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| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 24°F | 43°F | 33°F | 3.8" |
| February | 25°F | 45°F | 34°F | 3.3" |
| March | 32°F | 54°F | 42°F | 3.9" |
| April | 43°F | 67°F | 54°F | 4.1" |
| May | 53°F | 76°F | 63°F | 4.5" |
| June | 63°F | 84°F | 73°F | 5.5" |
| July | 69°F | 90°F | 79°F | 4.4" |
| August | 67°F | 87°F | 77°F | 4.8" |
| September | 60°F | 81°F | 70°F | 3.2" |
| October | 49°F | 70°F | 59°F | 5.1" |
| November | 38°F | 58°F | 48°F | 3.3" |
| December | 31°F | 48°F | 39°F | 5.0" |
| Index | Liberty Park | Jersey City | New Jersey |
| Air quality index | 51 | 51 | 45 |
| Pollution index | 1,852,860 | 7,391,620 | 7,246,891 |
| 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 | 0.070% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.040% |
| Lead | 0.020% |
| Mercury | 0.060% |
| City | Population | Air Quality Index | National Avg. |
| Englewood Cliffs, NJ | 5,517 | 51 | 2.0% |
| Singac, NJ | 4,170 | 51 | 2.0% |
| Pelham, NY | 7,190 | 51 | 2.0% |
| Clifton, NJ | 87,331 | 51 | 2.0% |
| Leonia, NJ | 9,324 | 51 | 2.0% |
| Jersey City, NJ | 268,546 | 51 | 2.0% |
| City | Population | Air Quality Index | National Avg. |
| Laredo, TX | 268,554 | 41 | 18.0% |
| Chandler, AZ | 266,863 | 74 | 48.0% |
| Madison, WI | 266,829 | 39 | 22.0% |
| Lubbock, TX | 266,541 | 25 | 50.0% |
| St. Petersburg, FL | 271,787 | 43 | 14.0% |
| Jersey City, NJ | 268,546 | 51 | 2.0% |
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