| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F |
| 1990 Hardiness Zone: | Zone 8a: 10F to 15F |
| Average First Frost Date: | Nov. 11 - Nov. 20 |
| Average Last Frost Date: | Mar. 11 - Mar. 20 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 73i - Arkansas/Ouachita River Backswamps |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 71203 - Monroe, LA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 35 | 38 | 46 | 53 | 62 | 69 | 72 | 70 | 64 | 52 | 43 | 37 | 53 |
| Avg Max Temp (°F) | 56 | 61 | 69 | 77 | 84 | 91 | 94 | 93 | 88 | 79 | 67 | 59 | 76 |
| Avg Precip (In.) | 5.5 | 4.47 | 5.6 | 4.87 | 5.45 | 4.45 | 3.59 | 2.83 | 3.33 | 3.96 | 4.59 | 5.3 | 53.95 |