Sumatra, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 56.1 °F (low) to 79.8 °F (high). Annual precipitation averages 61.3 Inches. Sumatra 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 Dec. 21 - Dec. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 39.4 °F | 64.5 °F | 4.92 in. |
| February | 42.7 °F | 68.2 °F | 4.54 in. |
| March | 48.0 °F | 74.0 °F | 5.36 in. |
| April | 53.9 °F | 80.0 °F | 4.29 in. |
| May | 61.5 °F | 86.9 °F | 3.5 in. |
| June | 69.2 °F | 90.4 °F | 6.62 in. |
| July | 71.3 °F | 91.7 °F | 7.68 in. |
| August | 71.7 °F | 91.1 °F | 7.55 in. |
| September | 68.2 °F | 88.3 °F | 5.99 in. |
| October | 57.9 °F | 82.0 °F | 3.44 in. |
| November | 47.3 °F | 73.2 °F | 3.36 in. |
| December | 42.1 °F | 66.7 °F | 4.03 in. |
| Annual | 56.1 °F | 79.8 °F | 61.28 in. |
| Average First Frost Date | Dec. 21 - Dec. 31 |
| Average Last Frost Date | Jan. 21 - Jan. 31 |
| Average Days With Frost | 10-20 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |