Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Greenfield Hs, 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 Hs, Greenfield, Massachusetts, United States

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
5th Aug 2025
107AQI
Lowest AQI recorded on
9th Aug 2024
16AQI

Same 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

Globe

Day & Night AQI Trend: 10th Aug - 11th Aug 2025

Greenfield Hs, Greenfield, Massachusetts, United States

AQI
Day
Night
.

5 AM10th Aug 2025

8 PM

4 AM11th Aug 2025

Day time
Avg. Highest Time
3PM10th Aug

52AQI

Avg. Lowest Time
5AM10th Aug

46AQI

Night time
Avg. Highest Time
2AM11th Aug

56AQI

Avg. Lowest Time
10PM10th Aug

51AQI

In the last 24 hours,

Greenfield Hs'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 Hs, 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 2025295 AMAQI
12th Jul 2025336 AMAQI
12th Jul 2025347 AMAQI
12th Jul 2025338 AMAQI
12th Jul 2025349 AMAQI
12th Jul 20253410 AMAQI
12th Jul 20253211 AMAQI
12th Jul 20253212 PMAQI
12th Jul 2025321 PMAQI
12th Jul 2025342 PMAQI
12th Jul 2025313 PMAQI
12th Jul 2025334 PMAQI
12th Jul 2025315 PMAQI
12th Jul 2025306 PMAQI
12th Jul 2025317 PMAQI
12th Jul 2025328 PMAQI
12th Jul 2025309 PMAQI
12th Jul 20253010 PMAQI
12th Jul 20253011 PMAQI
13th Jul 20253212 AMAQI
13th Jul 2025321 AMAQI
13th Jul 2025262 AMAQI
13th Jul 2025263 AMAQI
13th Jul 2025234 AMAQI

23°C20/28°C

13th Jul 2025225 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 20251812 PMAQI
13th Jul 2025181 PMAQI
13th Jul 2025192 PMAQI
13th Jul 2025223 PMAQI
13th Jul 2025224 PMAQI
13th Jul 2025225 PMAQI
13th Jul 2025226 PMAQI
13th Jul 2025227 PMAQI
13th Jul 2025228 PMAQI
13th Jul 2025229 PMAQI
13th Jul 20252210 PMAQI
13th Jul 20252211 PMAQI
14th Jul 20252112 AMAQI
14th Jul 2025201 AMAQI
14th Jul 2025212 AMAQI
14th Jul 2025193 AMAQI
14th Jul 2025184 AMAQI

21°C16/28°C

14th Jul 2025205 AMAQI
14th Jul 2025206 AMAQI
14th Jul 2025207 AMAQI
14th Jul 2025218 AMAQI
14th Jul 2025229 AMAQI
14th Jul 20252210 AMAQI
14th Jul 20252211 AMAQI
14th Jul 20252212 PMAQI
14th Jul 2025231 PMAQI
14th Jul 2025242 PMAQI
14th Jul 2025233 PMAQI
14th Jul 2025234 PMAQI
14th Jul 2025235 PMAQI
14th Jul 2025226 PMAQI
14th Jul 2025227 PMAQI
14th Jul 2025238 PMAQI
14th Jul 2025269 PMAQI
14th Jul 20252210 PMAQI
14th Jul 20252311 PMAQI
15th Jul 20252312 AMAQI
15th Jul 2025231 AMAQI
15th Jul 2025242 AMAQI
15th Jul 2025243 AMAQI
15th Jul 2025284 AMAQI

22°C18/27°C

15th Jul 2025305 AMAQI
15th Jul 2025286 AMAQI
15th Jul 2025287 AMAQI
15th Jul 2025278 AMAQI
15th Jul 2025269 AMAQI
15th Jul 20252710 AMAQI
15th Jul 20252611 AMAQI
15th Jul 20253612 PMAQI
15th Jul 2025391 PMAQI
15th Jul 2025372 PMAQI
15th Jul 2025333 PMAQI
15th Jul 2025334 PMAQI
15th Jul 2025325 PMAQI
15th Jul 2025326 PMAQI
15th Jul 2025317 PMAQI
15th Jul 2025328 PMAQI
15th Jul 2025329 PMAQI
15th Jul 20253210 PMAQI
15th Jul 20253211 PMAQI
16th Jul 20253112 AMAQI
16th Jul 2025301 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 20254312 PMAQI
16th Jul 2025441 PMAQI
16th Jul 2025442 PMAQI
16th Jul 2025403 PMAQI
16th Jul 2025384 PMAQI
16th Jul 2025385 PMAQI
16th Jul 2025386 PMAQI
16th Jul 2025407 PMAQI
16th Jul 2025428 PMAQI
16th Jul 2025369 PMAQI
16th Jul 20253710 PMAQI
16th Jul 20254011 PMAQI
17th Jul 20254212 AMAQI
17th Jul 2025401 AMAQI
17th Jul 2025352 AMAQI
17th Jul 2025353 AMAQI
17th Jul 2025334 AMAQI

26°C17/34°C

17th Jul 2025335 AMAQI
17th Jul 2025366 AMAQI
17th Jul 2025387 AMAQI
17th Jul 2025388 AMAQI
17th Jul 2025389 AMAQI
17th Jul 20253810 AMAQI
17th Jul 20253611 AMAQI
17th Jul 20253512 PMAQI
17th Jul 2025321 PMAQI
17th Jul 2025322 PMAQI
17th Jul 2025343 PMAQI
17th Jul 2025334 PMAQI
17th Jul 2025335 PMAQI
17th Jul 2025336 PMAQI
17th Jul 2025347 PMAQI
17th Jul 2025358 PMAQI
17th Jul 2025339 PMAQI
17th Jul 20253210 PMAQI
17th Jul 20253311 PMAQI
18th Jul 20253412 AMAQI
18th Jul 2025311 AMAQI
18th Jul 2025162 AMAQI
18th Jul 2025163 AMAQI
18th Jul 2025134 AMAQI

25°C22/29°C

18th Jul 2025125 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 2025141 PMAQI
18th Jul 2025162 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 20251810 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 2025175 AMAQI
19th Jul 2025186 AMAQI
19th Jul 2025187 AMAQI
19th Jul 2025188 AMAQI
19th Jul 2025189 AMAQI
19th Jul 20251810 AMAQI
19th Jul 20251911 AMAQI
19th Jul 20252012 PMAQI
19th Jul 2025191 PMAQI
19th Jul 2025192 PMAQI
19th Jul 2025203 PMAQI
19th Jul 2025204 PMAQI
19th Jul 2025205 PMAQI
19th Jul 2025196 PMAQI
19th Jul 2025197 PMAQI
19th Jul 2025208 PMAQI
19th Jul 2025219 PMAQI
19th Jul 20252210 PMAQI
19th Jul 20252011 PMAQI
20th Jul 20252012 AMAQI
20th Jul 2025201 AMAQI
20th Jul 2025192 AMAQI
20th Jul 2025183 AMAQI
20th Jul 2025194 AMAQI

20°C8/30°C

20th Jul 2025285 AMAQI
20th Jul 2025186 AMAQI
20th Jul 2025187 AMAQI
20th Jul 2025188 AMAQI
20th Jul 2025189 AMAQI
20th Jul 20251910 AMAQI
20th Jul 20252011 AMAQI
20th Jul 20252212 PMAQI
20th Jul 2025231 PMAQI
20th Jul 2025222 PMAQI
20th Jul 2025233 PMAQI
20th Jul 2025244 PMAQI
20th Jul 2025245 PMAQI
20th Jul 2025236 PMAQI
20th Jul 2025217 PMAQI
20th Jul 2025228 PMAQI
20th Jul 2025249 PMAQI
20th Jul 20252310 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 2025216 AMAQI
21st Jul 2025217 AMAQI
21st Jul 2025248 AMAQI
21st Jul 2025429 AMAQI
21st Jul 20255210 AMAQI
21st Jul 20255411 AMAQI
21st Jul 20255212 PMAQI
21st Jul 2025481 PMAQI
21st Jul 2025372 PMAQI
21st Jul 2025313 PMAQI
21st Jul 2025264 PMAQI
21st Jul 2025235 PMAQI
21st Jul 2025236 PMAQI
21st Jul 2025237 PMAQI
21st Jul 2025228 PMAQI
21st Jul 2025229 PMAQI
21st Jul 20252310 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 2025165 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 20251612 PMAQI
22nd Jul 2025161 PMAQI
22nd Jul 2025162 PMAQI
22nd Jul 2025173 PMAQI
22nd Jul 2025174 PMAQI
22nd Jul 2025175 PMAQI
22nd Jul 2025186 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 2025191 AMAQI
23rd Jul 2025182 AMAQI
23rd Jul 2025163 AMAQI
23rd Jul 2025164 AMAQI

18°C10/24°C

23rd Jul 2025165 AMAQI
23rd Jul 2025176 AMAQI
23rd Jul 2025177 AMAQI
23rd Jul 2025168 AMAQI
23rd Jul 2025179 AMAQI
23rd Jul 20252010 AMAQI
23rd Jul 20251811 AMAQI
23rd Jul 20252012 PMAQI
23rd Jul 2025201 PMAQI
23rd Jul 2025222 PMAQI
23rd Jul 2025203 PMAQI
23rd Jul 2025204 PMAQI
23rd Jul 2025225 PMAQI
23rd Jul 2025226 PMAQI
23rd Jul 2025207 PMAQI
23rd Jul 2025228 PMAQI
23rd Jul 2025249 PMAQI
23rd Jul 20252410 PMAQI
23rd Jul 20252311 PMAQI
24th Jul 20252012 AMAQI
24th Jul 2025201 AMAQI
24th Jul 2025282 AMAQI
24th Jul 2025273 AMAQI
24th Jul 2025234 AMAQI

20°C12/29°C

24th Jul 2025225 AMAQI
24th Jul 2025236 AMAQI
24th Jul 2025247 AMAQI
24th Jul 2025238 AMAQI
24th Jul 2025239 AMAQI
24th Jul 20252410 AMAQI
24th Jul 20252711 AMAQI
24th Jul 20252812 PMAQI
24th Jul 2025291 PMAQI
24th Jul 2025332 PMAQI
24th Jul 2025343 PMAQI
24th Jul 2025374 PMAQI
24th Jul 2025375 PMAQI
24th Jul 2025346 PMAQI
24th Jul 2025297 PMAQI
24th Jul 2025308 PMAQI
24th Jul 2025359 PMAQI
24th Jul 20253210 PMAQI
24th Jul 20253311 PMAQI
25th Jul 20253012 AMAQI
25th Jul 2025321 AMAQI
25th Jul 2025342 AMAQI
25th Jul 2025323 AMAQI
25th Jul 2025314 AMAQI

25°C16/33°C

25th Jul 2025325 AMAQI
25th Jul 2025326 AMAQI
25th Jul 2025347 AMAQI
25th Jul 2025338 AMAQI
25th Jul 2025369 AMAQI
25th Jul 20253910 AMAQI
25th Jul 20254111 AMAQI
25th Jul 20254212 PMAQI
25th Jul 2025421 PMAQI
25th Jul 2025422 PMAQI
25th Jul 2025403 PMAQI
25th Jul 2025384 PMAQI
25th Jul 2025345 PMAQI
25th Jul 2025326 PMAQI
25th Jul 2025357 PMAQI
25th Jul 2025348 PMAQI
25th Jul 2025319 PMAQI
25th Jul 20253010 PMAQI
25th Jul 20253211 PMAQI
26th Jul 20253812 AMAQI
26th Jul 2025371 AMAQI
26th Jul 2025342 AMAQI
26th Jul 2025373 AMAQI
26th Jul 2025504 AMAQI

26°C20/34°C

26th Jul 2025555 AMAQI
26th Jul 2025616 AMAQI
26th Jul 2025687 AMAQI
26th Jul 2025738 AMAQI
26th Jul 2025809 AMAQI
26th Jul 202511210 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 20259112 PMAQI
27th Jul 2025901 PMAQI
27th Jul 2025942 PMAQI
27th Jul 2025903 PMAQI
27th Jul 2025884 PMAQI
27th Jul 2025865 PMAQI
27th Jul 2025856 PMAQI
27th Jul 2025937 PMAQI
27th Jul 2025928 PMAQI
27th Jul 2025839 PMAQI
27th Jul 20258810 PMAQI
27th Jul 20258411 PMAQI
28th Jul 20258712 AMAQI
28th Jul 2025851 AMAQI
28th Jul 2025782 AMAQI
28th Jul 2025803 AMAQI
28th Jul 2025774 AMAQI

21°C16/25°C

28th Jul 2025715 AMAQI
28th Jul 2025666 AMAQI
28th Jul 2025667 AMAQI
28th Jul 2025638 AMAQI
28th Jul 2025609 AMAQI
28th Jul 20255910 AMAQI
28th Jul 20255811 AMAQI
28th Jul 20256012 PMAQI
28th Jul 2025641 PMAQI
28th Jul 2025652 PMAQI
28th Jul 2025663 PMAQI
28th Jul 2025674 PMAQI
28th Jul 2025665 PMAQI
28th Jul 2025666 PMAQI
28th Jul 2025667 PMAQI
28th Jul 2025648 PMAQI
28th Jul 2025649 PMAQI
28th Jul 20256410 PMAQI
28th Jul 20256411 PMAQI
29th Jul 20256412 AMAQI
29th Jul 2025621 AMAQI
29th Jul 2025582 AMAQI
29th Jul 2025583 AMAQI
29th Jul 2025574 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 20255711 AMAQI
29th Jul 20255612 PMAQI
29th Jul 2025541 PMAQI
29th Jul 2025562 PMAQI
29th Jul 2025573 PMAQI
29th Jul 2025564 PMAQI
29th Jul 2025565 PMAQI
29th Jul 2025556 PMAQI
29th Jul 2025587 PMAQI
29th Jul 2025588 PMAQI
29th Jul 2025569 PMAQI
29th Jul 20255410 PMAQI
29th Jul 20255411 PMAQI
30th Jul 20255712 AMAQI
30th Jul 2025561 AMAQI
30th Jul 2025402 AMAQI
30th Jul 2025363 AMAQI
30th Jul 2025374 AMAQI

27°C16/36°C

30th Jul 2025365 AMAQI
30th Jul 2025396 AMAQI
30th Jul 2025417 AMAQI
30th Jul 2025418 AMAQI
30th Jul 2025429 AMAQI
30th Jul 20254110 AMAQI
30th Jul 20254211 AMAQI
30th Jul 20254012 PMAQI
30th Jul 2025401 PMAQI
30th Jul 2025412 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 2025449 PMAQI
30th Jul 20254410 PMAQI
30th Jul 20254311 PMAQI
31st Jul 20254412 AMAQI
31st Jul 2025431 AMAQI
31st Jul 2025392 AMAQI
31st Jul 2025403 AMAQI
31st Jul 2025424 AMAQI

26°C16/35°C

31st Jul 2025425 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 20255612 AMAQI
7th Aug 2025471 AMAQI
7th Aug 2025412 AMAQI
7th Aug 2025423 AMAQI
7th Aug 2025444 AMAQI

20°C14/24°C

7th Aug 2025385 AMAQI
7th Aug 2025396 AMAQI
7th Aug 2025417 AMAQI
7th Aug 2025408 AMAQI
7th Aug 2025429 AMAQI
7th Aug 20254310 AMAQI
7th Aug 20254611 AMAQI
7th Aug 20255212 PMAQI
7th Aug 2025541 PMAQI
7th Aug 2025522 PMAQI
7th Aug 2025513 PMAQI
7th Aug 2025504 PMAQI
7th Aug 2025495 PMAQI
7th Aug 2025506 PMAQI
7th Aug 2025517 PMAQI
7th Aug 2025508 PMAQI
7th Aug 2025509 PMAQI
7th Aug 20254810 PMAQI
7th Aug 20254811 PMAQI
8th Aug 20254612 AMAQI
8th Aug 2025331 AMAQI
8th Aug 2025322 AMAQI
8th Aug 2025373 AMAQI
8th Aug 2025364 AMAQI

22°C14/30°C

8th Aug 2025365 AMAQI
8th Aug 2025326 AMAQI
8th Aug 2025357 AMAQI
8th Aug 2025358 AMAQI
8th Aug 2025389 AMAQI
8th Aug 20253810 AMAQI
8th Aug 20254011 AMAQI
8th Aug 20254212 PMAQI
8th Aug 2025451 PMAQI
8th Aug 2025442 PMAQI
8th Aug 2025403 PMAQI
8th Aug 2025404 PMAQI
8th Aug 2025435 PMAQI
8th Aug 2025396 PMAQI
8th Aug 2025397 PMAQI
8th Aug 2025428 PMAQI
8th Aug 2025429 PMAQI
8th Aug 20254210 PMAQI
8th Aug 20254211 PMAQI
9th Aug 20254212 AMAQI
9th Aug 2025381 AMAQI
9th Aug 2025382 AMAQI
9th Aug 2025343 AMAQI
9th Aug 2025334 AMAQI

21°C11/30°C

9th Aug 2025345 AMAQI
9th Aug 2025356 AMAQI
9th Aug 2025427 AMAQI
9th Aug 2025348 AMAQI
9th Aug 2025369 AMAQI
9th Aug 20253810 AMAQI
9th Aug 20254011 AMAQI
9th Aug 20254012 PMAQI
9th Aug 2025441 PMAQI
9th Aug 2025442 PMAQI
9th Aug 2025443 PMAQI
9th Aug 2025444 PMAQI
9th Aug 2025455 PMAQI
9th Aug 2025436 PMAQI
9th Aug 2025417 PMAQI
9th Aug 2025408 PMAQI
9th Aug 2025439 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 2025506 AMAQI
10th Aug 2025487 AMAQI
10th Aug 2025488 AMAQI
10th Aug 2025509 AMAQI
10th Aug 20255110 AMAQI
10th Aug 20255111 AMAQI
10th Aug 20255112 PMAQI
10th Aug 2025511 PMAQI
10th Aug 2025512 PMAQI
10th Aug 2025523 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 20255110 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 AM
11th Aug 2025546 AMAQI
11th Aug 2025547 AMAQI
11th Aug 2025548 AMAQI
11th Aug 2025549 AMAQI
11th Aug 20255610 AMAQI
11th Aug 20255611 AMAQI
11th Aug 20255612 PMAQI
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
9 PM - 11 PM

45AQI

3 hours / Day
90 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 9 PM to 11 PM (Avg. 45), while the lowest AQI was between 12 AM to 4 AM (Avg. 43).

2025 Days Vs Air Quality

Greenfield Hs, 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 Days
Moderate
28 Days
Poor
1 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under 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 Hs, 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
2nd January 2025
21AQI
3rd January 2025
22AQI
4th January 2025
26AQI
5th January 2025
26AQI
6th January 2025
22AQI
7th January 2025
23AQI
8th January 2025
26AQI
9th January 2025
26AQI
10th January 2025
30AQI
11th January 2025
37AQI
12th January 2025
46AQI
13th January 2025
56AQI
14th January 2025
30AQI
15th January 2025
30AQI
16th January 2025
36AQI
17th January 2025
57AQI
18th January 2025
50AQI
19th January 2025
34AQI
20th January 2025
30AQI
21st January 2025
48AQI
22nd January 2025
56AQI
23rd January 2025
55AQI
24th January 2025
57AQI
25th January 2025
50AQI
26th January 2025
51AQI
27th January 2025
34AQI
28th January 2025
27AQI
29th January 2025
30AQI
30th January 2025
29AQI
31st January 2025
50AQI
1st February 2025
29AQI
2nd February 2025
27AQI
3rd February 2025
50AQI
4th February 2025
36AQI
5th February 2025
27AQI
6th February 2025
42AQI
7th February 2025
40AQI
8th February 2025
28AQI
9th February 2025
31AQI
10th February 2025
39AQI
11th February 2025
43AQI
12th February 2025
37AQI
13th February 2025
25AQI
14th February 2025
30AQI
15th February 2025
31AQI
16th February 2025
27AQI
17th February 2025
30AQI
18th February 2025
28AQI
19th February 2025
25AQI
20th February 2025
25AQI
21st February 2025
26AQI
22nd February 2025
34AQI
23rd February 2025
48AQI
24th February 2025
53AQI
25th February 2025
51AQI
26th February 2025
32AQI
27th February 2025
34AQI
28th February 2025
29AQI
1st March 2025
27AQI
2nd March 2025
28AQI
3rd March 2025
31AQI
4th March 2025
43AQI
5th March 2025
40AQI
6th March 2025
23AQI
7th March 2025
32AQI
8th March 2025
30AQI
9th March 2025
31AQI
10th March 2025
32AQI
11th March 2025
34AQI
12th March 2025
30AQI
13th March 2025
21AQI
14th March 2025
27AQI
15th March 2025
34AQI
16th March 2025
26AQI
17th March 2025
20AQI
18th March 2025
17AQI
19th March 2025
23AQI
20th March 2025
18AQI
21st March 2025
15AQI
22nd March 2025
18AQI
23rd March 2025
20AQI
24th March 2025
25AQI
25th March 2025
26AQI
26th March 2025
25AQI
27th March 2025
19AQI
28th March 2025
22AQI
29th March 2025
19AQI
30th March 2025
25AQI
31st March 2025
37AQI
1st April 2025
18AQI
2nd April 2025
17AQI
3rd April 2025
23AQI
4th April 2025
21AQI
5th April 2025
17AQI
6th April 2025
17AQI
7th April 2025
16AQI
8th April 2025
16AQI
9th April 2025
14AQI
10th April 2025
22AQI
11th April 2025
21AQI
12th April 2025
13AQI
13th April 2025
13AQI
14th April 2025
19AQI
15th April 2025
19AQI
16th April 2025
9AQI
17th April 2025
11AQI
18th April 2025
18AQI
19th April 2025
43AQI
20th April 2025
15AQI
21st April 2025
16AQI
22nd April 2025
25AQI
23rd April 2025
16AQI
24th April 2025
22AQI
25th April 2025
41AQI
26th April 2025
21AQI
27th April 2025
10AQI
28th April 2025
17AQI
29th April 2025
24AQI
30th April 2025
17AQI
1st May 2025
17AQI
2nd May 2025
30AQI
3rd May 2025
34AQI
4th May 2025
31AQI
5th May 2025
15AQI
6th May 2025
17AQI
7th May 2025
23AQI
8th May 2025
20AQI
9th May 2025
17AQI
10th May 2025
13AQI
11th May 2025
20AQI
12th May 2025
20AQI
13th May 2025
25AQI
14th May 2025
29AQI
15th May 2025
25AQI
16th May 2025
34AQI
17th May 2025
33AQI
18th May 2025
16AQI
19th May 2025
12AQI
20th May 2025
12AQI
21st May 2025
14AQI
22nd May 2025
13AQI
23rd May 2025
11AQI
24th May 2025
12AQI
25th May 2025
14AQI
26th May 2025
20AQI
27th May 2025
22AQI
28th May 2025
26AQI
29th May 2025
19AQI
30th May 2025
29AQI
31st May 2025
18AQI
1st June 2025
13AQI
2nd June 2025
17AQI
3rd June 2025
22AQI
4th June 2025
40AQI
5th June 2025
60AQI
6th June 2025
59AQI
7th June 2025
50AQI
8th June 2025
79AQI
9th June 2025
79AQI
10th June 2025
27AQI
11th June 2025
46AQI
12th June 2025
67AQI
13th June 2025
55AQI
14th June 2025
40AQI
15th June 2025
41AQI
16th June 2025
41AQI
17th June 2025
30AQI
18th June 2025
21AQI
19th June 2025
32AQI
20th June 2025
30AQI
21st June 2025
51AQI
22nd June 2025
53AQI
23rd June 2025
53AQI
24th June 2025
54AQI
25th June 2025
51AQI
26th June 2025
45AQI
27th June 2025
27AQI
28th June 2025
23AQI
29th June 2025
32AQI
30th June 2025
28AQI
1st July 2025
41AQI
2nd July 2025
32AQI
3rd July 2025
38AQI
4th July 2025
46AQI
5th July 2025
33AQI
6th July 2025
47AQI
7th July 2025
49AQI
8th July 2025
31AQI
9th July 2025
24AQI
10th July 2025
24AQI
11th July 2025
27AQI
12th July 2025
31AQI
13th July 2025
23AQI
14th July 2025
22AQI
15th July 2025
29AQI
16th July 2025
38AQI
17th July 2025
35AQI
18th July 2025
17AQI
19th July 2025
19AQI
20th July 2025
21AQI
21st July 2025
28AQI
22nd July 2025
18AQI
23rd July 2025
20AQI
24th July 2025
28AQI
25th July 2025
34AQI
26th July 2025
74AQI
27th July 2025
94AQI
28th July 2025
69AQI
29th July 2025
57AQI
30th July 2025
42AQI
31st July 2025
64AQI
1st August 2025
54AQI
2nd August 2025
31AQI
3rd August 2025
61AQI
4th August 2025
80AQI
5th August 2025
107AQI
6th August 2025
71AQI
7th August 2025
47AQI
8th August 2025
39AQI
9th August 2025
40AQI
10th August 2025
49AQI

37AQI

34AQI

26AQI

19AQI

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

August

58AQI

Lowest AQI recorded in

April

19AQI

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

February

36AQI

Lowest AQI recorded in

September

24AQI

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

July

46AQI

Lowest AQI recorded in

October

26AQI

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

January

44AQI

Lowest AQI recorded in

September

23AQI

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

December

41AQI

Lowest AQI recorded in

September

26AQI

202034AQI

13
20
18
30
31
31
28
2
29
1
25
5
20
11
245
19

Highest AQI recorded in

December

44AQI

Lowest AQI recorded in

October

28AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2023(Avg.)
36AQI
Least Polluted Year Recorded
2024(Avg.)
30AQI

Greenfield Hs's annual 2025 AQI (32) shows an average percentage change of -3.9% (improved AQI) compared to previous years: 2020 (34), 2021 (34), 2022 (33), 2023 (36), 2024 (30).