Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 29°F | 52°F | 39°F | 4.2" |
February | 31°F | 54°F | 42°F | 3.4" |
March | 39°F | 65°F | 52°F | 4.1" |
April | 49°F | 75°F | 62°F | 5.6" |
May | 56°F | 82°F | 69°F | 5.1" |
June | 66°F | 90°F | 78°F | 3.9" |
July | 69°F | 92°F | 80°F | 5.0" |
August | 69°F | 92°F | 79°F | 4.5" |
September | 61°F | 86°F | 73°F | 4.0" |
October | 49°F | 75°F | 61°F | 4.0" |
November | 38°F | 64°F | 50°F | 3.8" |
December | 33°F | 54°F | 43°F | 5.1" |
Index | Shackle Island | Tennessee | National |
Air quality index | 45 | 76 | 42 |
Pollution index | 1,764,100 | 2,454,916 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 229 |
Days with moderate air quality | 135 |
Days w/ poor A.Q. for sensitive groups | 1 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.001% |
Benzene | 0.030% |
Carbon Tetrachloride | 0.004% |
Lead | 0.030% |
Mercury | 0.010% |
City | Population | Air Quality Index | National Avg. |
Portland, TN | 12,928 | 43 | 14.0% |
Mount Juliet, TN | 35,834 | 45 | 10.0% |
Hendersonville, TN | 57,888 | 45 | 10.0% |
Millersville, TN | 6,403 | 45 | 10.0% |
Ridgetop, TN | 2,441 | 45 | 10.0% |
Shackle Island, TN | 4,010 | 45 | 10.0% |
City | Population | Air Quality Index | National Avg. |
Ovilla, TX | 4,010 | 51 | 2.0% |
Esparto, CA | 4,009 | 35 | 30.0% |
Nassau Bay, TX | 4,009 | 52 | 4.0% |
Gardnertown, NY | 4,011 | 36 | 28.0% |
Greencastle, PA | 4,008 | 40 | 20.0% |
Shackle Island, TN | 4,010 | 45 | 10.0% |