| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 25°F | 42°F | 33°F | 5.8" |
| February | 25°F | 44°F | 34°F | 4.0" |
| March | 32°F | 54°F | 42°F | 6.4" |
| April | 42°F | 66°F | 53°F | 5.8" |
| May | 52°F | 75°F | 63°F | 7.4" |
| June | 61°F | 83°F | 71°F | 6.9" |
| July | 66°F | 88°F | 76°F | 8.6" |
| August | 64°F | 85°F | 74°F | 8.3" |
| September | 58°F | 79°F | 67°F | 7.4" |
| October | 47°F | 68°F | 57°F | 7.7" |
| November | 37°F | 57°F | 46°F | 5.4" |
| December | 30°F | 48°F | 39°F | 7.4" |
| Index | Fieldsboro | New Jersey | National |
| Air quality index | 41 | 45 | 42 |
| Pollution index | 10,942,500 | 7,246,891 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 280 |
| Days with moderate air quality | 83 |
| Days w/ poor A.Q. for sensitive groups | 2 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.110% |
| Carbon Tetrachloride | 0.040% |
| Lead | 0.020% |
| Mercury | 0.005% |
| City | Population | Air Quality Index | National Avg. |
| New Egypt, NJ | 2,187 | 41 | 18.0% |
| Croydon, PA | 9,693 | 41 | 18.0% |
| Penndel, PA | 2,928 | 41 | 18.0% |
| Browns Mills, NJ | 10,228 | 41 | 18.0% |
| Hamilton Square, NJ | 11,526 | 41 | 18.0% |
| Fieldsboro, NJ | 761 | 41 | 18.0% |
| City | Population | Air Quality Index | National Avg. |
| Manokotak, AK | 761 | 31 | 38.0% |
| Independence, CA | 761 | 47 | 6.0% |
| Duck Key, FL | 761 | 41 | 18.0% |
| Ventura, IA | 761 | 15 | 70.0% |
| Challis, ID | 761 | 36 | 28.0% |
| Fieldsboro, NJ | 761 | 41 | 18.0% |
Here are the best places to live in New Jersey
Check out the 10 most dangerous cities in New Jersey
See the best places to live in Fieldsboro
Safest States In The US