| 2023 Hardiness Zone: | Zone 9a: 20°F to 25°F |
| 2012 Hardiness Zone: | Zone 9a: 20°F to 25°F |
| 1990 Hardiness Zone: | Zone 8b: 15F to 20F |
| Average First Frost Date: | Nov. 21 - Nov. 30 |
| Average Last Frost Date: | Feb. 21 - Feb. 29 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 73k - Southern Holocene Meander Belts |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 70577 - Port Barre, LA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 40 | 43 | 50 | 56 | 64 | 70 | 72 | 72 | 67 | 56 | 48 | 42 | 57 |
| Avg Max Temp (°F) | 61 | 65 | 72 | 78 | 85 | 90 | 92 | 92 | 88 | 81 | 71 | 64 | 78 |
| Avg Precip (In.) | 6.34 | 4.57 | 4.95 | 5.01 | 5.76 | 5.68 | 5.59 | 4.66 | 4.79 | 4.33 | 5.22 | 5.41 | 62.3 |