Pass Christian, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 16 °C (low) to 24.1 °C (high). Annual precipitation averages 1716.3 Millimeters. Pass Christian is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 1 - Feb. 10 through the first frost around Dec. 11 - Dec. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 6.4 °C | 15.1 °C | 147.83 mm |
| February | 7.9 °C | 16.7 °C | 113.79 mm |
| March | 11.8 °C | 20.2 °C | 134.87 mm |
| April | 15.7 °C | 23.7 °C | 153.42 mm |
| May | 20.2 °C | 27.5 °C | 142.24 mm |
| June | 23.4 °C | 30.6 °C | 173.48 mm |
| July | 24.3 °C | 31.7 °C | 191.77 mm |
| August | 24.3 °C | 31.8 °C | 179.32 mm |
| September | 22.1 °C | 29.9 °C | 146.3 mm |
| October | 17.1 °C | 25.7 °C | 91.44 mm |
| November | 11.2 °C | 19.9 °C | 112.78 mm |
| December | 7.6 °C | 16.3 °C | 129.03 mm |
| Annual | 16 °C | 24.1 °C | 1716.27 mm |
| Average First Frost Date | Dec. 11 - Dec. 20 |
| Average Last Frost Date | Feb. 1 - Feb. 10 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |