From North to South From East to West From South to North From West to East From North to South From East to West From South to North From West to East
Colorado
Translate
Banner with Colorado and CDPHE logos on left with text on right reading Colorado Air Quality with Department of Public Health and Environment on the next line.

Particulate < 2.5 micrometers (PM2.5)

All data are collected real-time and have not been corrected nor validated.

Hourly averages in µg/m3 for 07/10/2025

Rollover the column headings to select the direction to sort from. Click on column or row headings to highlight corresponding data.

*Hour
(MST)
   ACC ADB ALA ASPN2 BOU CAMP CAN CASA CCOL CHAT DELT FTCF GJPB GREH I25DEN I25GLO LMB LNGM NJH PAG PFS PMS **RIFL SSMB TEL TIM WBY
1:00 AM 1hr
24hr
AQI		 3
2
14		 7
6
37		 6
5
30		 3
3
21		 4
4
24		 5
3
22		 4
3
22		 6
4
27



4
3
20		 3
4
23

4
4
25		 5
4
24		 9
6
34		 6
5
30		 4
5
29		 7
4
26		 3
3
21		 5
4
26		 12
9
52		 5
1
10		 2
3
20		 4
3
20		 3
4
24		 8
5
32
2:00 AM 1hr
24hr
AQI		 2
2
14		 4
6
36		 8
5
31		 3
3
21		 3
4
24		 3
3
21		 5
3
22		 5
4
27



4
3
20		 2
4
22

3
4
24		 3
4
24		 8
6
34		 6
5
30		 3
5
29		 6
4
26		 3
3
21		 5
4
26		 5
9
51		 3
1
10		 3
3
20		 4
3
20		 3
4
23		 4
5
31
3:00 AM 1hr
24hr
AQI		 2
2
14		 4
6
36		 12
5
32		 3
3
21		 2
4
23		 3
3
21		 4
3
22		 4
4
27



4
3
20		 2
3
21

2
4
23		 2
4
23		 14
6
36		 6
5
30		 3
5
28		 5
4
26		 3
3
21		 5
4
27		 4
9
51		 0
1
9		 3
3
20		 4
3
20		 3
4
23		 3
5
30
4:00 AM 1hr
24hr
AQI		 2
2
14		 4
6
34		 10
6
33		 3
3
21		 3
4
23		 2
3
21		 4
3
21		 3
4
26



4
3
20		 2
3
20

2
4
22		 3
4
23		 4
6
34		 6
5
31		 3
5
28		 4
4
26		 3
3
21		 5
4
27		 4
9
50		 2
1
9		 3
3
19		 4
3
20		 3
4
23		 3
5
29
5:00 AM 1hr
24hr
AQI		 3
2
14		 5
6
33		 8
6
34		 3
3
21		 3
4
23		 4
3
21		 4
3
21		 4
4
26



4
3
20		 2
3
19

2
3
21		 3
3
22		 7
6
33		 6
5
31		 3
4
27		 5
4
26		 3
3
21		 6
4
27		 6
8
48		 2
1
9		 3
3
19		 5
3
21
4
22		 4
5
29
6:00 AM 1hr
24hr
AQI		 4
2
14		 8
5
32		 8
6
34		 3
3
20		 4
4
22		 3
3
20		 4
3
21		 4
4
25



5
3
20		 2
3
18

3
3
20		 4
3
21		 7
5
32		 6
5
31		 6
4
27		 4
4
26		 4
3
21		 7
4
27		 6
8
47		 3
1
9		 3
3
19		 5
3
21		 3
3
22		 6
5
28
7:00 AM 1hr
24hr
AQI		 3
2
14		 9
5
31		 7
6
34		 3
3
19		 4
3
22		 5
3
20		 5
3
22		 4
4
24



5
3
21		 3
3
17

6
3
19		 6
3
21		 8
5
31		 7
5
31		 7
4
27		 6
4
26		 4
3
21		 7
4
27		 8
8
46		 5
1
9		 4
3
19		 4
3
21		 3
3
21		 7
4
27
8:00 AM 1hr
24hr
AQI		 4
2
13		 10
5
32		 8
6
35		 2
3
19		 4
3
21		 5
3
19		 5
3
22		 5
4
24

4

 5
3
21		 2
2
16

5
3
19		 4
3
20		 9
5
31		 8
5
32		 6
4
26		 6
4
26		 5
3
21		 9
5
28
7
44		 5
1
10		 4
3
18		 5
3
21		 3
3
20		 8
4
27
9:00 AM 1hr
24hr
AQI		 4
2
13		 8
5
32		 8
6
36		 3
3
19		 4
3
20		 5
3
19		 3
3
21		 4
4
23

3

 4
3
21		 3
2
16

3
3
19		 5
3
20		 6
5
31		 7
5
32		 5
4
26		 6
4
27		 5
3
20		 10
5
28
7
42		 4
2
11		 4
3
18		 6
3
21		 3
3
19		 5
4
26
10:00 AM 1hr
24hr
AQI		 2
2
13		 5
5
31		 8
6
36		 3
3
19		 4
3
19		 4
3
19		 3
3
21		 4
4
23

3

 3
3
21		 5
2
16

3
3
18		 4
3
20		 4
5
31		 7
5
32		 5
4
26		 5
4
27		 6
3
20		 8
5
28		 6
7
40		 1
2
11		 5
3
18		 6
3
22		 4
3
19		 4
4
26
11:00 AM 1hr
24hr
AQI		 2
2
13		 6
5
31		 6
6
36		 4
3
19		 5
3
19		 4
3
19		 3
3
21		 5
4
23

4

 5
3
21		 7
2
16

7
3
18		 4
3
20		 6
5
31		 7
5
32		 4
4
25		 4
4
27		 5
3
21		 5
5
28		 6
7
39		 -
2
11		 9
3
19		 6
4
22		 9
3
21		 4
4
26
12:00 PM 1hr
24hr
AQI		 3
2
14		 6
5
32		 7
6
36		 10
3
21		 6
3
20		 5
3
20		 5
3
21		 7
4
24

4

 18
4
24		 7
3
17

7
3
19		 6
3
21		 7
5
32		 5
5
32		 7
4
26		 6
4
27		 4
3
21		 3
5
28		 11
7
40		 1
2
12		 6
3
19		 6
4
23		 10
4
22		 5
4
26
1:00 PM 1hr
24hr
AQI		 4
2
14		 10
6
33		 5
6
37		 20
4
24		 22
4
24		 5
3
21		 4
3
21		 8
4
24

6

 26
5
29		 8
3
18

10
3
21		 5
3
21		 7
5
32		 5
5
32		 34
5
33		 11
5
29		 3
3
21		 3
5
28		 23
8
44		 3
2
12		 4
3
20		 6
4
24		 13
4
24		 9
4
27
2:00 PM 1hr
24hr
AQI		 10
2
16		 34
7
40		 6
6
37		 25
5
29		 30
5
31		 15
4
24		 4
3
22		 19
5
28

11

 29
6
35		 5
3
18

9
4
22		 13
4
23		 19
6
36		 4
5
32		 39
7
41		 18
5
32		 3
3
21		 4
5
28		 20
8
48		 5
2
13		 5
3
20		 6
4
24		 9
4
26		 23
5
32
3:00 PM 1hr
24hr
AQI		 9
3
18		 17
7
43		 3
6
37		 31
6
36		 21
6
35		 12
4
26		 5
3
22		 17
5
31

15

 34
7
42		 3
3
18

8
4
24		 11
4
26		 13
6
38		 4
5
32		 37
8
49		 20
6
36		 3
3
21		 5
5
28		 37
10
53		 6
2
14		 4
3
20		 9
4
26		 6
4
26		 16
6
34
4:00 PM 1hr
24hr
AQI		 7
3
19		 24
8
47		 3
6
37		 32
7
42		 23
7
39		 10
5
28		 6
4
22		 17
6
34

9

 33
8
49		 4
3
18

13
4
26		 10
4
27		 11
7
41		 4
5
32		 27
9
52		 19
7
39		 3
3
21		 6
5
29		 41
11
56		 5
2
14		 4
3
21		 8
4
27		 12
5
28		 21
6
38
5:00 PM 1hr
24hr
AQI		 5
3
20		 20
9
51		 3
6
37		 21
8
46		 21
7
43		 8
5
29		 9
4
24		 14
6
37

9

 10
9
51		 7
3
20

19
5
31		 7
5
28		 8
7
42		 10
6
33		 25
10
54		 16
7
42		 3
3
21		 10
5
31		 23
12
58		 3
2
15		 4
3
21		 16
5
30		 9
5
29		 17
7
41
6:00 PM 1hr
24hr
AQI		 6
3
21		 16
9
52		 3
6
37		 12
8
48		 19
8
47		 9
5
31		 9
4
24		 12
7
39

11

 11
9
52		 3
3
20

13
5
33		 9
5
30		 8
7
43		 3
5
33		 11
11
55		 13
8
44		 4
3
21		 7
5
31		 7
12
58		 3
2
16		 5
3
21		 25
6
34		 5
5
29		 11
7
43
7:00 PM 1hr
24hr
AQI		 4
3
22		 6
9
52		 3
6
36		 9
8
49		 7
8
47		 6
5
31		 7
4
26		 6
7
39

8

 11
9
52		 5
3
20

12
6
35		 5
5
30		 5
7
44		 3
5
32		 6
10
54		 6
8
45		 4
3
21		 7
5
32		 7
12
57		 1
2
16		 6
3
21		 53
8
46		 6
5
30		 5
7
43
8:00 PM 1hr
24hr
AQI		 3
3
22		 5
9
52		 6
6
36		 9
9
50		 7
8
48		 5
5
31		 6
4
26		 5
7
39

5

 8
9
52		 5
3
21

13
6
36		 4
5
30		 5
7
44		 3
5
31		 6
10
54		 5
8
45		 4
3
21		 8
5
33		 6
12
57		 3
3
17		 4
3
21		 59
10
54		 6
5
30		 5
7
43
9:00 PM 1hr
24hr
AQI		 4
4
22		 6
9
52		 8
6
36		 10
9
51		 7
8
48		 5
5
31		 7
4
26		 6
7
39

5

 14
10
53		 5
3
21

13
6
38		 5
5
30		 6
7
44		 3
5
31		 6
10
54		 5
8
44		 6
3
21		 10
6
34		 6
11
56		 7
3
18		 4
3
21		 69
13
59		 6
5
31		 5
7
43
10:00 PM 1hr
24hr
AQI		 5
4
22		 7
9
52		 6
6
36		 11
9
52		 7
8
49		 6
5
31		 8
4
27		 7
7
39

5

 25
11
55		 5
3
21

13
7
41		 6
5
30		 8
7
44		 3
5
30		 7
11
55		 7
8
45		 6
3
22		 13
6
36		 8
11
56		 6
3
19		 5
3
22		 68
15
64		 6
5
31		 6
7
43
11:00 PM 1hr
24hr
AQI		 9
4
24		 12
9
52		 6
6
35		 11
9
52		 6
8
49		 6
5
31		 8
5
28		 6
7
40

6

 15
11
56		 6
4
22

15
7
43		 6
5
30		 8
7
44		 3
5
29		 6
11
55		 8
8
45		 7
4
22		 11
6
37		 9
11
56		 4
3
19		 4
4
22		 65
18
68		 6
5
32		 7
7
44
12:00 AM 1hr
24hr
AQI		 5
4
24		 10
10
53		 6
6
35		 9
10
53		 6
9
50		 7
5
32		 9
5
29		 6
7
40

5

 11
12
56		 7
4
23

14
8
45		 7
5
31		 11
8
45		 3
5
28		 6
11
55		 6
8
45		 8
4
23		 8
6
38		 10
12
56		 0
3
18		 4
4
22		 64
20
73		 6
5
32		 8
7
44
Max Value 1hr
24hr
AQI		 10
4
24		 34
10
53		 12
6
37		 32
10
53		 30
9
50		 15
5
32		 9
5
29		 19
7
40		  
 
 		 15
 
 		 34
12
56		 8
4
23		  
 
 		 19
8
45		 13
5
31		 19
8
45		 10
6
33		 39
11
55		 20
8
45		 8
4
23		 13
6
38		 41
12
58		 7
3
19		 9
4
22		 69
20
73		 13
5
32		 23
7
44
*Hour
(MST)
   ACC ADB ALA ASPN2 BOU CAMP CAN CASA CCOL CHAT DELT FTCF GJPB GREH I25DEN I25GLO LMB LNGM NJH PAG PFS PMS **RIFL SSMB TEL TIM WBY

Key: [blank] [ - ] (diagnostic) [Yellow] [Orange]
  no data available/reported reported data below zero highest value for the hour highest value for the day

* All data are reported in Mountain Standard Time (MST). During daylight savings time add one hour to the reported hour.

** RIFL - These data are provided courtesy of the county of Garfield

AQI health statements
Site information and abbreviations