Kingston, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.6 °F (low) to 74 °F (high). Annual precipitation averages 42.3 Inches. Kingston 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 | 30.5 °F | 52.7 °F | 2.34 in. |
| February | 34.2 °F | 56.8 °F | 2.35 in. |
| March | 42.1 °F | 65.3 °F | 3.4 in. |
| April | 49.9 °F | 73.7 °F | 3.87 in. |
| May | 59.7 °F | 80.5 °F | 5.87 in. |
| June | 68.6 °F | 89.0 °F | 4.66 in. |
| July | 72.3 °F | 94.0 °F | 2.86 in. |
| August | 71.4 °F | 94.2 °F | 2.78 in. |
| September | 64.0 °F | 86.9 °F | 3.95 in. |
| October | 52.3 °F | 76.3 °F | 4.25 in. |
| November | 41.5 °F | 64.5 °F | 2.9 in. |
| December | 32.8 °F | 54.4 °F | 3.08 in. |
| Annual | 51.6 °F | 74 °F | 42.31 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 | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |