Eagle Lake, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 14.7 °C (low) to 26.7 °C (high). Annual precipitation averages 1143.8 Millimeters. Eagle Lake is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 11 - Feb. 20 through the first frost around Dec. 1 - Dec. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 5.5 °C | 17.2 °C | 89.15 mm |
| February | 7.6 °C | 19.2 °C | 68.58 mm |
| March | 10.9 °C | 22.8 °C | 85.6 mm |
| April | 14.5 °C | 26.4 °C | 89.92 mm |
| May | 18.9 °C | 30.1 °C | 116.84 mm |
| June | 22.2 °C | 32.9 °C | 116.08 mm |
| July | 22.9 °C | 34.3 °C | 75.69 mm |
| August | 22.8 °C | 35.5 °C | 96.27 mm |
| September | 20.4 °C | 32.6 °C | 104.39 mm |
| October | 14.9 °C | 28.1 °C | 111.76 mm |
| November | 9.8 °C | 22.6 °C | 100.84 mm |
| December | 6.4 °C | 18.3 °C | 88.65 mm |
| Annual | 14.7 °C | 26.7 °C | 1143.77 mm |
| Average First Frost Date | Dec. 1 - Dec. 10 |
| Average Last Frost Date | Feb. 11 - Feb. 20 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |