| 2023 Hardiness Zone: | Zone 9a: 20°F to 25°F Zone 9b: 25°F to 30°F | |
| 2012 Hardiness Zone: | Zone 9a: 20°F to 25°F | |
| 1990 Hardiness Zone: | Zone 9a: 20F to 25F | |
| Average First Frost Date: | Dec. 11 - Dec. 20 | |
| Average Last Frost Date: | Feb. 11 - Feb. 20 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 34a - Northern Humid Gulf Coastal Prairies | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 70665 - Sulphur, LA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 41 | 44 | 50 | 57 | 65 | 71 | 73 | 73 | 68 | 58 | 49 | 43 | 58 |
| Avg Max Temp (°F) | 60 | 64 | 71 | 77 | 84 | 89 | 91 | 91 | 88 | 80 | 70 | 63 | 77 |
| Avg Precip (In.) | 5.72 | 3.55 | 3.84 | 3.8 | 5.75 | 6.1 | 5.24 | 4.86 | 5.74 | 4.33 | 4.79 | 4.99 | 58.72 |