Louisville average temperature
| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | -1°F | 79°F | 37°F | 3.8" |
| February | 7°F | 71°F | 37°F | 2.8" |
| March | 14°F | 84°F | 48°F | 4.1" |
| April | 25°F | 88°F | 58°F | 5.1" |
| May | 36°F | 92°F | 66°F | 4.3" |
| June | 52°F | 95°F | 76°F | 4.7" |
| July | 55°F | 105°F | 77°F | 4.5" |
| August | 54°F | 102°F | 79°F | 4.1" |
| September | 45°F | 98°F | 72°F | 4.5" |
| October | 32°F | 92°F | 58°F | 4.8" |
| November | 16°F | 78°F | 48°F | 2.5" |
| December | 5°F | 72°F | 38°F | 3.8" |
In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
The highest average temperature in Louisville is August at 78.9 degrees. The coldest average temperature in Louisville is February at 37.1 degrees. The most monthly precipitation in Louisville occurs in April with 5.1 inches. The Louisville weather information is based on the average of the previous 3-7 years of data.
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Louisville air quality index & pollution index
| Index | Louisville | Kentucky | National |
| Air quality index | 55 | 45 | 50 |
| Pollution index | 10,162,700 | 5,332,315 | 5,072,052 |
In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
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The Louisville, KY air quality index is a median value which considers the most hazardous air pollutants. The Louisville, KY air quality index is 21.5% greater than the Kentucky average and 10.6% greater than the national average.
The Louisville, KY pollution index is the sum of the most hazardous air pollutants displayed in pounds. The Louisville, KY pollution index is 90.6% greater than the Kentucky average and 100.4% greater than the national average.
Air quality information
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 138 |
| Days with moderate air quality | 209 |
| Days w/ poor A.Q. for sensitive groups | 18 |
| Days with unhealthy air quality | |
Air pollution information
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.060% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.050% |
| Mercury | 0.140% |
Average monthly Louisville temperature with heat index
Louisville monthly precipitation with daily maximum
Louisville monthly snow depth with daily maximum
Louisville monthly wind speed information
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