| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 23°F | 41°F | 32°F | 2.9" |
| February | 23°F | 42°F | 32°F | 2.8" |
| March | 32°F | 53°F | 42°F | 3.4" |
| April | 42°F | 66°F | 53°F | 4.0" |
| May | 51°F | 75°F | 63°F | 4.0" |
| June | 61°F | 82°F | 71°F | 4.7" |
| July | 66°F | 87°F | 76°F | 4.9" |
| August | 63°F | 84°F | 73°F | 5.2" |
| September | 56°F | 78°F | 67°F | 4.7" |
| October | 45°F | 67°F | 56°F | 4.5" |
| November | 35°F | 55°F | 45°F | 2.6" |
| December | 29°F | 46°F | 37°F | 4.2" |
| Index | East Greenville | Pennsylvania | National |
| Air quality index | 42 | 45 | 42 |
| Pollution index | 8,206,310 | 4,584,805 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 275 |
| Days with moderate air quality | 86 |
| Days w/ poor A.Q. for sensitive groups | 4 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.260% |
| Benzene | 0.060% |
| Carbon Tetrachloride | 0.020% |
| Lead | 0.160% |
| Mercury | 1.120% |
| City | Population | Air Quality Index | National Avg. |
| Topton, PA | 2,204 | 42 | 16.0% |
| Cetronia, PA | 2,844 | 42 | 16.0% |
| Trexlertown, PA | 2,120 | 42 | 16.0% |
| Kutztown, PA | 5,051 | 42 | 16.0% |
| Alburtis, PA | 2,604 | 42 | 16.0% |
| East Greenville, PA | 2,945 | 42 | 16.0% |
| City | Population | Air Quality Index | National Avg. |
| Boutte, LA | 2,944 | 41 | 18.0% |
| Cumberland Center, ME | 2,944 | 40 | 20.0% |
| Palmer Lake, CO | 2,946 | 45 | 10.0% |
| Atoka, OK | 2,946 | 325 | 550.0% |
| White Mountain Lake, AZ | 2,947 | 44 | 12.0% |
| East Greenville, PA | 2,945 | 42 | 16.0% |
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