| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 29°F | 49°F | 38°F | 5.2" |
| February | 32°F | 54°F | 42°F | 4.5" |
| March | 40°F | 65°F | 52°F | 5.8" |
| April | 49°F | 75°F | 61°F | 6.8" |
| May | 57°F | 81°F | 68°F | 3.4" |
| June | 65°F | 89°F | 76°F | 5.4" |
| July | 69°F | 90°F | 78°F | 6.3" |
| August | 67°F | 89°F | 77°F | 4.6" |
| September | 61°F | 84°F | 71°F | 4.6" |
| October | 49°F | 74°F | 60°F | 3.4" |
| November | 38°F | 62°F | 49°F | 4.5" |
| December | 35°F | 53°F | 43°F | 6.8" |
| Index | Plainview | Tennessee | National |
| Air quality index | 46 | 76 | 42 |
| Pollution index | 1,511,600 | 2,454,916 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 227 |
| Days with moderate air quality | 135 |
| Days w/ poor A.Q. for sensitive groups | 3 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| New Market, TN | 1,576 | 44 | 12.0% |
| Norris, TN | 1,659 | 46 | 8.0% |
| Luttrell, TN | 1,041 | 46 | 8.0% |
| Mascot, TN | 2,681 | 46 | 8.0% |
| Maynardville, TN | 2,567 | 46 | 8.0% |
| Plainview, TN | 2,110 | 46 | 8.0% |
| City | Population | Air Quality Index | National Avg. |
| Dublin, PA | 2,110 | 42 | 16.0% |
| Springfield, SD | 2,110 | 36 | 28.0% |
| Stony Plain 135, AB | 2,110 | n/a | |
| Okanagan-Similkameen A, BC | 2,109 | n/a | |
| Pawnee, OK | 2,111 | 40 | 20.0% |
| Plainview, TN | 2,110 | 46 | 8.0% |
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