Pierson, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 15.4 °C (low) to 27.6 °C (high). Annual precipitation averages 1380 Millimeters. Pierson is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 7.1 °C | 20.5 °C | 81.28 mm |
| February | 8.5 °C | 22.2 °C | 65.02 mm |
| March | 10.8 °C | 24.8 °C | 81.28 mm |
| April | 14.1 °C | 27.9 °C | 69.85 mm |
| May | 17.7 °C | 30.8 °C | 99.31 mm |
| June | 21.3 °C | 32.6 °C | 200.66 mm |
| July | 22.3 °C | 33.3 °C | 185.93 mm |
| August | 22.4 °C | 33.1 °C | 201.17 mm |
| September | 21.4 °C | 31.3 °C | 179.58 mm |
| October | 17.3 °C | 28.4 °C | 97.03 mm |
| November | 12.2 °C | 24.4 °C | 55.12 mm |
| December | 9.1 °C | 21.7 °C | 63.75 mm |
| Annual | 15.4 °C | 27.6 °C | 1379.98 mm |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |