Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 15°F | 34°F | 24°F | 1.5" |
February | 16°F | 37°F | 26°F | 1.9" |
March | 29°F | 53°F | 40°F | 2.8" |
April | 39°F | 66°F | 52°F | 3.9" |
May | 49°F | 76°F | 63°F | 4.3" |
June | 60°F | 85°F | 73°F | 6.0" |
July | 64°F | 88°F | 76°F | 5.3" |
August | 62°F | 86°F | 73°F | 4.9" |
September | 54°F | 81°F | 66°F | 3.4" |
October | 42°F | 68°F | 54°F | 3.2" |
November | 31°F | 54°F | 42°F | 2.1" |
December | 19°F | 37°F | 28°F | 2.6" |
Index | Viola | Illinois | National |
Air quality index | 46 | 41 | 42 |
Pollution index | 640,499 | 3,148,694 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 217 |
Days with moderate air quality | 145 |
Days w/ poor A.Q. for sensitive groups | 3 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.001% |
Benzene | 0.030% |
Carbon Tetrachloride | 0.000% |
Lead | 0.003% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Aledo, IL | 3,625 | 32 | 36.0% |
Little York, IL | 423 | 32 | 36.0% |
Seaton, IL | 278 | 32 | 36.0% |
Rio, IL | 206 | 46 | 8.0% |
Sherrard, IL | 628 | 46 | 8.0% |
Viola, IL | 1,040 | 46 | 8.0% |
City | Population | Air Quality Index | National Avg. |
Hannawa Falls, NY | 1,040 | 0 | 100.0% |
Elliston, VA | 1,040 | 41 | 18.0% |
Saint-Patrice-de-Beaurivage, QC | 1,040 | n/a | |
Duck Lake No. 463, SK | 1,040 | n/a | |
Tahoma, CA | 1,039 | 44 | 12.0% |
Viola, IL | 1,040 | 46 | 8.0% |