| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 25°F | 41°F | 33°F | 2.7" |
| February | 25°F | 42°F | 33°F | 2.3" |
| March | 32°F | 50°F | 40°F | 3.3" |
| April | 42°F | 60°F | 51°F | 3.7" |
| May | 52°F | 70°F | 60°F | 3.4" |
| June | 61°F | 78°F | 69°F | 4.3" |
| July | 68°F | 84°F | 76°F | 3.2" |
| August | 66°F | 83°F | 74°F | 3.4" |
| September | 60°F | 76°F | 68°F | 3.2" |
| October | 50°F | 66°F | 57°F | 3.5" |
| November | 39°F | 55°F | 47°F | 2.5" |
| December | 32°F | 46°F | 39°F | 4.5" |
| Index | Wyandanch | New York | National |
| Air quality index | 51 | 43 | 42 |
| Pollution index | 39,208,800 | 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 | 0.320% |
| Carbon Tetrachloride | 0.020% |
| Lead | 0.320% |
| Mercury | 0.130% |
| City | Population | Air Quality Index | National Avg. |
| Ocean Beach, NY | 31 | 43 | 14.0% |
| Dix Hills, NY | 23,995 | 43 | 14.0% |
| Commack, NY | 36,903 | 43 | 14.0% |
| Fort Salonga, NY | 9,930 | 43 | 14.0% |
| Huntington Bay, NY | 1,614 | 43 | 14.0% |
| Wyandanch, NY | 11,632 | 51 | 2.0% |
| City | Population | Air Quality Index | National Avg. |
| Largo, MD | 11,633 | 47 | 6.0% |
| Four Corners, TX | 11,634 | 52 | 4.0% |
| Lethbridge County, AB | 11,635 | n/a | |
| Beachwood, OH | 11,627 | 50 | = 100 |
| Mango, FL | 11,638 | 43 | 14.0% |
| Wyandanch, NY | 11,632 | 51 | 2.0% |
Here are the best places to live in New York
Safest Cities In The US
Most Dangerous States In The US
Check out the 10 most dangerous cities in New York