Morriston, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 58.7 °F (low) to 81.9 °F (high). Annual precipitation averages 55.3 Inches. Morriston is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 11 - Feb. 20 through the first frost around Dec. 11 - Dec. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 43.3 °F | 68.7 °F | 3.57 in. |
| February | 46.7 °F | 72.1 °F | 2.95 in. |
| March | 50.1 °F | 77.0 °F | 3.84 in. |
| April | 56.3 °F | 82.2 °F | 2.78 in. |
| May | 63.4 °F | 88.2 °F | 3.26 in. |
| June | 70.5 °F | 91.1 °F | 8.27 in. |
| July | 71.9 °F | 91.4 °F | 7.6 in. |
| August | 72.1 °F | 91.0 °F | 8.48 in. |
| September | 70.1 °F | 89.7 °F | 6.45 in. |
| October | 61.7 °F | 84.2 °F | 3.09 in. |
| November | 51.7 °F | 76.5 °F | 1.96 in. |
| December | 46.4 °F | 70.9 °F | 3.09 in. |
| Annual | 58.7 °F | 81.9 °F | 55.34 in. |
| Average First Frost Date | Dec. 11 - Dec. 20 |
| Average Last Frost Date | Feb. 11 - Feb. 20 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |