| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 21°F | 38°F | 29°F | 2.8" |
| February | 22°F | 39°F | 30°F | 2.3" |
| March | 34°F | 54°F | 43°F | 3.6" |
| April | 44°F | 67°F | 54°F | 5.1" |
| May | 54°F | 75°F | 64°F | 4.7" |
| June | 63°F | 83°F | 73°F | 5.9" |
| July | 66°F | 85°F | 76°F | 4.3" |
| August | 65°F | 85°F | 74°F | 3.5" |
| September | 57°F | 79°F | 67°F | 3.2" |
| October | 46°F | 67°F | 55°F | 3.4" |
| November | 34°F | 54°F | 43°F | 3.0" |
| December | 26°F | 42°F | 33°F | 3.8" |
| Index | Ladoga | Indiana | National |
| Air quality index | 42 | 56 | 42 |
| Pollution index | 1,601,640 | 2,719,453 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 276 |
| Days with moderate air quality | 89 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.004% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.040% |
| Mercury | 0.290% |
| City | Population | Air Quality Index | National Avg. |
| Waynetown, IN | 1,007 | 42 | 16.0% |
| New Market, IN | 639 | 42 | 16.0% |
| Alamo, IN | 69 | 42 | 16.0% |
| New Ross, IN | 516 | 42 | 16.0% |
| Darlington, IN | 884 | 42 | 16.0% |
| Ladoga, IN | 1,274 | 42 | 16.0% |
| City | Population | Air Quality Index | National Avg. |
| Oglethorpe, GA | 1,274 | 39 | 22.0% |
| Center Point, LA | 1,274 | 30 | 40.0% |
| Magnolia, NC | 1,274 | 40 | 20.0% |
| Delevan, NY | 1,274 | 39 | 22.0% |
| Brickerville, PA | 1,274 | 42 | 16.0% |
| Ladoga, IN | 1,274 | 42 | 16.0% |
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