Nashua, New Hampshire, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Nashua, New Hampshire, United States
AQI Trends: Highest and Lowest
Same Day Analysis (6th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 61 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 6th Aug - 7th Aug 2025
Nashua, New Hampshire, United States
5 AM6th Aug 2025
8 PM
4 AM7th Aug 2025
61AQI
51AQI
58AQI
54AQI
In the last 24 hours,
Nashua's AQI reached its highest point of 61 at 5 AM during the Day, while the lowest point, undefined, was recorded at 4 AM during the Night between 6th Aug and 7th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Nashua, New Hampshire, United States
26°C21/34°C
23°C20/31°C
21°C19/26°C
22°C18/28°C
23°C19/30°C
23°C19/28°C
24°C20/29°C
27°C21/33°C
27°C20/34°C
26°C23/29°C
23°C19/28°C
22°C12/30°C
25°C20/33°C
22°C18/25°C
19°C11/24°C
22°C14/28°C
26°C19/33°C
27°C22/36°C
24°C17/31°C
22°C17/25°C
26°C18/34°C
29°C21/37°C
29°C21/35°C
21°C17/23°C
19°C15/23°C
20°C10/26°C
22°C11/31°C
25°C15/33°C
22°C18/24°C
21°C14/25°C
--°C/°C
44AQI
44AQI
41AQI
41AQI
2025 Days Vs Air Quality
Nashua, New Hampshire, United States
84%
112
16%
21
Total number of days with different AQI categories in last 219 days in 2025 (146 days remaining)
Under WHO’s Safe Air Quality Limits: 84%
Health Risk Level:
Low
In 2025, 84% of 219 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
Nashua, New Hampshire, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
17AQI
19AQI
20AQI
25AQI
34AQI
18AQI
17AQI
23AQI
21AQI
19AQI
17AQI
15AQI
15AQI
14AQI
21AQI
19AQI
14AQI
14AQI
19AQI
25AQI
10AQI
13AQI
20AQI
46AQI
19AQI
16AQI
32AQI
18AQI
21AQI
44AQI
27AQI
10AQI
16AQI
24AQI
19AQI
17AQI
34AQI
41AQI
32AQI
16AQI
20AQI
24AQI
20AQI
22AQI
13AQI
19AQI
20AQI
25AQI
28AQI
28AQI
35AQI
34AQI
17AQI
12AQI
12AQI
15AQI
15AQI
12AQI
12AQI
13AQI
19AQI
22AQI
25AQI
18AQI
30AQI
19AQI
13AQI
17AQI
22AQI
39AQI
57AQI
58AQI
53AQI
80AQI
76AQI
34AQI
48AQI
69AQI
54AQI
44AQI
37AQI
36AQI
27AQI
22AQI
30AQI
31AQI
51AQI
51AQI
50AQI
54AQI
50AQI
40AQI
26AQI
25AQI
33AQI
30AQI
38AQI
31AQI
42AQI
41AQI
39AQI
53AQI
45AQI
30AQI
26AQI
26AQI
28AQI
31AQI
22AQI
23AQI
29AQI
41AQI
35AQI
17AQI
22AQI
21AQI
28AQI
19AQI
22AQI
30AQI
36AQI
76AQI
83AQI
67AQI
57AQI
47AQI
67AQI
54AQI
31AQI
60AQI
81AQI
97AQI
61AQI
23AQI
20AQI
22AQI
42AQI
38AQI
64AQI
No. of days
202532AQI
Highest AQI recorded in
August64AQI
Lowest AQI recorded in
April20AQI
Most & Least Polluted Years Over the Last 1 Years
Nashua's annual 2025 AQI (32) shows an average percentage change of NaN% (improved AQI) compared to previous years: .