Ratliff City, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.1 °C (low) to 23.3 °C (high). Annual precipitation averages 919 Millimeters. Ratliff City is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.9 °C | 11.4 °C | 41.4 mm |
| February | 0.2 °C | 13.6 °C | 45.72 mm |
| March | 4.9 °C | 18.6 °C | 67.06 mm |
| April | 9.3 °C | 22.9 °C | 89.15 mm |
| May | 14.9 °C | 27 °C | 134.62 mm |
| June | 19.8 °C | 31.6 °C | 116.59 mm |
| July | 21.9 °C | 34.7 °C | 65.28 mm |
| August | 21.4 °C | 34.8 °C | 71.63 mm |
| September | 17.1 °C | 30.3 °C | 92.2 mm |
| October | 10.4 °C | 24.3 °C | 90.68 mm |
| November | 4.3 °C | 17.8 °C | 52.83 mm |
| December | -0.7 °C | 12.1 °C | 51.82 mm |
| Annual | 10.1 °C | 23.3 °C | 918.98 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |