Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 22°F | 36°F | 29°F | 6.9" |
February | 19°F | 34°F | 26°F | 3.4" |
March | 33°F | 54°F | 42°F | 3.3" |
April | 41°F | 65°F | 52°F | 5.8" |
May | 52°F | 78°F | 65°F | 3.4" |
June | 63°F | 85°F | 74°F | 6.1" |
July | 63°F | 83°F | 73°F | 5.8" |
August | 65°F | 86°F | 75°F | 5.4" |
September | 57°F | 83°F | 69°F | 7.0" |
October | 46°F | 69°F | 57°F | 5.6" |
November | 33°F | 53°F | 42°F | 7.3" |
December | 21°F | 35°F | 27°F | 3.7" |
Index | Garrett | Illinois | National |
Air quality index | 42 | 41 | 50 |
Pollution index | 703,218 | 3,347,295 | 5,066,862 |
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 | 0.001% |
Benzene | 0.020% |
Carbon Tetrachloride | 0.000% |
Lead | 0.000% |
Mercury | 0.000% |
City, State | Population | Air Quality Index | National Avg. |
Arcola, IL | 2,881 | 42 | 16% |
Tuscola, IL | 4,478 | 42 | 16% |
Pesotum, IL | 514 | 42 | 16% |
Atwood, IL | 1,106 | 42 | 16% |
Villa Grove, IL | 2,222 | 42 | 16% |
Garrett, IL | 79 | 42 | 16% |
City, State | Population | Air Quality Index | National Avg. |
Washington, CA | 79 | 44 | 12% |
Fairburn, SD | 79 | 44 | 12% |
Cayce, KY | 79 | 26 | 48% |
Flute Springs, OK | 79 | 36 | 28% |
Ozan, AR | 79 | 39 | 22% |
Garrett, IL | 79 | 42 | 16% |