Glencoe, Kentucky has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.6 °C (low) to 18.6 °C (high). Annual precipitation averages 1185.9 Millimeters. Glencoe is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.1 °C | 4.8 °C | 86.11 mm |
| February | -3.9 °C | 7.3 °C | 77.22 mm |
| March | 0.2 °C | 12.6 °C | 105.92 mm |
| April | 5.7 °C | 19.3 °C | 117.6 mm |
| May | 11.4 °C | 24.1 °C | 132.59 mm |
| June | 16.1 °C | 28.2 °C | 122.43 mm |
| July | 18.4 °C | 30 °C | 108.71 mm |
| August | 17.8 °C | 29.6 °C | 87.63 mm |
| September | 13.6 °C | 26.4 °C | 82.55 mm |
| October | 6.9 °C | 20.2 °C | 84.07 mm |
| November | 1 °C | 13.1 °C | 85.34 mm |
| December | -2.7 °C | 7.3 °C | 95.76 mm |
| Annual | 6.6 °C | 18.6 °C | 1185.93 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |