Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 25°F | 46°F | 34°F | 3.6" |
February | 26°F | 48°F | 36°F | 3.1" |
March | 35°F | 60°F | 46°F | 4.3" |
April | 45°F | 72°F | 58°F | 4.6" |
May | 52°F | 78°F | 65°F | 4.9" |
June | 61°F | 86°F | 73°F | 4.6" |
July | 65°F | 87°F | 75°F | 6.8" |
August | 63°F | 87°F | 74°F | 3.6" |
September | 57°F | 82°F | 68°F | 3.5" |
October | 45°F | 70°F | 57°F | 3.7" |
November | 35°F | 60°F | 46°F | 3.0" |
December | 29°F | 49°F | 38°F | 4.4" |
Index | South Williamson | Kentucky | National |
Air quality index | 42 | 45 | 42 |
Pollution index | 780,751 | 1,369,131 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 299 |
Days with moderate air quality | 66 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.000% |
Benzene | 0.010% |
Carbon Tetrachloride | 0.002% |
Lead | 0.000% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Mount Gay-Shamrock, WV | 1,434 | 40 | 20.0% |
Holden, WV | 677 | 40 | 20.0% |
Verdunville, WV | 417 | 40 | 20.0% |
Coal Run Village, KY | 1,319 | 42 | 16.0% |
Kermit, WV | 243 | 42 | 16.0% |
South Williamson, KY | 516 | 42 | 16.0% |
City | Population | Air Quality Index | National Avg. |
Mountain Pine, AR | 516 | 38 | 24.0% |
Olney Springs, CO | 516 | 20 | 60.0% |
Georgetown CDP, IL | 516 | 42 | 16.0% |
New Ross, IN | 516 | 42 | 16.0% |
Tionesta, PA | 516 | 9 | 82.0% |
South Williamson, KY | 516 | 42 | 16.0% |