Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 31°F | 54°F | 41°F | 5.0" |
February | 32°F | 57°F | 44°F | 3.9" |
March | 41°F | 67°F | 53°F | 4.8" |
April | 49°F | 77°F | 62°F | 6.0" |
May | 57°F | 83°F | 69°F | 3.7" |
June | 66°F | 91°F | 78°F | 3.4" |
July | 70°F | 92°F | 80°F | 5.5" |
August | 70°F | 92°F | 80°F | 4.2" |
September | 63°F | 87°F | 73°F | 4.5" |
October | 50°F | 76°F | 62°F | 4.3" |
November | 38°F | 65°F | 51°F | 4.5" |
December | 35°F | 56°F | 45°F | 6.5" |
Index | Signal Mountain | Tennessee | National |
Air quality index | 46 | 76 | 42 |
Pollution index | 271,356 | 2,454,916 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 230 |
Days with moderate air quality | 135 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.000% |
Benzene | 0.004% |
Carbon Tetrachloride | 0.001% |
Lead | 0.000% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Fort Oglethorpe, GA | 9,877 | 46 | 8.0% |
Rossville, GA | 3,989 | 46 | 8.0% |
Falling Water, TN | 1,534 | 46 | 8.0% |
Lookout Mountain, TN | 2,013 | 46 | 8.0% |
Ridgeside, TN | 850 | 46 | 8.0% |
Signal Mountain, TN | 8,574 | 46 | 8.0% |
City | Population | Air Quality Index | National Avg. |
Berthoud, CO | 8,574 | 48 | 4.0% |
Mount Pleasant, IA | 8,574 | 29 | 42.0% |
Stony Brook University, NY | 8,574 | 43 | 14.0% |
Hailey, ID | 8,575 | 20 | 60.0% |
Otterburn Park, QC | 8,571 | n/a | |
Signal Mountain, TN | 8,574 | 46 | 8.0% |