Purvis, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.8 °C (low) to 25.2 °C (high). Annual precipitation averages 1584.4 Millimeters. Purvis is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.4 °C | 15.6 °C | 158.24 mm |
| February | 4.9 °C | 17.8 °C | 134.11 mm |
| March | 8.7 °C | 21.7 °C | 146.05 mm |
| April | 12.2 °C | 25.3 °C | 136.4 mm |
| May | 16.7 °C | 29.2 °C | 123.95 mm |
| June | 20.6 °C | 32.2 °C | 137.41 mm |
| July | 21.8 °C | 33 °C | 153.16 mm |
| August | 21.5 °C | 33.1 °C | 144.53 mm |
| September | 19.2 °C | 31 °C | 118.36 mm |
| October | 13.1 °C | 26.3 °C | 91.44 mm |
| November | 7.4 °C | 20.7 °C | 99.06 mm |
| December | 4.3 °C | 16.5 °C | 141.73 mm |
| Annual | 12.8 °C | 25.2 °C | 1584.44 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |