| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 32°F | 46°F | 39°F | 6.7" |
| February | 28°F | 44°F | 36°F | 4.3" |
| March | 40°F | 60°F | 49°F | 4.9" |
| April | 47°F | 68°F | 57°F | 5.8" |
| May | 56°F | 78°F | 67°F | 6.0" |
| June | 66°F | 86°F | 75°F | 5.9" |
| July | 68°F | 86°F | 77°F | 8.8" |
| August | 71°F | 92°F | 81°F | 12.6" |
| September | 63°F | 85°F | 73°F | 4.4" |
| October | 52°F | 73°F | 61°F | 13.9" |
| November | 39°F | 60°F | 48°F | 7.1" |
| December | 30°F | 46°F | 37°F | 7.5" |
| Index | Radcliff | Kentucky | National |
| Air quality index | 39 | 45 | 42 |
| Pollution index | 10,162,700 | 1,369,131 | 2,726,193 |
| Measurement | Total |
| Days measured | 363 |
| Days with good air quality | 318 |
| Days with moderate air quality | 45 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.060% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.050% |
| Mercury | 0.140% |
| City | Population | Air Quality Index | National Avg. |
| Mauckport, IN | 32 | 39 | 22.0% |
| Fort Knox, KY | 8,865 | 39 | 22.0% |
| Cecilia, KY | 552 | 39 | 22.0% |
| Brandenburg, KY | 2,874 | 39 | 22.0% |
| Muldraugh, KY | 1,078 | 39 | 22.0% |
| Radcliff, KY | 22,796 | 39 | 22.0% |
| City | Population | Air Quality Index | National Avg. |
| Hastings, MN | 22,796 | 37 | 26.0% |
| Winter Gardens, CA | 22,785 | 64 | 28.0% |
| Granite Bay, CA | 22,818 | 52 | 4.0% |
| Keene, NH | 22,823 | 34 | 32.0% |
| Wilmot, ON | 22,827 | n/a | |
| Radcliff, KY | 22,796 | 39 | 22.0% |
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