Montoursville, Pennsylvania, 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
Montoursville, Pennsylvania, United States
AQI Trends: Highest and Lowest
Same Day Analysis (25th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 16 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
Montoursville, Pennsylvania, United States
7 AM25th Oct 2025
6 PM
6 AM26th Oct 2025
17AQI
11AQI
30AQI
11AQI
In the last 24 hours,
Montoursville's AQI reached its highest point of 30 at 1 AM during the Night, while the lowest point, 11, was recorded at 8 PM during the Night between 25th Oct and 26th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Montoursville, Pennsylvania, United States
21°C17/27°C
20°C14/27°C
21°C15/30°C
19°C12/26°C
19°C13/29°C
16°C10/24°C
15°C7/24°C
17°C9/26°C
18°C9/29°C
19°C9/29°C
19°C9/28°C
20°C15/26°C
16°C9/18°C
11°C5/17°C
9°C1/19°C
13°C5/21°C
16°C13/22°C
13°C12/14°C
13°C10/17°C
13°C7/19°C
10°C5/17°C
10°C3/19°C
15°C9/24°C
17°C12/24°C
12°C7/15°C
10°C5/19°C
9°C5/13°C
8°C5/12°C
7°C3/12°C
8°C3/13°C
--°C/°C
28AQI
22AQI
27AQI
22AQI
2025 Days Vs Air Quality
Montoursville, Pennsylvania, United States
89%
189
11%
24
Total number of days with different AQI categories in last 299 days in 2025 (66 days remaining)
Under WHO’s Safe Air Quality Limits: 89%
Health Risk Level:
Low
In 2025, 89% of 299 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
Montoursville, Pennsylvania, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
18AQI
35AQI
58AQI
54AQI
40AQI
18AQI
23AQI
26AQI
22AQI
24AQI
23AQI
21AQI
16AQI
18AQI
29AQI
36AQI
21AQI
21AQI
27AQI
29AQI
13AQI
25AQI
34AQI
52AQI
20AQI
22AQI
22AQI
22AQI
39AQI
56AQI
29AQI
14AQI
18AQI
24AQI
18AQI
20AQI
24AQI
20AQI
19AQI
20AQI
21AQI
23AQI
27AQI
18AQI
19AQI
25AQI
30AQI
30AQI
22AQI
27AQI
38AQI
35AQI
17AQI
15AQI
15AQI
15AQI
11AQI
12AQI
11AQI
13AQI
17AQI
21AQI
18AQI
18AQI
24AQI
24AQI
15AQI
17AQI
29AQI
51AQI
64AQI
56AQI
53AQI
61AQI
38AQI
38AQI
55AQI
63AQI
66AQI
64AQI
40AQI
31AQI
23AQI
25AQI
22AQI
24AQI
37AQI
41AQI
47AQI
50AQI
51AQI
38AQI
36AQI
25AQI
32AQI
34AQI
28AQI
32AQI
46AQI
50AQI
52AQI
56AQI
42AQI
35AQI
31AQI
36AQI
42AQI
37AQI
33AQI
31AQI
29AQI
38AQI
27AQI
19AQI
21AQI
29AQI
38AQI
31AQI
35AQI
37AQI
38AQI
34AQI
51AQI
33AQI
40AQI
39AQI
47AQI
39AQI
30AQI
45AQI
62AQI
76AQI
74AQI
56AQI
55AQI
37AQI
34AQI
48AQI
50AQI
37AQI
35AQI
58AQI
55AQI
50AQI
22AQI
23AQI
16AQI
13AQI
23AQI
29AQI
28AQI
21AQI
17AQI
18AQI
22AQI
25AQI
19AQI
24AQI
25AQI
28AQI
31AQI
28AQI
36AQI
49AQI
32AQI
22AQI
22AQI
27AQI
30AQI
36AQI
42AQI
43AQI
44AQI
41AQI
29AQI
24AQI
31AQI
20AQI
23AQI
23AQI
34AQI
37AQI
28AQI
25AQI
22AQI
31AQI
23AQI
23AQI
20AQI
19AQI
26AQI
38AQI
47AQI
40AQI
38AQI
17AQI
17AQI
19AQI
30AQI
20AQI
28AQI
24AQI
26AQI
25AQI
23AQI
35AQI
35AQI
24AQI
24AQI
22AQI
12AQI
14AQI
16AQI
41AQI
25AQI
21AQI
41AQI
37AQI
37AQI
30AQI
26AQI
No. of days
202531AQI
Highest AQI recorded in
March41AQI
Lowest AQI recorded in
May21AQI
Most & Least Polluted Years Over the Last 1 Years
Montoursville's annual 2025 AQI (31) shows an average percentage change of NaN% (improved AQI) compared to previous years: .