| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 26°F | 46°F | 36°F | 3.5" |
| February | 28°F | 48°F | 37°F | 3.1" |
| March | 38°F | 61°F | 49°F | 4.6" |
| April | 48°F | 73°F | 60°F | 6.3" |
| May | 57°F | 80°F | 68°F | 5.3" |
| June | 66°F | 88°F | 77°F | 4.5" |
| July | 69°F | 90°F | 79°F | 4.7" |
| August | 68°F | 90°F | 79°F | 4.2" |
| September | 61°F | 84°F | 72°F | 4.4" |
| October | 49°F | 73°F | 60°F | 4.4" |
| November | 37°F | 61°F | 48°F | 3.4" |
| December | 31°F | 49°F | 39°F | 5.1" |
| Index | Brooks | Kentucky | National |
| Air quality index | 49 | 45 | 42 |
| Pollution index | 10,162,700 | 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 | 0.060% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.050% |
| Mercury | 0.140% |
| City | Population | Air Quality Index | National Avg. |
| Muldraugh, KY | 1,078 | 39 | 22.0% |
| Fort Knox, KY | 8,865 | 39 | 22.0% |
| Brownsboro Village, KY | 342 | 49 | 2.0% |
| Hurstbourne Acres, KY | 1,995 | 49 | 2.0% |
| Louisville, KY | 618,733 | 49 | 2.0% |
| Brooks, KY | 2,223 | 49 | 2.0% |
| City | Population | Air Quality Index | National Avg. |
| Ludowici, GA | 2,223 | 39 | 22.0% |
| Fort Kent, ME | 2,223 | 31 | 38.0% |
| Saint-Blaise-sur-Richelieu, QC | 2,223 | n/a | |
| Constantine, MI | 2,222 | 37 | 26.0% |
| Esko, MN | 2,222 | 35 | 30.0% |
| Brooks, KY | 2,223 | 49 | 2.0% |
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