Peterman, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.4 °C (low) to 25 °C (high). Annual precipitation averages 1501.9 Millimeters. Peterman is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.7 °C | 15.3 °C | 141.22 mm |
| February | 3.6 °C | 17.6 °C | 123.95 mm |
| March | 7 °C | 21.7 °C | 143 mm |
| April | 10.4 °C | 25.4 °C | 114.3 mm |
| May | 15.2 °C | 29 °C | 108.46 mm |
| June | 19.5 °C | 31.9 °C | 136.91 mm |
| July | 21 °C | 33.1 °C | 152.91 mm |
| August | 20.8 °C | 32.8 °C | 128.02 mm |
| September | 17.9 °C | 30.7 °C | 114.55 mm |
| October | 11.3 °C | 25.8 °C | 88.14 mm |
| November | 5.4 °C | 20.4 °C | 115.32 mm |
| December | 3.2 °C | 16.5 °C | 135.13 mm |
| Annual | 11.4 °C | 25 °C | 1501.91 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |