Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 7°F | 24°F | 16°F | 0.5" |
February | 8°F | 26°F | 17°F | 0.4" |
March | 20°F | 41°F | 29°F | 1.2" |
April | 30°F | 52°F | 40°F | 2.0" |
May | 40°F | 65°F | 51°F | 3.7" |
June | 49°F | 74°F | 61°F | 3.9" |
July | 56°F | 81°F | 68°F | 3.7" |
August | 54°F | 78°F | 66°F | 3.8" |
September | 47°F | 71°F | 58°F | 2.8" |
October | 37°F | 56°F | 46°F | 3.0" |
November | 26°F | 43°F | 34°F | 1.1" |
December | 12°F | 27°F | 20°F | 1.3" |
Index | Mason | Wisconsin | National |
Air quality index | 35 | 69 | 42 |
Pollution index | 1,273,320 | 2,842,418 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 326 |
Days with moderate air quality | 38 |
Days w/ poor A.Q. for sensitive groups | 1 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.003% |
Benzene | 0.010% |
Carbon Tetrachloride | 0.020% |
Lead | 0.002% |
Mercury | 0.010% |
City | Population | Air Quality Index | National Avg. |
Marengo, WI | 137 | 35 | 30.0% |
Grand View, WI | 103 | 35 | 30.0% |
Ashland, WI | 7,841 | 35 | 30.0% |
Drummond, WI | 124 | 35 | 30.0% |
Mason, WI | 109 | 35 | 30.0% |
City | Population | Air Quality Index | National Avg. |
Eagle, AK | 109 | 38 | 24.0% |
Mud Bay, AK | 109 | 20 | 60.0% |
Standing Rock, AL | 109 | 42 | 16.0% |
Kohls Ranch, AZ | 109 | 60 | 20.0% |
Vilas, CO | 109 | 20 | 60.0% |
Mason, WI | 109 | 35 | 30.0% |