Elgin, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13.8 °C (low) to 26.2 °C (high). Annual precipitation averages 902.2 Millimeters. Elgin is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 21 - Feb. 29 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.7 °C | 16.2 °C | 74.68 mm |
| February | 5.8 °C | 18.2 °C | 54.1 mm |
| March | 9.4 °C | 22.1 °C | 74.42 mm |
| April | 13.2 °C | 26.1 °C | 62.99 mm |
| May | 18.2 °C | 29.8 °C | 113.54 mm |
| June | 21.8 °C | 33.3 °C | 75.69 mm |
| July | 23 °C | 35.3 °C | 51.05 mm |
| August | 22.8 °C | 35.6 °C | 65.28 mm |
| September | 20.1 °C | 32.4 °C | 76.71 mm |
| October | 14.4 °C | 27.5 °C | 100.33 mm |
| November | 8.7 °C | 21.4 °C | 77.98 mm |
| December | 4.7 °C | 16.9 °C | 75.44 mm |
| Annual | 13.8 °C | 26.2 °C | 902.21 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |