Randlett, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.4 °F (low) to 75.6 °F (high). Annual precipitation averages 30.2 Inches. Randlett is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 28.9 °F | 53.8 °F | 1.27 in. |
| February | 32.1 °F | 57.9 °F | 1.51 in. |
| March | 40.5 °F | 66.7 °F | 2.36 in. |
| April | 48.4 °F | 75.0 °F | 2.89 in. |
| May | 59.2 °F | 83.3 °F | 4.24 in. |
| June | 68.1 °F | 91.7 °F | 3.45 in. |
| July | 71.9 °F | 96.8 °F | 2.32 in. |
| August | 71.0 °F | 96.6 °F | 2.55 in. |
| September | 63.2 °F | 88.4 °F | 2.95 in. |
| October | 51.1 °F | 77.4 °F | 2.95 in. |
| November | 39.7 °F | 64.8 °F | 2.03 in. |
| December | 30.6 °F | 54.9 °F | 1.66 in. |
| Annual | 50.4 °F | 75.6 °F | 30.18 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |