Ponchatoula, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 57.4 °F (low) to 78.7 °F (high). Annual precipitation averages 65.2 Inches. Ponchatoula is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Jan. 21 - Jan. 31 through the first frost around Jan. 1 - Jan. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 40.4 °F | 61.9 °F | 5.75 in. |
| February | 43.8 °F | 65.9 °F | 4.93 in. |
| March | 49.8 °F | 72.6 °F | 5.36 in. |
| April | 56.3 °F | 78.8 °F | 5.3 in. |
| May | 64.3 °F | 85.5 °F | 5.4 in. |
| June | 71.1 °F | 90.6 °F | 6.82 in. |
| July | 72.3 °F | 92.2 °F | 6.56 in. |
| August | 72.2 °F | 92.4 °F | 6.6 in. |
| September | 68.5 °F | 88.7 °F | 4.84 in. |
| October | 59.1 °F | 81.0 °F | 4.17 in. |
| November | 48.8 °F | 70.6 °F | 4.08 in. |
| December | 42.7 °F | 63.9 °F | 5.41 in. |
| Annual | 57.4 °F | 78.7 °F | 65.22 in. |
| Average First Frost Date | Jan. 1 - Jan. 10 |
| Average Last Frost Date | Jan. 21 - Jan. 31 |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |