Boynton Beach, Florida has a Tropical Rainforest climate (Köppen classification: Af). Average annual temperatures range from 69.7 °F (low) to 82.3 °F (high). Annual precipitation averages 61.1 Inches. Boynton Beach is located in USDA Plant Hardiness Zone 10b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 59.7 °F | 74.5 °F | 3.24 in. |
| February | 61.4 °F | 76.4 °F | 2.81 in. |
| March | 64.1 °F | 78.3 °F | 3.29 in. |
| April | 68.6 °F | 81.0 °F | 3.08 in. |
| May | 72.4 °F | 84.1 °F | 4.24 in. |
| June | 75.7 °F | 87.0 °F | 9.03 in. |
| July | 77.0 °F | 88.6 °F | 5.6 in. |
| August | 77.4 °F | 89.0 °F | 7.87 in. |
| September | 76.6 °F | 87.3 °F | 8.48 in. |
| October | 73.6 °F | 84.5 °F | 6.61 in. |
| November | 67.4 °F | 80.2 °F | 4.12 in. |
| December | 63.0 °F | 76.8 °F | 2.75 in. |
| Annual | 69.7 °F | 82.3 °F | 61.12 in. |
| Average First Frost Date | No Frost |
| Average Last Frost Date | |
| Average Days With Frost | Frost Free |
| Plant Hardiness Zone | Zone 10b : 35°F to 30°F |
| Plant Hardiness Zone - 2012 | Zone 10b : 35°F to 30°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Af - Tropical Rainforest |