| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 18°F | 33°F | 25°F | 2.8" |
| February | 18°F | 34°F | 25°F | 2.2" |
| March | 27°F | 46°F | 35°F | 3.3" |
| April | 38°F | 61°F | 48°F | 3.6" |
| May | 47°F | 70°F | 58°F | 4.0" |
| June | 56°F | 77°F | 66°F | 5.4" |
| July | 59°F | 81°F | 70°F | 4.1" |
| August | 58°F | 79°F | 68°F | 4.3" |
| September | 52°F | 73°F | 62°F | 3.5" |
| October | 42°F | 61°F | 51°F | 4.2" |
| November | 32°F | 50°F | 40°F | 3.2" |
| December | 24°F | 38°F | 30°F | 3.6" |
| Index | Marion Center | Pennsylvania | National |
| Air quality index | 38 | 45 | 42 |
| Pollution index | 2,970,510 | 4,584,805 | 2,726,193 |
| Measurement | Total |
| Days measured | 364 |
| Days with good air quality | 337 |
| Days with moderate air quality | 27 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.050% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.650% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Punxsutawney, PA | 5,878 | 33 | 34.0% |
| Burnside, PA | 180 | 33 | 34.0% |
| Big Run, PA | 419 | 33 | 34.0% |
| Glen Campbell, PA | 199 | 33 | 34.0% |
| Rossiter, PA | 774 | 33 | 34.0% |
| Marion Center, PA | 474 | 38 | 24.0% |
| City | Population | Air Quality Index | National Avg. |
| Bristow Cove, AL | 474 | 43 | 14.0% |
| Orland, IN | 474 | 37 | 26.0% |
| Waubun, MN | 474 | 33 | 34.0% |
| Delta, MO | 474 | 44 | 12.0% |
| Lanagan, MO | 474 | 38 | 24.0% |
| Marion Center, PA | 474 | 38 | 24.0% |