Jennings, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13.6 °C (low) to 26.4 °C (high). Annual precipitation averages 1330 Millimeters. Jennings is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 4.6 °C | 17.8 °C | 117.6 mm |
| February | 6.2 °C | 19.9 °C | 96.27 mm |
| March | 9.1 °C | 23.3 °C | 118.62 mm |
| April | 12.6 °C | 26.7 °C | 86.87 mm |
| May | 16.8 °C | 30.3 °C | 74.17 mm |
| June | 20.8 °C | 32.5 °C | 173.74 mm |
| July | 22.1 °C | 33.4 °C | 148.34 mm |
| August | 22.1 °C | 33 °C | 155.7 mm |
| September | 19.9 °C | 31.3 °C | 122.94 mm |
| October | 14.5 °C | 27.3 °C | 85.09 mm |
| November | 8.7 °C | 22.5 °C | 62.23 mm |
| December | 6 °C | 19.1 °C | 88.39 mm |
| Annual | 13.6 °C | 26.4 °C | 1329.96 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |