Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 20°F | 36°F | 27°F | 5.6" |
February | 20°F | 37°F | 28°F | 3.2" |
March | 33°F | 53°F | 42°F | 4.2" |
April | 44°F | 66°F | 54°F | 7.2" |
May | 54°F | 75°F | 64°F | 7.5" |
June | 63°F | 84°F | 73°F | 7.8" |
July | 64°F | 85°F | 74°F | 7.8" |
August | 62°F | 84°F | 73°F | 10.6" |
September | 56°F | 79°F | 66°F | 7.9" |
October | 45°F | 67°F | 55°F | 7.0" |
November | 34°F | 53°F | 43°F | 6.5" |
December | 26°F | 40°F | 32°F | 5.0" |
Index | Alvan | Illinois | National |
Air quality index | 42 | 41 | 42 |
Pollution index | 9,793,540 | 3,148,694 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 281 |
Days with moderate air quality | 84 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.010% |
Benzene | 0.070% |
Carbon Tetrachloride | 0.010% |
Lead | 0.001% |
Mercury | 0.040% |
City | Population | Air Quality Index | National Avg. |
Henning, IL | 258 | 42 | 16.0% |
Fithian, IL | 536 | 42 | 16.0% |
Covington, IN | 2,572 | 42 | 16.0% |
Hoopeston, IL | 5,178 | 42 | 16.0% |
Potomac, IL | 744 | 42 | 16.0% |
Alvan, IL | 308 | 42 | 16.0% |
City | Population | Air Quality Index | National Avg. |
Boligee, AL | 308 | 35 | 30.0% |
Willisville, AR | 308 | 35 | 30.0% |
Coal Creek town, CO | 308 | 47 | 6.0% |
Twin Lakes, IA | 308 | 37 | 26.0% |
Edwardsport, IN | 308 | 1 | 98.0% |
Alvan, IL | 308 | 42 | 16.0% |