Red Feather Lakes, Estes Park, Colorado, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Red Feather Lakes, Estes Park, Colorado, United States
AQI Trends: Highest and Lowest
Same Day Analysis (25th October ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 37 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 25th Oct - 26th Oct 2025
Red Feather Lakes, Estes Park, Colorado, United States
7 AM25th Oct 2025
6 PM
6 AM26th Oct 2025
46AQI
19AQI
63AQI
18AQI
In the last 24 hours,
Red Feather Lakes's AQI reached its highest point of 63 at 12 AM during the Night, while the lowest point, 18, was recorded at 7 PM during the Night between 25th Oct and 26th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Red Feather Lakes, Estes Park, Colorado, United States
14°C9/20°C
13°C9/17°C
13°C10/18°C
11°C8/15°C
12°C7/18°C
13°C8/17°C
14°C10/20°C
16°C10/21°C
11°C5/15°C
5°C2/10°C
3°C2/4°C
6°C2/10°C
11°C5/18°C
14°C9/19°C
11°C10/14°C
11°C9/14°C
7°C3/8°C
3°C1/7°C
9°C4/15°C
11°C9/16°C
7°C3/11°C
4°C1/9°C
4°C3/8°C
9°C2/15°C
3°C-1/5°C
6°C-1/13°C
8°C3/14°C
6°C4/10°C
7°C4/11°C
8°C2/14°C
--°C/°C
33AQI
25AQI
37AQI
26AQI
2025 Days Vs Air Quality
Red Feather Lakes, Estes Park, Colorado, United States
97%
289
3%
9
Total number of days with different AQI categories in last 299 days in 2025 (66 days remaining)
Under WHO’s Safe Air Quality Limits: 97%
Health Risk Level:
Very Low
In 2025, 97% of 299 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
Red Feather Lakes, Estes Park, Colorado, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
28AQI
29AQI
25AQI
23AQI
21AQI
20AQI
25AQI
25AQI
21AQI
26AQI
26AQI
22AQI
30AQI
28AQI
24AQI
23AQI
23AQI
21AQI
21AQI
23AQI
23AQI
22AQI
22AQI
22AQI
20AQI
22AQI
25AQI
26AQI
27AQI
27AQI
26AQI
24AQI
21AQI
28AQI
30AQI
27AQI
25AQI
24AQI
23AQI
23AQI
22AQI
25AQI
24AQI
21AQI
20AQI
18AQI
17AQI
16AQI
19AQI
19AQI
21AQI
19AQI
19AQI
16AQI
15AQI
18AQI
17AQI
18AQI
19AQI
20AQI
21AQI
19AQI
21AQI
16AQI
14AQI
17AQI
16AQI
15AQI
20AQI
19AQI
15AQI
19AQI
27AQI
19AQI
17AQI
26AQI
17AQI
17AQI
17AQI
16AQI
16AQI
14AQI
16AQI
22AQI
26AQI
26AQI
36AQI
28AQI
25AQI
27AQI
19AQI
17AQI
17AQI
16AQI
13AQI
14AQI
19AQI
19AQI
30AQI
29AQI
31AQI
22AQI
21AQI
19AQI
20AQI
21AQI
20AQI
15AQI
15AQI
14AQI
15AQI
16AQI
17AQI
16AQI
15AQI
16AQI
17AQI
15AQI
14AQI
14AQI
14AQI
17AQI
17AQI
18AQI
15AQI
18AQI
16AQI
18AQI
17AQI
19AQI
18AQI
20AQI
23AQI
20AQI
14AQI
14AQI
14AQI
15AQI
13AQI
14AQI
14AQI
17AQI
17AQI
17AQI
15AQI
17AQI
19AQI
18AQI
17AQI
22AQI
19AQI
20AQI
18AQI
16AQI
18AQI
18AQI
18AQI
20AQI
25AQI
28AQI
28AQI
22AQI
20AQI
23AQI
28AQI
23AQI
22AQI
20AQI
21AQI
22AQI
27AQI
35AQI
35AQI
22AQI
23AQI
22AQI
21AQI
27AQI
29AQI
23AQI
21AQI
24AQI
22AQI
22AQI
21AQI
25AQI
22AQI
19AQI
20AQI
22AQI
25AQI
36AQI
35AQI
26AQI
23AQI
29AQI
41AQI
39AQI
43AQI
32AQI
25AQI
26AQI
24AQI
23AQI
29AQI
31AQI
33AQI
38AQI
35AQI
32AQI
37AQI
40AQI
34AQI
24AQI
23AQI
41AQI
54AQI
46AQI
39AQI
31AQI
32AQI
44AQI
52AQI
42AQI
53AQI
51AQI
42AQI
30AQI
22AQI
22AQI
19AQI
28AQI
36AQI
30AQI
30AQI
34AQI
37AQI
36AQI
23AQI
21AQI
29AQI
28AQI
27AQI
32AQI
29AQI
36AQI
54AQI
56AQI
61AQI
45AQI
37AQI
28AQI
21AQI
15AQI
15AQI
14AQI
16AQI
19AQI
18AQI
15AQI
18AQI
18AQI
21AQI
19AQI
17AQI
19AQI
18AQI
24AQI
17AQI
22AQI
23AQI
12AQI
14AQI
22AQI
26AQI
31AQI
29AQI
15AQI
16AQI
53AQI
57AQI
41AQI
28AQI
49AQI
34AQI
13AQI
25AQI
40AQI
33AQI
17AQI
33AQI
29AQI
31AQI
29AQI
41AQI
43AQI
34AQI
37AQI
24AQI
21AQI
20AQI
18AQI
17AQI
23AQI
29AQI
34AQI
25AQI
32AQI
No. of days
202524AQI
Highest AQI recorded in
August34AQI
Lowest AQI recorded in
May17AQI
202427AQI
Highest AQI recorded in
September41AQI
Lowest AQI recorded in
April11AQI
20239AQI
Highest AQI recorded in
November11AQI
Lowest AQI recorded in
December8AQI
202057AQI
Highest AQI recorded in
October140AQI
Lowest AQI recorded in
September51AQI
Most & Least Polluted Years Over the Last 4 Years
Red Feather Lakes's annual 2025 AQI (24) shows an average percentage change of 37.1% (worsened AQI) compared to previous years: 2020 (57), 2023 (9), 2024 (27).