| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 27°F | 45°F | 35°F | 3.7" |
| February | 29°F | 47°F | 37°F | 2.9" |
| March | 39°F | 60°F | 48°F | 4.5" |
| April | 48°F | 71°F | 59°F | 6.3" |
| May | 57°F | 79°F | 68°F | 5.7" |
| June | 66°F | 87°F | 77°F | 5.3" |
| July | 69°F | 89°F | 79°F | 5.6" |
| August | 68°F | 89°F | 78°F | 3.7" |
| September | 61°F | 83°F | 71°F | 4.6" |
| October | 48°F | 71°F | 59°F | 4.4" |
| November | 38°F | 59°F | 48°F | 3.5" |
| December | 31°F | 48°F | 39°F | 4.8" |
| Index | Bloomfield | Kentucky | National |
| Air quality index | 49 | 45 | 42 |
| Pollution index | 306,537 | 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 | 0.000% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Bardstown, KY | 13,169 | 39 | 22.0% |
| Mackville, KY | 244 | 42 | 16.0% |
| Fairfield, KY | 185 | 49 | 2.0% |
| Taylorsville, KY | 1,671 | 49 | 2.0% |
| Mount Washington, KY | 14,699 | 49 | 2.0% |
| Bloomfield, KY | 1,064 | 49 | 2.0% |
| City | Population | Air Quality Index | National Avg. |
| Dallas City, IL | 1,064 | 29 | 42.0% |
| Memphis, MI | 1,064 | 56 | 12.0% |
| Southwest City, MO | 1,064 | 38 | 24.0% |
| Roan Mountain, TN | 1,064 | 26 | 48.0% |
| Redvers, SK | 1,064 | n/a | |
| Bloomfield, KY | 1,064 | 49 | 2.0% |
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