| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 17°F | 36°F | 26°F | 2.9" |
| February | 17°F | 38°F | 27°F | 2.5" |
| March | 27°F | 48°F | 36°F | 3.2" |
| April | 38°F | 65°F | 51°F | 4.6" |
| May | 47°F | 74°F | 61°F | 3.5" |
| June | 56°F | 82°F | 68°F | 7.2" |
| July | 59°F | 84°F | 71°F | 4.6" |
| August | 57°F | 84°F | 70°F | 5.3" |
| September | 52°F | 78°F | 64°F | 5.4" |
| October | 44°F | 68°F | 54°F | 4.5" |
| November | 31°F | 53°F | 41°F | 3.1" |
| December | 26°F | 44°F | 35°F | 4.0" |
| Index | Grove City | Pennsylvania | National |
| Air quality index | 31 | 45 | 42 |
| Pollution index | 601,986 | 4,584,805 | 2,726,193 |
| Measurement | Total |
| Days measured | 361 |
| Days with good air quality | 356 |
| Days with moderate air quality | 5 |
| 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 | 0.010% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| South New Castle, PA | 916 | 31 | 38.0% |
| Lake Arthur Estates, PA | 466 | 31 | 38.0% |
| Cherry Valley, PA | 67 | 31 | 38.0% |
| Slippery Rock University, PA | 2,503 | 31 | 38.0% |
| Fredonia, PA | 320 | 31 | 38.0% |
| Grove City, PA | 7,829 | 31 | 38.0% |
| City | Population | Air Quality Index | National Avg. |
| Southgate, ON | 7,828 | n/a | |
| Blair, NE | 7,830 | 40 | 20.0% |
| Hitchcock, TX | 7,831 | 52 | 4.0% |
| Raritan, NJ | 7,833 | 41 | 18.0% |
| Centerville, GA | 7,821 | 38 | 24.0% |
| Grove City, PA | 7,829 | 31 | 38.0% |
Here are the best places to live in Pennsylvania
Most Dangerous States In The US
See the best places to live in Grove City
These are the largest cities in Pennsylvania