Pattison, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.2 °C (low) to 24.7 °C (high). Annual precipitation averages 1499.1 Millimeters. Pattison 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 | 2.4 °C | 14.1 °C | 148.59 mm |
| February | 3.9 °C | 16.7 °C | 139.19 mm |
| March | 7.8 °C | 21 °C | 145.29 mm |
| April | 11.7 °C | 24.9 °C | 143 mm |
| May | 16.6 °C | 28.7 °C | 114.3 mm |
| June | 20.5 °C | 31.9 °C | 120.9 mm |
| July | 21.9 °C | 33.2 °C | 121.16 mm |
| August | 21.4 °C | 33.4 °C | 108.97 mm |
| September | 18.3 °C | 30.9 °C | 100.08 mm |
| October | 11.9 °C | 25.9 °C | 99.57 mm |
| November | 6.6 °C | 19.8 °C | 119.63 mm |
| December | 3.6 °C | 15.4 °C | 138.43 mm |
| Annual | 12.2 °C | 24.7 °C | 1499.11 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 |