Seminary, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.2 °C (low) to 24.9 °C (high). Annual precipitation averages 1526.5 Millimeters. Seminary is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.4 °C | 15.1 °C | 152.4 mm |
| February | 4.2 °C | 17.4 °C | 132.59 mm |
| March | 7.7 °C | 21.3 °C | 150.37 mm |
| April | 11.6 °C | 25 °C | 128.27 mm |
| May | 16.3 °C | 28.9 °C | 110.74 mm |
| June | 20.3 °C | 31.9 °C | 129.54 mm |
| July | 21.7 °C | 33.1 °C | 145.54 mm |
| August | 21.4 °C | 33 °C | 131.57 mm |
| September | 18.7 °C | 30.8 °C | 103.89 mm |
| October | 12.1 °C | 25.9 °C | 87.38 mm |
| November | 6.3 °C | 20.3 °C | 109.47 mm |
| December | 3.6 °C | 16.1 °C | 144.78 mm |
| Annual | 12.2 °C | 24.9 °C | 1526.54 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| 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 |