PMAQI
11th Jul 2025183 PMAQI
11th Jul 2025184 PMAQI
11th Jul 2025175 PMAQI
11th Jul 2025186 PMAQI
11th Jul 2025187 PMAQI
11th Jul 2025188 PMAQI
11th Jul 2025179 PMAQI
11th Jul 20251910 PMAQI
11th Jul 20251611 PMAQI
12th Jul 20251412 AMAQI
12th Jul 2025161 AMAQI
12th Jul 2025162 AMAQI
12th Jul 2025163 AMAQI
12th Jul 2025164 AMAQI

23°C15/32°C

12th Jul 2025165 AMAQI
12th Jul 2025156 AMAQI
12th Jul 2025177 AMAQI
12th Jul 2025188 AMAQI
12th Jul 2025179 AMAQI
12th Jul 20251710 AMAQI
12th Jul 20251611 AMAQI
12th Jul 20251512 PMAQI
12th Jul 2025161 PMAQI
12th Jul 2025162 PMAQI
12th Jul 2025173 PMAQI
12th Jul 2025184 PMAQI
12th Jul 2025195 PMAQI
12th Jul 2025176 PMAQI
12th Jul 2025187 PMAQI
12th Jul 2025188 PMAQI
12th Jul 2025179 PMAQI
12th Jul 20251810 PMAQI
12th Jul 20251811 PMAQI
13th Jul 20251712 AMAQI
13th Jul 2025161 AMAQI
13th Jul 2025162 AMAQI
13th Jul 2025153 AMAQI
13th Jul 2025184 AMAQI

24°C17/31°C

13th Jul 2025175 AMAQI
13th Jul 2025206 AMAQI
13th Jul 2025187 AMAQI
13th Jul 2025188 AMAQI
13th Jul 2025199 AMAQI
13th Jul 20251810 AMAQI
13th Jul 20252011 AMAQI
13th Jul 20252012 PMAQI
13th Jul 2025201 PMAQI
13th Jul 2025192 PMAQI
13th Jul 2025183 PMAQI
13th Jul 2025184 PMAQI
13th Jul 2025185 PMAQI
13th Jul 2025186 PMAQI
13th Jul 2025187 PMAQI
13th Jul 2025188 PMAQI
13th Jul 2025179 PMAQI
13th Jul 20251610 PMAQI
13th Jul 20251811 PMAQI
14th Jul 20251812 AMAQI
14th Jul 2025161 AMAQI
14th Jul 2025162 AMAQI
14th Jul 2025153 AMAQI
14th Jul 2025164 AMAQI

26°C18/35°C

14th Jul 2025155 AMAQI
14th Jul 2025156 AMAQI
14th Jul 2025167 AMAQI
14th Jul 2025168 AMAQI
14th Jul 2025159 AMAQI
14th Jul 20251510 AMAQI
14th Jul 20251611 AMAQI
14th Jul 20251512 PMAQI
14th Jul 2025141 PMAQI
14th Jul 2025162 PMAQI
14th Jul 2025143 PMAQI
14th Jul 2025144 PMAQI
14th Jul 2025145 PMAQI
14th Jul 2025156 PMAQI
14th Jul 2025167 PMAQI
14th Jul 2025158 PMAQI
14th Jul 2025169 PMAQI
14th Jul 20251810 PMAQI
14th Jul 20251611 PMAQI
15th Jul 20251612 AMAQI
15th Jul 2025161 AMAQI
15th Jul 2025162 AMAQI
15th Jul 2025153 AMAQI
15th Jul 2025164 AMAQI

20°C16/26°C

15th Jul 2025165 AMAQI
15th Jul 2025166 AMAQI
15th Jul 2025177 AMAQI
15th Jul 2025178 AMAQI
15th Jul 2025189 AMAQI
15th Jul 20251810 AMAQI
15th Jul 20251811 AMAQI
15th Jul 20251812 PMAQI
15th Jul 2025171 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 20251711 PMAQI
16th Jul 20251812 AMAQI
16th Jul 2025181 AMAQI
16th Jul 2025172 AMAQI
16th Jul 2025183 AMAQI
16th Jul 2025184 AMAQI

24°C13/34°C

16th Jul 2025215 AMAQI
16th Jul 2025186 AMAQI
16th Jul 2025177 AMAQI
16th Jul 2025198 AMAQI
16th Jul 2025189 AMAQI
16th Jul 20251910 AMAQI
16th Jul 20251911 AMAQI
16th Jul 20252112 PMAQI
16th Jul 2025221 PMAQI
16th Jul 2025222 PMAQI
16th Jul 2025223 PMAQI
16th Jul 2025224 PMAQI
16th Jul 2025225 PMAQI
16th Jul 2025226 PMAQI
16th Jul 2025207 PMAQI
16th Jul 2025188 PMAQI
16th Jul 2025189 PMAQI
16th Jul 20251810 PMAQI
16th Jul 20252011 PMAQI
17th Jul 20252012 AMAQI
17th Jul 2025201 AMAQI
17th Jul 2025212 AMAQI
17th Jul 2025233 AMAQI
17th Jul 2025244 AMAQI

28°C21/36°C

17th Jul 2025275 AMAQI
17th Jul 2025296 AMAQI
17th Jul 2025287 AMAQI
17th Jul 2025308 AMAQI
17th Jul 2025309 AMAQI
17th Jul 20252810 AMAQI
17th Jul 20252911 AMAQI
17th Jul 20252912 PMAQI
17th Jul 2025301 PMAQI
17th Jul 2025302 PMAQI
17th Jul 2025293 PMAQI
17th Jul 2025304 PMAQI
17th Jul 2025295 PMAQI
17th Jul 2025286 PMAQI
17th Jul 2025287 PMAQI
17th Jul 2025268 PMAQI
17th Jul 2025249 PMAQI
17th Jul 20252310 PMAQI
17th Jul 20252411 PMAQI
18th Jul 20252312 AMAQI
18th Jul 2025231 AMAQI
18th Jul 2025232 AMAQI
18th Jul 2025263 AMAQI
18th Jul 2025254 AMAQI

23°C16/30°C

18th Jul 2025285 AMAQI
18th Jul 2025286 AMAQI
18th Jul 2025287 AMAQI
18th Jul 2025298 AMAQI
18th Jul 2025309 AMAQI
18th Jul 20253310 AMAQI
18th Jul 20253011 AMAQI
18th Jul 20253012 PMAQI
18th Jul 2025291 PMAQI
18th Jul 2025302 PMAQI
18th Jul 2025303 PMAQI
18th Jul 2025294 PMAQI
18th Jul 2025295 PMAQI
18th Jul 2025266 PMAQI
18th Jul 2025257 PMAQI
18th Jul 2025228 PMAQI
18th Jul 2025209 PMAQI
18th Jul 20252010 PMAQI
18th Jul 20252011 PMAQI
19th Jul 20251912 AMAQI
19th Jul 2025181 AMAQI
19th Jul 2025182 AMAQI
19th Jul 2025183 AMAQI
19th Jul 2025164 AMAQI

21°C16/28°C

19th Jul 2025165 AMAQI
19th Jul 2025176 AMAQI
19th Jul 2025187 AMAQI
19th Jul 2025188 AMAQI
19th Jul 2025189 AMAQI
19th Jul 20251810 AMAQI
19th Jul 20251911 AMAQI
19th Jul 20252012 PMAQI
19th Jul 2025191 PMAQI
19th Jul 2025182 PMAQI
19th Jul 2025203 PMAQI
19th Jul 2025204 PMAQI
19th Jul 2025195 PMAQI
19th Jul 2025216 PMAQI
19th Jul 2025197 PMAQI
19th Jul 2025208 PMAQI
19th Jul 2025229 PMAQI
19th Jul 20252210 PMAQI
19th Jul 20252211 PMAQI
20th Jul 20252112 AMAQI
20th Jul 2025201 AMAQI
20th Jul 2025212 AMAQI
20th Jul 2025203 AMAQI
20th Jul 2025194 AMAQI

19°C14/27°C

20th Jul 2025165 AMAQI
20th Jul 2025166 AMAQI
20th Jul 2025177 AMAQI
20th Jul 2025178 AMAQI
20th Jul 2025179 AMAQI
20th Jul 20251710 AMAQI
20th Jul 20251711 AMAQI
20th Jul 20251712 PMAQI
20th Jul 2025171 PMAQI
20th Jul 2025172 PMAQI
20th Jul 2025183 PMAQI
20th Jul 2025184 PMAQI
20th Jul 2025185 PMAQI
20th Jul 2025186 PMAQI
20th Jul 2025187 PMAQI
20th Jul 2025188 PMAQI
20th Jul 2025199 PMAQI
20th Jul 20251910 PMAQI
20th Jul 20251811 PMAQI
21st Jul 20251912 AMAQI
21st Jul 2025201 AMAQI
21st Jul 2025202 AMAQI
21st Jul 2025193 AMAQI
21st Jul 2025194 AMAQI

18°C13/22°C

21st Jul 2025185 AMAQI
21st Jul 2025186 AMAQI
21st Jul 2025187 AMAQI
21st Jul 2025188 AMAQI
21st Jul 2025179 AMAQI
21st Jul 20251810 AMAQI
21st Jul 20251811 AMAQI
21st Jul 20251912 PMAQI
21st Jul 2025221 PMAQI
21st Jul 2025212 PMAQI
21st Jul 2025213 PMAQI
21st Jul 2025214 PMAQI
21st Jul 2025215 PMAQI
21st Jul 2025216 PMAQI
21st Jul 2025207 PMAQI
21st Jul 2025208 PMAQI
21st Jul 2025209 PMAQI
21st Jul 20252010 PMAQI
21st Jul 20252111 PMAQI
22nd Jul 20252112 AMAQI
22nd Jul 2025211 AMAQI
22nd Jul 2025212 AMAQI
22nd Jul 2025203 AMAQI
22nd Jul 2025194 AMAQI

19°C15/23°C

22nd Jul 2025195 AMAQI
22nd Jul 2025206 AMAQI
22nd Jul 2025217 AMAQI
22nd Jul 2025208 AMAQI
22nd Jul 2025219 AMAQI
22nd Jul 20252210 AMAQI
22nd Jul 20252311 AMAQI
22nd Jul 20252212 PMAQI
22nd Jul 2025221 PMAQI
22nd Jul 2025222 PMAQI
22nd Jul 2025223 PMAQI
22nd Jul 2025214 PMAQI
22nd Jul 2025205 PMAQI
22nd Jul 2025196 PMAQI
22nd Jul 2025207 PMAQI
22nd Jul 2025218 PMAQI
22nd Jul 2025209 PMAQI
22nd Jul 20252110 PMAQI
22nd Jul 20252011 PMAQI
23rd Jul 20252012 AMAQI
23rd Jul 2025211 AMAQI
23rd Jul 2025212 AMAQI
23rd Jul 2025183 AMAQI
23rd Jul 2025184 AMAQI

21°C14/28°C

23rd Jul 2025185 AMAQI
23rd Jul 2025186 AMAQI
23rd Jul 2025177 AMAQI
23rd Jul 2025168 AMAQI
23rd Jul 2025179 AMAQI
23rd Jul 20251810 AMAQI
23rd Jul 20252011 AMAQI
23rd Jul 20252012 PMAQI
23rd Jul 2025191 PMAQI
23rd Jul 2025202 PMAQI
23rd Jul 2025203 PMAQI
23rd Jul 2025204 PMAQI
23rd Jul 2025205 PMAQI
23rd Jul 2025186 PMAQI
23rd Jul 2025197 PMAQI
23rd Jul 2025198 PMAQI
23rd Jul 2025179 PMAQI
23rd Jul 20251810 PMAQI
23rd Jul 20251811 PMAQI
24th Jul 20251712 AMAQI
24th Jul 2025161 AMAQI
24th Jul 2025162 AMAQI
24th Jul 2025163 AMAQI
24th Jul 2025164 AMAQI

24°C16/32°C

24th Jul 2025165 AMAQI
24th Jul 2025176 AMAQI
24th Jul 2025177 AMAQI
24th Jul 2025178 AMAQI
24th Jul 2025169 AMAQI
24th Jul 20251610 AMAQI
24th Jul 20251711 AMAQI
24th Jul 20251712 PMAQI
24th Jul 2025171 PMAQI
24th Jul 2025172 PMAQI
24th Jul 2025183 PMAQI
24th Jul 2025174 PMAQI
24th Jul 2025185 PMAQI
24th Jul 2025186 PMAQI
24th Jul 2025187 PMAQI
24th Jul 2025198 PMAQI
24th Jul 2025189 PMAQI
24th Jul 20251810 PMAQI
24th Jul 20251711 PMAQI
25th Jul 20251612 AMAQI
25th Jul 2025161 AMAQI
25th Jul 2025162 AMAQI
25th Jul 2025163 AMAQI
25th Jul 2025164 AMAQI

22°C17/30°C

25th Jul 2025165 AMAQI
25th Jul 2025166 AMAQI
25th Jul 2025167 AMAQI
25th Jul 2025168 AMAQI
25th Jul 2025159 AMAQI
25th Jul 20251410 AMAQI
25th Jul 20251611 AMAQI
25th Jul 20251512 PMAQI
25th Jul 2025151 PMAQI
25th Jul 2025162 PMAQI
25th Jul 2025163 PMAQI
25th Jul 2025174 PMAQI
25th Jul 2025175 PMAQI
25th Jul 2025186 PMAQI
25th Jul 2025177 PMAQI
25th Jul 2025168 PMAQI
25th Jul 2025179 PMAQI
25th Jul 20251610 PMAQI
25th Jul 20251611 PMAQI
26th Jul 20251712 AMAQI
26th Jul 2025161 AMAQI
26th Jul 2025162 AMAQI
26th Jul 2025163 AMAQI
26th Jul 2025154 AMAQI

18°C14/26°C

26th Jul 2025165 AMAQI
26th Jul 2025146 AMAQI
26th Jul 2025147 AMAQI
26th Jul 2025158 AMAQI
26th Jul 2025149 AMAQI
26th Jul 20251510 AMAQI
26th Jul 20251411 AMAQI
26th Jul 20251512 PMAQI
26th Jul 2025151 PMAQI
26th Jul 2025162 PMAQI
26th Jul 2025163 PMAQI
26th Jul 2025164 PMAQI
26th Jul 2025165 PMAQI
26th Jul 2025166 PMAQI
26th Jul 2025167 PMAQI
26th Jul 2025168 PMAQI
26th Jul 2025179 PMAQI
26th Jul 20251710 PMAQI
26th Jul 20251811 PMAQI
27th Jul 20251812 AMAQI
27th Jul 2025181 AMAQI
27th Jul 2025182 AMAQI
27th Jul 2025183 AMAQI
27th Jul 2025194 AMAQI

16°C13/20°C

27th Jul 2025195 AMAQI
27th Jul 2025206 AMAQI
27th Jul 2025207 AMAQI
27th Jul 2025238 AMAQI
27th Jul 2025229 AMAQI
27th Jul 20252110 AMAQI
27th Jul 20252011 AMAQI
27th Jul 20252012 PMAQI
27th Jul 2025191 PMAQI
27th Jul 2025202 PMAQI
27th Jul 2025203 PMAQI
27th Jul 2025204 PMAQI
27th Jul 2025195 PMAQI
27th Jul 2025206 PMAQI
27th Jul 2025207 PMAQI
27th Jul 2025198 PMAQI
27th Jul 2025209 PMAQI
27th Jul 20251810 PMAQI
27th Jul 20251911 PMAQI
28th Jul 20251912 AMAQI
28th Jul 2025191 AMAQI
28th Jul 2025202 AMAQI
28th Jul 2025203 AMAQI
28th Jul 2025194 AMAQI

19°C14/27°C

28th Jul 2025205 AMAQI
28th Jul 2025186 AMAQI
28th Jul 2025187 AMAQI
28th Jul 2025198 AMAQI
28th Jul 2025199 AMAQI
28th Jul 20251810 AMAQI
28th Jul 20252011 AMAQI
28th Jul 20252012 PMAQI
28th Jul 2025201 PMAQI
28th Jul 2025202 PMAQI
28th Jul 2025203 PMAQI
28th Jul 2025204 PMAQI
28th Jul 2025245 PMAQI
28th Jul 2025206 PMAQI
28th Jul 2025207 PMAQI
28th Jul 2025208 PMAQI
28th Jul 2025199 PMAQI
28th Jul 20252010 PMAQI
28th Jul 20251811 PMAQI
29th Jul 20251812 AMAQI
29th Jul 2025181 AMAQI
29th Jul 2025182 AMAQI
29th Jul 2025173 AMAQI
29th Jul 2025174 AMAQI

22°C14/30°C

29th Jul 2025175 AMAQI
29th Jul 2025186 AMAQI
29th Jul 2025187 AMAQI
29th Jul 2025178 AMAQI
29th Jul 2025179 AMAQI
29th Jul 20251710 AMAQI
29th Jul 20251811 AMAQI
29th Jul 20251812 PMAQI
29th Jul 2025171 PMAQI
29th Jul 2025182 PMAQI
29th Jul 2025183 PMAQI
29th Jul 2025194 PMAQI
29th Jul 2025195 PMAQI
29th Jul 2025186 PMAQI
29th Jul 2025187 PMAQI
29th Jul 2025188 PMAQI
29th Jul 2025189 PMAQI
29th Jul 20251910 PMAQI
29th Jul 20251811 PMAQI
30th Jul 20252012 AMAQI
30th Jul 2025211 AMAQI
30th Jul 2025222 AMAQI
30th Jul 2025233 AMAQI
30th Jul 2025224 AMAQI

24°C16/33°C

30th Jul 2025235 AMAQI
30th Jul 2025206 AMAQI
30th Jul 2025217 AMAQI
30th Jul 2025208 AMAQI
30th Jul 2025209 AMAQI
30th Jul 20251910 AMAQI
30th Jul 20251911 AMAQI
30th Jul 20252012 PMAQI
30th Jul 2025191 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 2025229 PMAQI
30th Jul 20252410 PMAQI
30th Jul 20252411 PMAQI
31st Jul 20252312 AMAQI
31st Jul 2025211 AMAQI
31st Jul 2025222 AMAQI
31st Jul 2025203 AMAQI
31st Jul 2025174 AMAQI

23°C16/31°C

31st Jul 2025155 AMAQI
31st Jul 2025186 AMAQI
31st Jul 2025227 AMAQI
31st Jul 2025208 AMAQI
31st Jul 2025209 AMAQI
31st Jul 20252310 AMAQI
31st Jul 20252811 AMAQI
31st Jul 20253012 PMAQI
31st Jul 2025301 PMAQI
31st Jul 2025262 PMAQI
31st Jul 2025223 PMAQI
31st Jul 2025224 PMAQI
31st Jul 2025205 PMAQI
31st Jul 2025216 PMAQI
31st Jul 2025257 PMAQI
31st Jul 2025248 PMAQI
31st Jul 2025209 PMAQI
31st Jul 20252010 PMAQI
31st Jul 20252011 PMAQI
1st Aug 20252212 AMAQI
1st Aug 2025221 AMAQI
1st Aug 2025222 AMAQI
1st Aug 2025213 AMAQI
1st Aug 2025214 AMAQI

21°C16/28°C

1st Aug 2025195 AMAQI
1st Aug 2025196 AMAQI
1st Aug 2025177 AMAQI
1st Aug 2025168 AMAQI
1st Aug 2025159 AMAQI
1st Aug 20251510 AMAQI
1st Aug 20251611 AMAQI
1st Aug 20251712 PMAQI
1st Aug 2025161 PMAQI
1st Aug 2025182 PMAQI
1st Aug 2025193 PMAQI
1st Aug 2025214 PMAQI
1st Aug 2025215 PMAQI
1st Aug 2025206 PMAQI
1st Aug 2025197 PMAQI
1st Aug 2025188 PMAQI
1st Aug 2025189 PMAQI
1st Aug 20251810 PMAQI
1st Aug 20251911 PMAQI
2nd Aug 20251912 AMAQI
2nd Aug 2025201 AMAQI
2nd Aug 2025182 AMAQI
2nd Aug 2025193 AMAQI
2nd Aug 2025184 AMAQI

21°C16/29°C

2nd Aug 2025165 AMAQI
5 AM
2nd Aug 2025166 AMAQI
2nd Aug 2025167 AMAQI
2nd Aug 2025158 AMAQI
2nd Aug 2025149 AMAQI
2nd Aug 20251510 AMAQI
2nd Aug 20251511 AMAQI
2nd Aug 20251412 PMAQI
12 PM
2nd Aug 2025141 PMAQI
8 PM
12 AM
4 AM

--°C/°C

Day time
Avg. Highest Time
11 AM - 12 PM

19AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
5 AM - 10 AM

18AQI

6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 12 PM (Avg. 19), while the lowest AQI was between 5 AM to 10 AM (Avg. 18).
Night time
Avg. Highest Time
12 AM - 11 PM

18AQI

8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM

18AQI

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. 18), while the lowest AQI was between 12 AM to 11 PM (Avg. 18).

2025 Days Vs Air Quality

Gresham, Oregon, United States

2025

100%

129

Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)

Good
129 Days
Moderate
0 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 100%

Health Risk Level:

Very Low

In 2025, 100% of 214 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

Gresham, 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
2nd March 2025
16AQI
3rd March 2025
16AQI
4th March 2025
20AQI
5th March 2025
22AQI
6th March 2025
17AQI
1st April 2025
30AQI
2nd April 2025
19AQI
3rd April 2025
24AQI
4th April 2025
31AQI
5th April 2025
19AQI
6th April 2025
33AQI
7th April 2025
16AQI
8th April 2025
16AQI
9th April 2025
17AQI
10th April 2025
23AQI
11th April 2025
17AQI
12th April 2025
18AQI
13th April 2025
24AQI
14th April 2025
20AQI
15th April 2025
27AQI
16th April 2025
24AQI
17th April 2025
25AQI
18th April 2025
27AQI
19th April 2025
22AQI
20th April 2025
21AQI
21st April 2025
16AQI
22nd April 2025
19AQI
23rd April 2025
23AQI
24th April 2025
32AQI
25th April 2025
34AQI
26th April 2025
30AQI
27th April 2025
24AQI
28th April 2025
15AQI
29th April 2025
17AQI
30th April 2025
20AQI
1st May 2025
30AQI
2nd May 2025
21AQI
3rd May 2025
13AQI
4th May 2025
15AQI
5th May 2025
17AQI
6th May 2025
22AQI
7th May 2025
18AQI
8th May 2025
16AQI
9th May 2025
20AQI
10th May 2025
19AQI
11th May 2025
14AQI
12th May 2025
16AQI
13th May 2025
15AQI
14th May 2025
17AQI
15th May 2025
17AQI
16th May 2025
19AQI
17th May 2025
19AQI
18th May 2025
15AQI
19th May 2025
20AQI
20th May 2025
11AQI
21st May 2025
13AQI
22nd May 2025
16AQI
23rd May 2025
14AQI
24th May 2025
18AQI
25th May 2025
16AQI
26th May 2025
14AQI
27th May 2025
15AQI
28th May 2025
16AQI
29th May 2025
14AQI
30th May 2025
18AQI
31st May 2025
17AQI
1st June 2025
14AQI
2nd June 2025
17AQI
3rd June 2025
19AQI
4th June 2025
15AQI
5th June 2025
16AQI
6th June 2025
18AQI
7th June 2025
17AQI
8th June 2025
25AQI
9th June 2025
26AQI
10th June 2025
23AQI
11th June 2025
26AQI
12th June 2025
24AQI
13th June 2025
18AQI
14th June 2025
18AQI
15th June 2025
20AQI
16th June 2025
21AQI
17th June 2025
18AQI
18th June 2025
15AQI
19th June 2025
15AQI
20th June 2025
15AQI
21st June 2025
12AQI
22nd June 2025
11AQI
23rd June 2025
20AQI
24th June 2025
28AQI
25th June 2025
27AQI
26th June 2025
17AQI
27th June 2025
13AQI
28th June 2025
13AQI
29th June 2025
16AQI
30th June 2025
19AQI
1st July 2025
18AQI
2nd July 2025
14AQI
3rd July 2025
14AQI
4th July 2025
16AQI
5th July 2025
24AQI
6th July 2025
16AQI
7th July 2025
17AQI
8th July 2025
19AQI
9th July 2025
15AQI
10th July 2025
14AQI
11th July 2025
16AQI
12th July 2025
17AQI
13th July 2025
18AQI
14th July 2025
15AQI
15th July 2025
17AQI
16th July 2025
19AQI
17th July 2025
26AQI
18th July 2025
26AQI
19th July 2025
19AQI
20th July 2025
18AQI
21st July 2025
20AQI
22nd July 2025
21AQI
23rd July 2025
19AQI
24th July 2025
17AQI
25th July 2025
16AQI
26th July 2025
16AQI
27th July 2025
19AQI
28th July 2025
20AQI
29th July 2025
18AQI
30th July 2025
20AQI
31st July 2025
22AQI
1st August 2025
19AQI

18AQI

23AQI

17AQI

19AQI

18AQI

19AQI

No. of days

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

202519AQI

6
30
31
30
31
1
129

Highest AQI recorded in

April

23AQI

Lowest AQI recorded in

May

17AQI

Most & Least Polluted Years Over the Last 1 Years

Most Polluted Year Recorded
2025(Avg.)
19AQI
Least Polluted Year Recorded
2025(Avg.)
19AQI

Gresham's annual 2025 AQI (19) shows an average percentage change of NaN% (improved AQI) compared to previous years: .