New Site, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.2 °C (low) to 22.4 °C (high). Annual precipitation averages 1501.4 Millimeters. New Site is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.7 °C | 10.4 °C | 131.32 mm |
| February | 1 °C | 13 °C | 132.08 mm |
| March | 5 °C | 17.9 °C | 139.19 mm |
| April | 9.6 °C | 23 °C | 139.19 mm |
| May | 14.8 °C | 27.1 °C | 142.75 mm |
| June | 19.3 °C | 30.8 °C | 119.63 mm |
| July | 21.2 °C | 32.4 °C | 117.35 mm |
| August | 20.4 °C | 32.4 °C | 107.44 mm |
| September | 16.5 °C | 29.4 °C | 106.43 mm |
| October | 9.7 °C | 23.7 °C | 98.81 mm |
| November | 4 °C | 17.1 °C | 111.25 mm |
| December | 1.1 °C | 11.9 °C | 155.96 mm |
| Annual | 10.2 °C | 22.4 °C | 1501.4 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |