| 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 | Bergenfield | New Jersey | National |
| Air quality index | 51 | 45 | 42 |
| Pollution index | 7,043,200 | 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 | 0.010% |
| Benzene | 0.050% |
| Carbon Tetrachloride | 0.020% |
| Lead | 0.030% |
| Mercury | 0.020% |
| City | Population | Air Quality Index | National Avg. |
| Pleasantville, NY | 7,256 | 43 | 14.0% |
| Thornwood, NY | 4,484 | 43 | 14.0% |
| Armonk, NY | 4,440 | 43 | 14.0% |
| Cresskill, NJ | 8,701 | 51 | 2.0% |
| New Milford, NJ | 16,477 | 51 | 2.0% |
| Bergenfield, NJ | 27,375 | 51 | 2.0% |
| City | Population | Air Quality Index | National Avg. |
| Gladstone, MO | 27,365 | 47 | 6.0% |
| Short Pump, VA | 27,385 | 44 | 12.0% |
| Anderson, SC | 27,387 | 31 | 38.0% |
| Oak Forest, IL | 27,403 | 55 | 10.0% |
| Huntley, IL | 27,413 | 42 | 16.0% |
| Bergenfield, NJ | 27,375 | 51 | 2.0% |
Here are the best places to live in New Jersey
See the best places to live in Bergenfield
Check out the 10 most dangerous cities in New Jersey
Most Dangerous States In The US