Waskom, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.5 °C (low) to 24.6 °C (high). Annual precipitation averages 1354.3 Millimeters. Waskom 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 | 2.1 °C | 13.8 °C | 119.13 mm |
| February | 4.1 °C | 16.1 °C | 114.05 mm |
| March | 7.8 °C | 20.3 °C | 131.83 mm |
| April | 11.7 °C | 24.5 °C | 127.51 mm |
| May | 17 °C | 28.4 °C | 117.09 mm |
| June | 21.1 °C | 32.1 °C | 119.89 mm |
| July | 22.7 °C | 34.1 °C | 89.41 mm |
| August | 22.3 °C | 34.4 °C | 81.53 mm |
| September | 18.8 °C | 31.3 °C | 94.74 mm |
| October | 12.3 °C | 25.7 °C | 120.65 mm |
| November | 6.7 °C | 19.2 °C | 107.95 mm |
| December | 3.2 °C | 14.7 °C | 130.56 mm |
| Annual | 12.5 °C | 24.6 °C | 1354.34 mm |
| 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 : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |