Broomtown, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.4 °C (low) to 22.3 °C (high). Annual precipitation averages 1417.8 Millimeters. Broomtown is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.9 °C | 10.9 °C | 135.64 mm |
| February | 0.6 °C | 13.2 °C | 134.11 mm |
| March | 4.1 °C | 17.9 °C | 143.76 mm |
| April | 8.2 °C | 22.7 °C | 127 mm |
| May | 13.4 °C | 26.7 °C | 111.25 mm |
| June | 18.1 °C | 30.3 °C | 110.24 mm |
| July | 20.1 °C | 31.9 °C | 109.22 mm |
| August | 19.6 °C | 31.8 °C | 99.06 mm |
| September | 16.1 °C | 29.1 °C | 101.09 mm |
| October | 9.3 °C | 23.4 °C | 90.17 mm |
| November | 3.1 °C | 17.1 °C | 112.52 mm |
| December | 0.6 °C | 12.3 °C | 143.76 mm |
| Annual | 9.4 °C | 22.3 °C | 1417.82 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |