Langston, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.8 °C (low) to 22.1 °C (high). Annual precipitation averages 916.4 Millimeters. Langston is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3.9 °C | 9.6 °C | 31.5 mm |
| February | -2.1 °C | 11.4 °C | 38.61 mm |
| March | 2.7 °C | 16.9 °C | 66.04 mm |
| April | 7.8 °C | 21.9 °C | 99.31 mm |
| May | 13.8 °C | 26.3 °C | 124.46 mm |
| June | 19.3 °C | 31.2 °C | 122.17 mm |
| July | 21.6 °C | 34.3 °C | 84.58 mm |
| August | 20.7 °C | 34.1 °C | 86.61 mm |
| September | 16.1 °C | 29.8 °C | 84.84 mm |
| October | 9.1 °C | 23.2 °C | 84.33 mm |
| November | 2.7 °C | 16.5 °C | 51.82 mm |
| December | -2.7 °C | 10.1 °C | 42.16 mm |
| Annual | 8.8 °C | 22.1 °C | 916.43 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |