Keene, New Hampshire, 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
Keene, New Hampshire, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2025
81AQILowest AQI recorded on
20th Aug 2024
17AQISame Day Analysis (4th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 81 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 4th Aug - 5th Aug 2025
Keene, New Hampshire, United States
AQI
Day
Night
.
5 AM4th Aug 2025
8 PM
4 AM5th Aug 2025
Day time
Avg. Highest Time
2PM4th Aug
114AQI
Avg. Lowest Time
5AM4th Aug
70AQI
Night time
Avg. Highest Time
12AM5th Aug
108AQI
Avg. Lowest Time
9PM4th Aug
104AQI
In the last 24 hours,
Keene's AQI reached its highest point of 114 at 2 PM during the Day, while the lowest point, undefined, was recorded at 4 AM during the Night between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Keene, New Hampshire, United States
JulAug
06th - 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 - 03rd03rd - 04th04th - 05th05th
Day
Night
6th Jul 2025355 AMAQI
6th Jul 2025346 AMAQI
6th Jul 2025387 AMAQI
6th Jul 2025428 AMAQI
6th Jul 2025489 AMAQI
6th Jul 20255210 AMAQI
6th Jul 20255311 AMAQI
6th Jul 20255412 PMAQI
6th Jul 2025531 PMAQI
6th Jul 2025542 PMAQI
6th Jul 2025513 PMAQI
6th Jul 2025504 PMAQI
6th Jul 2025515 PMAQI
6th Jul 2025506 PMAQI
6th Jul 2025507 PMAQI
6th Jul 2025508 PMAQI
6th Jul 2025519 PMAQI
6th Jul 20255110 PMAQI
6th Jul 20255311 PMAQI
7th Jul 20255312 AMAQI
7th Jul 2025541 AMAQI
7th Jul 2025542 AMAQI
7th Jul 2025553 AMAQI
7th Jul 2025544 AMAQI
25°C15/34°C
7th Jul 2025555 AMAQI
7th Jul 2025546 AMAQI
7th Jul 2025547 AMAQI
7th Jul 2025548 AMAQI
7th Jul 2025549 AMAQI
7th Jul 20255310 AMAQI
7th Jul 20255111 AMAQI
7th Jul 20255012 PMAQI
7th Jul 2025461 PMAQI
7th Jul 2025462 PMAQI
7th Jul 2025503 PMAQI
7th Jul 2025474 PMAQI
7th Jul 2025485 PMAQI
7th Jul 2025476 PMAQI
7th Jul 2025527 PMAQI
7th Jul 2025518 PMAQI
7th Jul 2025459 PMAQI
7th Jul 20254210 PMAQI
7th Jul 20254611 PMAQI
8th Jul 20254212 AMAQI
8th Jul 2025271 AMAQI
8th Jul 2025262 AMAQI
8th Jul 2025263 AMAQI
8th Jul 2025264 AMAQI
25°C19/31°C
8th Jul 2025285 AMAQI
8th Jul 2025276 AMAQI
8th Jul 2025307 AMAQI
8th Jul 2025298 AMAQI
8th Jul 2025299 AMAQI
8th Jul 20252910 AMAQI
8th Jul 20253211 AMAQI
8th Jul 20253712 PMAQI
8th Jul 2025321 PMAQI
8th Jul 2025402 PMAQI
8th Jul 2025423 PMAQI
8th Jul 2025424 PMAQI
8th Jul 2025445 PMAQI
8th Jul 2025426 PMAQI
8th Jul 2025357 PMAQI
8th Jul 2025308 PMAQI
8th Jul 2025299 PMAQI
8th Jul 20253010 PMAQI
8th Jul 20252911 PMAQI
9th Jul 20253012 AMAQI
9th Jul 2025291 AMAQI
9th Jul 2025232 AMAQI
9th Jul 2025213 AMAQI
9th Jul 2025224 AMAQI
26°C22/32°C
9th Jul 2025215 AMAQI
9th Jul 2025226 AMAQI
9th Jul 2025237 AMAQI
9th Jul 2025228 AMAQI
9th Jul 2025229 AMAQI
9th Jul 20252410 AMAQI
9th Jul 20252511 AMAQI
9th Jul 20252512 PMAQI
9th Jul 2025231 PMAQI
9th Jul 2025242 PMAQI
9th Jul 2025263 PMAQI
9th Jul 2025264 PMAQI
9th Jul 2025255 PMAQI
9th Jul 2025246 PMAQI
9th Jul 2025257 PMAQI
9th Jul 2025268 PMAQI
9th Jul 2025289 PMAQI
9th Jul 20252710 PMAQI
9th Jul 20252911 PMAQI
10th Jul 20252912 AMAQI
10th Jul 2025281 AMAQI
10th Jul 2025272 AMAQI
10th Jul 2025283 AMAQI
10th Jul 2025274 AMAQI
24°C18/28°C
10th Jul 2025285 AMAQI
10th Jul 2025266 AMAQI
10th Jul 2025277 AMAQI
10th Jul 2025268 AMAQI
10th Jul 2025269 AMAQI
10th Jul 20252610 AMAQI
10th Jul 20252411 AMAQI
10th Jul 20252412 PMAQI
10th Jul 2025241 PMAQI
10th Jul 2025282 PMAQI
10th Jul 2025313 PMAQI
10th Jul 2025334 PMAQI
10th Jul 2025315 PMAQI
10th Jul 2025286 PMAQI
10th Jul 2025287 PMAQI
10th Jul 2025288 PMAQI
10th Jul 2025279 PMAQI
10th Jul 20252710 PMAQI
10th Jul 20252811 PMAQI
11th Jul 20252812 AMAQI
11th Jul 2025261 AMAQI
11th Jul 2025262 AMAQI
11th Jul 2025263 AMAQI
11th Jul 2025244 AMAQI
23°C19/28°C
11th Jul 2025235 AMAQI
11th Jul 2025226 AMAQI
11th Jul 2025257 AMAQI
11th Jul 2025268 AMAQI
11th Jul 2025279 AMAQI
11th Jul 20252710 AMAQI
11th Jul 20252711 AMAQI
11th Jul 20253012 PMAQI
11th Jul 2025351 PMAQI
11th Jul 2025352 PMAQI
11th Jul 2025353 PMAQI
11th Jul 2025354 PMAQI
11th Jul 2025365 PMAQI
11th Jul 2025336 PMAQI
11th Jul 2025297 PMAQI
11th Jul 2025308 PMAQI
11th Jul 2025349 PMAQI
11th Jul 20253510 PMAQI
11th Jul 20253711 PMAQI
12th Jul 20253612 AMAQI
12th Jul 2025371 AMAQI
12th Jul 2025342 AMAQI
12th Jul 2025343 AMAQI
12th Jul 2025324 AMAQI
23°C19/29°C
12th Jul 2025325 AMAQI
12th Jul 2025346 AMAQI
12th Jul 2025377 AMAQI
12th Jul 2025368 AMAQI
12th Jul 2025369 AMAQI
12th Jul 20253510 AMAQI
12th Jul 20253611 AMAQI
12th Jul 20253612 PMAQI
12th Jul 2025351 PMAQI
12th Jul 2025362 PMAQI
12th Jul 2025383 PMAQI
12th Jul 2025384 PMAQI
12th Jul 2025385 PMAQI
12th Jul 2025376 PMAQI
12th Jul 2025377 PMAQI
12th Jul 2025368 PMAQI
12th Jul 2025349 PMAQI
12th Jul 20253410 PMAQI
12th Jul 20253511 PMAQI
13th Jul 20253512 AMAQI
13th Jul 2025321 AMAQI
13th Jul 2025302 AMAQI
13th Jul 2025343 AMAQI
13th Jul 2025304 AMAQI
24°C21/28°C
13th Jul 2025295 AMAQI
13th Jul 2025306 AMAQI
13th Jul 2025287 AMAQI
13th Jul 2025278 AMAQI
13th Jul 2025279 AMAQI
13th Jul 20252710 AMAQI
13th Jul 20252411 AMAQI
13th Jul 20252312 PMAQI
13th Jul 2025231 PMAQI
13th Jul 2025222 PMAQI
13th Jul 2025263 PMAQI
13th Jul 2025274 PMAQI
13th Jul 2025255 PMAQI
13th Jul 2025266 PMAQI
13th Jul 2025277 PMAQI
13th Jul 2025288 PMAQI
13th Jul 2025249 PMAQI
13th Jul 20252510 PMAQI
13th Jul 20252511 PMAQI
14th Jul 20252412 AMAQI
14th Jul 2025201 AMAQI
14th Jul 2025202 AMAQI
14th Jul 2025203 AMAQI
14th Jul 2025184 AMAQI
22°C18/27°C
14th Jul 2025205 AMAQI
14th Jul 2025196 AMAQI
14th Jul 2025207 AMAQI
14th Jul 2025228 AMAQI
14th Jul 2025249 AMAQI
14th Jul 20252410 AMAQI
14th Jul 20252411 AMAQI
14th Jul 20252512 PMAQI
14th Jul 2025261 PMAQI
14th Jul 2025292 PMAQI
14th Jul 2025263 PMAQI
14th Jul 2025244 PMAQI
14th Jul 2025255 PMAQI
14th Jul 2025256 PMAQI
14th Jul 2025247 PMAQI
14th Jul 2025238 PMAQI
14th Jul 2025249 PMAQI
14th Jul 20252310 PMAQI
14th Jul 20252311 PMAQI
15th Jul 20252212 AMAQI
15th Jul 2025221 AMAQI
15th Jul 2025222 AMAQI
15th Jul 2025233 AMAQI
15th Jul 2025234 AMAQI
23°C19/28°C
15th Jul 2025245 AMAQI
15th Jul 2025246 AMAQI
15th Jul 2025267 AMAQI
15th Jul 2025268 AMAQI
15th Jul 2025299 AMAQI
15th Jul 20253310 AMAQI
15th Jul 20254111 AMAQI
15th Jul 20255012 PMAQI
15th Jul 2025521 PMAQI
15th Jul 2025492 PMAQI
15th Jul 2025373 PMAQI
15th Jul 2025394 PMAQI
15th Jul 2025385 PMAQI
15th Jul 2025386 PMAQI
15th Jul 2025327 PMAQI
15th Jul 2025348 PMAQI
15th Jul 2025389 PMAQI
15th Jul 20253810 PMAQI
15th Jul 20253711 PMAQI
16th Jul 20254012 AMAQI
16th Jul 2025491 AMAQI
16th Jul 2025452 AMAQI
16th Jul 2025483 AMAQI
16th Jul 2025474 AMAQI
25°C19/31°C
16th Jul 2025535 AMAQI
16th Jul 2025546 AMAQI
16th Jul 2025587 AMAQI
16th Jul 2025588 AMAQI
16th Jul 2025599 AMAQI
16th Jul 20255910 AMAQI
16th Jul 20255711 AMAQI
16th Jul 20255912 PMAQI
16th Jul 2025581 PMAQI
16th Jul 2025582 PMAQI
16th Jul 2025573 PMAQI
16th Jul 2025564 PMAQI
16th Jul 2025575 PMAQI
16th Jul 2025566 PMAQI
16th Jul 2025557 PMAQI
16th Jul 2025548 PMAQI
16th Jul 2025529 PMAQI
16th Jul 20255010 PMAQI
16th Jul 20255111 PMAQI
17th Jul 20254712 AMAQI
17th Jul 2025381 AMAQI
17th Jul 2025342 AMAQI
17th Jul 2025363 AMAQI
17th Jul 2025344 AMAQI
25°C15/34°C
17th Jul 2025365 AMAQI
17th Jul 2025376 AMAQI
17th Jul 2025417 AMAQI
17th Jul 2025428 AMAQI
17th Jul 2025419 AMAQI
17th Jul 20254010 AMAQI
17th Jul 20253911 AMAQI
17th Jul 20253912 PMAQI
17th Jul 2025391 PMAQI
17th Jul 2025402 PMAQI
17th Jul 2025373 PMAQI
17th Jul 2025394 PMAQI
17th Jul 2025375 PMAQI
17th Jul 2025376 PMAQI
17th Jul 2025387 PMAQI
17th Jul 2025368 PMAQI
17th Jul 2025329 PMAQI
17th Jul 20253110 PMAQI
17th Jul 20253111 PMAQI
18th Jul 20252812 AMAQI
18th Jul 2025181 AMAQI
18th Jul 2025172 AMAQI
18th Jul 2025183 AMAQI
18th Jul 2025174 AMAQI
25°C22/28°C
18th Jul 2025165 AMAQI
18th Jul 2025156 AMAQI
18th Jul 2025137 AMAQI
18th Jul 2025138 AMAQI
18th Jul 2025139 AMAQI
18th Jul 20251310 AMAQI
18th Jul 20251311 AMAQI
18th Jul 20251412 PMAQI
18th Jul 2025141 PMAQI
18th Jul 2025142 PMAQI
18th Jul 2025163 PMAQI
18th Jul 2025164 PMAQI
18th Jul 2025165 PMAQI
18th Jul 2025176 PMAQI
18th Jul 2025167 PMAQI
18th Jul 2025188 PMAQI
18th Jul 2025199 PMAQI
18th Jul 20252110 PMAQI
18th Jul 20252111 PMAQI
19th Jul 20252212 AMAQI
19th Jul 2025201 AMAQI
19th Jul 2025182 AMAQI
19th Jul 2025193 AMAQI
19th Jul 2025194 AMAQI
21°C15/27°C
19th Jul 2025185 AMAQI
19th Jul 2025206 AMAQI
19th Jul 2025197 AMAQI
19th Jul 2025198 AMAQI
19th Jul 2025189 AMAQI
19th Jul 20251810 AMAQI
19th Jul 20251811 AMAQI
19th Jul 20251912 PMAQI
19th Jul 2025191 PMAQI
19th Jul 2025202 PMAQI
19th Jul 2025263 PMAQI
19th Jul 2025264 PMAQI
19th Jul 2025245 PMAQI
19th Jul 2025236 PMAQI
19th Jul 2025227 PMAQI
19th Jul 2025228 PMAQI
19th Jul 2025249 PMAQI
19th Jul 20252610 PMAQI
19th Jul 20253011 PMAQI
20th Jul 20253112 AMAQI
20th Jul 2025301 AMAQI
20th Jul 2025222 AMAQI
20th Jul 2025223 AMAQI
20th Jul 2025214 AMAQI
19°C6/29°C
20th Jul 2025215 AMAQI
20th Jul 2025206 AMAQI
20th Jul 2025207 AMAQI
20th Jul 2025218 AMAQI
20th Jul 2025229 AMAQI
20th Jul 20252310 AMAQI
20th Jul 20252411 AMAQI
20th Jul 20252512 PMAQI
20th Jul 2025261 PMAQI
20th Jul 2025282 PMAQI
20th Jul 2025293 PMAQI
20th Jul 2025294 PMAQI
20th Jul 2025305 PMAQI
20th Jul 2025306 PMAQI
20th Jul 2025267 PMAQI
20th Jul 2025258 PMAQI
20th Jul 2025249 PMAQI
20th Jul 20252410 PMAQI
20th Jul 20252311 PMAQI
21st Jul 20252212 AMAQI
21st Jul 2025201 AMAQI
21st Jul 2025192 AMAQI
21st Jul 2025203 AMAQI
21st Jul 2025204 AMAQI
24°C18/31°C
21st Jul 2025215 AMAQI
21st Jul 2025226 AMAQI
21st Jul 2025237 AMAQI
21st Jul 2025258 AMAQI
21st Jul 2025309 AMAQI
21st Jul 20254410 AMAQI
21st Jul 20255011 AMAQI
21st Jul 20254812 PMAQI
21st Jul 2025411 PMAQI
21st Jul 2025302 PMAQI
21st Jul 2025273 PMAQI
21st Jul 2025264 PMAQI
21st Jul 2025255 PMAQI
21st Jul 2025236 PMAQI
21st Jul 2025237 PMAQI
21st Jul 2025238 PMAQI
21st Jul 2025209 PMAQI
21st Jul 20252210 PMAQI
21st Jul 20252211 PMAQI
22nd Jul 20252412 AMAQI
22nd Jul 2025181 AMAQI
22nd Jul 2025162 AMAQI
22nd Jul 2025163 AMAQI
22nd Jul 2025154 AMAQI
20°C15/25°C
22nd Jul 2025155 AMAQI
22nd Jul 2025166 AMAQI
22nd Jul 2025167 AMAQI
22nd Jul 2025178 AMAQI
22nd Jul 2025189 AMAQI
22nd Jul 20251710 AMAQI
22nd Jul 20251811 AMAQI
22nd Jul 20251712 PMAQI
22nd Jul 2025171 PMAQI
22nd Jul 2025202 PMAQI
22nd Jul 2025193 PMAQI
22nd Jul 2025184 PMAQI
22nd Jul 2025185 PMAQI
22nd Jul 2025176 PMAQI
22nd Jul 2025187 PMAQI
22nd Jul 2025188 PMAQI
22nd Jul 2025189 PMAQI
22nd Jul 20251810 PMAQI
22nd Jul 20251811 PMAQI
23rd Jul 20252012 AMAQI
23rd Jul 2025181 AMAQI
23rd Jul 2025182 AMAQI
23rd Jul 2025183 AMAQI
23rd Jul 2025184 AMAQI
16°C5/23°C
23rd Jul 2025185 AMAQI
23rd Jul 2025196 AMAQI
23rd Jul 2025187 AMAQI
23rd Jul 2025188 AMAQI
23rd Jul 2025189 AMAQI
23rd Jul 20251810 AMAQI
23rd Jul 20252111 AMAQI
23rd Jul 20252112 PMAQI
23rd Jul 2025211 PMAQI
23rd Jul 2025222 PMAQI
23rd Jul 2025223 PMAQI
23rd Jul 2025234 PMAQI
23rd Jul 2025265 PMAQI
23rd Jul 2025266 PMAQI
23rd Jul 2025237 PMAQI
23rd Jul 2025258 PMAQI
23rd Jul 2025299 PMAQI
23rd Jul 20253010 PMAQI
23rd Jul 20252811 PMAQI
24th Jul 20252612 AMAQI
24th Jul 2025261 AMAQI
24th Jul 2025262 AMAQI
24th Jul 2025283 AMAQI
24th Jul 2025264 AMAQI
20°C11/28°C
24th Jul 2025265 AMAQI
24th Jul 2025266 AMAQI
24th Jul 2025277 AMAQI
24th Jul 2025288 AMAQI
24th Jul 2025279 AMAQI
24th Jul 20252810 AMAQI
24th Jul 20253311 AMAQI
24th Jul 20253712 PMAQI
24th Jul 2025401 PMAQI
24th Jul 2025432 PMAQI
24th Jul 2025423 PMAQI
24th Jul 2025444 PMAQI
24th Jul 2025445 PMAQI
24th Jul 2025426 PMAQI
24th Jul 2025347 PMAQI
24th Jul 2025358 PMAQI
24th Jul 2025359 PMAQI
24th Jul 20253610 PMAQI
24th Jul 20253511 PMAQI
25th Jul 20254012 AMAQI
25th Jul 2025501 AMAQI
25th Jul 2025412 AMAQI
25th Jul 2025423 AMAQI
25th Jul 2025414 AMAQI
24°C15/32°C
25th Jul 2025445 AMAQI
25th Jul 2025436 AMAQI
25th Jul 2025467 AMAQI
25th Jul 2025478 AMAQI
25th Jul 2025519 AMAQI
25th Jul 20255210 AMAQI
25th Jul 20255311 AMAQI
25th Jul 20255412 PMAQI
25th Jul 2025521 PMAQI
25th Jul 2025512 PMAQI
25th Jul 2025473 PMAQI
25th Jul 2025444 PMAQI
25th Jul 2025425 PMAQI
25th Jul 2025406 PMAQI
25th Jul 2025467 PMAQI
25th Jul 2025448 PMAQI
25th Jul 2025369 PMAQI
25th Jul 20253610 PMAQI
25th Jul 20254211 PMAQI
26th Jul 20254412 AMAQI
26th Jul 2025411 AMAQI
26th Jul 2025422 AMAQI
26th Jul 2025493 AMAQI
26th Jul 2025544 AMAQI
25°C20/33°C
26th Jul 2025565 AMAQI
26th Jul 2025596 AMAQI
26th Jul 2025657 AMAQI
26th Jul 2025778 AMAQI
26th Jul 2025999 AMAQI
26th Jul 202510410 AMAQI
26th Jul 202510911 AMAQI
26th Jul 202510512 PMAQI
26th Jul 20251071 PMAQI
26th Jul 20251042 PMAQI
26th Jul 2025903 PMAQI
26th Jul 2025864 PMAQI
26th Jul 2025965 PMAQI
26th Jul 2025866 PMAQI
26th Jul 2025827 PMAQI
26th Jul 2025768 PMAQI
26th Jul 2025809 PMAQI
26th Jul 20258010 PMAQI
26th Jul 20258211 PMAQI
27th Jul 20258212 AMAQI
27th Jul 2025961 AMAQI
27th Jul 20251102 AMAQI
27th Jul 20251003 AMAQI
27th Jul 2025954 AMAQI
22°C13/30°C
27th Jul 2025935 AMAQI
27th Jul 2025986 AMAQI
27th Jul 2025967 AMAQI
27th Jul 2025968 AMAQI
27th Jul 2025939 AMAQI
27th Jul 20259110 AMAQI
27th Jul 20259111 AMAQI
27th Jul 20259012 PMAQI
27th Jul 2025861 PMAQI
27th Jul 2025902 PMAQI
27th Jul 2025903 PMAQI
27th Jul 2025894 PMAQI
27th Jul 2025865 PMAQI
27th Jul 2025846 PMAQI
27th Jul 2025907 PMAQI
27th Jul 2025898 PMAQI
27th Jul 2025829 PMAQI
27th Jul 20258210 PMAQI
27th Jul 20258111 PMAQI
28th Jul 20258212 AMAQI
28th Jul 2025781 AMAQI
28th Jul 2025742 AMAQI
28th Jul 2025733 AMAQI
28th Jul 2025664 AMAQI
20°C15/24°C
28th Jul 2025635 AMAQI
28th Jul 2025626 AMAQI
28th Jul 2025637 AMAQI
28th Jul 2025628 AMAQI
28th Jul 2025589 AMAQI
28th Jul 20255710 AMAQI
28th Jul 20255811 AMAQI
28th Jul 20256012 PMAQI
28th Jul 2025621 PMAQI
28th Jul 2025632 PMAQI
28th Jul 2025643 PMAQI
28th Jul 2025634 PMAQI
28th Jul 2025635 PMAQI
28th Jul 2025636 PMAQI
28th Jul 2025637 PMAQI
28th Jul 2025628 PMAQI
28th Jul 2025619 PMAQI
28th Jul 20256110 PMAQI
28th Jul 20256211 PMAQI
29th Jul 20256212 AMAQI
29th Jul 2025611 AMAQI
29th Jul 2025602 AMAQI
29th Jul 2025623 AMAQI
29th Jul 2025604 AMAQI
25°C18/33°C
29th Jul 2025605 AMAQI
29th Jul 2025616 AMAQI
29th Jul 2025627 AMAQI
29th Jul 2025598 AMAQI
29th Jul 2025609 AMAQI
29th Jul 20256010 AMAQI
29th Jul 20256011 AMAQI
29th Jul 20255912 PMAQI
29th Jul 2025561 PMAQI
29th Jul 2025552 PMAQI
29th Jul 2025583 PMAQI
29th Jul 2025564 PMAQI
29th Jul 2025565 PMAQI
29th Jul 2025566 PMAQI
29th Jul 2025587 PMAQI
29th Jul 2025598 PMAQI
29th Jul 2025569 PMAQI
29th Jul 20255510 PMAQI
29th Jul 20255411 PMAQI
30th Jul 20255412 AMAQI
30th Jul 2025471 AMAQI
30th Jul 2025422 AMAQI
30th Jul 2025443 AMAQI
30th Jul 2025444 AMAQI
26°C15/35°C
30th Jul 2025405 AMAQI
30th Jul 2025406 AMAQI
30th Jul 2025437 AMAQI
30th Jul 2025438 AMAQI
30th Jul 2025449 AMAQI
30th Jul 20254610 AMAQI
30th Jul 20254611 AMAQI
30th Jul 20254612 PMAQI
30th Jul 2025451 PMAQI
30th Jul 2025442 PMAQI
30th Jul 2025453 PMAQI
30th Jul 2025454 PMAQI
30th Jul 2025455 PMAQI
30th Jul 2025456 PMAQI
30th Jul 2025457 PMAQI
30th Jul 2025458 PMAQI
30th Jul 2025469 PMAQI
30th Jul 20254710 PMAQI
30th Jul 20254511 PMAQI
31st Jul 20254312 AMAQI
31st Jul 2025391 AMAQI
31st Jul 2025402 AMAQI
31st Jul 2025433 AMAQI
31st Jul 2025454 AMAQI
26°C16/33°C
31st Jul 2025505 AMAQI
31st Jul 2025586 AMAQI
31st Jul 2025597 AMAQI
31st Jul 2025688 AMAQI
31st Jul 2025769 AMAQI
31st Jul 20258310 AMAQI
31st Jul 20258711 AMAQI
31st Jul 20259012 PMAQI
31st Jul 2025891 PMAQI
31st Jul 2025872 PMAQI
31st Jul 2025873 PMAQI
31st Jul 2025824 PMAQI
31st Jul 2025805 PMAQI
31st Jul 2025786 PMAQI
31st Jul 2025687 PMAQI
31st Jul 2025728 PMAQI
31st Jul 2025719 PMAQI
31st Jul 20257110 PMAQI
31st Jul 20256711 PMAQI
1st Aug 20256512 AMAQI
1st Aug 2025611 AMAQI
1st Aug 2025592 AMAQI
1st Aug 2025603 AMAQI
1st Aug 2025604 AMAQI
19°C15/21°C
1st Aug 2025605 AMAQI
1st Aug 2025626 AMAQI
1st Aug 2025637 AMAQI
1st Aug 2025618 AMAQI
1st Aug 2025599 AMAQI
1st Aug 20255710 AMAQI
1st Aug 20255411 AMAQI
1st Aug 20255412 PMAQI
1st Aug 2025501 PMAQI
1st Aug 2025462 PMAQI
1st Aug 2025423 PMAQI
1st Aug 2025374 PMAQI
1st Aug 2025345 PMAQI
1st Aug 2025286 PMAQI
1st Aug 2025607 PMAQI
1st Aug 2025428 PMAQI
1st Aug 2025289 PMAQI
1st Aug 20252710 PMAQI
1st Aug 20253011 PMAQI
2nd Aug 20253212 AMAQI
2nd Aug 2025381 AMAQI
2nd Aug 2025342 AMAQI
2nd Aug 2025323 AMAQI
2nd Aug 2025304 AMAQI
18°C14/22°C
2nd Aug 2025305 AMAQI
2nd Aug 2025306 AMAQI
2nd Aug 2025267 AMAQI
2nd Aug 2025268 AMAQI
2nd Aug 2025259 AMAQI
2nd Aug 20252210 AMAQI
2nd Aug 20252211 AMAQI
2nd Aug 20252012 PMAQI
2nd Aug 2025201 PMAQI
2nd Aug 2025212 PMAQI
2nd Aug 2025233 PMAQI
2nd Aug 2025304 PMAQI
2nd Aug 2025345 PMAQI
2nd Aug 2025386 PMAQI
2nd Aug 2025307 PMAQI
2nd Aug 2025398 PMAQI
2nd Aug 2025509 PMAQI
2nd Aug 20255410 PMAQI
2nd Aug 20255411 PMAQI
3rd Aug 20255412 AMAQI
3rd Aug 2025601 AMAQI
3rd Aug 2025592 AMAQI
3rd Aug 2025543 AMAQI
3rd Aug 2025534 AMAQI
17°C7/26°C
3rd Aug 2025545 AMAQI
3rd Aug 2025546 AMAQI
3rd Aug 2025547 AMAQI
3rd Aug 2025548 AMAQI
3rd Aug 2025559 AMAQI
3rd Aug 20255810 AMAQI
3rd Aug 20256211 AMAQI
3rd Aug 20256812 PMAQI
3rd Aug 2025771 PMAQI
3rd Aug 2025812 PMAQI
3rd Aug 2025883 PMAQI
3rd Aug 2025894 PMAQI
3rd Aug 2025895 PMAQI
3rd Aug 2025906 PMAQI
3rd Aug 2025557 PMAQI
3rd Aug 2025738 PMAQI
3rd Aug 2025889 PMAQI
3rd Aug 20258710 PMAQI
3rd Aug 20257811 PMAQI
4th Aug 20257412 AMAQI
4th Aug 2025781 AMAQI
4th Aug 2025882 AMAQI
4th Aug 2025663 AMAQI
4th Aug 2025654 AMAQI
19°C6/29°C
4th Aug 2025705 AMAQI
4th Aug 2025726 AMAQI
4th Aug 2025767 AMAQI
4th Aug 2025818 AMAQI
4th Aug 2025859 AMAQI
4th Aug 20258610 AMAQI
4th Aug 20258711 AMAQI
4th Aug 20259312 PMAQI
4th Aug 2025981 PMAQI
4th Aug 20251142 PMAQI
4th Aug 20251063 PMAQI
4th Aug 20251074 PMAQI
4th Aug 20251075 PMAQI
4th Aug 20251036 PMAQI
4th Aug 2025847 PMAQI
4th Aug 2025968 PMAQI
4th Aug 20251049 PMAQI
4th Aug 202510610 PMAQI
4th Aug 202510611 PMAQI
5th Aug 202510812 AMAQI
5th Aug 20251071 AMAQI
5th Aug 20251062 AMAQI
21°C9/31°C
5 AM
12 PM
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 PM
43AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM
43AQI
16 hours / Day
480 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 PM (Avg. 43), while the lowest AQI was between 5 AM to 8 PM (Avg. 43).
Night time
Avg. Highest Time
12 AM - 2 AM
42AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
3 AM - 4 AM
38AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 2 AM (Avg. 42), while the lowest AQI was between 3 AM to 4 AM (Avg. 38).
2025 Days Vs Air Quality
Keene, New Hampshire, United States
2025
91%
196
9%
20
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Good
196 DaysModerate
20 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2025, 91% of 217 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
Keene, New Hampshire, 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
25AQI
25AQI
2nd January 2025
23AQI
23AQI
3rd January 2025
21AQI
21AQI
4th January 2025
27AQI
27AQI
5th January 2025
26AQI
26AQI
6th January 2025
23AQI
23AQI
7th January 2025
23AQI
23AQI
8th January 2025
25AQI
25AQI
9th January 2025
27AQI
27AQI
10th January 2025
30AQI
30AQI
11th January 2025
29AQI
29AQI
12th January 2025
33AQI
33AQI
13th January 2025
53AQI
53AQI
14th January 2025
32AQI
32AQI
15th January 2025
30AQI
30AQI
16th January 2025
40AQI
40AQI
17th January 2025
50AQI
50AQI
18th January 2025
39AQI
39AQI
19th January 2025
35AQI
35AQI
20th January 2025
30AQI
30AQI
21st January 2025
46AQI
46AQI
22nd January 2025
50AQI
50AQI
23rd January 2025
53AQI
53AQI
24th January 2025
60AQI
60AQI
25th January 2025
49AQI
49AQI
26th January 2025
44AQI
44AQI
27th January 2025
33AQI
33AQI
28th January 2025
30AQI
30AQI
29th January 2025
29AQI
29AQI
30th January 2025
29AQI
29AQI
31st January 2025
45AQI
45AQI
1st February 2025
29AQI
29AQI
2nd February 2025
26AQI
26AQI
3rd February 2025
41AQI
41AQI
4th February 2025
30AQI
30AQI
5th February 2025
28AQI
28AQI
6th February 2025
43AQI
43AQI
7th February 2025
32AQI
32AQI
8th February 2025
30AQI
30AQI
9th February 2025
29AQI
29AQI
10th February 2025
34AQI
34AQI
11th February 2025
36AQI
36AQI
12th February 2025
42AQI
42AQI
13th February 2025
27AQI
27AQI
14th February 2025
30AQI
30AQI
15th February 2025
30AQI
30AQI
16th February 2025
27AQI
27AQI
17th February 2025
30AQI
30AQI
18th February 2025
29AQI
29AQI
19th February 2025
27AQI
27AQI
20th February 2025
29AQI
29AQI
21st February 2025
26AQI
26AQI
22nd February 2025
32AQI
32AQI
23rd February 2025
44AQI
44AQI
24th February 2025
43AQI
43AQI
25th February 2025
45AQI
45AQI
26th February 2025
34AQI
34AQI
27th February 2025
35AQI
35AQI
28th February 2025
27AQI
27AQI
1st March 2025
29AQI
29AQI
2nd March 2025
30AQI
30AQI
3rd March 2025
33AQI
33AQI
4th March 2025
41AQI
41AQI
5th March 2025
37AQI
37AQI
6th March 2025
25AQI
25AQI
7th March 2025
33AQI
33AQI
8th March 2025
33AQI
33AQI
9th March 2025
30AQI
30AQI
10th March 2025
31AQI
31AQI
11th March 2025
35AQI
35AQI
12th March 2025
31AQI
31AQI
13th March 2025
23AQI
23AQI
14th March 2025
29AQI
29AQI
15th March 2025
39AQI
39AQI
16th March 2025
24AQI
24AQI
17th March 2025
17AQI
17AQI
18th March 2025
18AQI
18AQI
19th March 2025
24AQI
24AQI
20th March 2025
18AQI
18AQI
21st March 2025
15AQI
15AQI
22nd March 2025
22AQI
22AQI
23rd March 2025
18AQI
18AQI
24th March 2025
25AQI
25AQI
25th March 2025
25AQI
25AQI
26th March 2025
31AQI
31AQI
27th March 2025
19AQI
19AQI
28th March 2025
23AQI
23AQI
29th March 2025
20AQI
20AQI
30th March 2025
20AQI
20AQI
31st March 2025
35AQI
35AQI
1st April 2025
19AQI
19AQI
2nd April 2025
17AQI
17AQI
3rd April 2025
19AQI
19AQI
4th April 2025
22AQI
22AQI
5th April 2025
19AQI
19AQI
6th April 2025
15AQI
15AQI
7th April 2025
17AQI
17AQI
8th April 2025
14AQI
14AQI
9th April 2025
17AQI
17AQI
10th April 2025
23AQI
23AQI
11th April 2025
23AQI
23AQI
12th April 2025
16AQI
16AQI
13th April 2025
17AQI
17AQI
14th April 2025
25AQI
25AQI
15th April 2025
26AQI
26AQI
16th April 2025
11AQI
11AQI
17th April 2025
19AQI
19AQI
18th April 2025
23AQI
23AQI
19th April 2025
42AQI
42AQI
20th April 2025
17AQI
17AQI
21st April 2025
17AQI
17AQI
22nd April 2025
22AQI
22AQI
23rd April 2025
16AQI
16AQI
24th April 2025
22AQI
22AQI
25th April 2025
36AQI
36AQI
26th April 2025
21AQI
21AQI
27th April 2025
10AQI
10AQI
28th April 2025
19AQI
19AQI
29th April 2025
25AQI
25AQI
30th April 2025
17AQI
17AQI
1st May 2025
17AQI
17AQI
2nd May 2025
26AQI
26AQI
3rd May 2025
31AQI
31AQI
4th May 2025
23AQI
23AQI
5th May 2025
14AQI
14AQI
6th May 2025
14AQI
14AQI
7th May 2025
21AQI
21AQI
8th May 2025
20AQI
20AQI
9th May 2025
15AQI
15AQI
10th May 2025
13AQI
13AQI
11th May 2025
18AQI
18AQI
12th May 2025
21AQI
21AQI
13th May 2025
27AQI
27AQI
14th May 2025
29AQI
29AQI
15th May 2025
25AQI
25AQI
16th May 2025
32AQI
32AQI
17th May 2025
34AQI
34AQI
18th May 2025
17AQI
17AQI
19th May 2025
12AQI
12AQI
20th May 2025
12AQI
12AQI
21st May 2025
14AQI
14AQI
22nd May 2025
14AQI
14AQI
23rd May 2025
11AQI
11AQI
24th May 2025
13AQI
13AQI
25th May 2025
14AQI
14AQI
26th May 2025
21AQI
21AQI
27th May 2025
21AQI
21AQI
28th May 2025
25AQI
25AQI
29th May 2025
18AQI
18AQI
30th May 2025
26AQI
26AQI
31st May 2025
19AQI
19AQI
1st June 2025
13AQI
13AQI
2nd June 2025
17AQI
17AQI
3rd June 2025
22AQI
22AQI
4th June 2025
42AQI
42AQI
5th June 2025
60AQI
60AQI
6th June 2025
54AQI
54AQI
7th June 2025
50AQI
50AQI
8th June 2025
79AQI
79AQI
9th June 2025
77AQI
77AQI
10th June 2025
25AQI
25AQI
11th June 2025
47AQI
47AQI
12th June 2025
69AQI
69AQI
13th June 2025
50AQI
50AQI
14th June 2025
36AQI
36AQI
15th June 2025
43AQI
43AQI
16th June 2025
40AQI
40AQI
17th June 2025
27AQI
27AQI
18th June 2025
17AQI
17AQI
19th June 2025
31AQI
31AQI
20th June 2025
29AQI
29AQI
21st June 2025
53AQI
53AQI
22nd June 2025
52AQI
52AQI
23rd June 2025
49AQI
49AQI
24th June 2025
53AQI
53AQI
25th June 2025
48AQI
48AQI
26th June 2025
45AQI
45AQI
27th June 2025
28AQI
28AQI
28th June 2025
24AQI
24AQI
29th June 2025
29AQI
29AQI
30th June 2025
26AQI
26AQI
1st July 2025
37AQI
37AQI
2nd July 2025
28AQI
28AQI
3rd July 2025
40AQI
40AQI
4th July 2025
46AQI
46AQI
5th July 2025
35AQI
35AQI
6th July 2025
45AQI
45AQI
7th July 2025
51AQI
51AQI
8th July 2025
32AQI
32AQI
9th July 2025
25AQI
25AQI
10th July 2025
27AQI
27AQI
11th July 2025
29AQI
29AQI
12th July 2025
35AQI
35AQI
13th July 2025
28AQI
28AQI
14th July 2025
23AQI
23AQI
15th July 2025
33AQI
33AQI
16th July 2025
53AQI
53AQI
17th July 2025
37AQI
37AQI
18th July 2025
17AQI
17AQI
19th July 2025
21AQI
21AQI
20th July 2025
25AQI
25AQI
21st July 2025
26AQI
26AQI
22nd July 2025
18AQI
18AQI
23rd July 2025
22AQI
22AQI
24th July 2025
33AQI
33AQI
25th July 2025
44AQI
44AQI
26th July 2025
75AQI
75AQI
27th July 2025
91AQI
91AQI
28th July 2025
65AQI
65AQI
29th July 2025
59AQI
59AQI
30th July 2025
45AQI
45AQI
31st July 2025
66AQI
66AQI
1st August 2025
50AQI
50AQI
2nd August 2025
33AQI
33AQI
3rd August 2025
68AQI
68AQI
4th August 2025
81AQI
81AQI
35AQI
33AQI
27AQI
20AQI
20AQI
41AQI
39AQI
58AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202531AQI
28
3
28
31
30
31
22
8
24
7
2
2
196
20
Highest AQI recorded in
August58AQI
Lowest AQI recorded in
May20AQI
202430AQI
28
3
24
5
31
30
31
29
28
3
25
6
30
31
30
28
3
345
20
Highest AQI recorded in
February37AQI
Lowest AQI recorded in
September24AQI
202335AQI
27
4
23
5
28
3
29
1
29
2
25
5
23
7
1
28
3
26
4
30
1
26
3
21
10
315
48
1
Highest AQI recorded in
July44AQI
Lowest AQI recorded in
October27AQI
202231AQI
21
10
21
31
29
30
1
30
22
1
29
29
2
26
4
26
5
295
22
Highest AQI recorded in
January44AQI
Lowest AQI recorded in
September20AQI
202134AQI
25
5
22
6
29
2
28
2
30
1
29
1
26
4
1
24
7
30
31
28
2
29
2
331
32
1
Highest AQI recorded in
February43AQI
Lowest AQI recorded in
October24AQI
202031AQI
13
20
18
30
31
31
30
30
1
25
3
26
5
254
9
Highest AQI recorded in
December39AQI
Lowest AQI recorded in
September27AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
35AQILeast Polluted Year Recorded
2024(Avg.)
30AQIKeene's annual 2025 AQI (31) shows an average percentage change of -3.3% (improved AQI) compared to previous years: 2020 (31), 2021 (34), 2022 (31), 2023 (35), 2024 (30).
