| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 8a: 10°F to 15°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: | 35b - Floodplains and Low Terraces |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 75603 - Longview, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 34 | 37 | 44 | 51 | 61 | 69 | 72 | 71 | 65 | 53 | 43 | 36 | 53 |
| Avg Max Temp (°F) | 56 | 62 | 69 | 77 | 84 | 90 | 94 | 94 | 89 | 79 | 67 | 59 | 77 |
| Avg Precip (In.) | 3.88 | 3.88 | 4.14 | 4.14 | 4.76 | 4.94 | 2.84 | 2.64 | 3.72 | 4.37 | 4.78 | 4.72 | 48.83 |