| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 20°F | 34°F | 26°F | 4.1" |
| February | 15°F | 30°F | 23°F | 2.1" |
| March | 28°F | 46°F | 36°F | 2.2" |
| April | 38°F | 63°F | 50°F | 4.6" |
| May | 47°F | 73°F | 59°F | 2.8" |
| June | 60°F | 85°F | 72°F | 6.3" |
| July | 60°F | 84°F | 72°F | 6.2" |
| August | 63°F | 83°F | 72°F | 10.5" |
| September | 53°F | 80°F | 66°F | 2.8" |
| October | 46°F | 67°F | 55°F | 2.7" |
| November | 32°F | 49°F | 40°F | 2.8" |
| December | 21°F | 32°F | 27°F | 3.5" |
| Index | Lyons | Ohio | National |
| Air quality index | 39 | 40 | 42 |
| Pollution index | 2,143,190 | 4,472,386 | 2,726,193 |
| Measurement | Total |
| Days measured | 358 |
| Days with good air quality | 286 |
| Days with moderate air quality | 72 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.003% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.001% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Clayton, MI | 267 | 39 | 22.0% |
| Morenci, MI | 1,932 | 39 | 22.0% |
| Archbold, OH | 4,379 | 39 | 22.0% |
| Delta, OH | 2,838 | 39 | 22.0% |
| Hudson, MI | 2,419 | 39 | 22.0% |
| Lyons, OH | 658 | 39 | 22.0% |
| City | Population | Air Quality Index | National Avg. |
| Ona, FL | 658 | 36 | 28.0% |
| Melba, ID | 658 | 36 | 28.0% |
| Marengo, IN | 658 | 6 | 88.0% |
| Russell, MA | 658 | 40 | 20.0% |
| Marshall, NC | 658 | 44 | 12.0% |
| Lyons, OH | 658 | 39 | 22.0% |
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