| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | -10°F | 70°F | 31°F | 3.3" |
| February | -6°F | 66°F | 29°F | 2.2" |
| March | 6°F | 78°F | 39°F | 3.0" |
| April | 23°F | 88°F | 52°F | 3.1" |
| May | 32°F | 91°F | 60°F | 3.2" |
| June | 42°F | 91°F | 69°F | 3.9" |
| July | 48°F | 93°F | 72°F | 3.7" |
| August | 50°F | 96°F | 72°F | 3.6" |
| September | 39°F | 91°F | 65°F | 2.2" |
| October | 26°F | 88°F | 53°F | 3.1" |
| November | 12°F | 73°F | 44°F | 2.4" |
| December | 1°F | 70°F | 33°F | 3.1" |
| Index | Rennerdale | Pennsylvania | National |
| Air quality index | 56 | 45 | 50 |
| Pollution index | 1,675,060 | 4,327,992 | 5,066,862 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 123 |
| Days with moderate air quality | 224 |
| Days w/ poor A.Q. for sensitive groups | 17 |
| Days with unhealthy air quality | 1 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.001% |
| Mercury | 0.000% |
| City, State | Population | Air Quality Index | National Avg. |
| Aliquippa, PA | 9,258 | 6 | 88% |
| Cross Creek, PA | 140 | 47 | 6% |
| Wolfdale, PA | 3,098 | 47 | 6% |
| Bulger, PA | 307 | 47 | 6% |
| Clinton, PA | 589 | 47 | 6% |
| Rennerdale, PA | 849 | 56 | 12% |
| City, State | Population | Air Quality Index | National Avg. |
| Fordland, MO | 849 | 39 | 22% |
| Hostetter, PA | 849 | 32 | 36% |
| Riceville, TN | 849 | 3 | 94% |
| Ouray, CO | 849 | 43 | 14% |
| Old Field, NY | 849 | 47 | 6% |
| Rennerdale, PA | 849 | 56 | 12% |