Deer Park, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.2 °C (low) to 25.3 °C (high). Annual precipitation averages 1622 Millimeters. Deer Park is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.5 °C | 15.6 °C | 158.24 mm |
| February | 4.4 °C | 17.9 °C | 131.57 mm |
| March | 7.7 °C | 21.8 °C | 143 mm |
| April | 11.4 °C | 25.6 °C | 123.95 mm |
| May | 16.3 °C | 29.3 °C | 122.17 mm |
| June | 20.1 °C | 32.2 °C | 163.32 mm |
| July | 21.6 °C | 33 °C | 163.58 mm |
| August | 21.4 °C | 32.9 °C | 145.8 mm |
| September | 18.8 °C | 30.9 °C | 120.14 mm |
| October | 12.2 °C | 26.6 °C | 89.92 mm |
| November | 6.4 °C | 20.9 °C | 115.06 mm |
| December | 3.6 °C | 16.8 °C | 145.29 mm |
| Annual | 12.2 °C | 25.3 °C | 1622.04 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| 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 |