Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 16°F | 34°F | 25°F | 2.3" |
February | 18°F | 36°F | 27°F | 2.3" |
March | 29°F | 49°F | 39°F | 2.8" |
April | 38°F | 63°F | 50°F | 3.9" |
May | 48°F | 73°F | 60°F | 5.4" |
June | 59°F | 83°F | 71°F | 4.5" |
July | 64°F | 86°F | 75°F | 5.2" |
August | 63°F | 84°F | 74°F | 4.4" |
September | 56°F | 78°F | 66°F | 3.6" |
October | 44°F | 65°F | 54°F | 3.4" |
November | 32°F | 52°F | 42°F | 2.3" |
December | 21°F | 38°F | 29°F | 2.9" |
Index | Northlake | Illinois | National |
Air quality index | 55 | 41 | 50 |
Pollution index | 14,981,300 | 3,347,295 | 5,066,862 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 121 |
Days with moderate air quality | 227 |
Days w/ poor A.Q. for sensitive groups | 16 |
Days with unhealthy air quality | 1 |
Pollutant | Total |
Arsenic | 0.010% |
Benzene | 0.140% |
Carbon Tetrachloride | 0.030% |
Lead | 0.020% |
Mercury | 0.010% |
City, State | Population | Air Quality Index | National Avg. |
Bellwood, IL | 19,146 | 55 | 10% |
La Grange, IL | 15,688 | 55 | 10% |
Melrose Park, IL | 25,422 | 55 | 10% |
Lisle, IL | 22,989 | 55 | 10% |
Lyons, IL | 10,571 | 55 | 10% |
Northlake, IL | 12,339 | 55 | 10% |
City, State | Population | Air Quality Index | National Avg. |
North Merrick, NY | 12,337 | 51 | 2% |
Steamboat Springs, CO | 12,336 | 47 | 6% |
Bayou Blue, LA | 12,333 | 41 | 18% |
Panama City Beach, FL | 12,333 | 38 | 24% |
Cleveland, MS | 12,346 | 43 | 14% |
Northlake, IL | 12,339 | 55 | 10% |