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 | Park Ridge | Illinois | National |
Air quality index | 55 | 41 | 42 |
Pollution index | 3,795,410 | 3,148,694 | 2,726,193 |
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 | 0.030% |
Benzene | 0.050% |
Carbon Tetrachloride | 0.010% |
Lead | 0.003% |
Mercury | 0.310% |
City | Population | Air Quality Index | National Avg. |
Forest Lake, IL | 1,292 | 55 | 10.0% |
Palatine, IL | 67,875 | 55 | 10.0% |
Broadview, IL | 7,677 | 55 | 10.0% |
Elmwood Park, IL | 24,274 | 55 | 10.0% |
Stickney, IL | 6,607 | 55 | 10.0% |
Park Ridge, IL | 37,431 | 55 | 10.0% |
City | Population | Air Quality Index | National Avg. |
Spartanburg, SC | 37,448 | 44 | 12.0% |
La Presa, CA | 37,410 | 64 | 28.0% |
Navarre, FL | 37,390 | 31 | 38.0% |
Valley Stream, NY | 37,489 | 51 | 2.0% |
Muskogee, OK | 37,337 | 5 | 90.0% |
Park Ridge, IL | 37,431 | 55 | 10.0% |