Newcastle, Wyoming, 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
Newcastle, Wyoming, United States
AQI Trends: Highest and Lowest
Same Day Analysis (10th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 30 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 11th Aug - 12th Aug 2025
Newcastle, Wyoming, United States
5 AM11th Aug 2025
8 PM
4 AM12th Aug 2025
AQI
AQI
27AQI
14AQI
In the last 24 hours,
Newcastle's AQI reached its highest point of 27 at 5 AM during the Night, while the lowest point, 14, was recorded at 8 PM during the Night between 11th Aug and 12th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Newcastle, Wyoming, United States
25°C16/33°C
27°C18/37°C
23°C17/28°C
17°C14/21°C
17°C11/26°C
24°C16/31°C
24°C17/31°C
25°C18/34°C
26°C18/36°C
27°C21/33°C
23°C18/29°C
23°C15/30°C
25°C15/34°C
27°C18/37°C
26°C17/36°C
26°C19/34°C
22°C18/26°C
21°C17/26°C
21°C16/27°C
22°C16/29°C
24°C15/33°C
24°C16/31°C
25°C17/33°C
24°C17/33°C
25°C19/33°C
28°C19/39°C
21°C16/26°C
19°C13/27°C
20°C12/27°C
--°C/°C
--°C/°C
28AQI
23AQI
30AQI
25AQI
2025 Days Vs Air Quality
Newcastle, Wyoming, United States
97%
133
3%
4
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Under WHO’s Safe Air Quality Limits: 97%
Health Risk Level:
Very Low
In 2025, 97% of 223 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
Newcastle, Wyoming, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
33AQI
45AQI
33AQI
28AQI
31AQI
29AQI
32AQI
36AQI
29AQI
29AQI
33AQI
35AQI
31AQI
39AQI
43AQI
44AQI
37AQI
36AQI
28AQI
32AQI
37AQI
28AQI
21AQI
19AQI
31AQI
27AQI
28AQI
29AQI
34AQI
26AQI
27AQI
35AQI
33AQI
27AQI
29AQI
27AQI
28AQI
30AQI
28AQI
28AQI
25AQI
27AQI
31AQI
31AQI
32AQI
29AQI
31AQI
32AQI
31AQI
25AQI
30AQI
26AQI
26AQI
23AQI
23AQI
23AQI
24AQI
24AQI
29AQI
19AQI
26AQI
30AQI
28AQI
29AQI
30AQI
41AQI
37AQI
31AQI
25AQI
30AQI
32AQI
22AQI
30AQI
54AQI
54AQI
54AQI
49AQI
49AQI
42AQI
36AQI
34AQI
30AQI
33AQI
29AQI
34AQI
38AQI
46AQI
44AQI
36AQI
34AQI
35AQI
34AQI
36AQI
36AQI
31AQI
30AQI
31AQI
37AQI
36AQI
34AQI
40AQI
30AQI
30AQI
30AQI
34AQI
34AQI
43AQI
35AQI
38AQI
34AQI
34AQI
31AQI
37AQI
44AQI
39AQI
36AQI
34AQI
35AQI
32AQI
30AQI
34AQI
38AQI
33AQI
35AQI
32AQI
37AQI
50AQI
52AQI
45AQI
37AQI
34AQI
37AQI
44AQI
39AQI
42AQI
23AQI
30AQI
34AQI
31AQI
28AQI
37AQI
35AQI
38AQI
No. of days
202533AQI
Highest AQI recorded in
August38AQI
Lowest AQI recorded in
May28AQI
Most & Least Polluted Years Over the Last 1 Years
Newcastle's annual 2025 AQI (33) shows an average percentage change of NaN% (improved AQI) compared to previous years: .