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| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 21°F | 37°F | 29°F | 1.9" |
| February | 21°F | 39°F | 29°F | 1.9" |
| March | 32°F | 53°F | 41°F | 3.6" |
| April | 42°F | 66°F | 53°F | 3.3" |
| May | 52°F | 75°F | 63°F | 3.5" |
| June | 60°F | 83°F | 71°F | 5.3" |
| July | 64°F | 85°F | 74°F | 4.3" |
| August | 62°F | 84°F | 73°F | 2.7" |
| September | 55°F | 78°F | 66°F | 3.7" |
| October | 44°F | 66°F | 54°F | 3.3" |
| November | 33°F | 54°F | 43°F | 2.2" |
| December | 27°F | 42°F | 34°F | 3.0" |
| Index | Dublin | Ohio | National |
| Air quality index | 46 | 40 | 42 |
| Pollution index | 21,574,800 | 4,472,386 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 237 |
| Days with moderate air quality | 127 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.030% |
| Benzene | 0.230% |
| Carbon Tetrachloride | 0.100% |
| Lead | 0.190% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Plumwood, OH | 240 | 45 | 10.0% |
| Columbus, OH | 889,079 | 46 | 8.0% |
| Huber Ridge, OH | 4,213 | 46 | 8.0% |
| Plain City, OH | 3,831 | 46 | 8.0% |
| Upper Arlington, OH | 35,364 | 46 | 8.0% |
| Dublin, OH | 47,824 | 46 | 8.0% |
| City | Population | Air Quality Index | National Avg. |
| Minot, ND | 47,834 | 36 | 28.0% |
| Covina, CA | 47,787 | 89 | 78.0% |
| Roswell, NM | 47,751 | 15 | 70.0% |
| Monroe, LA | 47,906 | 34 | 32.0% |
| Cornwall, ON | 47,736 | n/a | |
| Dublin, OH | 47,824 | 46 | 8.0% |
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