| County | Site | AQS ID | AQI Level | Pollutant | Occured | AQI |
|---|---|---|---|---|---|---|
| Kenosha | Chiwaukee Prairie | 55 059 0019 | Good | OZONE | 06 PM | 50 |
| Dodge | Horicon Wildlife Area | 55 027 0001 | Moderate | PM2.5 - LC | 05 AM | 55 |
| Grant | Potosi | 55 043 0009 | Moderate | PM2.5 - LC | 07 PM | 58 |
| Waukesha | Waukesha-Cleveland Ave. | 55 133 0027 | Moderate | PM2.5 - LC | 06 AM | 60 |
| Milwaukee | Milwaukee-16th St. Health Center | 55 079 0010 | Moderate | PM2.5 - LC | 07 AM | 58 |
| Rock | Beloit-Converse | 55 105 0030 | Moderate | OZONE | 06 PM | 64 |
| Sheboygan | Sheboygan-Kohler Andrae | 55 117 0006 | Moderate | OZONE | 04 PM | 61 |
| Milwaukee | Milwaukee-College Ave NR | 55 079 0056 | Good | PM2.5 - LC | 12 PM | 44 |
| Marathon | Lake Dubay | 55 073 0012 | Moderate | PM2.5 - LC | 05 AM | 61 |
| Dane | Madison East | 55 025 0041 | Moderate | PM2.5 - LC | 09 AM | 55 |
| Manitowoc | Manitowoc | 55 071 0007 | Good | OZONE | 04 PM | 48 |
| Dane | Madison University Ave. Well #6 | 55 025 0047 | Moderate | PM2.5 - LC | 11 PM | 54 |
| La Crosse | La Crosse DOT | 55 063 0012 | Good | OZONE | 06 PM | 42 |
| Milwaukee | Milwaukee-UWM UPark | 55 079 0068 | Good | OZONE | 06 PM | 45 |
| Racine | Racine-Payne & Dolan | 55 101 0020 | Good | OZONE | 07 PM | 47 |
| Oneida | Rhinelander Tower | 55 085 0996 | Good | SULFUR DIOXIDE | 01 AM | 0 |
| Kenosha | Kenosha-Water Tower | 55 059 0025 | Good | OZONE | 09 PM | 45 |
| Outagamie | Appleton | 55 087 0009 | Moderate | PM2.5 - LC | 01 AM | 57 |
| Door | Newport Park | 55 029 0004 | Good | OZONE | 03 PM | 36 |
| Ozaukee | Harrington Beach Park | 55 089 0009 | Good | OZONE | 06 PM | 47 |
| Eau Claire | Eau Claire DOT Sign Shop | 55 035 0014 | Moderate | PM2.5 - LC | 07 AM | 54 |
| Milwaukee | Bayside | 55 079 0085 | Good | OZONE | 07 PM | 47 |
| Outagamie | Kaukauna | 55 087 0015 | Good | SULFUR DIOXIDE | 09 AM | 3 |
| Forest | Potawatomi | 55 041 0007 | Moderate | PM2.5 - LC | 08 AM | 57 |
| Ashland | Bad River Tribal School | 55 003 0010 | Moderate | PM2.5 - LC | 07 AM | 98 |
| Sauk | Devils Lake | 55 111 0007 | Moderate | PM2.5 - LC | 02 PM | 52 |
| Brown | Green Bay East High | 55 009 0005 | Moderate | PM2.5 - LC | 01 AM | 56 |
| Brown | Green Bay UW | 55 009 0026 | Good | OZONE | 06 PM | 39 |
| Columbia | Columbus | 55 021 0015 | Good | OZONE | 05 PM | 42 |
| Ozaukee | Grafton | 55 089 0008 | Good | OZONE | 07 PM | 48 |
| Fond du Lac | Fond Du Lac | 55 039 0006 | Good | OZONE | 05 PM | 40 |
| Jefferson | Jefferson-Laatsch | 55 055 0009 | Good | OZONE | 06 PM | 45 |
| Sheboygan | Sheboygan-Haven | 55 117 0009 | Good | OZONE | 05 PM | 44 |
| Walworth | Elkhorn | 55 127 0006 | Good | OZONE | 06 PM | 46 |
| Kewaunee | Kewaunee | 55 061 0002 | Good | OZONE | 02 PM | 43 |
| Vilas | Trout Lake | 55 125 0001 | Good | OZONE | 08 PM | 33 |