| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 25°F | 41°F | 32°F | 3.2" |
| February | 25°F | 40°F | 32°F | 3.0" |
| March | 33°F | 52°F | 42°F | 3.2" |
| April | 44°F | 65°F | 54°F | 4.0" |
| May | 52°F | 74°F | 62°F | 4.0" |
| June | 64°F | 83°F | 73°F | 5.1" |
| July | 67°F | 86°F | 76°F | 5.1" |
| August | 67°F | 85°F | 75°F | 3.5" |
| September | 59°F | 77°F | 67°F | 5.2" |
| October | 47°F | 66°F | 55°F | 4.2" |
| November | 38°F | 55°F | 45°F | 3.2" |
| December | 28°F | 42°F | 35°F | 5.1" |
| Index | Maytown | Pennsylvania | National |
| Air quality index | 41 | 45 | 42 |
| Pollution index | 11,091,200 | 4,584,805 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 299 |
| Days with moderate air quality | 66 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.140% |
| Carbon Tetrachloride | 0.030% |
| Lead | 0.310% |
| Mercury | 0.004% |
| City | Population | Air Quality Index | National Avg. |
| Jacobus, PA | 2,510 | 41 | 18.0% |
| Red Lion, PA | 6,334 | 41 | 18.0% |
| Valley View, PA | 2,956 | 41 | 18.0% |
| East York, PA | 8,984 | 41 | 18.0% |
| Marietta, PA | 2,616 | 41 | 18.0% |
| Maytown, PA | 4,130 | 41 | 18.0% |
| City | Population | Air Quality Index | National Avg. |
| Mineral Ridge, OH | 4,130 | 42 | 16.0% |
| Dyersville, IA | 4,131 | 29 | 42.0% |
| Pleasant Run Farm, OH | 4,131 | 54 | 8.0% |
| West Milwaukee, WI | 4,128 | 44 | 12.0% |
| Goodview, MN | 4,132 | 15 | 70.0% |
| Maytown, PA | 4,130 | 41 | 18.0% |
Here are the best places to live in Pennsylvania
These are the 10 cheapest cities in Pennsylvania
See the best places to live in Maytown
These are the largest cities in Pennsylvania