Hollow Rock, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9 °C (low) to 21.2 °C (high). Annual precipitation averages 1397 Millimeters. Hollow Rock is located in USDA Plant Hardiness Zone 7b. 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 | -2.2 °C | 8.4 °C | 108.2 mm |
| February | -0.4 °C | 11.1 °C | 116.33 mm |
| March | 3.6 °C | 16.2 °C | 134.62 mm |
| April | 8.6 °C | 21.8 °C | 132.33 mm |
| May | 13.8 °C | 26 °C | 146.81 mm |
| June | 18.4 °C | 30.1 °C | 111.76 mm |
| July | 20.4 °C | 31.8 °C | 108.2 mm |
| August | 19.4 °C | 31.7 °C | 92.71 mm |
| September | 15.4 °C | 28.5 °C | 99.82 mm |
| October | 8.7 °C | 22.6 °C | 97.54 mm |
| November | 3.1 °C | 15.7 °C | 115.82 mm |
| December | -0.4 °C | 9.9 °C | 132.84 mm |
| Annual | 9 °C | 21.2 °C | 1396.98 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 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |