Green River, Wyoming, 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
Green River, Wyoming, United States
AQI Trends: Highest and Lowest
Same Day Analysis (27th October ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 18 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 27th Oct - 28th Oct 2025
Green River, Wyoming, United States
7 AM27th Oct 2025
6 PM
6 AM28th Oct 2025
27AQI
12AQI
29AQI
11AQI
In the last 24 hours,
Green River's AQI reached its highest point of 29 at 9 PM during the Night, while the lowest point, 11, was recorded at 6 AM during the Night between 27th Oct and 28th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Green River, Wyoming, United States
15°C9/23°C
15°C8/23°C
12°C6/21°C
13°C4/21°C
14°C5/25°C
15°C7/25°C
10°C6/17°C
8°C6/13°C
8°C4/13°C
9°C-1/18°C
11°C1/23°C
13°C2/25°C
13°C6/20°C
13°C3/20°C
5°C1/10°C
7°C-2/16°C
12°C6/18°C
9°C5/17°C
5°C2/10°C
5°C1/10°C
6°C0/14°C
8°C-1/20°C
5°C0/11°C
4°C-3/14°C
7°C-2/17°C
7°C-1/17°C
6°C-2/16°C
7°C-1/17°C
7°C1/13°C
4°C-2/7°C
--°C/°C
25AQI
18AQI
23AQI
18AQI
2025 Days Vs Air Quality
Green River, Wyoming, United States
98%
295
2%
5
Total number of days with different AQI categories in last 301 days in 2025 (64 days remaining)
Under WHO’s Safe Air Quality Limits: 98%
Health Risk Level:
Very Low
In 2025, 98% of 301 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
Green River, Wyoming, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
31AQI
32AQI
25AQI
26AQI
23AQI
23AQI
27AQI
27AQI
29AQI
28AQI
28AQI
27AQI
24AQI
25AQI
31AQI
32AQI
32AQI
29AQI
28AQI
30AQI
34AQI
31AQI
29AQI
27AQI
27AQI
28AQI
29AQI
34AQI
43AQI
48AQI
39AQI
32AQI
28AQI
28AQI
28AQI
28AQI
28AQI
30AQI
30AQI
28AQI
27AQI
28AQI
31AQI
21AQI
18AQI
19AQI
19AQI
17AQI
18AQI
18AQI
18AQI
19AQI
20AQI
19AQI
21AQI
22AQI
22AQI
19AQI
19AQI
22AQI
20AQI
23AQI
20AQI
19AQI
19AQI
18AQI
18AQI
20AQI
26AQI
23AQI
22AQI
19AQI
17AQI
16AQI
15AQI
20AQI
18AQI
20AQI
18AQI
17AQI
17AQI
17AQI
18AQI
19AQI
21AQI
18AQI
29AQI
54AQI
33AQI
25AQI
18AQI
17AQI
16AQI
17AQI
15AQI
16AQI
23AQI
20AQI
44AQI
40AQI
36AQI
26AQI
21AQI
20AQI
24AQI
24AQI
19AQI
12AQI
15AQI
17AQI
17AQI
24AQI
23AQI
21AQI
18AQI
19AQI
21AQI
15AQI
14AQI
18AQI
14AQI
17AQI
22AQI
18AQI
19AQI
14AQI
16AQI
17AQI
20AQI
21AQI
20AQI
25AQI
29AQI
20AQI
16AQI
20AQI
16AQI
16AQI
21AQI
18AQI
19AQI
19AQI
25AQI
25AQI
19AQI
16AQI
24AQI
25AQI
20AQI
29AQI
26AQI
24AQI
23AQI
20AQI
21AQI
25AQI
24AQI
30AQI
29AQI
36AQI
27AQI
25AQI
29AQI
28AQI
28AQI
24AQI
22AQI
23AQI
29AQI
27AQI
33AQI
56AQI
47AQI
21AQI
25AQI
30AQI
28AQI
35AQI
39AQI
31AQI
27AQI
30AQI
28AQI
30AQI
27AQI
32AQI
30AQI
23AQI
23AQI
24AQI
24AQI
31AQI
32AQI
32AQI
32AQI
29AQI
31AQI
32AQI
33AQI
28AQI
25AQI
22AQI
20AQI
22AQI
28AQI
32AQI
36AQI
37AQI
36AQI
44AQI
42AQI
39AQI
31AQI
24AQI
20AQI
31AQI
46AQI
39AQI
33AQI
31AQI
18AQI
19AQI
21AQI
23AQI
28AQI
32AQI
31AQI
32AQI
18AQI
19AQI
18AQI
20AQI
23AQI
27AQI
31AQI
31AQI
37AQI
48AQI
27AQI
26AQI
39AQI
35AQI
29AQI
31AQI
29AQI
35AQI
52AQI
68AQI
64AQI
42AQI
25AQI
23AQI
17AQI
16AQI
15AQI
13AQI
16AQI
17AQI
18AQI
16AQI
17AQI
17AQI
19AQI
16AQI
15AQI
15AQI
19AQI
30AQI
25AQI
16AQI
24AQI
24AQI
27AQI
20AQI
19AQI
12AQI
22AQI
18AQI
18AQI
20AQI
22AQI
16AQI
21AQI
30AQI
19AQI
22AQI
21AQI
22AQI
21AQI
24AQI
23AQI
22AQI
22AQI
21AQI
21AQI
17AQI
17AQI
22AQI
25AQI
18AQI
30AQI
23AQI
21AQI
21AQI
20AQI
29AQI
30AQI
29AQI
25AQI
21AQI
No. of days
202525AQI
Highest AQI recorded in
July30AQI
Lowest AQI recorded in
May20AQI
202431AQI
Highest AQI recorded in
July43AQI
Lowest AQI recorded in
March8AQI
202318AQI
Highest AQI recorded in
November26AQI
Lowest AQI recorded in
December17AQI
202130AQI
Highest AQI recorded in
June37AQI
Lowest AQI recorded in
January23AQI
202029AQI
Highest AQI recorded in
September40AQI
Lowest AQI recorded in
November19AQI
Most & Least Polluted Years Over the Last 5 Years
Green River's annual 2025 AQI (25) shows an average percentage change of -2.2% (improved AQI) compared to previous years: 2020 (29), 2021 (30), 2023 (18), 2024 (31).