Greenfield, Massachusetts, 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
Greenfield, Massachusetts, United States
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
5th Aug 2025
107AQILowest AQI recorded on
9th Aug 2024
16AQISame Day Analysis (7th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 28 of Good air quality, showing improvement over 2025 and 2023 on the same day.
Day & Night AQI Trend: 6th Aug - 7th Aug 2026
Greenfield, Massachusetts, United States
AQI
Day
Night
.
5 AM6th Aug 2026
8 PM
4 AM7th Aug 2026
Day time
Avg. Highest Time
10AM6th Aug
50AQI
Avg. Lowest Time
7AM6th Aug
24AQI
Night time
Avg. Highest Time
10PM6th Aug
49AQI
Avg. Lowest Time
3AM7th Aug
25AQI
In the last 24 hours,
Greenfield's AQI reached its highest point of 50 at 10 AM during the Day, while the lowest point, 24, was recorded at 7 AM during the Day between 6th Aug and 7th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Greenfield, Massachusetts, United States
JulAug
09th - 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 - 07th07th
Day
Night
9th Jul 2026275 AMAQI
9th Jul 2026286 AMAQI
9th Jul 2026277 AMAQI
9th Jul 2026268 AMAQI
9th Jul 2026289 AMAQI
9th Jul 20263110 AMAQI
9th Jul 20263011 AMAQI
9th Jul 20263012 PMAQI
9th Jul 2026321 PMAQI
9th Jul 2026302 PMAQI
9th Jul 2026283 PMAQI
9th Jul 2026304 PMAQI
9th Jul 2026305 PMAQI
9th Jul 2026306 PMAQI
9th Jul 2026317 PMAQI
9th Jul 2026318 PMAQI
9th Jul 2026329 PMAQI
9th Jul 20262910 PMAQI
9th Jul 20263111 PMAQI
10th Jul 20262612 AMAQI
10th Jul 2026241 AMAQI
10th Jul 2026242 AMAQI
10th Jul 2026263 AMAQI
10th Jul 2026324 AMAQI
26°C17/35°C
10th Jul 2026325 AMAQI
10th Jul 2026346 AMAQI
10th Jul 2026327 AMAQI
10th Jul 2026248 AMAQI
10th Jul 2026369 AMAQI
10th Jul 20262310 AMAQI
10th Jul 20263611 AMAQI
10th Jul 20263712 PMAQI
10th Jul 2026341 PMAQI
10th Jul 2026332 PMAQI
10th Jul 2026303 PMAQI
10th Jul 2026244 PMAQI
10th Jul 2026125 PMAQI
10th Jul 2026266 PMAQI
10th Jul 2026367 PMAQI
10th Jul 2026368 PMAQI
10th Jul 2026379 PMAQI
10th Jul 20263010 PMAQI
10th Jul 20263011 PMAQI
11th Jul 20262612 AMAQI
11th Jul 2026251 AMAQI
11th Jul 2026242 AMAQI
11th Jul 2026283 AMAQI
11th Jul 2026264 AMAQI
26°C22/31°C
11th Jul 2026275 AMAQI
11th Jul 2026286 AMAQI
11th Jul 2026297 AMAQI
11th Jul 2026308 AMAQI
11th Jul 2026249 AMAQI
11th Jul 20263210 AMAQI
11th Jul 20263411 AMAQI
11th Jul 20263312 PMAQI
11th Jul 2026261 PMAQI
11th Jul 2026322 PMAQI
11th Jul 2026303 PMAQI
11th Jul 2026304 PMAQI
11th Jul 2026355 PMAQI
11th Jul 2026236 PMAQI
11th Jul 2026307 PMAQI
11th Jul 2026348 PMAQI
11th Jul 2026319 PMAQI
11th Jul 20262810 PMAQI
11th Jul 20262811 PMAQI
12th Jul 20261812 AMAQI
12th Jul 2026241 AMAQI
12th Jul 2026242 AMAQI
12th Jul 2026273 AMAQI
12th Jul 2026214 AMAQI
24°C18/32°C
12th Jul 2026305 AMAQI
12th Jul 2026326 AMAQI
12th Jul 2026327 AMAQI
12th Jul 2026308 AMAQI
12th Jul 2026339 AMAQI
12th Jul 20262110 AMAQI
12th Jul 20263211 AMAQI
12th Jul 20263212 PMAQI
12th Jul 2026311 PMAQI
12th Jul 2026202 PMAQI
12th Jul 2026293 PMAQI
12th Jul 2026304 PMAQI
12th Jul 2026305 PMAQI
12th Jul 2026296 PMAQI
12th Jul 2026317 PMAQI
12th Jul 2026198 PMAQI
12th Jul 2026309 PMAQI
12th Jul 20262910 PMAQI
12th Jul 20261811 PMAQI
13th Jul 20262312 AMAQI
13th Jul 2026221 AMAQI
13th Jul 2026242 AMAQI
13th Jul 2026263 AMAQI
13th Jul 2026204 AMAQI
23°C15/32°C
13th Jul 2026325 AMAQI
13th Jul 2026326 AMAQI
13th Jul 2026217 AMAQI
13th Jul 2026348 AMAQI
13th Jul 2026369 AMAQI
13th Jul 20263510 AMAQI
13th Jul 20263711 AMAQI
13th Jul 20263512 PMAQI
13th Jul 2026331 PMAQI
13th Jul 2026322 PMAQI
13th Jul 2026283 PMAQI
13th Jul 2026324 PMAQI
13th Jul 2026325 PMAQI
13th Jul 2026336 PMAQI
13th Jul 2026307 PMAQI
13th Jul 2026328 PMAQI
13th Jul 2026339 PMAQI
13th Jul 20262610 PMAQI
13th Jul 20262511 PMAQI
14th Jul 20262212 AMAQI
14th Jul 2026231 AMAQI
14th Jul 2026222 AMAQI
14th Jul 2026263 AMAQI
14th Jul 2026334 AMAQI
24°C15/31°C
14th Jul 2026325 AMAQI
14th Jul 2026306 AMAQI
14th Jul 2026337 AMAQI
14th Jul 2026328 AMAQI
14th Jul 2026349 AMAQI
14th Jul 20263610 AMAQI
14th Jul 20263611 AMAQI
14th Jul 20263612 PMAQI
14th Jul 2026341 PMAQI
14th Jul 2026352 PMAQI
14th Jul 2026283 PMAQI
14th Jul 2026324 PMAQI
14th Jul 2026285 PMAQI
14th Jul 2026346 PMAQI
14th Jul 2026327 PMAQI
14th Jul 2026328 PMAQI
14th Jul 2026329 PMAQI
14th Jul 20262810 PMAQI
14th Jul 20262611 PMAQI
15th Jul 20262212 AMAQI
15th Jul 2026211 AMAQI
15th Jul 2026502 AMAQI
15th Jul 2026233 AMAQI
15th Jul 2026344 AMAQI
28°C20/36°C
15th Jul 2026375 AMAQI
15th Jul 2026486 AMAQI
15th Jul 2026497 AMAQI
15th Jul 2026408 AMAQI
15th Jul 2026449 AMAQI
15th Jul 20265010 AMAQI
15th Jul 20265211 AMAQI
15th Jul 20265512 PMAQI
15th Jul 2026381 PMAQI
15th Jul 2026572 PMAQI
15th Jul 2026483 PMAQI
15th Jul 2026444 PMAQI
15th Jul 2026545 PMAQI
15th Jul 2026566 PMAQI
15th Jul 2026527 PMAQI
15th Jul 2026558 PMAQI
15th Jul 2026559 PMAQI
15th Jul 20265610 PMAQI
15th Jul 20265711 PMAQI
16th Jul 20265012 AMAQI
16th Jul 2026461 AMAQI
16th Jul 2026602 AMAQI
16th Jul 2026413 AMAQI
16th Jul 2026424 AMAQI
27°C20/33°C
16th Jul 2026475 AMAQI
16th Jul 2026466 AMAQI
16th Jul 2026447 AMAQI
16th Jul 2026488 AMAQI
16th Jul 2026469 AMAQI
16th Jul 20263110 AMAQI
16th Jul 20265411 AMAQI
16th Jul 20264812 PMAQI
16th Jul 2026441 PMAQI
16th Jul 2026442 PMAQI
16th Jul 2026453 PMAQI
16th Jul 2026854 PMAQI
16th Jul 2026305 PMAQI
16th Jul 2026306 PMAQI
16th Jul 2026527 PMAQI
16th Jul 2026578 PMAQI
16th Jul 2026579 PMAQI
16th Jul 20265410 PMAQI
16th Jul 20265311 PMAQI
17th Jul 20265012 AMAQI
17th Jul 2026501 AMAQI
17th Jul 2026482 AMAQI
17th Jul 2026663 AMAQI
17th Jul 2026604 AMAQI
24°C17/33°C
17th Jul 2026805 AMAQI
17th Jul 2026716 AMAQI
17th Jul 2026657 AMAQI
17th Jul 2026638 AMAQI
17th Jul 2026589 AMAQI
17th Jul 20266010 AMAQI
17th Jul 20265811 AMAQI
17th Jul 20264812 PMAQI
17th Jul 2026401 PMAQI
17th Jul 2026452 PMAQI
17th Jul 2026363 PMAQI
17th Jul 2026504 PMAQI
17th Jul 2026345 PMAQI
17th Jul 2026226 PMAQI
17th Jul 2026307 PMAQI
17th Jul 2026288 PMAQI
17th Jul 2026369 PMAQI
17th Jul 20262810 PMAQI
17th Jul 20262411 PMAQI
18th Jul 20262212 AMAQI
18th Jul 2026381 AMAQI
18th Jul 2026282 AMAQI
18th Jul 2026273 AMAQI
18th Jul 2026484 AMAQI
23°C14/30°C
18th Jul 2026365 AMAQI
18th Jul 2026486 AMAQI
18th Jul 2026587 AMAQI
18th Jul 2026208 AMAQI
18th Jul 2026769 AMAQI
18th Jul 20266610 AMAQI
18th Jul 20265411 AMAQI
18th Jul 20267612 PMAQI
18th Jul 20261161 PMAQI
18th Jul 20261272 PMAQI
18th Jul 20261083 PMAQI
18th Jul 20261584 PMAQI
18th Jul 20261105 PMAQI
18th Jul 20261606 PMAQI
18th Jul 20261547 PMAQI
18th Jul 20261468 PMAQI
18th Jul 20261259 PMAQI
18th Jul 202610710 PMAQI
18th Jul 20269011 PMAQI
19th Jul 20269212 AMAQI
19th Jul 2026711 AMAQI
19th Jul 2026682 AMAQI
19th Jul 2026603 AMAQI
19th Jul 2026564 AMAQI
21°C16/32°C
19th Jul 2026535 AMAQI
19th Jul 2026566 AMAQI
19th Jul 2026527 AMAQI
19th Jul 2026418 AMAQI
19th Jul 2026419 AMAQI
19th Jul 20264210 AMAQI
19th Jul 20263811 AMAQI
19th Jul 20264212 PMAQI
19th Jul 2026251 PMAQI
19th Jul 2026412 PMAQI
19th Jul 2026273 PMAQI
19th Jul 2026364 PMAQI
19th Jul 2026405 PMAQI
19th Jul 2026246 PMAQI
19th Jul 2026307 PMAQI
19th Jul 2026298 PMAQI
19th Jul 2026309 PMAQI
19th Jul 20263910 PMAQI
19th Jul 20263011 PMAQI
20th Jul 20263912 AMAQI
20th Jul 2026501 AMAQI
20th Jul 2026502 AMAQI
20th Jul 2026503 AMAQI
20th Jul 2026264 AMAQI
23°C18/28°C
20th Jul 2026215 AMAQI
20th Jul 2026246 AMAQI
20th Jul 2026167 AMAQI
20th Jul 202688 AMAQI
20th Jul 2026259 AMAQI
20th Jul 20261010 AMAQI
20th Jul 20262611 AMAQI
20th Jul 20262012 PMAQI
20th Jul 2026201 PMAQI
20th Jul 2026122 PMAQI
20th Jul 2026223 PMAQI
20th Jul 2026384 PMAQI
20th Jul 2026225 PMAQI
20th Jul 2026326 PMAQI
20th Jul 2026317 PMAQI
20th Jul 2026228 PMAQI
20th Jul 2026209 PMAQI
20th Jul 20261810 PMAQI
21st Jul 20263012 AMAQI
21st Jul 2026301 AMAQI
21st Jul 2026382 AMAQI
21st Jul 2026263 AMAQI
21st Jul 2026284 AMAQI
21°C12/30°C
21st Jul 2026375 AMAQI
21st Jul 2026366 AMAQI
21st Jul 2026387 AMAQI
21st Jul 2026308 AMAQI
21st Jul 2026419 AMAQI
21st Jul 20264610 AMAQI
21st Jul 20264611 AMAQI
21st Jul 20264812 PMAQI
21st Jul 2026461 PMAQI
21st Jul 2026452 PMAQI
21st Jul 2026423 PMAQI
21st Jul 2026394 PMAQI
21st Jul 2026455 PMAQI
21st Jul 2026486 PMAQI
21st Jul 2026437 PMAQI
21st Jul 2026398 PMAQI
21st Jul 2026349 PMAQI
21st Jul 20263010 PMAQI
21st Jul 20262611 PMAQI
22nd Jul 20262412 AMAQI
22nd Jul 2026271 AMAQI
22nd Jul 2026272 AMAQI
22nd Jul 2026293 AMAQI
22nd Jul 2026344 AMAQI
20°C15/26°C
22nd Jul 2026245 AMAQI
22nd Jul 2026256 AMAQI
22nd Jul 2026347 AMAQI
22nd Jul 2026348 AMAQI
22nd Jul 2026329 AMAQI
22nd Jul 20263710 AMAQI
22nd Jul 20262611 AMAQI
22nd Jul 20262512 PMAQI
22nd Jul 2026261 PMAQI
22nd Jul 2026252 PMAQI
22nd Jul 2026243 PMAQI
22nd Jul 2026224 PMAQI
22nd Jul 2026245 PMAQI
22nd Jul 2026256 PMAQI
22nd Jul 2026267 PMAQI
22nd Jul 2026288 PMAQI
22nd Jul 2026389 PMAQI
22nd Jul 20262510 PMAQI
22nd Jul 20264211 PMAQI
23rd Jul 20263212 AMAQI
23rd Jul 2026221 AMAQI
23rd Jul 2026212 AMAQI
23rd Jul 2026213 AMAQI
23rd Jul 2026244 AMAQI
23°C18/30°C
23rd Jul 2026225 AMAQI
23rd Jul 2026206 AMAQI
23rd Jul 2026187 AMAQI
23rd Jul 2026168 AMAQI
23rd Jul 2026159 AMAQI
23rd Jul 20262110 AMAQI
23rd Jul 20262111 AMAQI
23rd Jul 20262512 PMAQI
23rd Jul 2026161 PMAQI
23rd Jul 2026182 PMAQI
23rd Jul 2026183 PMAQI
23rd Jul 2026224 PMAQI
23rd Jul 2026505 PMAQI
23rd Jul 2026166 PMAQI
23rd Jul 2026227 PMAQI
23rd Jul 2026268 PMAQI
23rd Jul 2026249 PMAQI
23rd Jul 20262410 PMAQI
23rd Jul 20262511 PMAQI
24th Jul 20264012 AMAQI
24th Jul 2026291 AMAQI
24th Jul 2026212 AMAQI
24th Jul 2026323 AMAQI
24th Jul 2026264 AMAQI
21°C13/28°C
24th Jul 2026245 AMAQI
24th Jul 2026376 AMAQI
24th Jul 2026397 AMAQI
24th Jul 2026268 AMAQI
24th Jul 2026229 AMAQI
24th Jul 20262310 AMAQI
24th Jul 20262211 AMAQI
24th Jul 20262512 PMAQI
24th Jul 2026251 PMAQI
24th Jul 2026252 PMAQI
24th Jul 2026253 PMAQI
24th Jul 2026254 PMAQI
24th Jul 2026205 PMAQI
24th Jul 2026256 PMAQI
24th Jul 2026147 PMAQI
24th Jul 2026168 PMAQI
24th Jul 2026259 PMAQI
24th Jul 20262310 PMAQI
24th Jul 20262511 PMAQI
25th Jul 20262612 AMAQI
25th Jul 2026301 AMAQI
25th Jul 2026262 AMAQI
25th Jul 2026243 AMAQI
25th Jul 2026154 AMAQI
22°C12/31°C
25th Jul 2026335 AMAQI
25th Jul 2026376 AMAQI
25th Jul 2026297 AMAQI
25th Jul 2026358 AMAQI
25th Jul 2026339 AMAQI
25th Jul 20263310 AMAQI
25th Jul 20262111 AMAQI
25th Jul 20262112 PMAQI
25th Jul 2026261 PMAQI
25th Jul 2026322 PMAQI
25th Jul 2026273 PMAQI
25th Jul 2026374 PMAQI
25th Jul 2026205 PMAQI
25th Jul 2026306 PMAQI
25th Jul 2026367 PMAQI
25th Jul 2026178 PMAQI
25th Jul 2026169 PMAQI
25th Jul 20262310 PMAQI
25th Jul 20262511 PMAQI
26th Jul 20262312 AMAQI
26th Jul 2026371 AMAQI
26th Jul 2026362 AMAQI
26th Jul 2026323 AMAQI
26th Jul 2026374 AMAQI
22°C14/31°C
26th Jul 2026215 AMAQI
26th Jul 2026336 AMAQI
26th Jul 2026307 AMAQI
26th Jul 2026328 AMAQI
26th Jul 2026289 AMAQI
26th Jul 20263110 AMAQI
26th Jul 20261611 AMAQI
26th Jul 20261612 PMAQI
26th Jul 2026331 PMAQI
26th Jul 2026212 PMAQI
26th Jul 2026223 PMAQI
26th Jul 2026344 PMAQI
26th Jul 2026365 PMAQI
26th Jul 2026246 PMAQI
26th Jul 2026237 PMAQI
26th Jul 2026258 PMAQI
26th Jul 2026309 PMAQI
26th Jul 20262110 PMAQI
26th Jul 20263411 PMAQI
27th Jul 20262212 AMAQI
27th Jul 2026231 AMAQI
27th Jul 2026212 AMAQI
27th Jul 2026223 AMAQI
27th Jul 2026354 AMAQI
22°C14/31°C
27th Jul 2026315 AMAQI
27th Jul 2026316 AMAQI
27th Jul 2026307 AMAQI
27th Jul 2026248 AMAQI
27th Jul 2026339 AMAQI
27th Jul 20263410 AMAQI
27th Jul 20263511 AMAQI
27th Jul 20263712 PMAQI
27th Jul 2026361 PMAQI
27th Jul 2026412 PMAQI
27th Jul 2026403 PMAQI
27th Jul 2026394 PMAQI
27th Jul 2026415 PMAQI
27th Jul 2026526 PMAQI
27th Jul 2026397 PMAQI
27th Jul 2026408 PMAQI
27th Jul 2026389 PMAQI
27th Jul 20263810 PMAQI
27th Jul 20263211 PMAQI
28th Jul 20263412 AMAQI
28th Jul 2026401 AMAQI
28th Jul 2026392 AMAQI
28th Jul 2026323 AMAQI
28th Jul 2026404 AMAQI
23°C14/32°C
28th Jul 2026415 AMAQI
28th Jul 2026406 AMAQI
28th Jul 2026397 AMAQI
28th Jul 2026408 AMAQI
28th Jul 2026419 AMAQI
28th Jul 20264010 AMAQI
28th Jul 20264511 AMAQI
28th Jul 20264812 PMAQI
28th Jul 2026501 PMAQI
28th Jul 2026482 PMAQI
28th Jul 2026503 PMAQI
28th Jul 2026444 PMAQI
28th Jul 2026425 PMAQI
28th Jul 2026446 PMAQI
28th Jul 2026427 PMAQI
28th Jul 2026408 PMAQI
28th Jul 2026399 PMAQI
28th Jul 20263810 PMAQI
28th Jul 20262511 PMAQI
29th Jul 20263512 AMAQI
29th Jul 2026341 AMAQI
29th Jul 2026332 AMAQI
29th Jul 2026213 AMAQI
29th Jul 2026334 AMAQI
22°C18/29°C
29th Jul 2026235 AMAQI
29th Jul 2026326 AMAQI
29th Jul 2026167 AMAQI
29th Jul 2026178 AMAQI
29th Jul 2026339 AMAQI
29th Jul 20262410 AMAQI
29th Jul 20262111 AMAQI
29th Jul 20262412 PMAQI
29th Jul 2026231 PMAQI
29th Jul 2026262 PMAQI
29th Jul 2026183 PMAQI
29th Jul 2026334 PMAQI
29th Jul 2026505 PMAQI
29th Jul 2026406 PMAQI
29th Jul 2026397 PMAQI
29th Jul 2026288 PMAQI
29th Jul 2026469 PMAQI
29th Jul 20264210 PMAQI
29th Jul 20263911 PMAQI
30th Jul 20264112 AMAQI
30th Jul 2026391 AMAQI
30th Jul 2026422 AMAQI
30th Jul 2026213 AMAQI
30th Jul 2026364 AMAQI
21°C19/24°C
30th Jul 2026385 AMAQI
30th Jul 2026226 AMAQI
30th Jul 2026297 AMAQI
30th Jul 2026248 AMAQI
30th Jul 2026199 AMAQI
30th Jul 20262610 AMAQI
30th Jul 20262111 AMAQI
30th Jul 20262012 PMAQI
30th Jul 2026201 PMAQI
30th Jul 2026122 PMAQI
30th Jul 2026203 PMAQI
30th Jul 2026224 PMAQI
30th Jul 2026145 PMAQI
30th Jul 2026206 PMAQI
30th Jul 2026227 PMAQI
30th Jul 2026408 PMAQI
30th Jul 2026219 PMAQI
30th Jul 20261110 PMAQI
30th Jul 20262111 PMAQI
31st Jul 20262112 AMAQI
31st Jul 2026201 AMAQI
31st Jul 2026322 AMAQI
31st Jul 2026253 AMAQI
31st Jul 2026344 AMAQI
21°C18/27°C
31st Jul 2026205 AMAQI
31st Jul 2026256 AMAQI
31st Jul 2026217 AMAQI
31st Jul 2026258 AMAQI
31st Jul 2026249 AMAQI
31st Jul 20262110 AMAQI
31st Jul 20262511 AMAQI
31st Jul 20263012 PMAQI
31st Jul 2026261 PMAQI
31st Jul 2026362 PMAQI
31st Jul 2026233 PMAQI
31st Jul 2026294 PMAQI
31st Jul 2026255 PMAQI
31st Jul 2026346 PMAQI
31st Jul 2026257 PMAQI
31st Jul 2026268 PMAQI
31st Jul 2026219 PMAQI
31st Jul 20262310 PMAQI
31st Jul 20263411 PMAQI
1st Aug 20263512 AMAQI
1st Aug 2026361 AMAQI
1st Aug 2026352 AMAQI
1st Aug 2026373 AMAQI
1st Aug 2026244 AMAQI
22°C16/29°C
1st Aug 2026265 AMAQI
1st Aug 2026366 AMAQI
1st Aug 2026347 AMAQI
1st Aug 2026368 AMAQI
1st Aug 2026359 AMAQI
1st Aug 20263810 AMAQI
1st Aug 20263811 AMAQI
1st Aug 20264012 PMAQI
1st Aug 2026321 PMAQI
1st Aug 2026342 PMAQI
1st Aug 2026303 PMAQI
1st Aug 2026364 PMAQI
1st Aug 2026365 PMAQI
1st Aug 2026306 PMAQI
1st Aug 2026327 PMAQI
1st Aug 2026388 PMAQI
1st Aug 2026369 PMAQI
1st Aug 20263510 PMAQI
1st Aug 20263311 PMAQI
2nd Aug 20262312 AMAQI
2nd Aug 2026371 AMAQI
2nd Aug 2026402 AMAQI
2nd Aug 2026403 AMAQI
2nd Aug 2026374 AMAQI
24°C17/32°C
2nd Aug 2026375 AMAQI
2nd Aug 2026356 AMAQI
2nd Aug 2026347 AMAQI
2nd Aug 2026348 AMAQI
2nd Aug 2026379 AMAQI
2nd Aug 20263810 AMAQI
2nd Aug 20262411 AMAQI
2nd Aug 20263512 PMAQI
2nd Aug 2026331 PMAQI
2nd Aug 2026412 PMAQI
2nd Aug 2026413 PMAQI
2nd Aug 2026334 PMAQI
2nd Aug 2026335 PMAQI
2nd Aug 2026356 PMAQI
2nd Aug 2026337 PMAQI
2nd Aug 2026418 PMAQI
2nd Aug 2026249 PMAQI
2nd Aug 20261810 PMAQI
2nd Aug 20262211 PMAQI
3rd Aug 20262512 AMAQI
3rd Aug 2026291 AMAQI
3rd Aug 2026312 AMAQI
3rd Aug 2026253 AMAQI
3rd Aug 2026384 AMAQI
25°C21/31°C
3rd Aug 2026455 AMAQI
3rd Aug 2026426 AMAQI
3rd Aug 2026497 AMAQI
3rd Aug 2026408 AMAQI
3rd Aug 2026449 AMAQI
3rd Aug 20264110 AMAQI
3rd Aug 20263411 AMAQI
3rd Aug 20263712 PMAQI
3rd Aug 2026361 PMAQI
3rd Aug 2026432 PMAQI
3rd Aug 2026403 PMAQI
3rd Aug 2026304 PMAQI
3rd Aug 2026205 PMAQI
3rd Aug 2026176 PMAQI
3rd Aug 2026187 PMAQI
3rd Aug 2026248 PMAQI
3rd Aug 2026249 PMAQI
3rd Aug 20262410 PMAQI
3rd Aug 20262011 PMAQI
4th Aug 20261812 AMAQI
4th Aug 2026181 AMAQI
4th Aug 2026162 AMAQI
4th Aug 2026163 AMAQI
4th Aug 2026134 AMAQI
24°C20/27°C
4th Aug 2026155 AMAQI
4th Aug 2026156 AMAQI
4th Aug 2026207 AMAQI
4th Aug 2026208 AMAQI
4th Aug 2026189 AMAQI
4th Aug 20261810 AMAQI
4th Aug 20261611 AMAQI
4th Aug 20261812 PMAQI
4th Aug 2026241 PMAQI
4th Aug 2026142 PMAQI
4th Aug 2026593 PMAQI
4th Aug 2026404 PMAQI
4th Aug 2026175 PMAQI
4th Aug 2026186 PMAQI
4th Aug 2026177 PMAQI
4th Aug 2026208 PMAQI
4th Aug 2026129 PMAQI
4th Aug 20261210 PMAQI
4th Aug 20261011 PMAQI
5th Aug 20262012 AMAQI
5th Aug 2026231 AMAQI
5th Aug 2026122 AMAQI
5th Aug 2026203 AMAQI
5th Aug 2026214 AMAQI
23°C16/30°C
5th Aug 2026275 AMAQI
5th Aug 2026126 AMAQI
5th Aug 2026167 AMAQI
5th Aug 2026258 AMAQI
5th Aug 2026209 AMAQI
5th Aug 20263210 AMAQI
5th Aug 20262511 AMAQI
5th Aug 20263812 PMAQI
5th Aug 2026291 PMAQI
5th Aug 2026542 PMAQI
5th Aug 2026543 PMAQI
5th Aug 2026254 PMAQI
5th Aug 2026285 PMAQI
5th Aug 2026316 PMAQI
5th Aug 2026237 PMAQI
5th Aug 2026408 PMAQI
5th Aug 2026389 PMAQI
5th Aug 20263010 PMAQI
5th Aug 20264411 PMAQI
6th Aug 20262312 AMAQI
6th Aug 2026381 AMAQI
6th Aug 2026212 AMAQI
6th Aug 2026293 AMAQI
6th Aug 2026444 AMAQI
23°C16/30°C
6th Aug 2026445 AMAQI
6th Aug 2026366 AMAQI
6th Aug 2026247 AMAQI
6th Aug 2026468 AMAQI
6th Aug 2026449 AMAQI
6th Aug 20265010 AMAQI
6th Aug 20263811 AMAQI
6th Aug 20262812 PMAQI
6th Aug 2026421 PMAQI
6th Aug 2026442 PMAQI
6th Aug 2026343 PMAQI
6th Aug 2026444 PMAQI
6th Aug 2026395 PMAQI
6th Aug 2026326 PMAQI
6th Aug 2026427 PMAQI
6th Aug 2026488 PMAQI
6th Aug 2026489 PMAQI
6th Aug 20264910 PMAQI
6th Aug 20264411 PMAQI
7th Aug 20264612 AMAQI
7th Aug 2026381 AMAQI
7th Aug 2026342 AMAQI
7th Aug 2026253 AMAQI
7th Aug 2026324 AMAQI
26°C20/33°C
7th Aug 2026295 AMAQI
5 AM7th Aug 2026296 AMAQI
7th Aug 2026257 AMAQI
7th Aug 2026298 AMAQI
7th Aug 2026319 AMAQI
7th Aug 20263310 AMAQI
7th Aug 20262911 AMAQI
7th Aug 20262612 PMAQI
12 PM7th Aug 2026211 PMAQI
7th Aug 2026252 PMAQI
7th Aug 2026253 PMAQI
7th Aug 2026244 PMAQI
7th Aug 2026265 PMAQI
7th Aug 2026256 PMAQI
7th Aug 2026247 PMAQI
7th Aug 2026228 PMAQI
8 PM7th Aug 2026249 PMAQI
7th Aug 20262310 PMAQI
7th Aug 20262311 PMAQI
12 AM
4 AM
27°C22/33°C
Day time
Avg. Highest Time
4 PM
39AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
8 AM
31AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 PM to 4 PM (Avg. 39), while the lowest AQI was between 8 AM to 8 AM (Avg. 31).
Night time
Avg. Highest Time
9 PM
35AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
3 AM
30AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 PM to 9 PM (Avg. 35), while the lowest AQI was between 3 AM to 3 AM (Avg. 30).
2026 Days Vs Air Quality
Greenfield, Massachusetts, United States
2026
96%
208
4%
8
Total number of days with different AQI categories in last 219 days in 2026 (146 days remaining)
Good
208 DaysModerate
8 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 96%
Health Risk Level:
Very Low
In 2026, 96% of 219 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
Greenfield, Massachusetts, United States
AQI levels in 2026
AQI (US)
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.
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
25AQI (US)
25AQI (US)
2nd January 2026
18AQI (US)
18AQI (US)
3rd January 2026
32AQI (US)
32AQI (US)
4th January 2026
16AQI (US)
16AQI (US)
5th January 2026
30AQI (US)
30AQI (US)
6th January 2026
53AQI (US)
53AQI (US)
7th January 2026
36AQI (US)
36AQI (US)
8th January 2026
37AQI (US)
37AQI (US)
9th January 2026
44AQI (US)
44AQI (US)
10th January 2026
26AQI (US)
26AQI (US)
11th January 2026
17AQI (US)
17AQI (US)
12th January 2026
15AQI (US)
15AQI (US)
13th January 2026
39AQI (US)
39AQI (US)
14th January 2026
40AQI (US)
40AQI (US)
15th January 2026
39AQI (US)
39AQI (US)
16th January 2026
11AQI (US)
11AQI (US)
17th January 2026
44AQI (US)
44AQI (US)
18th January 2026
64AQI (US)
64AQI (US)
19th January 2026
28AQI (US)
28AQI (US)
20th January 2026
23AQI (US)
23AQI (US)
21st January 2026
38AQI (US)
38AQI (US)
22nd January 2026
41AQI (US)
41AQI (US)
23rd January 2026
44AQI (US)
44AQI (US)
24th January 2026
48AQI (US)
48AQI (US)
25th January 2026
45AQI (US)
45AQI (US)
26th January 2026
44AQI (US)
44AQI (US)
27th January 2026
42AQI (US)
42AQI (US)
28th January 2026
30AQI (US)
30AQI (US)
29th January 2026
48AQI (US)
48AQI (US)
30th January 2026
54AQI (US)
54AQI (US)
31st January 2026
46AQI (US)
46AQI (US)
1st February 2026
46AQI (US)
46AQI (US)
2nd February 2026
50AQI (US)
50AQI (US)
3rd February 2026
42AQI (US)
42AQI (US)
4th February 2026
34AQI (US)
34AQI (US)
5th February 2026
46AQI (US)
46AQI (US)
6th February 2026
42AQI (US)
42AQI (US)
7th February 2026
26AQI (US)
26AQI (US)
8th February 2026
46AQI (US)
46AQI (US)
9th February 2026
46AQI (US)
46AQI (US)
10th February 2026
40AQI (US)
40AQI (US)
11th February 2026
30AQI (US)
30AQI (US)
12th February 2026
40AQI (US)
40AQI (US)
13th February 2026
47AQI (US)
47AQI (US)
14th February 2026
40AQI (US)
40AQI (US)
15th February 2026
26AQI (US)
26AQI (US)
16th February 2026
40AQI (US)
40AQI (US)
17th February 2026
39AQI (US)
39AQI (US)
18th February 2026
38AQI (US)
38AQI (US)
19th February 2026
40AQI (US)
40AQI (US)
20th February 2026
38AQI (US)
38AQI (US)
21st February 2026
32AQI (US)
32AQI (US)
22nd February 2026
35AQI (US)
35AQI (US)
23rd February 2026
38AQI (US)
38AQI (US)
24th February 2026
45AQI (US)
45AQI (US)
25th February 2026
38AQI (US)
38AQI (US)
26th February 2026
28AQI (US)
28AQI (US)
27th February 2026
30AQI (US)
30AQI (US)
28th February 2026
33AQI (US)
33AQI (US)
1st March 2026
37AQI (US)
37AQI (US)
2nd March 2026
58AQI (US)
58AQI (US)
3rd March 2026
45AQI (US)
45AQI (US)
4th March 2026
44AQI (US)
44AQI (US)
5th March 2026
34AQI (US)
34AQI (US)
6th March 2026
36AQI (US)
36AQI (US)
7th March 2026
37AQI (US)
37AQI (US)
8th March 2026
38AQI (US)
38AQI (US)
9th March 2026
38AQI (US)
38AQI (US)
10th March 2026
26AQI (US)
26AQI (US)
11th March 2026
32AQI (US)
32AQI (US)
12th March 2026
37AQI (US)
37AQI (US)
13th March 2026
38AQI (US)
38AQI (US)
14th March 2026
32AQI (US)
32AQI (US)
15th March 2026
34AQI (US)
34AQI (US)
16th March 2026
34AQI (US)
34AQI (US)
17th March 2026
34AQI (US)
34AQI (US)
18th March 2026
32AQI (US)
32AQI (US)
19th March 2026
35AQI (US)
35AQI (US)
20th March 2026
26AQI (US)
26AQI (US)
21st March 2026
33AQI (US)
33AQI (US)
22nd March 2026
32AQI (US)
32AQI (US)
23rd March 2026
42AQI (US)
42AQI (US)
24th March 2026
36AQI (US)
36AQI (US)
25th March 2026
32AQI (US)
32AQI (US)
26th March 2026
18AQI (US)
18AQI (US)
27th March 2026
26AQI (US)
26AQI (US)
28th March 2026
32AQI (US)
32AQI (US)
29th March 2026
26AQI (US)
26AQI (US)
30th March 2026
18AQI (US)
18AQI (US)
31st March 2026
19AQI (US)
19AQI (US)
1st April 2026
27AQI (US)
27AQI (US)
2nd April 2026
30AQI (US)
30AQI (US)
3rd April 2026
26AQI (US)
26AQI (US)
4th April 2026
29AQI (US)
29AQI (US)
5th April 2026
29AQI (US)
29AQI (US)
6th April 2026
30AQI (US)
30AQI (US)
7th April 2026
28AQI (US)
28AQI (US)
8th April 2026
34AQI (US)
34AQI (US)
9th April 2026
28AQI (US)
28AQI (US)
10th April 2026
26AQI (US)
26AQI (US)
11th April 2026
29AQI (US)
29AQI (US)
12th April 2026
25AQI (US)
25AQI (US)
13th April 2026
22AQI (US)
22AQI (US)
14th April 2026
18AQI (US)
18AQI (US)
15th April 2026
22AQI (US)
22AQI (US)
16th April 2026
24AQI (US)
24AQI (US)
17th April 2026
18th April 2026
29AQI (US)
29AQI (US)
19th April 2026
32AQI (US)
32AQI (US)
20th April 2026
29AQI (US)
29AQI (US)
21st April 2026
27AQI (US)
27AQI (US)
22nd April 2026
23rd April 2026
19AQI (US)
19AQI (US)
24th April 2026
24AQI (US)
24AQI (US)
25th April 2026
28AQI (US)
28AQI (US)
26th April 2026
33AQI (US)
33AQI (US)
27th April 2026
27AQI (US)
27AQI (US)
28th April 2026
24AQI (US)
24AQI (US)
29th April 2026
18AQI (US)
18AQI (US)
30th April 2026
24AQI (US)
24AQI (US)
1st May 2026
26AQI (US)
26AQI (US)
2nd May 2026
23AQI (US)
23AQI (US)
3rd May 2026
22AQI (US)
22AQI (US)
4th May 2026
28AQI (US)
28AQI (US)
5th May 2026
30AQI (US)
30AQI (US)
6th May 2026
22AQI (US)
22AQI (US)
7th May 2026
27AQI (US)
27AQI (US)
8th May 2026
28AQI (US)
28AQI (US)
9th May 2026
10th May 2026
25AQI (US)
25AQI (US)
11th May 2026
26AQI (US)
26AQI (US)
12th May 2026
26AQI (US)
26AQI (US)
13th May 2026
24AQI (US)
24AQI (US)
14th May 2026
20AQI (US)
20AQI (US)
15th May 2026
46AQI (US)
46AQI (US)
16th May 2026
49AQI (US)
49AQI (US)
17th May 2026
51AQI (US)
51AQI (US)
18th May 2026
54AQI (US)
54AQI (US)
19th May 2026
54AQI (US)
54AQI (US)
20th May 2026
45AQI (US)
45AQI (US)
21st May 2026
40AQI (US)
40AQI (US)
22nd May 2026
40AQI (US)
40AQI (US)
23rd May 2026
44AQI (US)
44AQI (US)
24th May 2026
45AQI (US)
45AQI (US)
25th May 2026
42AQI (US)
42AQI (US)
26th May 2026
22AQI (US)
22AQI (US)
27th May 2026
13AQI (US)
13AQI (US)
28th May 2026
15AQI (US)
15AQI (US)
29th May 2026
21AQI (US)
21AQI (US)
30th May 2026
16AQI (US)
16AQI (US)
31st May 2026
24AQI (US)
24AQI (US)
1st June 2026
24AQI (US)
24AQI (US)
2nd June 2026
24AQI (US)
24AQI (US)
3rd June 2026
23AQI (US)
23AQI (US)
4th June 2026
24AQI (US)
24AQI (US)
5th June 2026
28AQI (US)
28AQI (US)
6th June 2026
25AQI (US)
25AQI (US)
7th June 2026
22AQI (US)
22AQI (US)
8th June 2026
23AQI (US)
23AQI (US)
9th June 2026
27AQI (US)
27AQI (US)
10th June 2026
28AQI (US)
28AQI (US)
11th June 2026
27AQI (US)
27AQI (US)
12th June 2026
28AQI (US)
28AQI (US)
13th June 2026
28AQI (US)
28AQI (US)
14th June 2026
26AQI (US)
26AQI (US)
15th June 2026
27AQI (US)
27AQI (US)
16th June 2026
27AQI (US)
27AQI (US)
17th June 2026
26AQI (US)
26AQI (US)
18th June 2026
27AQI (US)
27AQI (US)
19th June 2026
24AQI (US)
24AQI (US)
20th June 2026
22AQI (US)
22AQI (US)
21st June 2026
19AQI (US)
19AQI (US)
22nd June 2026
24AQI (US)
24AQI (US)
23rd June 2026
22AQI (US)
22AQI (US)
24th June 2026
23AQI (US)
23AQI (US)
25th June 2026
20AQI (US)
20AQI (US)
26th June 2026
26AQI (US)
26AQI (US)
27th June 2026
29AQI (US)
29AQI (US)
28th June 2026
28AQI (US)
28AQI (US)
29th June 2026
25AQI (US)
25AQI (US)
30th June 2026
26AQI (US)
26AQI (US)
1st July 2026
26AQI (US)
26AQI (US)
2nd July 2026
30AQI (US)
30AQI (US)
3rd July 2026
31AQI (US)
31AQI (US)
4th July 2026
26AQI (US)
26AQI (US)
5th July 2026
26AQI (US)
26AQI (US)
6th July 2026
28AQI (US)
28AQI (US)
7th July 2026
28AQI (US)
28AQI (US)
8th July 2026
27AQI (US)
27AQI (US)
9th July 2026
29AQI (US)
29AQI (US)
10th July 2026
30AQI (US)
30AQI (US)
11th July 2026
29AQI (US)
29AQI (US)
12th July 2026
27AQI (US)
27AQI (US)
13th July 2026
30AQI (US)
30AQI (US)
14th July 2026
31AQI (US)
31AQI (US)
15th July 2026
46AQI (US)
46AQI (US)
16th July 2026
48AQI (US)
48AQI (US)
17th July 2026
48AQI (US)
48AQI (US)
18th July 2026
83AQI (US)
83AQI (US)
19th July 2026
44AQI (US)
44AQI (US)
20th July 2026
26AQI (US)
26AQI (US)
21st July 2026
38AQI (US)
38AQI (US)
22nd July 2026
28AQI (US)
28AQI (US)
23rd July 2026
22AQI (US)
22AQI (US)
24th July 2026
26AQI (US)
26AQI (US)
25th July 2026
27AQI (US)
27AQI (US)
26th July 2026
28AQI (US)
28AQI (US)
27th July 2026
34AQI (US)
34AQI (US)
28th July 2026
40AQI (US)
40AQI (US)
29th July 2026
30AQI (US)
30AQI (US)
30th July 2026
26AQI (US)
26AQI (US)
31st July 2026
26AQI (US)
26AQI (US)
1st August 2026
34AQI (US)
34AQI (US)
2nd August 2026
34AQI (US)
34AQI (US)
3rd August 2026
32AQI (US)
32AQI (US)
4th August 2026
20AQI (US)
20AQI (US)
5th August 2026
28AQI (US)
28AQI (US)
6th August 2026
39AQI (US)
39AQI (US)
7th August 2026
28AQI (US)
28AQI (US)
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026
36AQI (US)
38AQI (US)
34AQI (US)
26AQI (US)
32AQI (US)
25AQI (US)
33AQI (US)
31AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202632AQI (US)
28
3
28
30
1
28
27
3
30
30
1
7
208
8
Highest AQI (US) recorded in
February38AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202531AQI (US)
25
6
26
2
31
30
31
19
11
26
5
22
8
1
30
29
2
27
3
24
7
320
44
1
Highest AQI (US) recorded in
June42AQI (US)
Lowest AQI (US) recorded in
April19AQI (US)
202430AQI (US)
28
2
28
1
31
30
31
30
27
3
26
4
30
31
29
1
28
3
349
14
Highest AQI (US) recorded in
February36AQI (US)
Lowest AQI (US) recorded in
September24AQI (US)
202336AQI (US)
26
5
23
5
28
3
29
1
29
2
23
4
3
23
7
1
28
3
25
4
1
31
26
3
22
9
313
46
4
1
Highest AQI (US) recorded in
July46AQI (US)
Lowest AQI (US) recorded in
October26AQI (US)
202233AQI (US)
20
10
20
1
27
4
30
30
1
29
1
24
3
29
29
2
25
5
24
6
1
290
30
1
Highest AQI (US) recorded in
January44AQI (US)
Lowest AQI (US) recorded in
September23AQI (US)
202134AQI (US)
25
4
21
5
28
3
29
1
31
25
4
28
3
29
2
30
31
26
4
23
8
326
34
Highest AQI (US) recorded in
January41AQI (US)
Lowest AQI (US) recorded in
October26AQI (US)
202034AQI (US)
13
20
18
30
31
31
28
2
29
1
25
5
20
11
245
19
Highest AQI (US) recorded in
December44AQI (US)
Lowest AQI (US) recorded in
October28AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2023(Avg.)
36AQI (US)Least Polluted Year Recorded
2024(Avg.)
30AQI (US)Greenfield's annual 2026 AQI (US) (32) shows an average percentage change of -2.6% (improved AQI (US)) compared to previous years: 2020 (34), 2021 (34), 2022 (33), 2023 (36), 2024 (30), 2025 (31).
