| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 22°F | 40°F | 30°F | 3.2" |
| February | 22°F | 41°F | 31°F | 2.6" |
| March | 32°F | 54°F | 42°F | 4.4" |
| April | 42°F | 68°F | 55°F | 3.8" |
| May | 52°F | 76°F | 64°F | 3.6" |
| June | 61°F | 85°F | 73°F | 4.8" |
| July | 65°F | 87°F | 76°F | 4.8" |
| August | 64°F | 86°F | 75°F | 3.7" |
| September | 57°F | 80°F | 68°F | 3.6" |
| October | 45°F | 68°F | 56°F | 3.9" |
| November | 34°F | 56°F | 44°F | 2.7" |
| December | 27°F | 44°F | 35°F | 3.9" |
| Index | Pickerington | 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. |
| Granville, OH | 5,984 | 41 | 18.0% |
| Granville South, OH | 1,273 | 41 | 18.0% |
| Lancaster, OH | 41,994 | 46 | 8.0% |
| Gahanna, OH | 36,217 | 46 | 8.0% |
| New Albany, OH | 11,385 | 46 | 8.0% |
| Pickerington, OH | 22,095 | 46 | 8.0% |
| City | Population | Air Quality Index | National Avg. |
| Bonney Lake, WA | 22,079 | 45 | 10.0% |
| Biddeford, ME | 22,077 | 40 | 20.0% |
| Huntsville, ON | 22,073 | n/a | |
| Sedalia, MO | 22,119 | 38 | 24.0% |
| Montclair, VA | 22,122 | 47 | 6.0% |
| Pickerington, OH | 22,095 | 46 | 8.0% |