| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 22°F | 38°F | 30°F | 3.2" |
| February | 23°F | 39°F | 30°F | 2.2" |
| March | 32°F | 52°F | 41°F | 3.4" |
| April | 43°F | 65°F | 53°F | 3.4" |
| May | 52°F | 74°F | 62°F | 4.2" |
| June | 60°F | 81°F | 70°F | 5.1" |
| July | 64°F | 84°F | 73°F | 5.1" |
| August | 63°F | 82°F | 72°F | 4.1" |
| September | 56°F | 77°F | 66°F | 3.1" |
| October | 46°F | 65°F | 54°F | 3.8" |
| November | 35°F | 54°F | 44°F | 2.8" |
| December | 28°F | 43°F | 35°F | 3.7" |
| Index | Belle Vernon | Pennsylvania | National |
| Air quality index | 56 | 45 | 42 |
| Pollution index | 889,808 | 4,584,805 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 129 |
| Days with moderate air quality | 220 |
| Days w/ poor A.Q. for sensitive groups | 12 |
| Days with unhealthy air quality | 4 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.030% |
| Mercury | 0.030% |
| City | Population | Air Quality Index | National Avg. |
| Grindstone, PA | 818 | 36 | 28.0% |
| Rowes Run, PA | 587 | 36 | 28.0% |
| West Brownsville, PA | 1,121 | 36 | 28.0% |
| Oliver, PA | 2,579 | 36 | 28.0% |
| Dry Tavern, PA | 551 | 36 | 28.0% |
| Belle Vernon, PA | 952 | 56 | 12.0% |
| City | Population | Air Quality Index | National Avg. |
| Wakefield, KS | 952 | 32 | 36.0% |
| Somerset, MD | 952 | 47 | 6.0% |
| Castile, NY | 952 | 37 | 26.0% |
| Alcester, SD | 952 | 36 | 28.0% |
| Centerville, SD | 952 | 36 | 28.0% |
| Belle Vernon, PA | 952 | 56 | 12.0% |
Here are the best places to live in Pennsylvania
Top 10 cities in Pennsylvania with the best education system
These are the 10 most affordable cities in Pennsylvania
Top 10 best public schools in Belle Vernon