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 | Graball | 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. |
Fairfield, TN | 200 | 43 | 14.0% |
Mitchellville, TN | 160 | 43 | 14.0% |
Bransford, TN | 269 | 43 | 14.0% |
Portland, TN | 12,928 | 43 | 14.0% |
Westmoreland, TN | 2,622 | 43 | 14.0% |
Graball, TN | 105 | 45 | 10.0% |
City | Population | Air Quality Index | National Avg. |
Buckeye, IA | 105 | 37 | 26.0% |
Tingley, IA | 105 | 39 | 22.0% |
Unionville, IA | 105 | 39 | 22.0% |
Lima, IL | 105 | 41 | 18.0% |
Raglesville, IN | 105 | 1 | 98.0% |
Graball, TN | 105 | 45 | 10.0% |