Messenger Street, Johnstown, 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
Messenger Street, Johnstown, Pennsylvania, United States
AQI Trends: Highest and Lowest
Same Day Analysis (16th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 23 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 16th Oct - 17th Oct 2025
Messenger Street, Johnstown, Pennsylvania, United States
7 AM16th Oct 2025
6 PM
6 AM17th Oct 2025
36AQI
13AQI
30AQI
18AQI
In the last 24 hours,
Messenger Street's AQI reached its highest point of 36 at 12 PM during the Day, while the lowest point, 13, was recorded at 7 AM during the Day between 16th Oct and 17th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Messenger Street, Johnstown, Pennsylvania, United States
16°C11/22°C
18°C8/28°C
20°C12/28°C
17°C15/20°C
21°C16/26°C
22°C16/29°C
20°C17/23°C
19°C16/25°C
19°C17/23°C
19°C15/26°C
17°C13/23°C
18°C11/28°C
19°C11/26°C
19°C13/28°C
16°C10/25°C
14°C6/25°C
16°C7/25°C
17°C7/28°C
18°C8/29°C
19°C10/29°C
18°C15/25°C
14°C7/16°C
9°C2/15°C
9°C3/18°C
11°C4/21°C
13°C9/18°C
12°C10/14°C
13°C10/17°C
13°C9/17°C
9°C4/17°C
--°C/°C
35AQI
27AQI
32AQI
27AQI
2025 Days Vs Air Quality
Messenger Street, Johnstown, Pennsylvania, United States
84%
171
16%
33
Total number of days with different AQI categories in last 290 days in 2025 (75 days remaining)
Under WHO’s Safe Air Quality Limits: 84%
Health Risk Level:
Low
In 2025, 84% of 290 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
Messenger Street, Johnstown, Pennsylvania, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
24AQI
38AQI
56AQI
53AQI
28AQI
19AQI
31AQI
25AQI
22AQI
28AQI
15AQI
20AQI
14AQI
23AQI
28AQI
32AQI
22AQI
22AQI
34AQI
23AQI
14AQI
22AQI
35AQI
51AQI
21AQI
34AQI
21AQI
26AQI
32AQI
46AQI
20AQI
13AQI
18AQI
31AQI
20AQI
25AQI
25AQI
20AQI
19AQI
22AQI
17AQI
19AQI
27AQI
18AQI
24AQI
37AQI
36AQI
18AQI
17AQI
23AQI
41AQI
28AQI
16AQI
20AQI
21AQI
18AQI
12AQI
12AQI
12AQI
18AQI
23AQI
21AQI
13AQI
18AQI
27AQI
30AQI
19AQI
25AQI
35AQI
59AQI
67AQI
51AQI
46AQI
49AQI
44AQI
44AQI
56AQI
64AQI
69AQI
61AQI
40AQI
20AQI
20AQI
25AQI
27AQI
27AQI
39AQI
43AQI
55AQI
56AQI
57AQI
46AQI
32AQI
27AQI
34AQI
40AQI
33AQI
32AQI
46AQI
58AQI
64AQI
58AQI
50AQI
33AQI
41AQI
43AQI
51AQI
49AQI
39AQI
34AQI
39AQI
39AQI
27AQI
28AQI
34AQI
34AQI
40AQI
56AQI
52AQI
54AQI
53AQI
50AQI
47AQI
46AQI
51AQI
51AQI
54AQI
54AQI
28AQI
43AQI
55AQI
63AQI
74AQI
70AQI
75AQI
59AQI
50AQI
46AQI
41AQI
28AQI
39AQI
56AQI
56AQI
50AQI
24AQI
23AQI
21AQI
16AQI
21AQI
28AQI
33AQI
22AQI
18AQI
22AQI
26AQI
23AQI
22AQI
25AQI
24AQI
24AQI
29AQI
28AQI
44AQI
49AQI
30AQI
22AQI
23AQI
24AQI
26AQI
31AQI
42AQI
47AQI
42AQI
43AQI
37AQI
34AQI
46AQI
41AQI
34AQI
33AQI
27AQI
35AQI
22AQI
28AQI
29AQI
36AQI
38AQI
26AQI
25AQI
20AQI
34AQI
44AQI
43AQI
38AQI
29AQI
17AQI
22AQI
22AQI
33AQI
32AQI
25AQI
24AQI
28AQI
23AQI
40AQI
25AQI
22AQI
43AQI
45AQI
39AQI
33AQI
29AQI
No. of days
202534AQI
Highest AQI recorded in
July45AQI
Lowest AQI recorded in
May22AQI
Most & Least Polluted Years Over the Last 1 Years
Messenger Street's annual 2025 AQI (34) shows an average percentage change of NaN% (improved AQI) compared to previous years: .