Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 22°F | 37°F | 28°F | 2.4" |
February | 23°F | 39°F | 30°F | 1.0" |
March | 36°F | 55°F | 44°F | 4.5" |
April | 45°F | 67°F | 55°F | 12.9" |
May | 55°F | 76°F | 65°F | 9.0" |
June | 64°F | 85°F | 73°F | 4.0" |
July | 66°F | 87°F | 76°F | 15.2" |
August | 64°F | 86°F | 74°F | 6.8" |
September | 57°F | 80°F | 67°F | 6.1" |
October | 46°F | 67°F | 55°F | 4.5" |
November | 36°F | 54°F | 44°F | 3.5" |
December | 27°F | 40°F | 33°F | 2.2" |
Index | Ohlman | Illinois | National |
Air quality index | 40 | 41 | 42 |
Pollution index | 2,357,280 | 3,148,694 | 2,726,193 |
Measurement | Total |
Days measured | 360 |
Days with good air quality | 287 |
Days with moderate air quality | 73 |
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 | 0.004% |
Lead | 0.010% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Palmer, IL | 288 | 40 | 20.0% |
Coalton, IL | 337 | 40 | 20.0% |
Hillsboro, IL | 6,177 | 40 | 20.0% |
Ramsey, IL | 871 | 40 | 20.0% |
Herrick, IL | 367 | 40 | 20.0% |
Ohlman, IL | 103 | 40 | 20.0% |
City | Population | Air Quality Index | National Avg. |
Broomtown, AL | 103 | 39 | 22.0% |
Fargo, AR | 103 | 45 | 10.0% |
Sedalia, CO | 103 | 58 | 16.0% |
Manassas, GA | 103 | 39 | 22.0% |
Matthews, GA | 103 | 47 | 6.0% |
Ohlman, IL | 103 | 40 | 20.0% |