| 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 | Spring Valley | 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. |
| Memphis, IN | 866 | 49 | 2.0% |
| Bellewood, KY | 218 | 49 | 2.0% |
| Hurstbourne, KY | 4,402 | 49 | 2.0% |
| Lincolnshire, KY | 128 | 49 | 2.0% |
| Norwood, KY | 413 | 49 | 2.0% |
| Spring Valley, KY | 819 | 49 | 2.0% |
| City | Population | Air Quality Index | National Avg. |
| Rockport, AR | 819 | 38 | 24.0% |
| Milltown, IN | 819 | 49 | 2.0% |
| St. Mary of the Woods, IN | 819 | 45 | 10.0% |
| Aquasco, MD | 819 | 47 | 6.0% |
| Hills, MN | 819 | 36 | 28.0% |
| Spring Valley, KY | 819 | 49 | 2.0% |
Here are the best places to live in Kentucky
These are the 10 cheapest cities in Kentucky
These are the largest cities in Kentucky
See the best places to live in Spring Valley