Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 31°F | 39°F | 36°F | 4.2" |
February | 30°F | 40°F | 35°F | 3.0" |
March | 36°F | 46°F | 41°F | 6.5" |
April | 45°F | 56°F | 51°F | 7.6" |
May | 55°F | 65°F | 60°F | 6.6" |
June | 63°F | 73°F | 68°F | 3.1" |
July | 69°F | 79°F | 75°F | 5.8" |
August | 67°F | 78°F | 73°F | 6.3" |
September | 63°F | 72°F | 68°F | 8.5" |
October | 54°F | 63°F | 59°F | 13.5" |
November | 44°F | 53°F | 49°F | 7.3" |
December | 35°F | 44°F | 40°F | 6.0" |
Index | Shelter Island Heights | New York | National |
Air quality index | 41 | 43 | 42 |
Pollution index | 4,117,250 | 6,179,275 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 280 |
Days with moderate air quality | 71 |
Days w/ poor A.Q. for sensitive groups | 12 |
Days with unhealthy air quality | 2 |
Pollutant | Total |
Arsenic | 0.010% |
Benzene | 0.050% |
Carbon Tetrachloride | 0.010% |
Lead | 0.010% |
Mercury | 0.010% |
City | Population | Air Quality Index | National Avg. |
East Marion, NY | 1,144 | 37 | 26.0% |
Sag Harbor, NY | 1,959 | 37 | 26.0% |
Wainscott, NY | 342 | 37 | 26.0% |
Fenwick, CT | 44 | 37 | 26.0% |
Amagansett, NY | 510 | 37 | 26.0% |
Shelter Island Heights, NY | 763 | 41 | 18.0% |
City | Population | Air Quality Index | National Avg. |
Hornbeck, LA | 763 | 30 | 40.0% |
Eau Claire, MI | 763 | 39 | 22.0% |
Dover, MN | 763 | 36 | 28.0% |
Racine, OH | 763 | 25 | 50.0% |
Clarence, PA | 763 | 44 | 12.0% |
Shelter Island Heights, NY | 763 | 41 | 18.0% |