Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 25°F | 41°F | 32°F | 3.5" |
February | 27°F | 44°F | 34°F | 2.0" |
March | 39°F | 58°F | 47°F | 3.7" |
April | 48°F | 69°F | 58°F | 7.8" |
May | 57°F | 77°F | 66°F | 5.4" |
June | 66°F | 86°F | 76°F | 8.3" |
July | 68°F | 88°F | 78°F | 7.4" |
August | 66°F | 87°F | 76°F | 7.2" |
September | 59°F | 81°F | 69°F | 8.9" |
October | 48°F | 70°F | 58°F | 5.6" |
November | 38°F | 57°F | 47°F | 4.2" |
December | 30°F | 45°F | 37°F | 4.9" |
Index | St. Peter | Illinois | National |
Air quality index | 40 | 41 | 42 |
Pollution index | 1,561,310 | 3,148,694 | 2,726,193 |
Measurement | Total |
Days measured | 245 |
Days with good air quality | 224 |
Days with moderate air quality | 21 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.001% |
Benzene | 0.040% |
Carbon Tetrachloride | 0.010% |
Lead | 0.002% |
Mercury | 0.002% |
City | Population | Air Quality Index | National Avg. |
Mason, IL | 243 | 40 | 20.0% |
Farina, IL | 749 | 40 | 20.0% |
St. Elmo, IL | 1,466 | 40 | 20.0% |
Iola, IL | 91 | 40 | 20.0% |
Brownstown, IL | 839 | 40 | 20.0% |
St. Peter, IL | 438 | 40 | 20.0% |
City | Population | Air Quality Index | National Avg. |
Calion, AR | 438 | 35 | 30.0% |
Shaver Lake, CA | 438 | 60 | 20.0% |
Lake City, CO | 438 | 44 | 12.0% |
Moreland, GA | 438 | 52 | 4.0% |
Alleman, IA | 438 | 37 | 26.0% |
St. Peter, IL | 438 | 40 | 20.0% |