| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 23°F | 40°F | 31°F | 2.6" |
| February | 23°F | 42°F | 32°F | 2.4" |
| March | 31°F | 53°F | 41°F | 3.1" |
| April | 42°F | 66°F | 54°F | 3.6" |
| May | 51°F | 75°F | 63°F | 3.7" |
| June | 61°F | 84°F | 72°F | 4.8" |
| July | 66°F | 88°F | 77°F | 5.0" |
| August | 64°F | 85°F | 74°F | 4.7" |
| September | 57°F | 79°F | 68°F | 4.4" |
| October | 46°F | 67°F | 56°F | 4.8" |
| November | 35°F | 55°F | 45°F | 2.7" |
| December | 29°F | 45°F | 36°F | 3.8" |
| Index | Womelsdorf | Pennsylvania | National |
| Air quality index | 42 | 45 | 42 |
| Pollution index | 11,091,200 | 4,584,805 | 2,726,193 |
| Measurement | Total |
| Days measured | 360 |
| Days with good air quality | 278 |
| Days with moderate air quality | 78 |
| Days w/ poor A.Q. for sensitive groups | 4 |
| 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. |
| Pine Grove, PA | 2,088 | 42 | 16.0% |
| West Hamburg, PA | 2,210 | 42 | 16.0% |
| Dauberville, PA | 799 | 42 | 16.0% |
| Leesport, PA | 2,230 | 42 | 16.0% |
| Cornwall, PA | 4,319 | 42 | 16.0% |
| Womelsdorf, PA | 2,886 | 42 | 16.0% |
| City | Population | Air Quality Index | National Avg. |
| Marion, KY | 2,885 | 44 | 12.0% |
| Clinton, MI | 2,885 | 39 | 22.0% |
| Chincoteague, VA | 2,885 | 36 | 28.0% |
| Newton, IL | 2,884 | 40 | 20.0% |
| Cordaville, MA | 2,884 | 40 | 20.0% |
| Womelsdorf, PA | 2,886 | 42 | 16.0% |
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