| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 19°F | 37°F | 28°F | 2.8" |
| February | 19°F | 39°F | 29°F | 2.5" |
| March | 27°F | 49°F | 37°F | 3.0" |
| April | 38°F | 64°F | 50°F | 3.3" |
| May | 48°F | 74°F | 60°F | 3.2" |
| June | 57°F | 81°F | 69°F | 4.2" |
| July | 61°F | 86°F | 73°F | 3.7" |
| August | 59°F | 83°F | 71°F | 4.0" |
| September | 53°F | 77°F | 64°F | 3.5" |
| October | 43°F | 65°F | 53°F | 4.9" |
| November | 33°F | 53°F | 43°F | 2.6" |
| December | 25°F | 42°F | 33°F | 3.3" |
| Index | Union Dale | Pennsylvania | National |
| Air quality index | 38 | 45 | 42 |
| Pollution index | 1,248,250 | 4,584,805 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 329 |
| Days with moderate air quality | 36 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Carbondale, PA | 8,679 | 38 | 24.0% |
| Thompson, PA | 317 | 38 | 24.0% |
| Dalton, PA | 1,331 | 38 | 24.0% |
| Waymart, PA | 1,310 | 38 | 24.0% |
| Waverly, PA | 696 | 38 | 24.0% |
| Union Dale, PA | 174 | 38 | 24.0% |
| City | Population | Air Quality Index | National Avg. |
| Marshall, AK | 174 | 31 | 38.0% |
| Paint Rock, AL | 174 | 44 | 12.0% |
| Concord, AR | 174 | 45 | 10.0% |
| Makena, HI | 174 | 15 | 70.0% |
| Portsmouth, IA | 174 | 40 | 20.0% |
| Union Dale, PA | 174 | 38 | 24.0% |