Kemp, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.1 °C (low) to 23.4 °C (high). Annual precipitation averages 1116.8 Millimeters. Kemp is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.4 °C | 11.7 °C | 65.28 mm |
| February | 1.6 °C | 14.1 °C | 70.87 mm |
| March | 5.9 °C | 18.4 °C | 98.3 mm |
| April | 10.2 °C | 22.8 °C | 97.54 mm |
| May | 15.6 °C | 26.9 °C | 137.67 mm |
| June | 20.3 °C | 31.5 °C | 109.47 mm |
| July | 22.4 °C | 34.3 °C | 75.18 mm |
| August | 21.7 °C | 34.6 °C | 70.1 mm |
| September | 17.7 °C | 30.6 °C | 96.77 mm |
| October | 11.2 °C | 24.8 °C | 114.3 mm |
| November | 5.6 °C | 18.1 °C | 90.42 mm |
| December | 0.9 °C | 12.8 °C | 90.93 mm |
| Annual | 11.1 °C | 23.4 °C | 1116.83 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 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 | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |