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
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
5th Aug 2025
107AQILowest AQI recorded on
9th Aug 2024
16AQISame Day Analysis (10th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 49 of Good air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 10th Aug - 11th Aug 2025
Greenfield, Massachusetts, United States
AQI
Day
Night
.
5 AM10th Aug 2025
8 PM
4 AM11th Aug 2025
Day time
Avg. Highest Time
10AM10th Aug
52AQI
Avg. Lowest Time
5AM10th Aug
46AQI
Night time
Avg. Highest Time
2AM11th Aug
56AQI
Avg. Lowest Time
9PM10th Aug
51AQI
In the last 24 hours,
Greenfield's AQI reached its highest point of 56 at 2 AM during the Night, while the lowest point, 46, was recorded at 5 AM during the Day between 10th Aug and 11th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Greenfield, Massachusetts, United States
JulAug
12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th
Day
Night
12th Jul 2025305 AMAQI
12th Jul 2025346 AMAQI
12th Jul 2025347 AMAQI
12th Jul 2025348 AMAQI
12th Jul 2025349 AMAQI
12th Jul 20253410 AMAQI
12th Jul 20253311 AMAQI
12th Jul 20253312 PMAQI
12th Jul 2025331 PMAQI
12th Jul 2025342 PMAQI
12th Jul 2025323 PMAQI
12th Jul 2025334 PMAQI
12th Jul 2025325 PMAQI
12th Jul 2025306 PMAQI
12th Jul 2025327 PMAQI
12th Jul 2025338 PMAQI
12th Jul 2025299 PMAQI
12th Jul 20253010 PMAQI
12th Jul 20253111 PMAQI
13th Jul 20253312 AMAQI
13th Jul 2025311 AMAQI
13th Jul 2025262 AMAQI
13th Jul 2025263 AMAQI
13th Jul 2025244 AMAQI
23°C20/28°C
13th Jul 2025235 AMAQI
13th Jul 2025226 AMAQI
13th Jul 2025227 AMAQI
13th Jul 2025228 AMAQI
13th Jul 2025219 AMAQI
13th Jul 20251810 AMAQI
13th Jul 20251711 AMAQI
13th Jul 20251712 PMAQI
13th Jul 2025181 PMAQI
13th Jul 2025182 PMAQI
13th Jul 2025223 PMAQI
13th Jul 2025224 PMAQI
13th Jul 2025215 PMAQI
13th Jul 2025216 PMAQI
13th Jul 2025217 PMAQI
13th Jul 2025218 PMAQI
13th Jul 2025219 PMAQI
13th Jul 20252110 PMAQI
13th Jul 20252211 PMAQI
14th Jul 20252112 AMAQI
14th Jul 2025201 AMAQI
14th Jul 2025212 AMAQI
14th Jul 2025193 AMAQI
14th Jul 2025194 AMAQI
21°C16/28°C
14th Jul 2025205 AMAQI
14th Jul 2025206 AMAQI
14th Jul 2025207 AMAQI
14th Jul 2025228 AMAQI
14th Jul 2025229 AMAQI
14th Jul 20252210 AMAQI
14th Jul 20252311 AMAQI
14th Jul 20252212 PMAQI
14th Jul 2025231 PMAQI
14th Jul 2025252 PMAQI
14th Jul 2025243 PMAQI
14th Jul 2025244 PMAQI
14th Jul 2025235 PMAQI
14th Jul 2025226 PMAQI
14th Jul 2025237 PMAQI
14th Jul 2025238 PMAQI
14th Jul 2025249 PMAQI
14th Jul 20252210 PMAQI
14th Jul 20252311 PMAQI
15th Jul 20252312 AMAQI
15th Jul 2025231 AMAQI
15th Jul 2025252 AMAQI
15th Jul 2025253 AMAQI
15th Jul 2025284 AMAQI
22°C18/27°C
15th Jul 2025315 AMAQI
15th Jul 2025296 AMAQI
15th Jul 2025287 AMAQI
15th Jul 2025288 AMAQI
15th Jul 2025279 AMAQI
15th Jul 20252710 AMAQI
15th Jul 20252611 AMAQI
15th Jul 20253712 PMAQI
15th Jul 2025411 PMAQI
15th Jul 2025422 PMAQI
15th Jul 2025383 PMAQI
15th Jul 2025364 PMAQI
15th Jul 2025345 PMAQI
15th Jul 2025356 PMAQI
15th Jul 2025327 PMAQI
15th Jul 2025338 PMAQI
15th Jul 2025349 PMAQI
15th Jul 20253210 PMAQI
15th Jul 20253211 PMAQI
16th Jul 20253212 AMAQI
16th Jul 2025311 AMAQI
16th Jul 2025322 AMAQI
16th Jul 2025343 AMAQI
16th Jul 2025344 AMAQI
25°C19/33°C
16th Jul 2025345 AMAQI
16th Jul 2025376 AMAQI
16th Jul 2025407 AMAQI
16th Jul 2025458 AMAQI
16th Jul 2025459 AMAQI
16th Jul 20255110 AMAQI
16th Jul 20254611 AMAQI
16th Jul 20254412 PMAQI
16th Jul 2025471 PMAQI
16th Jul 2025462 PMAQI
16th Jul 2025423 PMAQI
16th Jul 2025394 PMAQI
16th Jul 2025395 PMAQI
16th Jul 2025376 PMAQI
16th Jul 2025427 PMAQI
16th Jul 2025448 PMAQI
16th Jul 2025369 PMAQI
16th Jul 20253710 PMAQI
16th Jul 20254011 PMAQI
17th Jul 20254512 AMAQI
17th Jul 2025421 AMAQI
17th Jul 2025352 AMAQI
17th Jul 2025363 AMAQI
17th Jul 2025344 AMAQI
26°C17/34°C
17th Jul 2025345 AMAQI
17th Jul 2025366 AMAQI
17th Jul 2025387 AMAQI
17th Jul 2025388 AMAQI
17th Jul 2025399 AMAQI
17th Jul 20253810 AMAQI
17th Jul 20253711 AMAQI
17th Jul 20253612 PMAQI
17th Jul 2025331 PMAQI
17th Jul 2025322 PMAQI
17th Jul 2025333 PMAQI
17th Jul 2025324 PMAQI
17th Jul 2025315 PMAQI
17th Jul 2025316 PMAQI
17th Jul 2025347 PMAQI
17th Jul 2025358 PMAQI
17th Jul 2025329 PMAQI
17th Jul 20253110 PMAQI
17th Jul 20253211 PMAQI
18th Jul 20253412 AMAQI
18th Jul 2025311 AMAQI
18th Jul 2025162 AMAQI
18th Jul 2025163 AMAQI
18th Jul 2025144 AMAQI
25°C22/29°C
18th Jul 2025135 AMAQI
18th Jul 2025146 AMAQI
18th Jul 2025147 AMAQI
18th Jul 2025138 AMAQI
18th Jul 2025139 AMAQI
18th Jul 20251210 AMAQI
18th Jul 20251211 AMAQI
18th Jul 20251412 PMAQI
18th Jul 2025131 PMAQI
18th Jul 2025152 PMAQI
18th Jul 2025163 PMAQI
18th Jul 2025164 PMAQI
18th Jul 2025165 PMAQI
18th Jul 2025166 PMAQI
18th Jul 2025167 PMAQI
18th Jul 2025178 PMAQI
18th Jul 2025219 PMAQI
18th Jul 20251910 PMAQI
18th Jul 20251911 PMAQI
19th Jul 20251812 AMAQI
19th Jul 2025181 AMAQI
19th Jul 2025182 AMAQI
19th Jul 2025183 AMAQI
19th Jul 2025184 AMAQI
21°C16/28°C
19th Jul 2025195 AMAQI
19th Jul 2025196 AMAQI
19th Jul 2025187 AMAQI
19th Jul 2025198 AMAQI
19th Jul 2025189 AMAQI
19th Jul 20251910 AMAQI
19th Jul 20251911 AMAQI
19th Jul 20252012 PMAQI
19th Jul 2025191 PMAQI
19th Jul 2025192 PMAQI
19th Jul 2025203 PMAQI
19th Jul 2025204 PMAQI
19th Jul 2025205 PMAQI
19th Jul 2025206 PMAQI
19th Jul 2025207 PMAQI
19th Jul 2025208 PMAQI
19th Jul 2025229 PMAQI
19th Jul 20252210 PMAQI
19th Jul 20252111 PMAQI
20th Jul 20252112 AMAQI
20th Jul 2025201 AMAQI
20th Jul 2025192 AMAQI
20th Jul 2025193 AMAQI
20th Jul 2025204 AMAQI
20°C8/30°C
20th Jul 2025235 AMAQI
20th Jul 2025196 AMAQI
20th Jul 2025187 AMAQI
20th Jul 2025198 AMAQI
20th Jul 2025189 AMAQI
20th Jul 20251910 AMAQI
20th Jul 20252011 AMAQI
20th Jul 20252212 PMAQI
20th Jul 2025231 PMAQI
20th Jul 2025232 PMAQI
20th Jul 2025243 PMAQI
20th Jul 2025244 PMAQI
20th Jul 2025245 PMAQI
20th Jul 2025246 PMAQI
20th Jul 2025217 PMAQI
20th Jul 2025228 PMAQI
20th Jul 2025239 PMAQI
20th Jul 20252210 PMAQI
20th Jul 20252211 PMAQI
21st Jul 20252312 AMAQI
21st Jul 2025231 AMAQI
21st Jul 2025212 AMAQI
21st Jul 2025193 AMAQI
21st Jul 2025194 AMAQI
24°C18/31°C
21st Jul 2025205 AMAQI
21st Jul 2025226 AMAQI
21st Jul 2025217 AMAQI
21st Jul 2025258 AMAQI
21st Jul 2025429 AMAQI
21st Jul 20255210 AMAQI
21st Jul 20255511 AMAQI
21st Jul 20255412 PMAQI
21st Jul 2025501 PMAQI
21st Jul 2025402 PMAQI
21st Jul 2025333 PMAQI
21st Jul 2025274 PMAQI
21st Jul 2025235 PMAQI
21st Jul 2025236 PMAQI
21st Jul 2025237 PMAQI
21st Jul 2025228 PMAQI
21st Jul 2025219 PMAQI
21st Jul 20252210 PMAQI
21st Jul 20252211 PMAQI
22nd Jul 20252412 AMAQI
22nd Jul 2025241 AMAQI
22nd Jul 2025182 AMAQI
22nd Jul 2025163 AMAQI
22nd Jul 2025164 AMAQI
20°C15/26°C
22nd Jul 2025175 AMAQI
22nd Jul 2025166 AMAQI
22nd Jul 2025167 AMAQI
22nd Jul 2025178 AMAQI
22nd Jul 2025189 AMAQI
22nd Jul 20251710 AMAQI
22nd Jul 20251711 AMAQI
22nd Jul 20251612 PMAQI
22nd Jul 2025161 PMAQI
22nd Jul 2025162 PMAQI
22nd Jul 2025173 PMAQI
22nd Jul 2025174 PMAQI
22nd Jul 2025175 PMAQI
22nd Jul 2025176 PMAQI
22nd Jul 2025187 PMAQI
22nd Jul 2025188 PMAQI
22nd Jul 2025179 PMAQI
22nd Jul 20251710 PMAQI
22nd Jul 20251711 PMAQI
23rd Jul 20251912 AMAQI
23rd Jul 2025191 AMAQI
23rd Jul 2025182 AMAQI
23rd Jul 2025163 AMAQI
23rd Jul 2025164 AMAQI
18°C10/24°C
23rd Jul 2025215 AMAQI
23rd Jul 2025176 AMAQI
23rd Jul 2025177 AMAQI
23rd Jul 2025178 AMAQI
23rd Jul 2025189 AMAQI
23rd Jul 20252010 AMAQI
23rd Jul 20251911 AMAQI
23rd Jul 20252112 PMAQI
23rd Jul 2025201 PMAQI
23rd Jul 2025222 PMAQI
23rd Jul 2025213 PMAQI
23rd Jul 2025224 PMAQI
23rd Jul 2025235 PMAQI
23rd Jul 2025246 PMAQI
23rd Jul 2025217 PMAQI
23rd Jul 2025238 PMAQI
23rd Jul 2025269 PMAQI
23rd Jul 20252610 PMAQI
23rd Jul 20252511 PMAQI
24th Jul 20252012 AMAQI
24th Jul 2025201 AMAQI
24th Jul 2025282 AMAQI
24th Jul 2025283 AMAQI
24th Jul 2025254 AMAQI
20°C12/29°C
24th Jul 2025245 AMAQI
24th Jul 2025246 AMAQI
24th Jul 2025257 AMAQI
24th Jul 2025238 AMAQI
24th Jul 2025239 AMAQI
24th Jul 20252510 AMAQI
24th Jul 20252711 AMAQI
24th Jul 20252812 PMAQI
24th Jul 2025301 PMAQI
24th Jul 2025342 PMAQI
24th Jul 2025373 PMAQI
24th Jul 2025404 PMAQI
24th Jul 2025405 PMAQI
24th Jul 2025386 PMAQI
24th Jul 2025307 PMAQI
24th Jul 2025328 PMAQI
24th Jul 2025399 PMAQI
24th Jul 20253710 PMAQI
24th Jul 20253611 PMAQI
25th Jul 20253112 AMAQI
25th Jul 2025321 AMAQI
25th Jul 2025352 AMAQI
25th Jul 2025333 AMAQI
25th Jul 2025334 AMAQI
25°C16/33°C
25th Jul 2025325 AMAQI
25th Jul 2025336 AMAQI
25th Jul 2025357 AMAQI
25th Jul 2025348 AMAQI
25th Jul 2025389 AMAQI
25th Jul 20254110 AMAQI
25th Jul 20254211 AMAQI
25th Jul 20254312 PMAQI
25th Jul 2025431 PMAQI
25th Jul 2025442 PMAQI
25th Jul 2025423 PMAQI
25th Jul 2025384 PMAQI
25th Jul 2025335 PMAQI
25th Jul 2025316 PMAQI
25th Jul 2025357 PMAQI
25th Jul 2025348 PMAQI
25th Jul 2025299 PMAQI
25th Jul 20252910 PMAQI
25th Jul 20253111 PMAQI
26th Jul 20253812 AMAQI
26th Jul 2025371 AMAQI
26th Jul 2025342 AMAQI
26th Jul 2025383 AMAQI
26th Jul 2025504 AMAQI
26°C20/34°C
26th Jul 2025565 AMAQI
26th Jul 2025616 AMAQI
26th Jul 2025687 AMAQI
26th Jul 2025768 AMAQI
26th Jul 2025839 AMAQI
26th Jul 202511110 AMAQI
26th Jul 202511211 AMAQI
26th Jul 202510612 PMAQI
26th Jul 20251041 PMAQI
26th Jul 2025962 PMAQI
26th Jul 2025903 PMAQI
26th Jul 2025914 PMAQI
26th Jul 20251025 PMAQI
26th Jul 2025946 PMAQI
26th Jul 2025837 PMAQI
26th Jul 2025758 PMAQI
26th Jul 2025829 PMAQI
26th Jul 20258210 PMAQI
26th Jul 20258311 PMAQI
27th Jul 20258012 AMAQI
27th Jul 2025921 AMAQI
27th Jul 20251252 AMAQI
27th Jul 20251083 AMAQI
27th Jul 2025984 AMAQI
23°C15/30°C
27th Jul 2025975 AMAQI
27th Jul 2025986 AMAQI
27th Jul 2025947 AMAQI
27th Jul 2025968 AMAQI
27th Jul 20251009 AMAQI
27th Jul 20259010 AMAQI
27th Jul 20259111 AMAQI
27th Jul 20259012 PMAQI
27th Jul 2025901 PMAQI
27th Jul 2025942 PMAQI
27th Jul 2025913 PMAQI
27th Jul 2025894 PMAQI
27th Jul 2025865 PMAQI
27th Jul 2025846 PMAQI
27th Jul 2025927 PMAQI
27th Jul 2025928 PMAQI
27th Jul 2025849 PMAQI
27th Jul 20258710 PMAQI
27th Jul 20258411 PMAQI
28th Jul 20258612 AMAQI
28th Jul 2025851 AMAQI
28th Jul 2025782 AMAQI
28th Jul 2025803 AMAQI
28th Jul 2025774 AMAQI
21°C16/25°C
28th Jul 2025725 AMAQI
28th Jul 2025666 AMAQI
28th Jul 2025657 AMAQI
28th Jul 2025628 AMAQI
28th Jul 2025599 AMAQI
28th Jul 20255810 AMAQI
28th Jul 20255711 AMAQI
28th Jul 20255912 PMAQI
28th Jul 2025631 PMAQI
28th Jul 2025642 PMAQI
28th Jul 2025653 PMAQI
28th Jul 2025664 PMAQI
28th Jul 2025655 PMAQI
28th Jul 2025656 PMAQI
28th Jul 2025657 PMAQI
28th Jul 2025648 PMAQI
28th Jul 2025639 PMAQI
28th Jul 20256310 PMAQI
28th Jul 20256311 PMAQI
29th Jul 20256312 AMAQI
29th Jul 2025611 AMAQI
29th Jul 2025582 AMAQI
29th Jul 2025583 AMAQI
29th Jul 2025584 AMAQI
25°C17/33°C
29th Jul 2025585 AMAQI
29th Jul 2025586 AMAQI
29th Jul 2025597 AMAQI
29th Jul 2025598 AMAQI
29th Jul 2025589 AMAQI
29th Jul 20255810 AMAQI
29th Jul 20255811 AMAQI
29th Jul 20255612 PMAQI
29th Jul 2025551 PMAQI
29th Jul 2025562 PMAQI
29th Jul 2025563 PMAQI
29th Jul 2025554 PMAQI
29th Jul 2025555 PMAQI
29th Jul 2025546 PMAQI
29th Jul 2025577 PMAQI
29th Jul 2025588 PMAQI
29th Jul 2025549 PMAQI
29th Jul 20255210 PMAQI
29th Jul 20255411 PMAQI
30th Jul 20255712 AMAQI
30th Jul 2025561 AMAQI
30th Jul 2025402 AMAQI
30th Jul 2025373 AMAQI
30th Jul 2025384 AMAQI
27°C16/36°C
30th Jul 2025375 AMAQI
30th Jul 2025406 AMAQI
30th Jul 2025427 AMAQI
30th Jul 2025428 AMAQI
30th Jul 2025429 AMAQI
30th Jul 20254210 AMAQI
30th Jul 20254211 AMAQI
30th Jul 20254112 PMAQI
30th Jul 2025411 PMAQI
30th Jul 2025422 PMAQI
30th Jul 2025423 PMAQI
30th Jul 2025424 PMAQI
30th Jul 2025425 PMAQI
30th Jul 2025426 PMAQI
30th Jul 2025427 PMAQI
30th Jul 2025428 PMAQI
30th Jul 2025439 PMAQI
30th Jul 20254210 PMAQI
30th Jul 20254111 PMAQI
31st Jul 20254412 AMAQI
31st Jul 2025431 AMAQI
31st Jul 2025392 AMAQI
31st Jul 2025403 AMAQI
31st Jul 2025434 AMAQI
26°C16/35°C
31st Jul 2025445 AMAQI
31st Jul 2025536 AMAQI
31st Jul 2025587 AMAQI
31st Jul 2025638 AMAQI
31st Jul 2025689 AMAQI
31st Jul 20257410 AMAQI
31st Jul 20258011 AMAQI
31st Jul 20258612 PMAQI
31st Jul 2025871 PMAQI
31st Jul 2025862 PMAQI
31st Jul 2025843 PMAQI
31st Jul 2025864 PMAQI
31st Jul 2025825 PMAQI
31st Jul 2025826 PMAQI
31st Jul 2025697 PMAQI
31st Jul 2025728 PMAQI
31st Jul 2025709 PMAQI
31st Jul 20257210 PMAQI
31st Jul 20256511 PMAQI
1st Aug 20256412 AMAQI
1st Aug 2025601 AMAQI
1st Aug 2025602 AMAQI
1st Aug 2025613 AMAQI
1st Aug 2025604 AMAQI
19°C14/21°C
1st Aug 2025605 AMAQI
1st Aug 2025606 AMAQI
1st Aug 2025597 AMAQI
1st Aug 2025608 AMAQI
1st Aug 2025619 AMAQI
1st Aug 20255910 AMAQI
1st Aug 20255411 AMAQI
1st Aug 20255812 PMAQI
1st Aug 2025561 PMAQI
1st Aug 2025562 PMAQI
1st Aug 2025543 PMAQI
1st Aug 2025504 PMAQI
1st Aug 2025465 PMAQI
1st Aug 2025426 PMAQI
1st Aug 2025567 PMAQI
1st Aug 2025478 PMAQI
1st Aug 2025399 PMAQI
1st Aug 20253710 PMAQI
1st Aug 20254411 PMAQI
2nd Aug 20255212 AMAQI
2nd Aug 2025481 AMAQI
2nd Aug 2025372 AMAQI
2nd Aug 2025343 AMAQI
2nd Aug 2025364 AMAQI
18°C13/23°C
2nd Aug 2025345 AMAQI
2nd Aug 2025356 AMAQI
2nd Aug 2025307 AMAQI
2nd Aug 2025278 AMAQI
2nd Aug 2025269 AMAQI
2nd Aug 20252310 AMAQI
2nd Aug 20252211 AMAQI
2nd Aug 20252012 PMAQI
2nd Aug 2025211 PMAQI
2nd Aug 2025192 PMAQI
2nd Aug 2025203 PMAQI
2nd Aug 2025194 PMAQI
2nd Aug 2025225 PMAQI
2nd Aug 2025246 PMAQI
2nd Aug 2025277 PMAQI
2nd Aug 2025308 PMAQI
2nd Aug 2025369 PMAQI
2nd Aug 20254210 PMAQI
2nd Aug 20253511 PMAQI
3rd Aug 20253112 AMAQI
3rd Aug 2025401 AMAQI
3rd Aug 2025502 AMAQI
3rd Aug 2025503 AMAQI
3rd Aug 2025504 AMAQI
18°C9/26°C
3rd Aug 2025525 AMAQI
3rd Aug 2025536 AMAQI
3rd Aug 2025527 AMAQI
3rd Aug 2025508 AMAQI
3rd Aug 2025549 AMAQI
3rd Aug 20255610 AMAQI
3rd Aug 20256011 AMAQI
3rd Aug 20256812 PMAQI
3rd Aug 2025761 PMAQI
3rd Aug 2025842 PMAQI
3rd Aug 2025853 PMAQI
3rd Aug 2025924 PMAQI
3rd Aug 2025875 PMAQI
3rd Aug 2025856 PMAQI
3rd Aug 2025547 PMAQI
3rd Aug 2025668 PMAQI
3rd Aug 2025739 PMAQI
3rd Aug 20257010 PMAQI
3rd Aug 20256111 PMAQI
4th Aug 20255612 AMAQI
4th Aug 2025581 AMAQI
4th Aug 2025662 AMAQI
4th Aug 2025563 AMAQI
4th Aug 2025554 AMAQI
20°C8/30°C
4th Aug 2025565 AMAQI
4th Aug 2025616 AMAQI
4th Aug 2025627 AMAQI
4th Aug 2025678 AMAQI
4th Aug 2025719 AMAQI
4th Aug 20257910 AMAQI
4th Aug 20258311 AMAQI
4th Aug 20259012 PMAQI
4th Aug 2025941 PMAQI
4th Aug 20251042 PMAQI
4th Aug 20251043 PMAQI
4th Aug 20251104 PMAQI
4th Aug 20251045 PMAQI
4th Aug 20251036 PMAQI
4th Aug 2025797 PMAQI
4th Aug 2025928 PMAQI
4th Aug 20251049 PMAQI
4th Aug 202510410 PMAQI
4th Aug 20259411 PMAQI
5th Aug 202511112 AMAQI
5th Aug 20251171 AMAQI
5th Aug 20251022 AMAQI
5th Aug 20251033 AMAQI
5th Aug 20251034 AMAQI
22°C9/32°C
5th Aug 20251065 AMAQI
5th Aug 20251036 AMAQI
5th Aug 20251087 AMAQI
5th Aug 20251108 AMAQI
5th Aug 20251089 AMAQI
5th Aug 202511310 AMAQI
5th Aug 202511911 AMAQI
5th Aug 202512212 PMAQI
5th Aug 20251201 PMAQI
5th Aug 20251242 PMAQI
5th Aug 20251183 PMAQI
5th Aug 20251254 PMAQI
5th Aug 20251115 PMAQI
5th Aug 20251126 PMAQI
5th Aug 20251057 PMAQI
5th Aug 20251018 PMAQI
5th Aug 2025909 PMAQI
5th Aug 20258610 PMAQI
5th Aug 20259111 PMAQI
6th Aug 20258712 AMAQI
6th Aug 2025871 AMAQI
6th Aug 2025812 AMAQI
6th Aug 2025783 AMAQI
6th Aug 2025744 AMAQI
21°C15/29°C
6th Aug 2025725 AMAQI
6th Aug 2025706 AMAQI
6th Aug 2025657 AMAQI
6th Aug 2025668 AMAQI
6th Aug 2025669 AMAQI
6th Aug 20256410 AMAQI
6th Aug 20257011 AMAQI
6th Aug 20258012 PMAQI
6th Aug 2025801 PMAQI
6th Aug 2025792 PMAQI
6th Aug 2025773 PMAQI
6th Aug 2025754 PMAQI
6th Aug 2025645 PMAQI
6th Aug 2025636 PMAQI
6th Aug 2025787 PMAQI
6th Aug 2025638 PMAQI
6th Aug 2025529 PMAQI
6th Aug 20255410 PMAQI
6th Aug 20255711 PMAQI
7th Aug 20255712 AMAQI
7th Aug 2025491 AMAQI
7th Aug 2025452 AMAQI
7th Aug 2025463 AMAQI
7th Aug 2025484 AMAQI
20°C14/24°C
7th Aug 2025415 AMAQI
7th Aug 2025426 AMAQI
7th Aug 2025447 AMAQI
7th Aug 2025428 AMAQI
7th Aug 2025439 AMAQI
7th Aug 20254410 AMAQI
7th Aug 20254611 AMAQI
7th Aug 20255212 PMAQI
7th Aug 2025541 PMAQI
7th Aug 2025532 PMAQI
7th Aug 2025523 PMAQI
7th Aug 2025514 PMAQI
7th Aug 2025505 PMAQI
7th Aug 2025516 PMAQI
7th Aug 2025517 PMAQI
7th Aug 2025518 PMAQI
7th Aug 2025519 PMAQI
7th Aug 20254910 PMAQI
7th Aug 20255011 PMAQI
8th Aug 20254612 AMAQI
8th Aug 2025341 AMAQI
8th Aug 2025332 AMAQI
8th Aug 2025373 AMAQI
8th Aug 2025374 AMAQI
22°C14/30°C
8th Aug 2025375 AMAQI
8th Aug 2025336 AMAQI
8th Aug 2025357 AMAQI
8th Aug 2025368 AMAQI
8th Aug 2025389 AMAQI
8th Aug 20253810 AMAQI
8th Aug 20254111 AMAQI
8th Aug 20254412 PMAQI
8th Aug 2025451 PMAQI
8th Aug 2025452 PMAQI
8th Aug 2025423 PMAQI
8th Aug 2025434 PMAQI
8th Aug 2025455 PMAQI
8th Aug 2025426 PMAQI
8th Aug 2025407 PMAQI
8th Aug 2025438 PMAQI
8th Aug 2025449 PMAQI
8th Aug 20254510 PMAQI
8th Aug 20254411 PMAQI
9th Aug 20254312 AMAQI
9th Aug 2025401 AMAQI
9th Aug 2025402 AMAQI
9th Aug 2025363 AMAQI
9th Aug 2025354 AMAQI
21°C11/30°C
9th Aug 2025365 AMAQI
9th Aug 2025366 AMAQI
9th Aug 2025407 AMAQI
9th Aug 2025368 AMAQI
9th Aug 2025369 AMAQI
9th Aug 20253810 AMAQI
9th Aug 20254011 AMAQI
9th Aug 20254112 PMAQI
9th Aug 2025451 PMAQI
9th Aug 2025452 PMAQI
9th Aug 2025463 PMAQI
9th Aug 2025474 PMAQI
9th Aug 2025475 PMAQI
9th Aug 2025466 PMAQI
9th Aug 2025437 PMAQI
9th Aug 2025428 PMAQI
9th Aug 2025469 PMAQI
9th Aug 20254310 PMAQI
9th Aug 20254211 PMAQI
10th Aug 20254412 AMAQI
10th Aug 2025501 AMAQI
10th Aug 2025512 AMAQI
10th Aug 2025503 AMAQI
10th Aug 2025474 AMAQI
21°C9/31°C
10th Aug 2025465 AMAQI
10th Aug 2025496 AMAQI
10th Aug 2025487 AMAQI
10th Aug 2025488 AMAQI
10th Aug 2025509 AMAQI
10th Aug 20255210 AMAQI
10th Aug 20255211 AMAQI
10th Aug 20255212 PMAQI
10th Aug 2025511 PMAQI
10th Aug 2025512 PMAQI
10th Aug 2025513 PMAQI
10th Aug 2025524 PMAQI
10th Aug 2025525 PMAQI
10th Aug 2025526 PMAQI
10th Aug 2025507 PMAQI
10th Aug 2025528 PMAQI
10th Aug 2025519 PMAQI
10th Aug 20255210 PMAQI
10th Aug 20255211 PMAQI
11th Aug 20255212 AMAQI
11th Aug 2025531 AMAQI
11th Aug 2025562 AMAQI
11th Aug 2025543 AMAQI
11th Aug 2025544 AMAQI
24°C13/33°C
11th Aug 2025545 AMAQI
5 AM11th Aug 2025546 AMAQI
11th Aug 2025547 AMAQI
11th Aug 2025548 AMAQI
11th Aug 2025549 AMAQI
11th Aug 20255510 AMAQI
12 PM
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 PM
46AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM
46AQI
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. 46), while the lowest AQI was between 5 AM to 8 PM (Avg. 46).
Night time
Avg. Highest Time
12 AM - 11 PM
44AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 4 AM
43AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 44), while the lowest AQI was between 12 AM to 4 AM (Avg. 43).
2025 Days Vs Air Quality
Greenfield, Massachusetts, United States
2025
87%
193
13%
28
0.4%
1
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Good
193 DaysModerate
28 DaysPoor
1 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2025, 87% of 223 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Greenfield, Massachusetts, 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
24AQI
24AQI
2nd January 2025
21AQI
21AQI
3rd January 2025
22AQI
22AQI
4th January 2025
26AQI
26AQI
5th January 2025
26AQI
26AQI
6th January 2025
22AQI
22AQI
7th January 2025
23AQI
23AQI
8th January 2025
26AQI
26AQI
9th January 2025
26AQI
26AQI
10th January 2025
30AQI
30AQI
11th January 2025
37AQI
37AQI
12th January 2025
46AQI
46AQI
13th January 2025
56AQI
56AQI
14th January 2025
30AQI
30AQI
15th January 2025
30AQI
30AQI
16th January 2025
36AQI
36AQI
17th January 2025
57AQI
57AQI
18th January 2025
50AQI
50AQI
19th January 2025
34AQI
34AQI
20th January 2025
30AQI
30AQI
21st January 2025
48AQI
48AQI
22nd January 2025
56AQI
56AQI
23rd January 2025
55AQI
55AQI
24th January 2025
57AQI
57AQI
25th January 2025
50AQI
50AQI
26th January 2025
51AQI
51AQI
27th January 2025
34AQI
34AQI
28th January 2025
27AQI
27AQI
29th January 2025
30AQI
30AQI
30th January 2025
29AQI
29AQI
31st January 2025
50AQI
50AQI
1st February 2025
29AQI
29AQI
2nd February 2025
27AQI
27AQI
3rd February 2025
50AQI
50AQI
4th February 2025
36AQI
36AQI
5th February 2025
27AQI
27AQI
6th February 2025
42AQI
42AQI
7th February 2025
40AQI
40AQI
8th February 2025
28AQI
28AQI
9th February 2025
31AQI
31AQI
10th February 2025
39AQI
39AQI
11th February 2025
43AQI
43AQI
12th February 2025
37AQI
37AQI
13th February 2025
25AQI
25AQI
14th February 2025
30AQI
30AQI
15th February 2025
31AQI
31AQI
16th February 2025
27AQI
27AQI
17th February 2025
30AQI
30AQI
18th February 2025
28AQI
28AQI
19th February 2025
25AQI
25AQI
20th February 2025
25AQI
25AQI
21st February 2025
26AQI
26AQI
22nd February 2025
34AQI
34AQI
23rd February 2025
48AQI
48AQI
24th February 2025
53AQI
53AQI
25th February 2025
51AQI
51AQI
26th February 2025
32AQI
32AQI
27th February 2025
34AQI
34AQI
28th February 2025
29AQI
29AQI
1st March 2025
27AQI
27AQI
2nd March 2025
28AQI
28AQI
3rd March 2025
31AQI
31AQI
4th March 2025
43AQI
43AQI
5th March 2025
40AQI
40AQI
6th March 2025
23AQI
23AQI
7th March 2025
32AQI
32AQI
8th March 2025
30AQI
30AQI
9th March 2025
31AQI
31AQI
10th March 2025
32AQI
32AQI
11th March 2025
34AQI
34AQI
12th March 2025
30AQI
30AQI
13th March 2025
21AQI
21AQI
14th March 2025
27AQI
27AQI
15th March 2025
34AQI
34AQI
16th March 2025
26AQI
26AQI
17th March 2025
20AQI
20AQI
18th March 2025
17AQI
17AQI
19th March 2025
23AQI
23AQI
20th March 2025
18AQI
18AQI
21st March 2025
15AQI
15AQI
22nd March 2025
18AQI
18AQI
23rd March 2025
20AQI
20AQI
24th March 2025
25AQI
25AQI
25th March 2025
26AQI
26AQI
26th March 2025
25AQI
25AQI
27th March 2025
19AQI
19AQI
28th March 2025
22AQI
22AQI
29th March 2025
19AQI
19AQI
30th March 2025
26AQI
26AQI
31st March 2025
38AQI
38AQI
1st April 2025
18AQI
18AQI
2nd April 2025
17AQI
17AQI
3rd April 2025
23AQI
23AQI
4th April 2025
21AQI
21AQI
5th April 2025
17AQI
17AQI
6th April 2025
18AQI
18AQI
7th April 2025
16AQI
16AQI
8th April 2025
15AQI
15AQI
9th April 2025
14AQI
14AQI
10th April 2025
23AQI
23AQI
11th April 2025
22AQI
22AQI
12th April 2025
13AQI
13AQI
13th April 2025
13AQI
13AQI
14th April 2025
20AQI
20AQI
15th April 2025
21AQI
21AQI
16th April 2025
9AQI
9AQI
17th April 2025
12AQI
12AQI
18th April 2025
19AQI
19AQI
19th April 2025
44AQI
44AQI
20th April 2025
16AQI
16AQI
21st April 2025
16AQI
16AQI
22nd April 2025
26AQI
26AQI
23rd April 2025
16AQI
16AQI
24th April 2025
23AQI
23AQI
25th April 2025
42AQI
42AQI
26th April 2025
22AQI
22AQI
27th April 2025
10AQI
10AQI
28th April 2025
17AQI
17AQI
29th April 2025
25AQI
25AQI
30th April 2025
17AQI
17AQI
1st May 2025
17AQI
17AQI
2nd May 2025
31AQI
31AQI
3rd May 2025
35AQI
35AQI
4th May 2025
32AQI
32AQI
5th May 2025
15AQI
15AQI
6th May 2025
17AQI
17AQI
7th May 2025
23AQI
23AQI
8th May 2025
21AQI
21AQI
9th May 2025
17AQI
17AQI
10th May 2025
14AQI
14AQI
11th May 2025
20AQI
20AQI
12th May 2025
21AQI
21AQI
13th May 2025
25AQI
25AQI
14th May 2025
30AQI
30AQI
15th May 2025
26AQI
26AQI
16th May 2025
35AQI
35AQI
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
13AQI
13AQI
23rd May 2025
11AQI
11AQI
24th May 2025
12AQI
12AQI
25th May 2025
14AQI
14AQI
26th May 2025
21AQI
21AQI
27th May 2025
22AQI
22AQI
28th May 2025
27AQI
27AQI
29th May 2025
19AQI
19AQI
30th May 2025
30AQI
30AQI
31st May 2025
18AQI
18AQI
1st June 2025
13AQI
13AQI
2nd June 2025
17AQI
17AQI
3rd June 2025
22AQI
22AQI
4th June 2025
40AQI
40AQI
5th June 2025
60AQI
60AQI
6th June 2025
60AQI
60AQI
7th June 2025
51AQI
51AQI
8th June 2025
79AQI
79AQI
9th June 2025
78AQI
78AQI
10th June 2025
27AQI
27AQI
11th June 2025
46AQI
46AQI
12th June 2025
67AQI
67AQI
13th June 2025
55AQI
55AQI
14th June 2025
41AQI
41AQI
15th June 2025
43AQI
43AQI
16th June 2025
42AQI
42AQI
17th June 2025
29AQI
29AQI
18th June 2025
21AQI
21AQI
19th June 2025
33AQI
33AQI
20th June 2025
31AQI
31AQI
21st June 2025
51AQI
51AQI
22nd June 2025
53AQI
53AQI
23rd June 2025
53AQI
53AQI
24th June 2025
54AQI
54AQI
25th June 2025
50AQI
50AQI
26th June 2025
44AQI
44AQI
27th June 2025
27AQI
27AQI
28th June 2025
24AQI
24AQI
29th June 2025
31AQI
31AQI
30th June 2025
29AQI
29AQI
1st July 2025
41AQI
41AQI
2nd July 2025
32AQI
32AQI
3rd July 2025
39AQI
39AQI
4th July 2025
44AQI
44AQI
5th July 2025
33AQI
33AQI
6th July 2025
48AQI
48AQI
7th July 2025
48AQI
48AQI
8th July 2025
30AQI
30AQI
9th July 2025
24AQI
24AQI
10th July 2025
24AQI
24AQI
11th July 2025
28AQI
28AQI
12th July 2025
32AQI
32AQI
13th July 2025
22AQI
22AQI
14th July 2025
22AQI
22AQI
15th July 2025
31AQI
31AQI
16th July 2025
39AQI
39AQI
17th July 2025
35AQI
35AQI
18th July 2025
17AQI
17AQI
19th July 2025
19AQI
19AQI
20th July 2025
21AQI
21AQI
21st July 2025
28AQI
28AQI
22nd July 2025
18AQI
18AQI
23rd July 2025
21AQI
21AQI
24th July 2025
30AQI
30AQI
25th July 2025
35AQI
35AQI
26th July 2025
74AQI
74AQI
27th July 2025
93AQI
93AQI
28th July 2025
68AQI
68AQI
29th July 2025
57AQI
57AQI
30th July 2025
43AQI
43AQI
31st July 2025
64AQI
64AQI
1st August 2025
54AQI
54AQI
2nd August 2025
31AQI
31AQI
3rd August 2025
61AQI
61AQI
4th August 2025
80AQI
80AQI
5th August 2025
107AQI
107AQI
6th August 2025
71AQI
71AQI
7th August 2025
48AQI
48AQI
8th August 2025
40AQI
40AQI
9th August 2025
41AQI
41AQI
10th August 2025
49AQI
49AQI
37AQI
34AQI
26AQI
20AQI
21AQI
42AQI
37AQI
58AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202532AQI
25
6
26
2
31
30
31
19
11
26
5
5
4
1
193
28
1
Highest AQI recorded in
August58AQI
Lowest AQI recorded in
April20AQI
202430AQI
29
2
28
1
31
30
31
30
27
3
26
4
30
31
29
1
28
3
350
14
Highest AQI recorded in
February36AQI
Lowest AQI recorded in
September24AQI
202336AQI
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 recorded in
July46AQI
Lowest AQI recorded in
October26AQI
202233AQI
20
11
20
1
27
4
30
30
1
29
1
24
3
29
29
2
25
5
24
6
1
290
31
1
Highest AQI recorded in
January44AQI
Lowest AQI recorded in
September23AQI
202134AQI
25
5
21
5
28
3
29
1
31
25
4
28
3
29
2
30
31
26
4
23
8
326
35
Highest AQI recorded in
December41AQI
Lowest AQI recorded in
September26AQI
202034AQI
13
20
18
30
31
31
28
2
29
1
25
5
20
11
245
19
Highest AQI recorded in
December44AQI
Lowest AQI recorded in
October28AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
36AQILeast Polluted Year Recorded
2024(Avg.)
30AQIGreenfield's annual 2025 AQI (32) shows an average percentage change of -3.3% (improved AQI) compared to previous years: 2020 (34), 2021 (34), 2022 (33), 2023 (36), 2024 (30).
