Glidden, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 57.9 °F (low) to 80 °F (high). Annual precipitation averages 43.2 Inches. Glidden is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 1 - Feb. 10 through the first frost around Dec. 11 - Dec. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 40.8 °F | 62.6 °F | 3.58 in. |
| February | 44.7 °F | 66.0 °F | 2.73 in. |
| March | 50.7 °F | 72.6 °F | 3.41 in. |
| April | 57.3 °F | 79.8 °F | 3.72 in. |
| May | 65.5 °F | 86.3 °F | 4.57 in. |
| June | 71.6 °F | 91.7 °F | 4.28 in. |
| July | 73.0 °F | 94.2 °F | 2.62 in. |
| August | 72.8 °F | 96.2 °F | 3.25 in. |
| September | 68.1 °F | 90.9 °F | 3.42 in. |
| October | 58.4 °F | 82.7 °F | 4.24 in. |
| November | 48.8 °F | 72.1 °F | 3.84 in. |
| December | 42.6 °F | 64.5 °F | 3.53 in. |
| Annual | 57.9 °F | 80 °F | 43.19 in. |
| Average First Frost Date | Dec. 11 - Dec. 20 |
| Average Last Frost Date | Feb. 1 - Feb. 10 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |