| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 17°F | 35°F | 26°F | 2.9" |
| February | 18°F | 37°F | 27°F | 2.4" |
| March | 28°F | 51°F | 39°F | 3.1" |
| April | 38°F | 65°F | 51°F | 4.0" |
| May | 49°F | 75°F | 62°F | 4.9" |
| June | 59°F | 84°F | 71°F | 5.1" |
| July | 62°F | 86°F | 74°F | 4.1" |
| August | 60°F | 84°F | 72°F | 4.4" |
| September | 53°F | 79°F | 65°F | 3.3" |
| October | 42°F | 67°F | 53°F | 2.9" |
| November | 31°F | 53°F | 42°F | 3.2" |
| December | 23°F | 39°F | 31°F | 3.1" |
| Index | Huntington | Indiana | National |
| Air quality index | 31 | 56 | 50 |
| Pollution index | 1,644,960 | 3,773,618 | 5,066,862 |
| Measurement | Total |
| Days measured | 355 |
| Days with good air quality | 345 |
| Days with moderate air quality | 10 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.040% |
| Mercury | 0.000% |
| City, State | Population | Air Quality Index | National Avg. |
| Mount Etna, IN | 116 | 31 | 38% |
| Andrews, IN | 939 | 31 | 38% |
| Uniondale, IN | 309 | 31 | 38% |
| Warren, IN | 1,430 | 31 | 38% |
| Roanoke, IN | 1,754 | 31 | 38% |
| Huntington, IN | 17,340 | 31 | 38% |
| City, State | Population | Air Quality Index | National Avg. |
| Bristol, VA | 17,340 | 45 | 10% |
| Willimantic, CT | 17,339 | 33 | 34% |
| Beckley, WV | 17,348 | 295 | 490% |
| Anoka, MN | 17,325 | 46 | 8% |
| Marco Island, FL | 17,361 | 34 | 32% |
| Huntington, IN | 17,340 | 31 | 38% |
Here are the best places to live in Indiana
Top 10 best public schools in Huntington
These are the 10 most affordable cities in Indiana
10 Best cities in Indiana for employment