| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 22°F | 42°F | 32°F | 3.4" |
| February | 23°F | 44°F | 33°F | 3.1" |
| March | 33°F | 57°F | 44°F | 4.6" |
| April | 43°F | 69°F | 56°F | 5.0" |
| May | 52°F | 77°F | 64°F | 4.0" |
| June | 61°F | 85°F | 73°F | 5.2" |
| July | 65°F | 87°F | 76°F | 4.0" |
| August | 64°F | 88°F | 76°F | 3.0" |
| September | 57°F | 81°F | 69°F | 4.1" |
| October | 45°F | 69°F | 57°F | 4.1" |
| November | 34°F | 57°F | 45°F | 3.5" |
| December | 27°F | 45°F | 36°F | 4.5" |
| Index | Hidden Valley | Indiana | National |
| Air quality index | 54 | 56 | 42 |
| Pollution index | 23,937,200 | 2,719,453 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 139 |
| Days with moderate air quality | 206 |
| Days w/ poor A.Q. for sensitive groups | 20 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.500% |
| Benzene | 0.180% |
| Carbon Tetrachloride | 0.110% |
| Lead | 0.250% |
| Mercury | 0.060% |
| City | Population | Air Quality Index | National Avg. |
| St. Leon, IN | 1,041 | 54 | 8.0% |
| Hebron, KY | 6,845 | 54 | 8.0% |
| Belleview, KY | 183 | 54 | 8.0% |
| Florence, KY | 32,721 | 54 | 8.0% |
| Bright, IN | 5,801 | 54 | 8.0% |
| Hidden Valley, IN | 5,075 | 54 | 8.0% |
| City | Population | Air Quality Index | National Avg. |
| Vinton, IA | 5,075 | 39 | 22.0% |
| Paxtonia, PA | 5,075 | 44 | 12.0% |
| Bowie, TX | 5,075 | 26 | 48.0% |
| Creve Coeur, IL | 5,074 | 41 | 18.0% |
| Timber Pines, FL | 5,076 | 30 | 40.0% |
| Hidden Valley, IN | 5,075 | 54 | 8.0% |
Here are the best places to live in Indiana
See the best places to live in Hidden Valley
Check out the 10 safest cities in Indiana
Most Dangerous States In The US