| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 25°F | 43°F | 34°F | 3.4" |
| February | 26°F | 44°F | 34°F | 2.8" |
| March | 33°F | 52°F | 41°F | 3.7" |
| April | 43°F | 63°F | 52°F | 3.7" |
| May | 52°F | 71°F | 61°F | 4.2" |
| June | 62°F | 81°F | 71°F | 4.7" |
| July | 69°F | 86°F | 77°F | 4.2" |
| August | 68°F | 85°F | 76°F | 4.8" |
| September | 61°F | 79°F | 69°F | 3.4" |
| October | 51°F | 68°F | 59°F | 4.8" |
| November | 39°F | 57°F | 48°F | 3.0" |
| December | 32°F | 48°F | 40°F | 4.9" |
| Index | Cedarhurst | New York | National |
| Air quality index | 51 | 43 | 42 |
| Pollution index | 20,796,900 | 6,179,275 | 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 | 0.060% |
| Benzene | 0.130% |
| Carbon Tetrachloride | 0.130% |
| Lead | 0.070% |
| Mercury | 0.060% |
| City | Population | Air Quality Index | National Avg. |
| Bethpage, NY | 18,012 | 51 | 2.0% |
| North Massapequa, NY | 18,239 | 51 | 2.0% |
| South Farmingdale, NY | 14,766 | 51 | 2.0% |
| Bellmore, NY | 15,887 | 51 | 2.0% |
| Merrick, NY | 20,594 | 51 | 2.0% |
| Cedarhurst, NY | 6,642 | 51 | 2.0% |
| City | Population | Air Quality Index | National Avg. |
| Pikeville, KY | 6,642 | 42 | 16.0% |
| Silsbee, TX | 6,642 | 45 | 10.0% |
| Strasburg, VA | 6,643 | 38 | 24.0% |
| Normandy Park, WA | 6,643 | 45 | 10.0% |
| Litchfield, MN | 6,640 | 32 | 36.0% |
| Cedarhurst, NY | 6,642 | 51 | 2.0% |
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