| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 23°F | 40°F | 31°F | 3.0" |
| February | 23°F | 42°F | 32°F | 2.9" |
| March | 31°F | 52°F | 41°F | 3.5" |
| April | 42°F | 65°F | 52°F | 3.9" |
| May | 51°F | 74°F | 62°F | 4.0" |
| June | 60°F | 82°F | 71°F | 4.9" |
| July | 66°F | 87°F | 76°F | 4.9" |
| August | 63°F | 84°F | 73°F | 4.9" |
| September | 57°F | 78°F | 67°F | 3.7" |
| October | 46°F | 67°F | 56°F | 4.2" |
| November | 36°F | 55°F | 45°F | 2.8" |
| December | 29°F | 45°F | 36°F | 4.4" |
| Index | Brookdale | 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. |
| Allendale, NJ | 6,757 | 51 | 2.0% |
| Ho-Ho-Kus, NJ | 4,096 | 51 | 2.0% |
| Pompton Lakes, NJ | 10,998 | 51 | 2.0% |
| Woodcliff Lake, NJ | 5,836 | 51 | 2.0% |
| Elmwood Park, NJ | 20,019 | 51 | 2.0% |
| Brookdale, NJ | 9,604 | 51 | 2.0% |
| City | Population | Air Quality Index | National Avg. |
| St. Pete Beach, FL | 9,603 | 38 | 24.0% |
| Conning Towers Nautilus Park, CT | 9,606 | 37 | 26.0% |
| Rainbow City, AL | 9,601 | 43 | 14.0% |
| Picnic Point, WA | 9,607 | 45 | 10.0% |
| Alexandria, KY | 9,600 | 54 | 8.0% |
| Brookdale, NJ | 9,604 | 51 | 2.0% |
Here are the best places to live in New Jersey
Check out the 10 most dangerous cities in New Jersey
Safest Cities In The US
Check out the 10 safest cities in New Jersey