Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 15°F | 32°F | 23°F | 1.5" |
February | 16°F | 34°F | 24°F | 1.4" |
March | 29°F | 49°F | 38°F | 2.3" |
April | 39°F | 62°F | 50°F | 3.9" |
May | 49°F | 73°F | 61°F | 4.3" |
June | 59°F | 82°F | 70°F | 4.5" |
July | 62°F | 84°F | 73°F | 4.3" |
August | 60°F | 82°F | 71°F | 4.3" |
September | 53°F | 77°F | 64°F | 2.9" |
October | 42°F | 64°F | 52°F | 3.6" |
November | 30°F | 50°F | 40°F | 2.1" |
December | 20°F | 36°F | 28°F | 2.2" |
Index | Sandwich | Illinois | National |
Air quality index | 0 | 41 | 42 |
Pollution index | 1,874,490 | 3,148,694 | 2,726,193 |
Measurement | Total |
Days measured | 335 |
Days with good air quality | 334 |
Days with moderate air quality | 1 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.002% |
Benzene | 0.030% |
Carbon Tetrachloride | 0.010% |
Lead | 0.010% |
Mercury | 0.010% |
City | Population | Air Quality Index | National Avg. |
Oswego, IL | 35,470 | 0 | 100.0% |
Yorkville, IL | 19,386 | 0 | 100.0% |
Shabbona, IL | 937 | 0 | 100.0% |
Leland, IL | 932 | 0 | 100.0% |
Plattville, IL | 190 | 0 | 100.0% |
Sandwich, IL | 7,351 | 0 | 100.0% |
City | Population | Air Quality Index | National Avg. |
Globe, AZ | 7,351 | 60 | 20.0% |
Charles City, IA | 7,351 | 15 | 70.0% |
Iron Mountain, MI | 7,352 | 36 | 28.0% |
Hudsonville, MI | 7,353 | 38 | 24.0% |
Tuttle, OK | 7,348 | 48 | 4.0% |
Sandwich, IL | 7,351 | 0 | 100.0% |