Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 27°F | 48°F | 37°F | 4.1" |
February | 28°F | 49°F | 37°F | 2.4" |
March | 35°F | 60°F | 47°F | 3.1" |
April | 43°F | 70°F | 56°F | 4.1" |
May | 52°F | 77°F | 64°F | 2.9" |
June | 61°F | 85°F | 72°F | 3.6" |
July | 64°F | 86°F | 74°F | 5.0" |
August | 64°F | 88°F | 75°F | 2.9" |
September | 57°F | 81°F | 68°F | 3.8" |
October | 45°F | 70°F | 56°F | 2.7" |
November | 34°F | 60°F | 46°F | 2.7" |
December | 30°F | 50°F | 39°F | 4.3" |
Index | Gray | Tennessee | National |
Air quality index | 45 | 76 | 42 |
Pollution index | 1,072,440 | 2,454,916 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 236 |
Days with moderate air quality | 108 |
Days w/ poor A.Q. for sensitive groups | 21 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.040% |
Benzene | 0.010% |
Carbon Tetrachloride | 0.001% |
Lead | 0.010% |
Mercury | 0.001% |
City | Population | Air Quality Index | National Avg. |
Mount Carmel, TN | 5,297 | 45 | 10.0% |
Church Hill, TN | 6,664 | 45 | 10.0% |
Elizabethton, TN | 13,568 | 45 | 10.0% |
Telford, TN | 990 | 45 | 10.0% |
Spurgeon, TN | 4,426 | 45 | 10.0% |
Gray, TN | 1,342 | 45 | 10.0% |
City | Population | Air Quality Index | National Avg. |
Millbrook, NY | 1,342 | 36 | 28.0% |
Albion, PA | 1,342 | 36 | 28.0% |
Mendon, UT | 1,342 | 44 | 12.0% |
Kittitas, WA | 1,342 | 23 | 54.0% |
Independence, WI | 1,342 | 15 | 70.0% |
Gray, TN | 1,342 | 45 | 10.0% |