Webb City, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.2 °C (low) to 21.1 °C (high). Annual precipitation averages 998.5 Millimeters. Webb City is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.8 °C | 8 °C | 29.72 mm |
| February | -3.1 °C | 10.4 °C | 38.1 mm |
| March | 2 °C | 16 °C | 71.63 mm |
| April | 7.3 °C | 21.2 °C | 106.17 mm |
| May | 13.4 °C | 25.4 °C | 143.26 mm |
| June | 18.7 °C | 30.2 °C | 135.89 mm |
| July | 21.1 °C | 33.1 °C | 105.41 mm |
| August | 20.1 °C | 32.8 °C | 94.74 mm |
| September | 15.6 °C | 28.9 °C | 90.68 mm |
| October | 8.6 °C | 22.4 °C | 87.12 mm |
| November | 2.2 °C | 15.6 °C | 53.34 mm |
| December | -3.3 °C | 8.9 °C | 42.42 mm |
| Annual | 8.2 °C | 21.1 °C | 998.48 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |