Moscow, Idaho, 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
Moscow, Idaho, United States
AQI Trends: Highest and Lowest
Same Day Analysis (19th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 42 of Good air quality, showing improvement over 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 19th Oct - 20th Oct 2025
Moscow, Idaho, United States
6 AM19th Oct 2025
6 PM
5 AM20th Oct 2025
62AQI
57AQI
63AQI
57AQI
In the last 24 hours,
Moscow's AQI reached its highest point of 63 at 9 PM during the Night, while the lowest point, 57, was recorded at 3 PM during the Day between 19th Oct and 20th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Moscow, Idaho, United States
23°C14/31°C
18°C14/23°C
14°C7/22°C
17°C8/27°C
20°C10/30°C
20°C13/29°C
16°C9/22°C
17°C8/27°C
19°C11/29°C
19°C13/27°C
15°C11/20°C
15°C11/23°C
14°C10/20°C
13°C10/19°C
12°C8/19°C
12°C7/17°C
11°C4/19°C
13°C5/23°C
16°C7/26°C
19°C13/28°C
17°C11/24°C
10°C7/14°C
8°C5/10°C
8°C4/15°C
8°C3/15°C
7°C3/13°C
7°C2/14°C
11°C5/18°C
8°C1/16°C
10°C7/12°C
--°C/°C
48AQI
44AQI
49AQI
48AQI
2025 Days Vs Air Quality
Moscow, Idaho, United States
87%
255
13%
37
Total number of days with different AQI categories in last 293 days in 2025 (72 days remaining)
Under WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2025, 87% of 293 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
Moscow, Idaho, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
28AQI
27AQI
23AQI
23AQI
22AQI
21AQI
22AQI
25AQI
25AQI
24AQI
21AQI
21AQI
25AQI
25AQI
28AQI
24AQI
30AQI
33AQI
34AQI
31AQI
32AQI
41AQI
37AQI
44AQI
35AQI
35AQI
34AQI
37AQI
38AQI
36AQI
33AQI
19AQI
23AQI
23AQI
27AQI
29AQI
38AQI
33AQI
25AQI
30AQI
28AQI
31AQI
33AQI
24AQI
33AQI
34AQI
26AQI
32AQI
29AQI
26AQI
29AQI
25AQI
22AQI
19AQI
18AQI
18AQI
21AQI
24AQI
22AQI
23AQI
27AQI
27AQI
23AQI
20AQI
22AQI
26AQI
22AQI
21AQI
18AQI
18AQI
20AQI
18AQI
18AQI
18AQI
15AQI
17AQI
17AQI
18AQI
18AQI
19AQI
17AQI
19AQI
19AQI
21AQI
22AQI
21AQI
19AQI
18AQI
21AQI
19AQI
19AQI
20AQI
21AQI
23AQI
23AQI
23AQI
25AQI
17AQI
16AQI
23AQI
21AQI
21AQI
23AQI
24AQI
26AQI
28AQI
20AQI
23AQI
28AQI
25AQI
19AQI
23AQI
26AQI
28AQI
27AQI
34AQI
36AQI
28AQI
23AQI
23AQI
24AQI
26AQI
26AQI
20AQI
22AQI
22AQI
21AQI
20AQI
22AQI
26AQI
23AQI
20AQI
20AQI
20AQI
24AQI
19AQI
18AQI
18AQI
20AQI
19AQI
18AQI
22AQI
21AQI
22AQI
23AQI
26AQI
19AQI
22AQI
24AQI
23AQI
28AQI
27AQI
19AQI
24AQI
23AQI
28AQI
31AQI
29AQI
33AQI
35AQI
37AQI
34AQI
39AQI
33AQI
26AQI
25AQI
25AQI
28AQI
26AQI
24AQI
25AQI
20AQI
19AQI
26AQI
40AQI
36AQI
27AQI
21AQI
19AQI
21AQI
23AQI
28AQI
26AQI
27AQI
24AQI
29AQI
26AQI
24AQI
28AQI
28AQI
22AQI
26AQI
31AQI
33AQI
30AQI
30AQI
38AQI
39AQI
36AQI
35AQI
35AQI
31AQI
34AQI
36AQI
37AQI
32AQI
26AQI
25AQI
26AQI
31AQI
37AQI
40AQI
44AQI
51AQI
45AQI
39AQI
31AQI
35AQI
26AQI
21AQI
24AQI
28AQI
29AQI
32AQI
43AQI
46AQI
29AQI
20AQI
19AQI
26AQI
32AQI
30AQI
26AQI
43AQI
62AQI
59AQI
57AQI
56AQI
60AQI
60AQI
55AQI
54AQI
60AQI
57AQI
62AQI
67AQI
71AQI
90AQI
98AQI
61AQI
54AQI
53AQI
60AQI
51AQI
43AQI
57AQI
50AQI
31AQI
34AQI
38AQI
41AQI
42AQI
51AQI
49AQI
35AQI
47AQI
44AQI
42AQI
60AQI
55AQI
55AQI
52AQI
34AQI
38AQI
35AQI
56AQI
62AQI
51AQI
50AQI
48AQI
53AQI
53AQI
51AQI
33AQI
35AQI
43AQI
46AQI
52AQI
54AQI
54AQI
51AQI
42AQI
29AQI
26AQI
20AQI
24AQI
22AQI
27AQI
31AQI
40AQI
53AQI
48AQI
No. of days
202531AQI
Highest AQI recorded in
September53AQI
Lowest AQI recorded in
March20AQI
202426AQI
Highest AQI recorded in
July46AQI
Lowest AQI recorded in
March10AQI
202323AQI
Highest AQI recorded in
August45AQI
Lowest AQI recorded in
February10AQI
202220AQI
Highest AQI recorded in
September59AQI
Lowest AQI recorded in
March6AQI
202123AQI
Highest AQI recorded in
August57AQI
Lowest AQI recorded in
December8AQI
202028AQI
Highest AQI recorded in
September78AQI
Lowest AQI recorded in
December12AQI
Most & Least Polluted Years Over the Last 6 Years
Moscow's annual 2025 AQI (31) shows an average percentage change of 32.9% (worsened AQI) compared to previous years: 2020 (28), 2021 (23), 2022 (20), 2023 (23), 2024 (26).