Pierson, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 59.6 °F (low) to 81.7 °F (high). Annual precipitation averages 54.3 Inches. Pierson is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 44.7 °F | 68.9 °F | 3.2 in. |
| February | 47.3 °F | 71.9 °F | 2.56 in. |
| March | 51.4 °F | 76.6 °F | 3.2 in. |
| April | 57.3 °F | 82.3 °F | 2.75 in. |
| May | 63.8 °F | 87.4 °F | 3.91 in. |
| June | 70.4 °F | 90.7 °F | 7.9 in. |
| July | 72.2 °F | 91.9 °F | 7.32 in. |
| August | 72.4 °F | 91.5 °F | 7.92 in. |
| September | 70.5 °F | 88.4 °F | 7.07 in. |
| October | 63.2 °F | 83.2 °F | 3.82 in. |
| November | 54.0 °F | 76.0 °F | 2.17 in. |
| December | 48.3 °F | 71.0 °F | 2.51 in. |
| Annual | 59.6 °F | 81.7 °F | 54.33 in. |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |