| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 24°F | 43°F | 33°F | 3.7" |
| February | 26°F | 46°F | 35°F | 3.3" |
| March | 36°F | 59°F | 47°F | 4.3" |
| April | 45°F | 70°F | 57°F | 5.9" |
| May | 54°F | 77°F | 65°F | 5.1" |
| June | 62°F | 85°F | 73°F | 4.7" |
| July | 66°F | 87°F | 76°F | 6.3" |
| August | 64°F | 87°F | 75°F | 2.8" |
| September | 57°F | 81°F | 69°F | 3.8" |
| October | 45°F | 70°F | 57°F | 4.0" |
| November | 35°F | 58°F | 45°F | 3.1" |
| December | 29°F | 48°F | 38°F | 4.7" |
| Index | Campbellsburg | Kentucky | National |
| Air quality index | 49 | 45 | 42 |
| Pollution index | 8,502,260 | 1,369,131 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 195 |
| Days with moderate air quality | 166 |
| Days w/ poor A.Q. for sensitive groups | 4 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.080% |
| Carbon Tetrachloride | 0.670% |
| Lead | 0.020% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Prestonville, KY | 184 | 35 | 30.0% |
| Hanover, IN | 3,418 | 35 | 30.0% |
| Milton, KY | 615 | 35 | 30.0% |
| Carrollton, KY | 3,806 | 35 | 30.0% |
| Buckner, KY | 5,640 | 49 | 2.0% |
| Campbellsburg, KY | 1,018 | 49 | 2.0% |
| City | Population | Air Quality Index | National Avg. |
| Cobden, IL | 1,018 | 44 | 12.0% |
| Greensburg, LA | 1,018 | 30 | 40.0% |
| Hi-Nella, NJ | 1,018 | 51 | 2.0% |
| Vienna, NJ | 1,018 | 34 | 32.0% |
| Northville village, NY | 1,018 | 41 | 18.0% |
| Campbellsburg, KY | 1,018 | 49 | 2.0% |
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