Dunmor, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8 °C (low) to 20 °C (high). Annual precipitation averages 1322.6 Millimeters. Dunmor is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3.5 °C | 6.6 °C | 97.03 mm |
| February | -1.9 °C | 9.2 °C | 103.38 mm |
| March | 2.2 °C | 14.4 °C | 121.41 mm |
| April | 7.5 °C | 20.5 °C | 124.46 mm |
| May | 12.9 °C | 25.2 °C | 144.78 mm |
| June | 17.9 °C | 29.6 °C | 114.81 mm |
| July | 20 °C | 31.3 °C | 108.2 mm |
| August | 18.4 °C | 30.9 °C | 97.28 mm |
| September | 14.4 °C | 27.8 °C | 96.27 mm |
| October | 8.1 °C | 21.7 °C | 98.81 mm |
| November | 1.9 °C | 14.4 °C | 99.06 mm |
| December | -1.6 °C | 8.5 °C | 117.09 mm |
| Annual | 8 °C | 20 °C | 1322.58 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |