| 2023 Hardiness Zone: | Zone 9a: 20°F to 25°F |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F |
| 1990 Hardiness Zone: | Zone 8b: 15F to 20F |
| Average First Frost Date: | Nov. 21 - Nov. 30 |
| Average Last Frost Date: | Mar. 1 - Mar. 10 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 35e - Southern Tertiary Uplands |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 71459 - Fort Polk, LA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 37 | 40 | 47 | 53 | 62 | 68 | 71 | 70 | 65 | 53 | 45 | 38 | 54 |
| Avg Max Temp (°F) | 59 | 63 | 71 | 77 | 84 | 90 | 93 | 93 | 88 | 80 | 69 | 61 | 77 |
| Avg Precip (In.) | 5.95 | 4.57 | 5.07 | 4.32 | 5.46 | 5.02 | 4.68 | 3.81 | 4.26 | 4.03 | 5.34 | 6.14 | 58.64 |