Allentown, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 56 °F (low) to 77.7 °F (high). Annual precipitation averages 69 Inches. Allentown is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 21 - Feb. 29 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 39.0 °F | 61.0 °F | 6.04 in. |
| February | 42.1 °F | 65.1 °F | 4.88 in. |
| March | 47.9 °F | 71.4 °F | 5.79 in. |
| April | 54.6 °F | 77.7 °F | 5.54 in. |
| May | 62.7 °F | 84.8 °F | 4.29 in. |
| June | 70.2 °F | 89.5 °F | 7.73 in. |
| July | 72.0 °F | 91.0 °F | 7.6 in. |
| August | 71.7 °F | 90.6 °F | 6.82 in. |
| September | 67.5 °F | 87.5 °F | 6.15 in. |
| October | 56.7 °F | 80.2 °F | 4.25 in. |
| November | 46.1 °F | 70.2 °F | 4.69 in. |
| December | 41.7 °F | 63.6 °F | 5.19 in. |
| Annual | 56 °F | 77.7 °F | 68.97 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |