Ridgefield, 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
Ridgefield, Washington, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
20th Aug 2023
110AQILowest AQI recorded on
5th Aug 2021
11AQISame Day Analysis (5th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 36 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 5th Aug - 6th Aug 2025
Ridgefield, Washington, United States
AQI
Day
Night
.
5 AM5th Aug 2025
8 PM
4 AM6th Aug 2025
Day time
Avg. Highest Time
4PM5th Aug
40AQI
Avg. Lowest Time
8AM5th Aug
31AQI
Night time
Avg. Highest Time
10PM5th Aug
33AQI
Avg. Lowest Time
4AM6th Aug
20AQI
In the last 24 hours,
Ridgefield's AQI reached its highest point of 40 at 4 PM during the Day, while the lowest point, 20, was recorded at 4 AM during the Night between 5th Aug and 6th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Ridgefield, Washington, United States
JulAug
07th - 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 - 03rd03rd - 04th04th - 05th05th - 06th06th
Day
Night
7th Jul 2025165 AMAQI
7th Jul 2025176 AMAQI
7th Jul 2025187 AMAQI
7th Jul 2025178 AMAQI
7th Jul 2025179 AMAQI
7th Jul 20251710 AMAQI
7th Jul 20251811 AMAQI
7th Jul 20252012 PMAQI
7th Jul 2025201 PMAQI
7th Jul 2025192 PMAQI
7th Jul 2025203 PMAQI
7th Jul 2025194 PMAQI
7th Jul 2025185 PMAQI
7th Jul 2025186 PMAQI
7th Jul 2025187 PMAQI
7th Jul 2025188 PMAQI
7th Jul 2025189 PMAQI
7th Jul 20251910 PMAQI
7th Jul 20252011 PMAQI
8th Jul 20252012 AMAQI
8th Jul 2025221 AMAQI
8th Jul 2025212 AMAQI
8th Jul 2025213 AMAQI
8th Jul 2025214 AMAQI
22°C13/31°C
8th Jul 2025205 AMAQI
8th Jul 2025206 AMAQI
8th Jul 2025217 AMAQI
8th Jul 2025218 AMAQI
8th Jul 2025209 AMAQI
8th Jul 20252110 AMAQI
8th Jul 20252011 AMAQI
8th Jul 20252212 PMAQI
8th Jul 2025201 PMAQI
8th Jul 2025212 PMAQI
8th Jul 2025213 PMAQI
8th Jul 2025214 PMAQI
8th Jul 2025205 PMAQI
8th Jul 2025186 PMAQI
8th Jul 2025217 PMAQI
8th Jul 2025218 PMAQI
8th Jul 2025189 PMAQI
8th Jul 20251810 PMAQI
8th Jul 20251711 PMAQI
9th Jul 20251712 AMAQI
9th Jul 2025161 AMAQI
9th Jul 2025152 AMAQI
9th Jul 2025163 AMAQI
9th Jul 2025144 AMAQI
20°C12/30°C
9th Jul 2025145 AMAQI
9th Jul 2025206 AMAQI
9th Jul 2025157 AMAQI
9th Jul 2025148 AMAQI
9th Jul 2025149 AMAQI
9th Jul 20251410 AMAQI
9th Jul 20251511 AMAQI
9th Jul 20251412 PMAQI
9th Jul 2025141 PMAQI
9th Jul 2025142 PMAQI
9th Jul 2025143 PMAQI
9th Jul 2025144 PMAQI
9th Jul 2025155 PMAQI
9th Jul 2025166 PMAQI
9th Jul 2025147 PMAQI
9th Jul 2025158 PMAQI
9th Jul 2025169 PMAQI
9th Jul 20251710 PMAQI
9th Jul 20251611 PMAQI
10th Jul 20251612 AMAQI
10th Jul 2025151 AMAQI
10th Jul 2025152 AMAQI
10th Jul 2025143 AMAQI
10th Jul 2025144 AMAQI
18°C15/23°C
10th Jul 2025135 AMAQI
10th Jul 2025146 AMAQI
10th Jul 2025147 AMAQI
10th Jul 2025158 AMAQI
10th Jul 2025159 AMAQI
10th Jul 20251510 AMAQI
10th Jul 20251511 AMAQI
10th Jul 20251512 PMAQI
10th Jul 2025141 PMAQI
10th Jul 2025152 PMAQI
10th Jul 2025163 PMAQI
10th Jul 2025164 PMAQI
10th Jul 2025155 PMAQI
10th Jul 2025146 PMAQI
10th Jul 2025157 PMAQI
10th Jul 2025148 PMAQI
10th Jul 2025159 PMAQI
10th Jul 20251410 PMAQI
10th Jul 20251711 PMAQI
11th Jul 20251712 AMAQI
11th Jul 2025151 AMAQI
11th Jul 2025162 AMAQI
11th Jul 2025163 AMAQI
11th Jul 2025164 AMAQI
18°C15/24°C
11th Jul 2025165 AMAQI
11th Jul 2025186 AMAQI
11th Jul 2025177 AMAQI
11th Jul 2025178 AMAQI
11th Jul 2025289 AMAQI
11th Jul 20251910 AMAQI
11th Jul 20251911 AMAQI
11th Jul 20251812 PMAQI
11th Jul 2025191 PMAQI
11th Jul 2025192 PMAQI
11th Jul 2025193 PMAQI
11th Jul 2025184 PMAQI
11th Jul 2025185 PMAQI
11th Jul 2025196 PMAQI
11th Jul 2025187 PMAQI
11th Jul 2025188 PMAQI
11th Jul 2025199 PMAQI
11th Jul 20252010 PMAQI
11th Jul 20252011 PMAQI
12th Jul 20251912 AMAQI
12th Jul 2025211 AMAQI
12th Jul 2025182 AMAQI
12th Jul 2025183 AMAQI
12th Jul 2025184 AMAQI
22°C14/30°C
12th Jul 2025175 AMAQI
12th Jul 2025166 AMAQI
12th Jul 2025187 AMAQI
12th Jul 2025198 AMAQI
12th Jul 2025179 AMAQI
12th Jul 20251710 AMAQI
12th Jul 20251711 AMAQI
12th Jul 20251712 PMAQI
12th Jul 2025161 PMAQI
12th Jul 2025182 PMAQI
12th Jul 2025183 PMAQI
12th Jul 2025184 PMAQI
12th Jul 2025185 PMAQI
12th Jul 2025186 PMAQI
12th Jul 2025187 PMAQI
12th Jul 2025188 PMAQI
12th Jul 2025179 PMAQI
12th Jul 20251810 PMAQI
12th Jul 20251911 PMAQI
13th Jul 20252012 AMAQI
13th Jul 2025201 AMAQI
13th Jul 2025202 AMAQI
13th Jul 2025213 AMAQI
13th Jul 2025224 AMAQI
21°C14/30°C
13th Jul 2025185 AMAQI
13th Jul 2025226 AMAQI
13th Jul 2025217 AMAQI
13th Jul 2025218 AMAQI
13th Jul 2025229 AMAQI
13th Jul 20252310 AMAQI
13th Jul 20252211 AMAQI
13th Jul 20252312 PMAQI
13th Jul 2025221 PMAQI
13th Jul 2025212 PMAQI
13th Jul 2025223 PMAQI
13th Jul 2025224 PMAQI
13th Jul 2025215 PMAQI
13th Jul 2025196 PMAQI
13th Jul 2025207 PMAQI
13th Jul 2025228 PMAQI
13th Jul 2025199 PMAQI
13th Jul 20251910 PMAQI
13th Jul 20251911 PMAQI
14th Jul 20252012 AMAQI
14th Jul 2025181 AMAQI
14th Jul 2025182 AMAQI
14th Jul 2025173 AMAQI
14th Jul 2025164 AMAQI
24°C16/34°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 20251511 AMAQI
14th Jul 20251512 PMAQI
14th Jul 2025151 PMAQI
14th Jul 2025162 PMAQI
14th Jul 2025153 PMAQI
14th Jul 2025164 PMAQI
14th Jul 2025175 PMAQI
14th Jul 2025176 PMAQI
14th Jul 2025167 PMAQI
14th Jul 2025178 PMAQI
14th Jul 2025179 PMAQI
14th Jul 20251810 PMAQI
14th Jul 20251711 PMAQI
15th Jul 20251812 AMAQI
15th Jul 2025181 AMAQI
15th Jul 2025182 AMAQI
15th Jul 2025183 AMAQI
15th Jul 2025174 AMAQI
16°C14/21°C
15th Jul 2025165 AMAQI
15th Jul 2025186 AMAQI
15th Jul 2025187 AMAQI
15th Jul 2025188 AMAQI
15th Jul 2025189 AMAQI
15th Jul 20252010 AMAQI
15th Jul 20252011 AMAQI
15th Jul 20252212 PMAQI
15th Jul 2025221 PMAQI
15th Jul 2025222 PMAQI
15th Jul 2025223 PMAQI
15th Jul 2025214 PMAQI
15th Jul 2025225 PMAQI
15th Jul 2025226 PMAQI
15th Jul 2025217 PMAQI
15th Jul 2025218 PMAQI
15th Jul 2025249 PMAQI
15th Jul 20252410 PMAQI
15th Jul 20252211 PMAQI
16th Jul 20252212 AMAQI
16th Jul 2025201 AMAQI
16th Jul 2025212 AMAQI
16th Jul 2025223 AMAQI
16th Jul 2025224 AMAQI
22°C12/32°C
16th Jul 2025245 AMAQI
16th Jul 2025246 AMAQI
16th Jul 2025237 AMAQI
16th Jul 2025248 AMAQI
16th Jul 2025249 AMAQI
16th Jul 20252510 AMAQI
16th Jul 20252811 AMAQI
16th Jul 20253112 PMAQI
16th Jul 2025281 PMAQI
16th Jul 2025262 PMAQI
16th Jul 2025253 PMAQI
16th Jul 2025264 PMAQI
16th Jul 2025255 PMAQI
16th Jul 2025236 PMAQI
16th Jul 2025237 PMAQI
16th Jul 2025248 PMAQI
16th Jul 2025229 PMAQI
16th Jul 20252310 PMAQI
16th Jul 20252311 PMAQI
17th Jul 20252412 AMAQI
17th Jul 2025251 AMAQI
17th Jul 2025282 AMAQI
17th Jul 2025293 AMAQI
17th Jul 2025324 AMAQI
26°C18/35°C
17th Jul 2025325 AMAQI
17th Jul 2025326 AMAQI
17th Jul 2025327 AMAQI
17th Jul 2025308 AMAQI
17th Jul 2025319 AMAQI
17th Jul 20252910 AMAQI
17th Jul 20252811 AMAQI
17th Jul 20252812 PMAQI
17th Jul 2025281 PMAQI
17th Jul 2025292 PMAQI
17th Jul 2025303 PMAQI
17th Jul 2025294 PMAQI
17th Jul 2025305 PMAQI
17th Jul 2025306 PMAQI
17th Jul 2025307 PMAQI
17th Jul 2025308 PMAQI
17th Jul 2025279 PMAQI
17th Jul 20252610 PMAQI
17th Jul 20252711 PMAQI
18th Jul 20252812 AMAQI
18th Jul 2025301 AMAQI
18th Jul 2025302 AMAQI
18th Jul 2025293 AMAQI
18th Jul 2025284 AMAQI
20°C13/29°C
18th Jul 2025265 AMAQI
18th Jul 2025286 AMAQI
18th Jul 2025287 AMAQI
18th Jul 2025288 AMAQI
18th Jul 2025289 AMAQI
18th Jul 20252810 AMAQI
18th Jul 20252711 AMAQI
18th Jul 20252612 PMAQI
18th Jul 2025261 PMAQI
18th Jul 2025282 PMAQI
18th Jul 2025293 PMAQI
18th Jul 2025304 PMAQI
18th Jul 2025295 PMAQI
18th Jul 2025256 PMAQI
18th Jul 2025267 PMAQI
18th Jul 2025328 PMAQI
18th Jul 2025229 PMAQI
18th Jul 20252010 PMAQI
18th Jul 20252311 PMAQI
19th Jul 20252212 AMAQI
19th Jul 2025221 AMAQI
19th Jul 2025232 AMAQI
19th Jul 2025223 AMAQI
19th Jul 2025174 AMAQI
18°C14/23°C
19th Jul 2025185 AMAQI
19th Jul 2025186 AMAQI
19th Jul 2025187 AMAQI
19th Jul 2025188 AMAQI
19th Jul 2025189 AMAQI
19th Jul 20251910 AMAQI
19th Jul 20251911 AMAQI
19th Jul 20252012 PMAQI
19th Jul 2025211 PMAQI
19th Jul 2025212 PMAQI
19th Jul 2025223 PMAQI
19th Jul 2025224 PMAQI
19th Jul 2025215 PMAQI
19th Jul 2025216 PMAQI
19th Jul 2025217 PMAQI
19th Jul 2025208 PMAQI
19th Jul 2025229 PMAQI
19th Jul 20252210 PMAQI
19th Jul 20252311 PMAQI
20th Jul 20252312 AMAQI
20th Jul 2025221 AMAQI
20th Jul 2025212 AMAQI
20th Jul 2025203 AMAQI
20th Jul 2025164 AMAQI
16°C12/23°C
20th Jul 2025165 AMAQI
20th Jul 2025166 AMAQI
20th Jul 2025187 AMAQI
20th Jul 2025168 AMAQI
20th Jul 2025179 AMAQI
20th Jul 20251710 AMAQI
20th Jul 20251811 AMAQI
20th Jul 20251712 PMAQI
20th Jul 2025181 PMAQI
20th Jul 2025202 PMAQI
20th Jul 2025203 PMAQI
20th Jul 2025194 PMAQI
20th Jul 2025205 PMAQI
20th Jul 2025196 PMAQI
20th Jul 2025207 PMAQI
20th Jul 2025188 PMAQI
20th Jul 2025209 PMAQI
20th Jul 20252010 PMAQI
20th Jul 20251911 PMAQI
21st Jul 20252012 AMAQI
21st Jul 2025201 AMAQI
21st Jul 2025192 AMAQI
21st Jul 2025193 AMAQI
21st Jul 2025204 AMAQI
15°C12/20°C
21st Jul 2025205 AMAQI
21st Jul 2025206 AMAQI
21st Jul 2025207 AMAQI
21st Jul 2025208 AMAQI
21st Jul 2025219 AMAQI
21st Jul 20252010 AMAQI
21st Jul 20252011 AMAQI
21st Jul 20252012 PMAQI
21st Jul 2025221 PMAQI
21st Jul 2025212 PMAQI
21st Jul 2025213 PMAQI
21st Jul 2025224 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 20252111 PMAQI
22nd Jul 20252212 AMAQI
22nd Jul 2025221 AMAQI
22nd Jul 2025202 AMAQI
22nd Jul 2025203 AMAQI
22nd Jul 2025204 AMAQI
18°C14/24°C
22nd Jul 2025205 AMAQI
22nd Jul 2025206 AMAQI
22nd Jul 2025217 AMAQI
22nd Jul 2025208 AMAQI
22nd Jul 2025209 AMAQI
22nd Jul 20252010 AMAQI
22nd Jul 20251911 AMAQI
22nd Jul 20251912 PMAQI
22nd Jul 2025201 PMAQI
22nd Jul 2025202 PMAQI
22nd Jul 2025213 PMAQI
22nd Jul 2025204 PMAQI
22nd Jul 2025215 PMAQI
22nd Jul 2025216 PMAQI
22nd Jul 2025217 PMAQI
22nd Jul 2025218 PMAQI
22nd Jul 2025219 PMAQI
22nd Jul 20252110 PMAQI
22nd Jul 20252211 PMAQI
23rd Jul 20252212 AMAQI
23rd Jul 2025211 AMAQI
23rd Jul 2025202 AMAQI
23rd Jul 2025203 AMAQI
23rd Jul 2025174 AMAQI
18°C12/25°C
23rd Jul 2025175 AMAQI
23rd Jul 2025186 AMAQI
23rd Jul 2025177 AMAQI
23rd Jul 2025188 AMAQI
23rd Jul 2025219 AMAQI
23rd Jul 20252010 AMAQI
23rd Jul 20252011 AMAQI
23rd Jul 20252212 PMAQI
23rd Jul 2025241 PMAQI
23rd Jul 2025242 PMAQI
23rd Jul 2025233 PMAQI
23rd Jul 2025234 PMAQI
23rd Jul 2025235 PMAQI
23rd Jul 2025226 PMAQI
23rd Jul 2025217 PMAQI
23rd Jul 2025228 PMAQI
23rd Jul 2025219 PMAQI
23rd Jul 20252010 PMAQI
23rd Jul 20252011 PMAQI
24th Jul 20252012 AMAQI
24th Jul 2025191 AMAQI
24th Jul 2025172 AMAQI
24th Jul 2025173 AMAQI
24th Jul 2025184 AMAQI
20°C13/31°C
24th Jul 2025165 AMAQI
24th Jul 2025186 AMAQI
24th Jul 2025177 AMAQI
24th Jul 2025188 AMAQI
24th Jul 2025179 AMAQI
24th Jul 20251710 AMAQI
24th Jul 20251711 AMAQI
24th Jul 20251712 PMAQI
24th Jul 2025171 PMAQI
24th Jul 2025182 PMAQI
24th Jul 2025183 PMAQI
24th Jul 2025174 PMAQI
24th Jul 2025175 PMAQI
24th Jul 2025186 PMAQI
24th Jul 2025187 PMAQI
24th Jul 2025188 PMAQI
24th Jul 2025169 PMAQI
24th Jul 20251610 PMAQI
24th Jul 20251711 PMAQI
25th Jul 20251612 AMAQI
25th Jul 2025171 AMAQI
25th Jul 2025172 AMAQI
25th Jul 2025193 AMAQI
25th Jul 2025184 AMAQI
18°C14/26°C
25th Jul 2025165 AMAQI
25th Jul 2025196 AMAQI
25th Jul 2025167 AMAQI
25th Jul 2025158 AMAQI
25th Jul 2025159 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 2025164 PMAQI
25th Jul 2025165 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 20251612 AMAQI
26th Jul 2025161 AMAQI
26th Jul 2025162 AMAQI
26th Jul 2025163 AMAQI
26th Jul 2025144 AMAQI
16°C14/21°C
26th Jul 2025165 AMAQI
26th Jul 2025156 AMAQI
26th Jul 2025157 AMAQI
26th Jul 2025168 AMAQI
26th Jul 2025169 AMAQI
26th Jul 20251610 AMAQI
26th Jul 20251711 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 2025187 PMAQI
26th Jul 2025178 PMAQI
26th Jul 2025179 PMAQI
26th Jul 20251810 PMAQI
26th Jul 20251911 PMAQI
27th Jul 20251912 AMAQI
27th Jul 2025191 AMAQI
27th Jul 2025202 AMAQI
27th Jul 2025203 AMAQI
27th Jul 2025204 AMAQI
15°C11/20°C
27th Jul 2025205 AMAQI
27th Jul 2025216 AMAQI
27th Jul 2025217 AMAQI
27th Jul 2025228 AMAQI
27th Jul 2025239 AMAQI
27th Jul 20252310 AMAQI
27th Jul 20252111 AMAQI
27th Jul 20252212 PMAQI
27th Jul 2025211 PMAQI
27th Jul 2025212 PMAQI
27th Jul 2025213 PMAQI
27th Jul 2025214 PMAQI
27th Jul 2025205 PMAQI
27th Jul 2025216 PMAQI
27th Jul 2025227 PMAQI
27th Jul 2025228 PMAQI
27th Jul 2025219 PMAQI
27th Jul 20252010 PMAQI
27th Jul 20252111 PMAQI
28th Jul 20252212 AMAQI
28th Jul 2025221 AMAQI
28th Jul 2025212 AMAQI
28th Jul 2025223 AMAQI
28th Jul 2025214 AMAQI
17°C12/23°C
28th Jul 2025215 AMAQI
28th Jul 2025196 AMAQI
28th Jul 2025187 AMAQI
28th Jul 2025208 AMAQI
28th Jul 2025199 AMAQI
28th Jul 20251910 AMAQI
28th Jul 20252111 AMAQI
28th Jul 20252012 PMAQI
28th Jul 2025201 PMAQI
28th Jul 2025212 PMAQI
28th Jul 2025213 PMAQI
28th Jul 2025224 PMAQI
28th Jul 2025225 PMAQI
28th Jul 2025216 PMAQI
28th Jul 2025217 PMAQI
28th Jul 2025218 PMAQI
28th Jul 2025209 PMAQI
28th Jul 20252010 PMAQI
28th Jul 20252111 PMAQI
29th Jul 20252012 AMAQI
29th Jul 2025201 AMAQI
29th Jul 2025202 AMAQI
29th Jul 2025163 AMAQI
29th Jul 2025154 AMAQI
19°C11/29°C
29th Jul 2025165 AMAQI
29th Jul 2025166 AMAQI
29th Jul 2025167 AMAQI
29th Jul 2025178 AMAQI
29th Jul 2025179 AMAQI
29th Jul 20251710 AMAQI
29th Jul 20251711 AMAQI
29th Jul 20251812 PMAQI
29th Jul 2025181 PMAQI
29th Jul 2025182 PMAQI
29th Jul 2025193 PMAQI
29th Jul 2025194 PMAQI
29th Jul 2025205 PMAQI
29th Jul 2025206 PMAQI
29th Jul 2025187 PMAQI
29th Jul 2025198 PMAQI
29th Jul 2025209 PMAQI
29th Jul 20252110 PMAQI
29th Jul 20252111 PMAQI
30th Jul 20252212 AMAQI
30th Jul 2025221 AMAQI
30th Jul 2025222 AMAQI
30th Jul 2025213 AMAQI
30th Jul 2025204 AMAQI
22°C13/32°C
30th Jul 2025185 AMAQI
30th Jul 2025186 AMAQI
30th Jul 2025177 AMAQI
30th Jul 2025168 AMAQI
30th Jul 2025169 AMAQI
30th Jul 20251610 AMAQI
30th Jul 20251611 AMAQI
30th Jul 20251712 PMAQI
30th Jul 2025171 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 2025219 PMAQI
30th Jul 20252110 PMAQI
30th Jul 20252111 PMAQI
31st Jul 20252112 AMAQI
31st Jul 2025211 AMAQI
31st Jul 2025192 AMAQI
31st Jul 2025163 AMAQI
31st Jul 2025144 AMAQI
20°C13/30°C
31st Jul 2025145 AMAQI
31st Jul 2025166 AMAQI
31st Jul 2025187 AMAQI
31st Jul 2025178 AMAQI
31st Jul 2025169 AMAQI
31st Jul 20251810 AMAQI
31st Jul 20251811 AMAQI
31st Jul 20252712 PMAQI
31st Jul 2025261 PMAQI
31st Jul 2025222 PMAQI
31st Jul 2025193 PMAQI
31st Jul 2025194 PMAQI
31st Jul 2025205 PMAQI
31st Jul 2025196 PMAQI
31st Jul 2025237 PMAQI
31st Jul 2025228 PMAQI
31st Jul 2025199 PMAQI
31st Jul 20251810 PMAQI
31st Jul 20252011 PMAQI
1st Aug 20251912 AMAQI
1st Aug 2025181 AMAQI
1st Aug 2025172 AMAQI
1st Aug 2025173 AMAQI
1st Aug 2025174 AMAQI
18°C15/24°C
1st Aug 2025165 AMAQI
1st Aug 2025166 AMAQI
1st Aug 2025147 AMAQI
1st Aug 2025148 AMAQI
1st Aug 2025179 AMAQI
1st Aug 20251610 AMAQI
1st Aug 20251611 AMAQI
1st Aug 20251612 PMAQI
1st Aug 2025171 PMAQI
1st Aug 2025162 PMAQI
1st Aug 2025183 PMAQI
1st Aug 2025174 PMAQI
1st Aug 2025165 PMAQI
1st Aug 2025166 PMAQI
1st Aug 2025187 PMAQI
1st Aug 2025188 PMAQI
1st Aug 2025189 PMAQI
1st Aug 20251910 PMAQI
1st Aug 20251911 PMAQI
2nd Aug 20252012 AMAQI
2nd Aug 2025181 AMAQI
2nd Aug 2025162 AMAQI
2nd Aug 2025173 AMAQI
2nd Aug 2025184 AMAQI
18°C14/23°C
2nd Aug 2025175 AMAQI
2nd Aug 2025166 AMAQI
2nd Aug 2025147 AMAQI
2nd Aug 2025158 AMAQI
2nd Aug 2025139 AMAQI
2nd Aug 20251410 AMAQI
2nd Aug 20251411 AMAQI
2nd Aug 20251412 PMAQI
2nd Aug 2025131 PMAQI
2nd Aug 2025132 PMAQI
2nd Aug 2025143 PMAQI
2nd Aug 2025154 PMAQI
2nd Aug 2025145 PMAQI
2nd Aug 2025156 PMAQI
2nd Aug 2025167 PMAQI
2nd Aug 2025168 PMAQI
2nd Aug 2025179 PMAQI
2nd Aug 20252110 PMAQI
2nd Aug 20252011 PMAQI
3rd Aug 20252012 AMAQI
3rd Aug 2025201 AMAQI
3rd Aug 2025222 AMAQI
3rd Aug 2025213 AMAQI
3rd Aug 2025204 AMAQI
18°C15/21°C
3rd Aug 2025205 AMAQI
3rd Aug 2025196 AMAQI
3rd Aug 2025187 AMAQI
3rd Aug 2025188 AMAQI
3rd Aug 2025199 AMAQI
3rd Aug 20251810 AMAQI
3rd Aug 20251911 AMAQI
3rd Aug 20251812 PMAQI
3rd Aug 2025171 PMAQI
3rd Aug 2025182 PMAQI
3rd Aug 2025183 PMAQI
3rd Aug 2025194 PMAQI
3rd Aug 2025205 PMAQI
3rd Aug 2025216 PMAQI
3rd Aug 2025217 PMAQI
3rd Aug 2025218 PMAQI
3rd Aug 2025229 PMAQI
3rd Aug 20252210 PMAQI
3rd Aug 20252211 PMAQI
4th Aug 20252312 AMAQI
4th Aug 2025221 AMAQI
4th Aug 2025222 AMAQI
4th Aug 2025213 AMAQI
4th Aug 2025224 AMAQI
17°C13/22°C
4th Aug 2025225 AMAQI
4th Aug 2025206 AMAQI
4th Aug 2025217 AMAQI
4th Aug 2025218 AMAQI
4th Aug 2025209 AMAQI
4th Aug 20252010 AMAQI
4th Aug 20252111 AMAQI
4th Aug 20252212 PMAQI
4th Aug 2025211 PMAQI
4th Aug 2025212 PMAQI
4th Aug 2025213 PMAQI
4th Aug 2025274 PMAQI
4th Aug 2025365 PMAQI
4th Aug 2025386 PMAQI
4th Aug 2025217 PMAQI
4th Aug 2025368 PMAQI
4th Aug 2025519 PMAQI
4th Aug 20254810 PMAQI
4th Aug 20254911 PMAQI
5th Aug 20254612 AMAQI
5th Aug 2025411 AMAQI
5th Aug 2025372 AMAQI
5th Aug 2025343 AMAQI
5th Aug 2025334 AMAQI
17°C11/22°C
5th Aug 2025335 AMAQI
5th Aug 2025326 AMAQI
5th Aug 2025337 AMAQI
5th Aug 2025318 AMAQI
5th Aug 2025339 AMAQI
5th Aug 20253410 AMAQI
5th Aug 20253311 AMAQI
5th Aug 20253412 PMAQI
5th Aug 2025361 PMAQI
5th Aug 2025372 PMAQI
5th Aug 2025383 PMAQI
5th Aug 2025404 PMAQI
5th Aug 2025405 PMAQI
5th Aug 2025406 PMAQI
5th Aug 2025367 PMAQI
5th Aug 2025368 PMAQI
5th Aug 2025329 PMAQI
5th Aug 20253310 PMAQI
5th Aug 20252911 PMAQI
6th Aug 20252612 AMAQI
6th Aug 2025241 AMAQI
6th Aug 2025222 AMAQI
6th Aug 2025203 AMAQI
6th Aug 2025204 AMAQI
19°C13/25°C
6th Aug 2025205 AMAQI
5 AM6th Aug 2025206 AMAQI
6th Aug 2025197 AMAQI
6th Aug 2025208 AMAQI
6th Aug 2025209 AMAQI
6th Aug 20252010 AMAQI
6th Aug 20252011 AMAQI
6th Aug 20252012 PMAQI
12 PM6th Aug 2025201 PMAQI
6th Aug 2025192 PMAQI
6th Aug 2025203 PMAQI
6th Aug 2025204 PMAQI
6th Aug 2025215 PMAQI
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 - 8 AM
19AQI
4 hours / Day
120 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 8 AM (Avg. 19).
Night time
Avg. Highest Time
12 AM - 11 PM
21AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
4 AM
19AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 21), while the lowest AQI was between 4 AM to 4 AM (Avg. 19).
2025 Days Vs Air Quality
Ridgefield, Washington, United States
2025
99%
215
0.9%
2
Total number of days with different AQI categories in last 218 days in 2025 (147 days remaining)
Good
215 DaysModerate
2 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 99%
Health Risk Level:
Very Low
In 2025, 99% of 218 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
Ridgefield, 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
26AQI
26AQI
2nd January 2025
23AQI
23AQI
3rd January 2025
20AQI
20AQI
4th January 2025
18AQI
18AQI
5th January 2025
19AQI
19AQI
6th January 2025
22AQI
22AQI
7th January 2025
21AQI
21AQI
8th January 2025
23AQI
23AQI
9th January 2025
26AQI
26AQI
10th January 2025
23AQI
23AQI
11th January 2025
19AQI
19AQI
12th January 2025
22AQI
22AQI
13th January 2025
28AQI
28AQI
14th January 2025
31AQI
31AQI
15th January 2025
33AQI
33AQI
16th January 2025
44AQI
44AQI
17th January 2025
40AQI
40AQI
18th January 2025
31AQI
31AQI
19th January 2025
41AQI
41AQI
20th January 2025
30AQI
30AQI
21st January 2025
42AQI
42AQI
22nd January 2025
42AQI
42AQI
23rd January 2025
40AQI
40AQI
24th January 2025
37AQI
37AQI
25th January 2025
32AQI
32AQI
26th January 2025
32AQI
32AQI
27th January 2025
37AQI
37AQI
28th January 2025
48AQI
48AQI
29th January 2025
55AQI
55AQI
30th January 2025
59AQI
59AQI
31st January 2025
35AQI
35AQI
1st February 2025
17AQI
17AQI
2nd February 2025
24AQI
24AQI
3rd February 2025
20AQI
20AQI
4th February 2025
27AQI
27AQI
5th February 2025
23AQI
23AQI
6th February 2025
21AQI
21AQI
7th February 2025
24AQI
24AQI
8th February 2025
23AQI
23AQI
9th February 2025
31AQI
31AQI
10th February 2025
25AQI
25AQI
11th February 2025
22AQI
22AQI
12th February 2025
24AQI
24AQI
13th February 2025
22AQI
22AQI
14th February 2025
25AQI
25AQI
15th February 2025
32AQI
32AQI
16th February 2025
21AQI
21AQI
17th February 2025
19AQI
19AQI
18th February 2025
20AQI
20AQI
19th February 2025
19AQI
19AQI
20th February 2025
19AQI
19AQI
21st February 2025
20AQI
20AQI
22nd February 2025
21AQI
21AQI
23rd February 2025
15AQI
15AQI
24th February 2025
19AQI
19AQI
25th February 2025
17AQI
17AQI
26th February 2025
22AQI
22AQI
27th February 2025
24AQI
24AQI
28th February 2025
29AQI
29AQI
1st March 2025
35AQI
35AQI
2nd March 2025
25AQI
25AQI
3rd March 2025
21AQI
21AQI
4th March 2025
22AQI
22AQI
5th March 2025
19AQI
19AQI
6th March 2025
18AQI
18AQI
7th March 2025
21AQI
21AQI
8th March 2025
25AQI
25AQI
9th March 2025
29AQI
29AQI
10th March 2025
19AQI
19AQI
11th March 2025
28AQI
28AQI
12th March 2025
18AQI
18AQI
13th March 2025
16AQI
16AQI
14th March 2025
17AQI
17AQI
15th March 2025
17AQI
17AQI
16th March 2025
17AQI
17AQI
17th March 2025
20AQI
20AQI
18th March 2025
15AQI
15AQI
19th March 2025
17AQI
17AQI
20th March 2025
15AQI
15AQI
21st March 2025
14AQI
14AQI
22nd March 2025
16AQI
16AQI
23rd March 2025
16AQI
16AQI
24th March 2025
16AQI
16AQI
25th March 2025
20AQI
20AQI
26th March 2025
21AQI
21AQI
27th March 2025
16AQI
16AQI
28th March 2025
16AQI
16AQI
29th March 2025
15AQI
15AQI
30th March 2025
18AQI
18AQI
31st March 2025
16AQI
16AQI
1st April 2025
21AQI
21AQI
2nd April 2025
17AQI
17AQI
3rd April 2025
17AQI
17AQI
4th April 2025
19AQI
19AQI
5th April 2025
19AQI
19AQI
6th April 2025
28AQI
28AQI
7th April 2025
17AQI
17AQI
8th April 2025
14AQI
14AQI
9th April 2025
15AQI
15AQI
10th April 2025
18AQI
18AQI
11th April 2025
16AQI
16AQI
12th April 2025
17AQI
17AQI
13th April 2025
20AQI
20AQI
14th April 2025
21AQI
21AQI
15th April 2025
21AQI
21AQI
16th April 2025
22AQI
22AQI
17th April 2025
21AQI
21AQI
18th April 2025
21AQI
21AQI
19th April 2025
20AQI
20AQI
20th April 2025
16AQI
16AQI
21st April 2025
14AQI
14AQI
22nd April 2025
15AQI
15AQI
23rd April 2025
16AQI
16AQI
24th April 2025
23AQI
23AQI
25th April 2025
27AQI
27AQI
26th April 2025
24AQI
24AQI
27th April 2025
17AQI
17AQI
28th April 2025
13AQI
13AQI
29th April 2025
15AQI
15AQI
30th April 2025
14AQI
14AQI
1st May 2025
24AQI
24AQI
2nd May 2025
21AQI
21AQI
3rd May 2025
13AQI
13AQI
4th May 2025
13AQI
13AQI
5th May 2025
14AQI
14AQI
6th May 2025
19AQI
19AQI
7th May 2025
18AQI
18AQI
8th May 2025
16AQI
16AQI
9th May 2025
18AQI
18AQI
10th May 2025
17AQI
17AQI
11th May 2025
14AQI
14AQI
12th May 2025
15AQI
15AQI
13th May 2025
15AQI
15AQI
14th May 2025
18AQI
18AQI
15th May 2025
17AQI
17AQI
16th May 2025
19AQI
19AQI
17th May 2025
17AQI
17AQI
18th May 2025
13AQI
13AQI
19th May 2025
15AQI
15AQI
20th May 2025
11AQI
11AQI
21st May 2025
13AQI
13AQI
22nd May 2025
15AQI
15AQI
23rd May 2025
13AQI
13AQI
24th May 2025
15AQI
15AQI
25th May 2025
14AQI
14AQI
26th May 2025
14AQI
14AQI
27th May 2025
14AQI
14AQI
28th May 2025
19AQI
19AQI
29th May 2025
13AQI
13AQI
30th May 2025
17AQI
17AQI
31st May 2025
16AQI
16AQI
1st June 2025
16AQI
16AQI
2nd June 2025
18AQI
18AQI
3rd June 2025
20AQI
20AQI
4th June 2025
14AQI
14AQI
5th June 2025
15AQI
15AQI
6th June 2025
18AQI
18AQI
7th June 2025
18AQI
18AQI
8th June 2025
27AQI
27AQI
9th June 2025
29AQI
29AQI
10th June 2025
29AQI
29AQI
11th June 2025
29AQI
29AQI
12th June 2025
25AQI
25AQI
13th June 2025
18AQI
18AQI
14th June 2025
18AQI
18AQI
15th June 2025
19AQI
19AQI
16th June 2025
18AQI
18AQI
17th June 2025
18AQI
18AQI
18th June 2025
15AQI
15AQI
19th June 2025
16AQI
16AQI
20th June 2025
15AQI
15AQI
21st June 2025
14AQI
14AQI
22nd June 2025
15AQI
15AQI
23rd June 2025
19AQI
19AQI
24th June 2025
26AQI
26AQI
25th June 2025
27AQI
27AQI
26th June 2025
16AQI
16AQI
27th June 2025
13AQI
13AQI
28th June 2025
12AQI
12AQI
29th June 2025
17AQI
17AQI
30th June 2025
19AQI
19AQI
1st July 2025
18AQI
18AQI
2nd July 2025
15AQI
15AQI
3rd July 2025
15AQI
15AQI
4th July 2025
16AQI
16AQI
5th July 2025
18AQI
18AQI
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
21AQI
21AQI
14th July 2025
17AQI
17AQI
15th July 2025
20AQI
20AQI
16th July 2025
24AQI
24AQI
17th July 2025
29AQI
29AQI
18th July 2025
27AQI
27AQI
19th July 2025
21AQI
21AQI
20th July 2025
19AQI
19AQI
21st July 2025
21AQI
21AQI
22nd July 2025
21AQI
21AQI
23rd July 2025
21AQI
21AQI
24th July 2025
17AQI
17AQI
25th July 2025
16AQI
16AQI
26th July 2025
16AQI
16AQI
27th July 2025
21AQI
21AQI
28th July 2025
21AQI
21AQI
29th July 2025
18AQI
18AQI
30th July 2025
19AQI
19AQI
31st July 2025
19AQI
19AQI
1st August 2025
17AQI
17AQI
2nd August 2025
16AQI
16AQI
3rd August 2025
20AQI
20AQI
4th August 2025
28AQI
28AQI
5th August 2025
36AQI
36AQI
32AQI
22AQI
19AQI
19AQI
16AQI
19AQI
19AQI
23AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202521AQI
29
2
28
31
30
31
30
31
5
215
2
Highest AQI recorded in
January32AQI
Lowest AQI recorded in
May16AQI
202422AQI
31
29
31
30
31
30
31
31
28
2
31
27
3
31
361
5
Highest AQI recorded in
November28AQI
Lowest AQI recorded in
May16AQI
202324AQI
31
28
31
30
31
30
30
1
26
4
1
30
31
26
3
31
355
8
1
Highest AQI recorded in
August35AQI
Lowest AQI recorded in
April14AQI
202229AQI
29
1
21
1
31
17
31
30
21
2
26
4
16
11
3
1
23
7
28
3
275
27
3
1
Highest AQI recorded in
October56AQI
Lowest AQI recorded in
April18AQI
202123AQI
30
28
31
30
31
28
2
31
30
1
30
31
28
2
31
359
5
Highest AQI recorded in
August27AQI
Lowest AQI recorded in
February18AQI
202031AQI
4
19
1
18
30
31
31
19
3
2
6
27
3
28
2
30
1
237
10
2
6
Highest AQI recorded in
September85AQI
Lowest AQI recorded in
March12AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2020(Avg.)
31AQILeast Polluted Year Recorded
2025(Avg.)
21AQIRidgefield's annual 2025 AQI (21) shows an average percentage change of -16.4% (improved AQI) compared to previous years: 2020 (31), 2021 (23), 2022 (29), 2023 (24), 2024 (22).
