Country Background

Grand Junction, Colorado, 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+

October Air Quality Analysis

Grand Junction, Colorado, United States

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
6th Oct 2024
84AQI
Lowest AQI recorded on
30th Oct 2024
8AQI


Same Day Analysis (22nd October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 26 of Good air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 21st Oct - 22nd Oct 2025

Grand Junction, Colorado, United States

AQI
Day
Night
.

7 AM21st Oct 2025

6 PM

6 AM22nd Oct 2025

Day time
Avg. Highest Time
12PM21st Oct

29AQI

Avg. Lowest Time
7AM21st Oct

16AQI

Night time
Avg. Highest Time
2AM22nd Oct

33AQI

Avg. Lowest Time
4AM22nd Oct

19AQI

In the last 24 hours,

Grand Junction's AQI reached its highest point of 33 at 2 AM during the Night, while the lowest point, 16, was recorded at 7 AM during the Day between 21st Oct and 22nd Oct 2025.

Day & Night AQI Trend : Sep - Oct 2025

Grand Junction, Colorado, United States

SepOct
22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd
Day
Night
22nd Sep 2025187 AMAQI
22nd Sep 2025188 AMAQI
22nd Sep 2025209 AMAQI
22nd Sep 20252410 AMAQI
22nd Sep 20252211 AMAQI
22nd Sep 20251912 PMAQI
22nd Sep 2025161 PMAQI
22nd Sep 2025182 PMAQI
22nd Sep 2025183 PMAQI
22nd Sep 2025224 PMAQI
22nd Sep 2025205 PMAQI
22nd Sep 2025206 PMAQI
22nd Sep 2025197 PMAQI
22nd Sep 2025218 PMAQI
22nd Sep 2025239 PMAQI
22nd Sep 20252110 PMAQI
22nd Sep 20252011 PMAQI
23rd Sep 20252112 AMAQI
23rd Sep 2025201 AMAQI
23rd Sep 2025202 AMAQI
23rd Sep 2025183 AMAQI
23rd Sep 2025164 AMAQI
23rd Sep 2025145 AMAQI
23rd Sep 2025136 AMAQI

--°C/°C

23rd Sep 2025157 AMAQI
23rd Sep 2025178 AMAQI
23rd Sep 2025189 AMAQI
23rd Sep 20252310 AMAQI
23rd Sep 20252411 AMAQI
23rd Sep 20252112 PMAQI
23rd Sep 2025181 PMAQI
23rd Sep 2025182 PMAQI
23rd Sep 2025173 PMAQI
23rd Sep 2025174 PMAQI
23rd Sep 2025165 PMAQI
23rd Sep 2025156 PMAQI
23rd Sep 2025187 PMAQI
23rd Sep 2025178 PMAQI
23rd Sep 2025169 PMAQI
23rd Sep 20251610 PMAQI
23rd Sep 20251711 PMAQI
24th Sep 20251812 AMAQI
24th Sep 2025181 AMAQI
24th Sep 2025182 AMAQI
24th Sep 2025163 AMAQI
24th Sep 2025174 AMAQI
24th Sep 2025155 AMAQI
24th Sep 2025166 AMAQI

17°C11/25°C

24th Sep 2025177 AMAQI
24th Sep 2025168 AMAQI
24th Sep 2025189 AMAQI
24th Sep 20251810 AMAQI
24th Sep 20251711 AMAQI
24th Sep 20251812 PMAQI
24th Sep 2025161 PMAQI
24th Sep 2025162 PMAQI
24th Sep 2025173 PMAQI
24th Sep 2025174 PMAQI
24th Sep 2025185 PMAQI
24th Sep 2025226 PMAQI
24th Sep 2025177 PMAQI
24th Sep 2025178 PMAQI
24th Sep 2025179 PMAQI
24th Sep 20251810 PMAQI
24th Sep 20252011 PMAQI
25th Sep 20253212 AMAQI
25th Sep 2025381 AMAQI
25th Sep 2025322 AMAQI
25th Sep 2025283 AMAQI
25th Sep 2025294 AMAQI
25th Sep 2025145 AMAQI
25th Sep 2025116 AMAQI

18°C9/28°C

25th Sep 2025117 AMAQI
25th Sep 2025118 AMAQI
25th Sep 2025159 AMAQI
25th Sep 20252010 AMAQI
25th Sep 20251411 AMAQI
25th Sep 20251212 PMAQI
25th Sep 2025111 PMAQI
25th Sep 2025112 PMAQI
25th Sep 2025113 PMAQI
25th Sep 2025104 PMAQI
25th Sep 2025175 PMAQI
25th Sep 2025146 PMAQI
25th Sep 2025107 PMAQI
25th Sep 2025168 PMAQI
25th Sep 2025159 PMAQI
25th Sep 20251710 PMAQI
25th Sep 20253411 PMAQI
26th Sep 20253112 AMAQI
26th Sep 2025301 AMAQI
26th Sep 2025232 AMAQI
26th Sep 2025173 AMAQI
26th Sep 2025174 AMAQI
26th Sep 2025125 AMAQI
26th Sep 2025196 AMAQI

19°C8/29°C

26th Sep 2025207 AMAQI
26th Sep 2025128 AMAQI
26th Sep 2025199 AMAQI
26th Sep 20252610 AMAQI
26th Sep 20252011 AMAQI
26th Sep 20251612 PMAQI
26th Sep 2025141 PMAQI
26th Sep 2025132 PMAQI
26th Sep 2025153 PMAQI
26th Sep 2025124 PMAQI
26th Sep 2025105 PMAQI
26th Sep 2025106 PMAQI
26th Sep 2025107 PMAQI
26th Sep 2025118 PMAQI
26th Sep 2025139 PMAQI
26th Sep 20251410 PMAQI
26th Sep 20252911 PMAQI
27th Sep 20253712 AMAQI
27th Sep 2025241 AMAQI
27th Sep 2025282 AMAQI
27th Sep 2025343 AMAQI
27th Sep 2025344 AMAQI
27th Sep 2025245 AMAQI
27th Sep 2025156 AMAQI

20°C9/29°C

27th Sep 2025177 AMAQI
27th Sep 2025168 AMAQI
27th Sep 2025189 AMAQI
27th Sep 20251810 AMAQI
27th Sep 20251811 AMAQI
27th Sep 20251912 PMAQI
27th Sep 2025171 PMAQI
27th Sep 2025162 PMAQI
27th Sep 2025143 PMAQI
27th Sep 2025124 PMAQI
27th Sep 2025115 PMAQI
27th Sep 2025106 PMAQI
27th Sep 2025117 PMAQI
27th Sep 2025138 PMAQI
27th Sep 2025129 PMAQI
27th Sep 20251310 PMAQI
27th Sep 20251211 PMAQI
28th Sep 20251212 AMAQI
28th Sep 2025101 AMAQI
28th Sep 2025112 AMAQI
28th Sep 2025113 AMAQI
28th Sep 2025114 AMAQI
28th Sep 2025115 AMAQI
28th Sep 2025116 AMAQI

21°C12/31°C

28th Sep 2025117 AMAQI
28th Sep 202598 AMAQI
28th Sep 202599 AMAQI
28th Sep 2025910 AMAQI
28th Sep 20251011 AMAQI
28th Sep 20251412 PMAQI
28th Sep 2025201 PMAQI
28th Sep 2025232 PMAQI
28th Sep 2025233 PMAQI
28th Sep 2025204 PMAQI
28th Sep 2025175 PMAQI
28th Sep 2025176 PMAQI
28th Sep 2025207 PMAQI
28th Sep 2025188 PMAQI
28th Sep 2025179 PMAQI
28th Sep 20252110 PMAQI
28th Sep 20252011 PMAQI
29th Sep 20251312 AMAQI
29th Sep 2025121 AMAQI
29th Sep 2025122 AMAQI
29th Sep 2025123 AMAQI
29th Sep 2025114 AMAQI
29th Sep 2025125 AMAQI
29th Sep 2025186 AMAQI

20°C15/28°C

29th Sep 2025187 AMAQI
29th Sep 2025148 AMAQI
29th Sep 2025169 AMAQI
29th Sep 20251810 AMAQI
29th Sep 20251711 AMAQI
29th Sep 20251912 PMAQI
29th Sep 2025211 PMAQI
29th Sep 2025192 PMAQI
29th Sep 2025183 PMAQI
29th Sep 2025204 PMAQI
29th Sep 2025165 PMAQI
29th Sep 2025166 PMAQI
29th Sep 2025187 PMAQI
29th Sep 2025188 PMAQI
29th Sep 2025189 PMAQI
29th Sep 20252010 PMAQI
29th Sep 20252611 PMAQI
30th Sep 20252912 AMAQI
30th Sep 2025301 AMAQI
30th Sep 2025242 AMAQI
30th Sep 2025213 AMAQI
30th Sep 2025244 AMAQI
30th Sep 2025185 AMAQI
30th Sep 2025156 AMAQI

19°C11/28°C

30th Sep 2025177 AMAQI
30th Sep 2025148 AMAQI
30th Sep 2025149 AMAQI
30th Sep 20251910 AMAQI
30th Sep 20252211 AMAQI
30th Sep 20252612 PMAQI
30th Sep 2025281 PMAQI
30th Sep 2025232 PMAQI
30th Sep 2025243 PMAQI
30th Sep 2025204 PMAQI
30th Sep 2025185 PMAQI
30th Sep 2025186 PMAQI
30th Sep 2025187 PMAQI
30th Sep 2025188 PMAQI
30th Sep 2025229 PMAQI
30th Sep 20251910 PMAQI
30th Sep 20252211 PMAQI
1st Oct 20252812 AMAQI
1st Oct 2025281 AMAQI
1st Oct 2025262 AMAQI
1st Oct 2025213 AMAQI
1st Oct 2025144 AMAQI
1st Oct 2025225 AMAQI
1st Oct 2025266 AMAQI

21°C12/30°C

1st Oct 2025247 AMAQI
1st Oct 2025188 AMAQI
1st Oct 2025209 AMAQI
1st Oct 20252110 AMAQI
1st Oct 20252411 AMAQI
1st Oct 20252712 PMAQI
1st Oct 2025271 PMAQI
1st Oct 2025282 PMAQI
1st Oct 2025283 PMAQI
1st Oct 2025214 PMAQI
1st Oct 2025175 PMAQI
1st Oct 2025176 PMAQI
1st Oct 2025177 PMAQI
1st Oct 2025178 PMAQI
1st Oct 2025249 PMAQI
1st Oct 20252710 PMAQI
1st Oct 20252411 PMAQI
2nd Oct 20252212 AMAQI
2nd Oct 2025221 AMAQI
2nd Oct 2025302 AMAQI
2nd Oct 2025303 AMAQI
2nd Oct 2025244 AMAQI
2nd Oct 2025215 AMAQI
2nd Oct 2025186 AMAQI

20°C12/29°C

2nd Oct 2025177 AMAQI
2nd Oct 2025178 AMAQI
2nd Oct 2025249 AMAQI
2nd Oct 20254110 AMAQI
2nd Oct 20253911 AMAQI
2nd Oct 20252812 PMAQI
2nd Oct 2025281 PMAQI
2nd Oct 2025362 PMAQI
2nd Oct 2025343 PMAQI
2nd Oct 2025354 PMAQI
2nd Oct 2025195 PMAQI
2nd Oct 2025166 PMAQI
2nd Oct 2025217 PMAQI
2nd Oct 2025198 PMAQI
2nd Oct 2025299 PMAQI
2nd Oct 20252910 PMAQI
2nd Oct 20252411 PMAQI
3rd Oct 20252212 AMAQI
3rd Oct 2025231 AMAQI
3rd Oct 2025222 AMAQI
3rd Oct 2025233 AMAQI
3rd Oct 2025244 AMAQI
3rd Oct 2025195 AMAQI
3rd Oct 2025186 AMAQI

21°C12/32°C

3rd Oct 2025177 AMAQI
3rd Oct 2025188 AMAQI
3rd Oct 2025229 AMAQI
3rd Oct 20253210 AMAQI
3rd Oct 20253411 AMAQI
3rd Oct 20252912 PMAQI
3rd Oct 2025311 PMAQI
3rd Oct 2025292 PMAQI
3rd Oct 2025243 PMAQI
3rd Oct 2025214 PMAQI
3rd Oct 2025285 PMAQI
3rd Oct 2025276 PMAQI
3rd Oct 2025257 PMAQI
3rd Oct 2025268 PMAQI
3rd Oct 2025309 PMAQI
3rd Oct 20252510 PMAQI
3rd Oct 20252611 PMAQI
4th Oct 20252912 AMAQI
4th Oct 2025181 AMAQI
4th Oct 2025162 AMAQI
4th Oct 2025153 AMAQI
4th Oct 2025124 AMAQI
4th Oct 2025115 AMAQI
4th Oct 2025126 AMAQI

24°C17/33°C

4th Oct 2025157 AMAQI
4th Oct 2025188 AMAQI
4th Oct 2025379 AMAQI
4th Oct 20252010 AMAQI
4th Oct 20251411 AMAQI
4th Oct 20251812 PMAQI
4th Oct 2025201 PMAQI
4th Oct 2025192 PMAQI
4th Oct 2025213 PMAQI
4th Oct 2025224 PMAQI
4th Oct 2025265 PMAQI
4th Oct 2025246 PMAQI
4th Oct 2025377 PMAQI
4th Oct 2025298 PMAQI
4th Oct 2025269 PMAQI
4th Oct 20252610 PMAQI
4th Oct 20253211 PMAQI
5th Oct 20252612 AMAQI
5th Oct 2025461 AMAQI
5th Oct 2025362 AMAQI
5th Oct 2025203 AMAQI
5th Oct 2025294 AMAQI
5th Oct 2025285 AMAQI
5th Oct 2025226 AMAQI

18°C13/24°C

5th Oct 2025227 AMAQI
5th Oct 2025188 AMAQI
5th Oct 2025209 AMAQI
5th Oct 20252610 AMAQI
5th Oct 20252611 AMAQI
5th Oct 20252612 PMAQI
5th Oct 2025261 PMAQI
5th Oct 2025262 PMAQI
5th Oct 2025273 PMAQI
5th Oct 2025224 PMAQI
5th Oct 2025195 PMAQI
5th Oct 2025206 PMAQI
5th Oct 2025207 PMAQI
5th Oct 2025278 PMAQI
5th Oct 2025219 PMAQI
5th Oct 20252610 PMAQI
5th Oct 20251711 PMAQI
6th Oct 20251812 AMAQI
6th Oct 2025181 AMAQI
6th Oct 2025352 AMAQI
6th Oct 2025303 AMAQI
6th Oct 2025174 AMAQI
6th Oct 2025205 AMAQI
6th Oct 2025186 AMAQI

15°C6/24°C

6th Oct 2025187 AMAQI
6th Oct 2025198 AMAQI
6th Oct 2025219 AMAQI
6th Oct 20252210 AMAQI
6th Oct 20253211 AMAQI
7th Oct 2025205 AMAQI
7th Oct 2025206 AMAQI

15°C7/26°C

7th Oct 2025207 AMAQI
7th Oct 2025188 AMAQI
7th Oct 2025209 AMAQI
7th Oct 20252610 AMAQI
7th Oct 20252911 AMAQI
7th Oct 20252812 PMAQI
7th Oct 2025311 PMAQI
7th Oct 2025272 PMAQI
7th Oct 2025213 PMAQI
7th Oct 2025224 PMAQI
7th Oct 2025215 PMAQI
7th Oct 2025166 PMAQI
7th Oct 2025197 PMAQI
7th Oct 2025278 PMAQI
7th Oct 2025399 PMAQI
7th Oct 20253010 PMAQI
7th Oct 20255511 PMAQI
8th Oct 20254612 AMAQI
8th Oct 2025401 AMAQI
8th Oct 2025352 AMAQI
8th Oct 2025223 AMAQI
8th Oct 2025224 AMAQI
8th Oct 2025195 AMAQI
8th Oct 2025226 AMAQI

17°C7/27°C

8th Oct 2025227 AMAQI
8th Oct 2025238 AMAQI
8th Oct 2025249 AMAQI
8th Oct 20252610 AMAQI
8th Oct 20253711 AMAQI
8th Oct 20253612 PMAQI
8th Oct 2025321 PMAQI
8th Oct 2025282 PMAQI
8th Oct 2025283 PMAQI
8th Oct 2025284 PMAQI
8th Oct 2025315 PMAQI
8th Oct 2025316 PMAQI
8th Oct 2025287 PMAQI
8th Oct 2025288 PMAQI
8th Oct 2025399 PMAQI
8th Oct 20254610 PMAQI
8th Oct 20254711 PMAQI
9th Oct 20255312 AMAQI
9th Oct 2025521 AMAQI
9th Oct 2025422 AMAQI
9th Oct 2025363 AMAQI
9th Oct 2025244 AMAQI
9th Oct 2025225 AMAQI
9th Oct 2025206 AMAQI

18°C7/29°C

9th Oct 2025217 AMAQI
9th Oct 2025228 AMAQI
9th Oct 2025259 AMAQI
9th Oct 20253110 AMAQI
9th Oct 20254011 AMAQI
9th Oct 20253912 PMAQI
9th Oct 2025341 PMAQI
9th Oct 2025252 PMAQI
9th Oct 2025223 PMAQI
9th Oct 2025214 PMAQI
9th Oct 2025155 PMAQI
9th Oct 2025226 PMAQI
9th Oct 2025167 PMAQI
9th Oct 2025248 PMAQI
9th Oct 2025229 PMAQI
9th Oct 20252010 PMAQI
9th Oct 20252411 PMAQI
10th Oct 20254012 AMAQI
10th Oct 2025411 AMAQI
10th Oct 2025532 AMAQI
10th Oct 2025483 AMAQI
10th Oct 2025314 AMAQI
10th Oct 2025345 AMAQI
10th Oct 2025236 AMAQI

22°C14/30°C

10th Oct 2025167 AMAQI
10th Oct 2025318 AMAQI
10th Oct 2025179 AMAQI
10th Oct 20251210 AMAQI
10th Oct 20251511 AMAQI
10th Oct 20251612 PMAQI
10th Oct 2025141 PMAQI
10th Oct 2025142 PMAQI
10th Oct 2025163 PMAQI
10th Oct 2025174 PMAQI
10th Oct 2025145 PMAQI
10th Oct 2025136 PMAQI
10th Oct 2025167 PMAQI
10th Oct 2025168 PMAQI
10th Oct 2025179 PMAQI
10th Oct 20252310 PMAQI
10th Oct 20251811 PMAQI
11th Oct 20251212 AMAQI
11th Oct 2025121 AMAQI
11th Oct 2025152 AMAQI
11th Oct 2025143 AMAQI
11th Oct 2025154 AMAQI
11th Oct 2025305 AMAQI
11th Oct 2025366 AMAQI

17°C14/22°C

11th Oct 2025417 AMAQI
11th Oct 2025448 AMAQI
11th Oct 2025379 AMAQI
11th Oct 20253710 AMAQI
11th Oct 20252011 AMAQI
11th Oct 20251812 PMAQI
11th Oct 2025241 PMAQI
11th Oct 2025232 PMAQI
11th Oct 2025243 PMAQI
11th Oct 2025224 PMAQI
11th Oct 2025225 PMAQI
11th Oct 2025216 PMAQI
11th Oct 2025147 PMAQI
11th Oct 202578 PMAQI
11th Oct 2025139 PMAQI
11th Oct 20251310 PMAQI
11th Oct 20251411 PMAQI
12th Oct 20251212 AMAQI
12th Oct 2025101 AMAQI
12th Oct 2025142 AMAQI
12th Oct 2025223 AMAQI
12th Oct 2025214 AMAQI
12th Oct 2025205 AMAQI
12th Oct 2025216 AMAQI

16°C12/21°C

12th Oct 2025147 AMAQI
12th Oct 2025198 AMAQI
12th Oct 2025229 AMAQI
12th Oct 20252210 AMAQI
12th Oct 20252111 AMAQI
12th Oct 20252312 PMAQI
12th Oct 2025141 PMAQI
12th Oct 2025112 PMAQI
12th Oct 2025113 PMAQI
12th Oct 2025104 PMAQI
12th Oct 202575 PMAQI
12th Oct 202586 PMAQI
12th Oct 2025167 PMAQI
12th Oct 2025148 PMAQI
12th Oct 2025249 PMAQI
12th Oct 20253410 PMAQI
12th Oct 20252311 PMAQI
13th Oct 20251712 AMAQI
13th Oct 2025161 AMAQI
13th Oct 2025162 AMAQI
13th Oct 2025143 AMAQI
13th Oct 2025144 AMAQI
13th Oct 2025125 AMAQI
13th Oct 2025126 AMAQI

13°C8/18°C

13th Oct 2025137 AMAQI
13th Oct 2025128 AMAQI
13th Oct 2025159 AMAQI
13th Oct 20253410 AMAQI
13th Oct 20251811 AMAQI
13th Oct 20254612 PMAQI
13th Oct 2025241 PMAQI
13th Oct 2025132 PMAQI
13th Oct 2025163 PMAQI
13th Oct 2025194 PMAQI
13th Oct 2025215 PMAQI
13th Oct 2025316 PMAQI
13th Oct 2025177 PMAQI
13th Oct 2025128 PMAQI
13th Oct 2025119 PMAQI
13th Oct 20251210 PMAQI
13th Oct 20251311 PMAQI
14th Oct 20253012 AMAQI
14th Oct 2025381 AMAQI
14th Oct 2025312 AMAQI
14th Oct 2025213 AMAQI
14th Oct 2025344 AMAQI
14th Oct 2025345 AMAQI
14th Oct 2025276 AMAQI

11°C7/18°C

14th Oct 2025247 AMAQI
14th Oct 2025248 AMAQI
14th Oct 2025239 AMAQI
14th Oct 20251410 AMAQI
14th Oct 20251811 AMAQI
14th Oct 20252112 PMAQI
14th Oct 2025201 PMAQI
14th Oct 2025232 PMAQI
14th Oct 2025103 PMAQI
14th Oct 2025104 PMAQI
14th Oct 2025155 PMAQI
14th Oct 2025166 PMAQI
14th Oct 2025177 PMAQI
14th Oct 2025148 PMAQI
14th Oct 2025209 PMAQI
14th Oct 20252310 PMAQI
14th Oct 20251611 PMAQI
15th Oct 20251412 AMAQI
15th Oct 2025131 AMAQI
15th Oct 2025142 AMAQI
15th Oct 2025143 AMAQI
15th Oct 2025134 AMAQI
15th Oct 2025135 AMAQI
15th Oct 2025116 AMAQI

17°C12/26°C

15th Oct 2025127 AMAQI
15th Oct 2025238 AMAQI
15th Oct 2025159 AMAQI
15th Oct 20253710 AMAQI
15th Oct 20253611 AMAQI
15th Oct 20253512 PMAQI
15th Oct 2025311 PMAQI
15th Oct 2025192 PMAQI
15th Oct 2025203 PMAQI
15th Oct 2025144 PMAQI
15th Oct 2025185 PMAQI
15th Oct 2025356 PMAQI
15th Oct 2025217 PMAQI
15th Oct 2025158 PMAQI
15th Oct 2025139 PMAQI
15th Oct 20252810 PMAQI
15th Oct 20252511 PMAQI
16th Oct 20254012 AMAQI
16th Oct 2025361 AMAQI
16th Oct 2025262 AMAQI
16th Oct 2025223 AMAQI
16th Oct 2025304 AMAQI
16th Oct 2025165 AMAQI
16th Oct 2025126 AMAQI

17°C10/26°C

16th Oct 2025127 AMAQI
16th Oct 2025208 AMAQI
16th Oct 2025179 AMAQI
16th Oct 20251610 AMAQI
16th Oct 20252511 AMAQI
16th Oct 20251912 PMAQI
16th Oct 2025171 PMAQI
16th Oct 202592 PMAQI
16th Oct 2025103 PMAQI
16th Oct 202594 PMAQI
16th Oct 2025165 PMAQI
16th Oct 2025136 PMAQI
16th Oct 2025207 PMAQI
16th Oct 2025178 PMAQI
16th Oct 2025199 PMAQI
16th Oct 20251310 PMAQI
16th Oct 20251811 PMAQI
17th Oct 20251712 AMAQI
17th Oct 2025121 AMAQI
17th Oct 2025152 AMAQI
17th Oct 2025213 AMAQI
17th Oct 2025354 AMAQI
17th Oct 2025335 AMAQI
17th Oct 2025196 AMAQI

11°C6/18°C

17th Oct 2025137 AMAQI
17th Oct 2025148 AMAQI
17th Oct 2025179 AMAQI
17th Oct 20252110 AMAQI
17th Oct 20252411 AMAQI
17th Oct 20252412 PMAQI
17th Oct 2025201 PMAQI
17th Oct 2025202 PMAQI
17th Oct 2025183 PMAQI
17th Oct 2025144 PMAQI
17th Oct 2025125 PMAQI
17th Oct 2025146 PMAQI
17th Oct 2025137 PMAQI
17th Oct 2025188 PMAQI
17th Oct 2025169 PMAQI
17th Oct 20251710 PMAQI
17th Oct 20251611 PMAQI
18th Oct 20251612 AMAQI
18th Oct 2025241 AMAQI
18th Oct 2025422 AMAQI
18th Oct 2025443 AMAQI
18th Oct 2025404 AMAQI
18th Oct 2025185 AMAQI
18th Oct 2025246 AMAQI

10°C3/18°C

18th Oct 2025257 AMAQI
18th Oct 2025168 AMAQI
18th Oct 2025239 AMAQI
18th Oct 20253510 AMAQI
18th Oct 20252711 AMAQI
18th Oct 20254012 PMAQI
18th Oct 2025361 PMAQI
18th Oct 2025142 PMAQI
18th Oct 2025123 PMAQI
18th Oct 2025124 PMAQI
18th Oct 2025155 PMAQI
18th Oct 2025186 PMAQI
18th Oct 2025217 PMAQI
18th Oct 2025188 PMAQI
18th Oct 2025179 PMAQI
18th Oct 20254010 PMAQI
18th Oct 20253811 PMAQI
19th Oct 20255112 AMAQI
19th Oct 2025581 AMAQI
19th Oct 2025532 AMAQI
19th Oct 2025483 AMAQI
19th Oct 2025344 AMAQI
19th Oct 2025495 AMAQI
19th Oct 2025546 AMAQI

11°C3/20°C

19th Oct 2025227 AMAQI
19th Oct 2025158 AMAQI
19th Oct 2025169 AMAQI
19th Oct 20252010 AMAQI
19th Oct 20252311 AMAQI
19th Oct 20252212 PMAQI
19th Oct 2025181 PMAQI
19th Oct 2025162 PMAQI
19th Oct 2025173 PMAQI
19th Oct 2025234 PMAQI
19th Oct 2025225 PMAQI
19th Oct 2025156 PMAQI
19th Oct 2025157 PMAQI
19th Oct 2025148 PMAQI
19th Oct 2025229 PMAQI
19th Oct 20252110 PMAQI
19th Oct 20251811 PMAQI
20th Oct 20251612 AMAQI
20th Oct 2025161 AMAQI
20th Oct 2025182 AMAQI
20th Oct 2025223 AMAQI
20th Oct 2025224 AMAQI
20th Oct 2025225 AMAQI
20th Oct 2025226 AMAQI

13°C4/24°C

20th Oct 2025237 AMAQI
20th Oct 2025188 AMAQI
20th Oct 2025339 AMAQI
20th Oct 20255910 AMAQI
20th Oct 20254611 AMAQI
20th Oct 20253412 PMAQI
20th Oct 2025341 PMAQI
20th Oct 2025262 PMAQI
20th Oct 2025143 PMAQI
20th Oct 2025304 PMAQI
20th Oct 2025245 PMAQI
20th Oct 2025266 PMAQI
20th Oct 2025217 PMAQI
20th Oct 2025228 PMAQI
20th Oct 2025169 PMAQI
20th Oct 20251610 PMAQI
20th Oct 20251511 PMAQI
21st Oct 20251612 AMAQI
21st Oct 2025191 AMAQI
21st Oct 2025202 AMAQI
21st Oct 2025253 AMAQI
21st Oct 2025244 AMAQI
21st Oct 2025165 AMAQI
21st Oct 2025176 AMAQI

14°C8/22°C

21st Oct 2025167 AMAQI
21st Oct 2025178 AMAQI
21st Oct 2025179 AMAQI
21st Oct 20252010 AMAQI
21st Oct 20252511 AMAQI
21st Oct 20252912 PMAQI
21st Oct 2025241 PMAQI
21st Oct 2025222 PMAQI
21st Oct 2025243 PMAQI
21st Oct 2025234 PMAQI
21st Oct 2025265 PMAQI
21st Oct 2025236 PMAQI
21st Oct 2025307 PMAQI
21st Oct 2025288 PMAQI
21st Oct 2025299 PMAQI
21st Oct 20253110 PMAQI
21st Oct 20252811 PMAQI
22nd Oct 20252512 AMAQI
22nd Oct 2025281 AMAQI
22nd Oct 2025332 AMAQI
22nd Oct 2025293 AMAQI
22nd Oct 2025194 AMAQI
22nd Oct 2025215 AMAQI
22nd Oct 2025206 AMAQI

13°C4/22°C

22nd Oct 2025187 AMAQI
7 AM
22nd Oct 2025188 AMAQI
22nd Oct 2025199 AMAQI
22nd Oct 20252710 AMAQI
22nd Oct 20253711 AMAQI
22nd Oct 20253512 PMAQI
12 PM
22nd Oct 2025261 PMAQI
22nd Oct 2025332 PMAQI
22nd Oct 2025343 PMAQI
22nd Oct 2025344 PMAQI
22nd Oct 2025345 PMAQI
22nd Oct 2025356 PMAQI
6 PM
22nd Oct 2025287 PMAQI
22nd Oct 2025228 PMAQI
12 AM
6 AM

12°C4/22°C

Day time
Avg. Highest Time
10 AM - 12 PM

25AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
7 AM - 8 AM

18AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 12 PM (Avg. 25), while the lowest AQI was between 7 AM to 8 AM (Avg. 18).
Night time
Avg. Highest Time
1 AM - 2 AM

26AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
7 PM - 8 PM

19AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 2 AM (Avg. 26), while the lowest AQI was between 7 PM to 8 PM (Avg. 19).

2025 Days Vs Air Quality

Grand Junction, Colorado, United States

2025

98%

289

2%

6

Total number of days with different AQI categories in last 296 days in 2025 (69 days remaining)

Good
289 Days
Moderate
6 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days



Under WHO’s Safe Air Quality Limits: 98%

Health Risk Level:

Very Low

In 2025, 98% of 296 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

Grand Junction, Colorado, 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.

-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
34AQI
2nd January 2025
44AQI
3rd January 2025
41AQI
4th January 2025
33AQI
5th January 2025
24AQI
6th January 2025
27AQI
7th January 2025
30AQI
8th January 2025
26AQI
9th January 2025
25AQI
10th January 2025
24AQI
11th January 2025
25AQI
12th January 2025
24AQI
13th January 2025
23AQI
14th January 2025
28AQI
15th January 2025
30AQI
16th January 2025
36AQI
17th January 2025
46AQI
18th January 2025
27AQI
19th January 2025
21AQI
20th January 2025
24AQI
21st January 2025
25AQI
22nd January 2025
34AQI
23rd January 2025
25AQI
24th January 2025
26AQI
25th January 2025
27AQI
26th January 2025
36AQI
27th January 2025
48AQI
28th January 2025
49AQI
29th January 2025
45AQI
30th January 2025
45AQI
31st January 2025
34AQI
1st February 2025
38AQI
2nd February 2025
33AQI
3rd February 2025
43AQI
4th February 2025
33AQI
5th February 2025
27AQI
6th February 2025
30AQI
7th February 2025
27AQI
8th February 2025
21AQI
9th February 2025
23AQI
10th February 2025
36AQI
11th February 2025
42AQI
12th February 2025
24AQI
13th February 2025
16AQI
14th February 2025
12AQI
15th February 2025
13AQI
16th February 2025
16AQI
17th February 2025
17AQI
18th February 2025
13AQI
19th February 2025
12AQI
20th February 2025
13AQI
21st February 2025
14AQI
22nd February 2025
16AQI
23rd February 2025
16AQI
24th February 2025
17AQI
25th February 2025
14AQI
26th February 2025
14AQI
27th February 2025
11AQI
28th February 2025
16AQI
1st March 2025
20AQI
2nd March 2025
24AQI
3rd March 2025
16AQI
4th March 2025
14AQI
5th March 2025
13AQI
6th March 2025
10AQI
7th March 2025
10AQI
8th March 2025
12AQI
9th March 2025
14AQI
10th March 2025
16AQI
11th March 2025
22AQI
12th March 2025
19AQI
13th March 2025
16AQI
14th March 2025
23AQI
15th March 2025
17AQI
16th March 2025
21AQI
17th March 2025
22AQI
18th March 2025
20AQI
19th March 2025
23AQI
20th March 2025
19AQI
21st March 2025
18AQI
22nd March 2025
17AQI
23rd March 2025
23AQI
24th March 2025
22AQI
25th March 2025
21AQI
26th March 2025
24AQI
27th March 2025
21AQI
28th March 2025
30AQI
29th March 2025
29AQI
30th March 2025
30AQI
31st March 2025
35AQI
1st April 2025
20AQI
2nd April 2025
21AQI
3rd April 2025
17AQI
4th April 2025
20AQI
5th April 2025
14AQI
6th April 2025
17AQI
7th April 2025
20AQI
8th April 2025
27AQI
9th April 2025
34AQI
10th April 2025
50AQI
11th April 2025
45AQI
12th April 2025
36AQI
13th April 2025
27AQI
14th April 2025
26AQI
15th April 2025
27AQI
16th April 2025
24AQI
17th April 2025
31AQI
18th April 2025
18AQI
19th April 2025
15AQI
20th April 2025
19AQI
21st April 2025
19AQI
22nd April 2025
19AQI
23rd April 2025
24AQI
24th April 2025
27AQI
25th April 2025
22AQI
26th April 2025
18AQI
27th April 2025
27AQI
28th April 2025
14AQI
29th April 2025
15AQI
30th April 2025
17AQI
1st May 2025
16AQI
2nd May 2025
18AQI
3rd May 2025
20AQI
4th May 2025
24AQI
5th May 2025
16AQI
6th May 2025
17AQI
7th May 2025
15AQI
8th May 2025
18AQI
9th May 2025
18AQI
10th May 2025
17AQI
11th May 2025
18AQI
12th May 2025
24AQI
13th May 2025
35AQI
14th May 2025
30AQI
15th May 2025
17AQI
16th May 2025
17AQI
17th May 2025
15AQI
18th May 2025
17AQI
19th May 2025
17AQI
20th May 2025
17AQI
21st May 2025
18AQI
22nd May 2025
21AQI
23rd May 2025
27AQI
24th May 2025
21AQI
25th May 2025
23AQI
26th May 2025
19AQI
27th May 2025
19AQI
28th May 2025
23AQI
29th May 2025
23AQI
30th May 2025
21AQI
31st May 2025
28AQI
1st June 2025
26AQI
2nd June 2025
25AQI
3rd June 2025
19AQI
4th June 2025
29AQI
5th June 2025
20AQI
6th June 2025
23AQI
7th June 2025
25AQI
8th June 2025
24AQI
9th June 2025
27AQI
10th June 2025
25AQI
11th June 2025
23AQI
12th June 2025
25AQI
13th June 2025
25AQI
14th June 2025
26AQI
15th June 2025
23AQI
16th June 2025
24AQI
17th June 2025
26AQI
18th June 2025
26AQI
19th June 2025
27AQI
20th June 2025
32AQI
21st June 2025
37AQI
22nd June 2025
37AQI
23rd June 2025
43AQI
24th June 2025
37AQI
25th June 2025
37AQI
26th June 2025
34AQI
27th June 2025
43AQI
28th June 2025
35AQI
29th June 2025
37AQI
30th June 2025
29AQI
1st July 2025
34AQI
2nd July 2025
29AQI
3rd July 2025
29AQI
4th July 2025
35AQI
5th July 2025
39AQI
6th July 2025
30AQI
7th July 2025
29AQI
8th July 2025
28AQI
9th July 2025
29AQI
10th July 2025
32AQI
11th July 2025
37AQI
12th July 2025
33AQI
13th July 2025
33AQI
14th July 2025
32AQI
15th July 2025
47AQI
16th July 2025
56AQI
17th July 2025
58AQI
18th July 2025
52AQI
19th July 2025
39AQI
20th July 2025
34AQI
21st July 2025
38AQI
22nd July 2025
27AQI
23rd July 2025
25AQI
24th July 2025
46AQI
25th July 2025
52AQI
26th July 2025
49AQI
27th July 2025
38AQI
28th July 2025
31AQI
29th July 2025
41AQI
30th July 2025
36AQI
31st July 2025
43AQI
1st August 2025
30AQI
2nd August 2025
27AQI
3rd August 2025
27AQI
4th August 2025
39AQI
5th August 2025
48AQI
6th August 2025
49AQI
7th August 2025
47AQI
8th August 2025
43AQI
9th August 2025
43AQI
10th August 2025
27AQI
11th August 2025
40AQI
12th August 2025
50AQI
13th August 2025
56AQI
14th August 2025
55AQI
15th August 2025
46AQI
16th August 2025
41AQI
17th August 2025
26AQI
18th August 2025
26AQI
19th August 2025
25AQI
20th August 2025
30AQI
21st August 2025
36AQI
22nd August 2025
35AQI
23rd August 2025
34AQI
24th August 2025
27AQI
25th August 2025
32AQI
26th August 2025
31AQI
27th August 2025
30AQI
28th August 2025
30AQI
29th August 2025
40AQI
30th August 2025
43AQI
31st August 2025
45AQI
1st September 2025
37AQI
2nd September 2025
39AQI
3rd September 2025
44AQI
4th September 2025
49AQI
5th September 2025
48AQI
6th September 2025
49AQI
7th September 2025
36AQI
8th September 2025
27AQI
9th September 2025
26AQI
10th September 2025
23AQI
11th September 2025
21AQI
12th September 2025
20AQI
13th September 2025
18AQI
14th September 2025
19AQI
15th September 2025
25AQI
16th September 2025
24AQI
17th September 2025
23AQI
18th September 2025
24AQI
19th September 2025
26AQI
20th September 2025
27AQI
21st September 2025
18AQI
22nd September 2025
20AQI
23rd September 2025
18AQI
24th September 2025
17AQI
25th September 2025
19AQI
26th September 2025
17AQI
27th September 2025
19AQI
28th September 2025
15AQI
29th September 2025
16AQI
30th September 2025
21AQI
1st October 2025
22AQI
2nd October 2025
26AQI
3rd October 2025
25AQI
4th October 2025
22AQI
5th October 2025
27AQI
6th October 2025
24AQI
7th October 2025
26AQI
8th October 2025
32AQI
9th October 2025
29AQI
10th October 2025
25AQI
11th October 2025
20AQI
12th October 2025
17AQI
13th October 2025
18AQI
14th October 2025
23AQI
15th October 2025
20AQI
16th October 2025
21AQI
17th October 2025
19AQI
18th October 2025
27AQI
19th October 2025
29AQI
20th October 2025
24AQI
21st October 2025
23AQI
22nd October 2025
26AQI
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025

32AQI

22AQI

20AQI

24AQI

20AQI

29AQI

37AQI

37AQI

26AQI

24AQI


No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202527AQI

31
28
31
30
31
30
27
4
29
2
30
22
289
6

Highest AQI recorded in

July

37AQI


Lowest AQI recorded in

March

20AQI


202421AQI

31
29
31
30
28
29
29
2
31
30
28
3
30
29
2
355
7

Highest AQI recorded in

December

40AQI


Lowest AQI recorded in

May

14AQI


202319AQI

31
27
1
31
29
1
30
30
31
31
30
31
28
31
360
2

Highest AQI recorded in

November

26AQI


Lowest AQI recorded in

June

14AQI


202223AQI

25
4
1
21
1
31
17
31
30
21
3
27
2
31
30
30
1
297
8
1

Highest AQI recorded in

January

40AQI


Lowest AQI recorded in

July

13AQI


202126AQI

23
7
28
31
30
28
26
1
29
2
19
10
2
28
2
31
30
30
1
333
23
2

Highest AQI recorded in

August

43AQI


Lowest AQI recorded in

May

15AQI


202025AQI

13
20
19
30
31
22
8
1
25
5
26
5
28
1
29
2
243
21
1

Highest AQI recorded in

August

41AQI


Lowest AQI recorded in

March

12AQI


Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2025(Avg.)
27AQI
Least Polluted Year Recorded
2023(Avg.)
19AQI


Grand Junction's annual 2025 AQI (27) shows an average percentage change of 21.4% (worsened AQI) compared to previous years: 2020 (25), 2021 (26), 2022 (23), 2023 (19), 2024 (21).