| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 24°F | 45°F | 34°F | 5.4" |
| February | 24°F | 46°F | 34°F | 7.3" |
| March | 33°F | 56°F | 44°F | 6.8" |
| April | 47°F | 71°F | 58°F | 9.8" |
| May | 55°F | 80°F | 67°F | 9.3" |
| June | 63°F | 86°F | 74°F | 5.5" |
| July | 63°F | 86°F | 74°F | 7.5" |
| August | 65°F | 86°F | 74°F | 10.4" |
| September | 57°F | 83°F | 68°F | 6.5" |
| October | 47°F | 70°F | 57°F | 5.4" |
| November | 31°F | 54°F | 42°F | 6.2" |
| December | 32°F | 50°F | 40°F | 8.2" |
| Index | Glasgow | Kentucky | National |
| Air quality index | 43 | 45 | 42 |
| Pollution index | 243,653 | 1,369,131 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 268 |
| Days with moderate air quality | 97 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.003% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Horse Cave, KY | 2,387 | 43 | 14.0% |
| Summer Shade, KY | 236 | 43 | 14.0% |
| Park City, KY | 643 | 43 | 14.0% |
| Cave City, KY | 2,573 | 43 | 14.0% |
| Hiseville, KY | 178 | 43 | 14.0% |
| Glasgow, KY | 14,394 | 43 | 14.0% |
| City | Population | Air Quality Index | National Avg. |
| Robbinsdale, MN | 14,393 | 46 | 8.0% |
| Livingston, CA | 14,392 | 48 | 4.0% |
| Colesville, MD | 14,397 | 47 | 6.0% |
| Mountain View County, AB | 14,390 | n/a | |
| East Milton, FL | 14,388 | 41 | 18.0% |
| Glasgow, KY | 14,394 | 43 | 14.0% |
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