Longview, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 54.4 °F (low) to 76.7 °F (high). Annual precipitation averages 49.3 Inches. Longview is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 35.5 °F | 57.1 °F | 4.05 in. |
| February | 39.1 °F | 61.4 °F | 4.16 in. |
| March | 46.0 °F | 68.9 °F | 4.92 in. |
| April | 53.1 °F | 76.9 °F | 4.48 in. |
| May | 62.7 °F | 83.6 °F | 5.01 in. |
| June | 70.0 °F | 90.5 °F | 4.5 in. |
| July | 72.9 °F | 93.9 °F | 2.64 in. |
| August | 72.1 °F | 94.4 °F | 2.87 in. |
| September | 65.6 °F | 88.8 °F | 3.75 in. |
| October | 54.3 °F | 78.8 °F | 4.46 in. |
| November | 44.3 °F | 67.0 °F | 3.76 in. |
| December | 37.2 °F | 58.7 °F | 4.74 in. |
| Annual | 54.4 °F | 76.7 °F | 49.34 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |