Idaho City, Idaho, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
February Air Quality Analysis
Idaho City, Idaho, United States
AQI Trends: Highest and Lowest
Same Day Analysis (8th February):
On this day, AQI across the 1 years varied significantly: 2026 ranks 1st highest AQI at 43 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 7th Feb - 8th Feb 2026
Idaho City, Idaho, United States
8 AM7th Feb 2026
5 PM
7 AM8th Feb 2026
54AQI
29AQI
52AQI
44AQI
In the last 24 hours,
Idaho City's AQI reached its highest point of 54 at 6 PM during the Day, while the lowest point, 29, was recorded at 2 PM during the Day between 7th Feb and 8th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Idaho City, Idaho, United States
-3°C-7/3°C
-1°C-4/4°C
0°C-3/4°C
2°C0/4°C
2°C0/5°C
1°C-3/6°C
-3°C-5/1°C
-2°C-7/4°C
0°C-2/5°C
-4°C-7/0°C
-6°C-9/0°C
-7°C-10/-1°C
-6°C-10/-2°C
-6°C-10/0°C
-7°C-11/-1°C
-5°C-9/1°C
-3°C-6/3°C
0°C-4/5°C
0°C-3/4°C
0°C-3/4°C
2°C-1/6°C
4°C1/9°C
5°C2/10°C
3°C-1/8°C
4°C1/10°C
5°C2/10°C
6°C2/13°C
7°C4/12°C
6°C2/12°C
6°C4/9°C
44AQI
31AQI
44AQI
33AQI
2026 Days Vs Air Quality
Idaho City, Idaho, United States
95%
37
5%
2
Total number of days with different AQI categories in last 40 days in 2026 (325 days remaining)
Under WHO’s Safe Air Quality Limits: 95%
Health Risk Level:
Very Low
In 2026, 95% of 40 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
Idaho City, Idaho, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
57AQI (US)
48AQI (US)
30AQI (US)
33AQI (US)
23AQI (US)
36AQI (US)
30AQI (US)
33AQI (US)
52AQI (US)
35AQI (US)
30AQI (US)
50AQI (US)
46AQI (US)
44AQI (US)
41AQI (US)
45AQI (US)
35AQI (US)
34AQI (US)
33AQI (US)
26AQI (US)
32AQI (US)
35AQI (US)
43AQI (US)
39AQI (US)
28AQI (US)
30AQI (US)
37AQI (US)
30AQI (US)
39AQI (US)
49AQI (US)
39AQI (US)
32AQI (US)
36AQI (US)
40AQI (US)
34AQI (US)
40AQI (US)
43AQI (US)
42AQI (US)
43AQI (US)
37AQI (US)
39AQI (US)
No. of days
202638AQI (US)
Highest AQI (US) recorded in
February39AQI (US)
Lowest AQI (US) recorded in
January37AQI (US)
202537AQI (US)
Highest AQI (US) recorded in
December61AQI (US)
Lowest AQI (US) recorded in
March28AQI (US)
Most & Least Polluted Years Over the Last 2 Years
Idaho City's annual 2026 AQI (US) (38) shows an average percentage change of 0.8% (worsened AQI (US)) compared to previous years: 2025 (37).