| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 27°F | 45°F | 36°F | 5.4" |
| February | 24°F | 40°F | 31°F | 4.1" |
| March | 32°F | 52°F | 41°F | 6.0" |
| April | 41°F | 63°F | 52°F | 9.8" |
| May | 49°F | 74°F | 61°F | 5.0" |
| June | 62°F | 84°F | 73°F | 6.8" |
| July | 66°F | 87°F | 76°F | 5.2" |
| August | 65°F | 87°F | 75°F | 7.6" |
| September | 57°F | 83°F | 69°F | 1.3" |
| October | 52°F | 71°F | 61°F | 15.0" |
| November | 36°F | 57°F | 47°F | 4.8" |
| December | 29°F | 44°F | 36°F | 5.2" |
| Index | Voorhees | New Jersey | National |
| Air quality index | 51 | 45 | 42 |
| Pollution index | 7,605,180 | 7,246,891 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 180 |
| Days with moderate air quality | 169 |
| Days w/ poor A.Q. for sensitive groups | 16 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.080% |
| Carbon Tetrachloride | 0.030% |
| Lead | 0.050% |
| Mercury | 0.050% |
| City | Population | Air Quality Index | National Avg. |
| Hammonton, NJ | 14,046 | 40 | 20.0% |
| Williamstown, NJ | 14,161 | 40 | 20.0% |
| Chesilhurst, NJ | 1,440 | 40 | 20.0% |
| Clayton, NJ | 8,688 | 40 | 20.0% |
| Glassboro, NJ | 20,069 | 40 | 20.0% |
| Voorhees, NJ | 1,686 | 51 | 2.0% |
| City | Population | Air Quality Index | National Avg. |
| Bernice, LA | 1,686 | 35 | 30.0% |
| Hallsville, MO | 1,686 | 38 | 24.0% |
| Depoe Bay, OR | 1,686 | 17 | 66.0% |
| Yacolt, WA | 1,686 | 38 | 24.0% |
| Grant, AL | 1,685 | 44 | 12.0% |
| Voorhees, NJ | 1,686 | 51 | 2.0% |
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