Bethpage, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.3 °C (low) to 20.5 °C (high). Annual precipitation averages 1376.2 Millimeters. Bethpage 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 | -2.8 °C | 7.8 °C | 108.97 mm |
| February | -1.4 °C | 10.4 °C | 119.38 mm |
| March | 2.4 °C | 15.4 °C | 124.97 mm |
| April | 7.2 °C | 20.8 °C | 127 mm |
| May | 12.8 °C | 25.3 °C | 142.75 mm |
| June | 17.7 °C | 29.4 °C | 108.71 mm |
| July | 19.8 °C | 31.2 °C | 126.49 mm |
| August | 19.2 °C | 30.9 °C | 102.87 mm |
| September | 15 °C | 27.9 °C | 96.52 mm |
| October | 8.1 °C | 22 °C | 93.98 mm |
| November | 2.2 °C | 15.1 °C | 98.3 mm |
| December | -0.7 °C | 9.8 °C | 126.24 mm |
| Annual | 8.3 °C | 20.5 °C | 1376.18 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |