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| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 25°F | 42°F | 33°F | 4.2" |
| February | 25°F | 43°F | 34°F | 3.6" |
| March | 33°F | 52°F | 42°F | 3.9" |
| April | 44°F | 66°F | 54°F | 4.4" |
| May | 53°F | 75°F | 63°F | 4.9" |
| June | 63°F | 84°F | 72°F | 5.3" |
| July | 69°F | 89°F | 78°F | 4.5" |
| August | 66°F | 86°F | 76°F | 5.0" |
| September | 60°F | 81°F | 69°F | 3.5" |
| October | 49°F | 69°F | 58°F | 4.8" |
| November | 38°F | 58°F | 47°F | 3.1" |
| December | 31°F | 47°F | 38°F | 5.0" |
| Index | Wallington | New Jersey | National |
| Air quality index | 51 | 45 | 42 |
| Pollution index | 2,548,930 | 7,246,891 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 169 |
| Days with moderate air quality | 180 |
| Days w/ poor A.Q. for sensitive groups | 16 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.003% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.003% |
| Lead | 0.020% |
| Mercury | 0.002% |
| City | Population | Air Quality Index | National Avg. |
| Hillsdale, NJ | 10,317 | 51 | 2.0% |
| Old Tappan, NJ | 5,924 | 51 | 2.0% |
| Waldwick, NJ | 10,051 | 51 | 2.0% |
| Irvington, NY | 6,494 | 51 | 2.0% |
| Englewood, NJ | 28,390 | 51 | 2.0% |
| Wallington, NJ | 11,553 | 51 | 2.0% |
| City | Population | Air Quality Index | National Avg. |
| Mountain Top, PA | 11,553 | 38 | 24.0% |
| Douglas, GA | 11,556 | 26 | 48.0% |
| Somerset, KY | 11,548 | 40 | 20.0% |
| Valley Falls, RI | 11,548 | 44 | 12.0% |
| Muscoy, CA | 11,546 | 89 | 78.0% |
| Wallington, NJ | 11,553 | 51 | 2.0% |
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